Fishing district boundaries:Čiastkové povodie Gidry od ústia Štefanovského potoka pri obci Budmerice po cestný most Častá – Dubová. V úseku od spodného oplotenia rybochovného zariadenia SRZ MsO Pezinok po cestný most Častá – Dubová je chránená rybárska oblasť.
Gidra č. 1b is carp fishing district no. 1-0151-1-1.It lies in Trnava district (Trnava Region).It belongs to the watercourse Gidra.The district is 5.6 km long.The district is managed byCity SRZ organization Pezinok
Is it worth going today? Conditions score, which species are biting today, the best window of the day, weather, pressure, sun, moon and solunar windowsNajlepšie okno6:00–8:00Voda4,3 °C21
The bite score for fishing district Gidra č. 1b is calculated for 9 game fish species from the weather right at the water, water temperature, light and air pressure.The forecast applies to the location 48.373° N, 17.381° E.
Fishing conditionsFish activity indexOur calculation (0–100): the base is set by water temperature, adjusted by light, turbidity, oxygen, weather and other factors according to how well they are supported by studies. For each factor you can see the confidence and the source. A planning aid, not a bite forecast.
The score, the best window of the day and what pushes it up or down
Fishing conditions
Fish activity indexOur calculation (0–100): the base is set by water temperature, adjusted by light, turbidity, oxygen, weather and other factors according to how well they are supported by studies. For each factor you can see the confidence and the source. A planning aid, not a bite forecast.
Loading data…
Čo dnes berie
Skóre podmienok vychádza z toho, ako teplota vody vyhovuje druhom revíru, ktoré sa dnes smú loviť. Tu je rozpísané na druhy: pri teplote vody 4,3 °C je niektorým lepšie a iným horšie než priemeru. Číslo je odhad podmienok pre druh, nie prísľub záberu.
30
Plotica červenookáVoda 4,3 °C je pod jeho optimom 12 až 24 °C. Typický pre túto vodu.najlepšie o 7:00 (36)
25
Sumec veľkýVoda 4,3 °C je pod jeho optimom 18 až 28 °C, za šera a v noci loví najaktívnejšie. Typický pre túto vodu.najlepšie o 7:00 (29)
25
Zubáč veľkoústyVoda 4,3 °C je pod jeho optimom 14 až 25 °C, za šera a v noci loví najaktívnejšie. Typický pre túto vodu.najlepšie o 7:00 (29)
21
Pleskáč vysokýVoda 4,3 °C je pod jeho optimom 14 až 24 °C. Typický pre túto vodu.najlepšie o 7:00 (27)
20
Ostriež zelenkavýVoda 4,3 °C je pod jeho optimom 12 až 24 °C, loví zrakom a v noci berie slabo. Typický pre túto vodu.najlepšie o 7:00 (38)
19
Kapor rybničnýVoda 4,3 °C je pod jeho optimom 18 až 28 °C. Zarybňuje sa.najlepšie o 7:00 (25)
19
Lieň sliznatýVoda 4,3 °C je pod jeho optimom 18 až 26 °C. Typický pre túto vodu.najlepšie o 7:00 (25)
9
Boleň dravýVoda 4,3 °C je pod jeho optimom 12 až 24 °C, loví zrakom a v noci berie slabo. Typický pre túto vodu.najlepšie o 7:00 (27)
9
Šťuka severnáVoda 4,3 °C je pod jeho optimom 10 až 21 °C, loví zrakom a v noci berie slabo. Typický pre túto vodu.najlepšie o 7:00 (27)
Druh sa od skóre podmienok líši o to, o koľko mu teplota vody vyhovuje viac než priemeru druhov revíru (teplotné nároky z FishBase, váha druhu podľa úlovkov, zarybnenia a pozorovaní), a o svetlo a zákal: zubáč, sumec, úhor a mieň lovia za šera a v zakalenej vode, šťuka, ostriež, boleň a pstruhy zrakom (Lester a kol. 2004, Sweka a Hartman 2001). Vietor, zrážky, vodný stav a kyslík sú pre všetky druhy rovnaké.
Air4 °CPressure1 006 hPa
Weather and forecast for fishing district Gidra č. 1b
Hour by hour, pressure and the next few days
Weather and forecast
Loading data…
Sunrise6:51Sunset16:17
Sky: sun, moon and solunar windowsSolunar periodsCalculated from the position of the Moon: major periods (about 2 h) around the Moon's passage above and below the horizon, minor periods (about 1 h) around moonrise and moonset. A scientifically unconfirmed theory: in a study of 361 fishing trips (Quigley et al. 2023) it did not predict bites. We treat it as a hypothesis with a weight of at most ±2 points.
Where the sun and moon are right now and when the best windows of the day will come
Sky: sun and moon
Solunar periodsCalculated from the position of the Moon: major periods (about 2 h) around the Moon's passage above and below the horizon, minor periods (about 1 h) around moonrise and moonset. A scientifically unconfirmed theory: in a study of 361 fishing trips (Quigley et al. 2023) it did not predict bites. We treat it as a hypothesis with a weight of at most ±2 points.
Drag along the axis to see where the sun and moon will be.
Sun
Moon
Golden hour
Main period
Minor period
Sun
Dawn06:18
Sunrise06:51
Sunset16:17
Dusk16:50
The day lasts 9 h 25 min.
MoonMoon phaseAt full and new moon the gravitational effect is strongest. On a clear full-moon night predators and carp often feed at night, and the day after may be weaker.
Waxing crescent4% illuminated
Moonrise09:28
Moonset17:00
Full moon around 24 Nov, new moon around 9 Dec.
Windows of the daySolunar periodsCalculated from the position of the Moon: major periods (about 2 h) around the Moon's passage above and below the horizon, minor periods (about 1 h) around moonrise and moonset. A scientifically unconfirmed theory: in a study of 361 fishing trips (Quigley et al. 2023) it did not predict bites. We treat it as a hypothesis with a weight of at most ±2 points.
Main solunar period23:50–01:50
Golden hour (morning)06:21–07:51
Minor solunar period08:58–09:58
Main solunar period12:15–14:15
Golden hour (evening)15:17–16:47
Minor solunar period16:30–17:30
Solunar theory is not scientifically confirmed; we treat it as a supplement. The golden hour is the time around sunrise and sunset, when fish often bite.
Rules and permits
Am I allowed to fish here? Closed seasons, fishing hours, size limits, daily limit, permit price, where to buy it, contacts and the managerWater typeCarpOrganizationCity SRZ organization Pezinok
Fishing district Gidra č. 1b is classed as carp waters.Permits for fishing district Gidra č. 1b are issued byCity SRZ organization Pezinok
Water typeKaprový
Law and fishing rules at fishing district Gidra č. 1b
Closed season, fishing hours, minimum sizes and daily limit. For guidance only: check them in the fishing regulations of the fishing district
Closed season for all fish
§ 13, paragraphs 3 and 5 of the Act
15 Mar – 31 May
JanFebMarAprMayJuneJulyAugSepOctNovDec
today
fishing for all fish prohibitedoutside this period
The ban does not apply 1 May – 31 May during fishing competitions (§ 13, para. 3). It also does not apply to carp waters that are watercourses (but not reservoirs, dead-end, dead and cut-off arms), or to other water bodies (§ 13, para. 5). Check in the fishing regulations of the district which case your district is.
The protection periods by species (below) apply independently of this closed season.
Daily fishing hours
§ 11 of the Decree
Applies only outside the closed season. Outside these hours fishing is prohibited (§ 14(b) of the Act).
06121824 h
January to April, November, December6.00 – 21.00 h
May4.00 – 24.00 h
June to October0.00 – 24.00 h
Months missing from the table fall within the closed season. The hours in November and December on trout and grayling waters relate to the exception for fishing huchen (§ 13, para. 4 of the Act); check in the fishing regulations what may be caught at that time. On border waters the hours in the permit or the fishing regulations apply (§ 11, para. 2 of the Decree). The Act regulates night fishing in two wordings that seem to contradict each other at first sight, so always ask about it in the fishing regulations of the district or the fishing guard.
2pcsGreen groupeel, carp, burbot, zander, pike, tench, barbel, lake brown trout, brown trout, grayling (combined)
4pcsYellow grouprainbow trout, brook trout, common nase, vimba bream; added to the green or blue group (at most 4 fish in total)
5kgOther speciesfor example crucian carp, breams, dace and chub (combined); invasive species are not counted
The blue and green groups cannot be combined. The limit applies per day, also when fishing in several districts, and once it is reached, fishing for that day ends. The species groups follow the SRZ interpretation of January 2026, not the text of the section directly. The district user may set a lower limit in the permit, in which case the stricter one applies.
Protection periods by species§ 10 of the Decree
During this period the species must not be caught, even if the water type otherwise allows fishing at that time. It applies independently of the closed season for all fish.
1 Jan – 15 Mar
burbot
1 Jan – 31 May
grayling, spirlin, northern pike
1 Jan – 15 Jun
wels catfish, zander (pikeperch), Volga pikeperch
1 Jan – 31 Oct
huchen (in border waters 1 Jan – 31 Aug)
15 Mar – 31 May
common carp in carp waters (does not apply 1 – 31 May during competitions, nor on other water bodies); asp, chub, dace, ide, sterlet, Siberian sturgeon, tench, barbel, vimba bream, zope, white-eye bream, common bream, common nase
1 Sep – 15 Apr
brown trout, brown trout (lake form)
1 Sep – 28 Feb
peled
Some species are protected all year round (for example zingel and streber, lampreys, gudgeons, spined loaches, maraena whitefish, Carpathian barbel, sabre carp) and fishing for them is always prohibited. The full list of species is in the guide The fishing law, rule by rule.
Minimum sizes§ 12 of the Decree
The shortest length from which you may keep a fish. The district user may raise the size, so look for the valid value in the permit and the fishing regulations.
Total length is measured from the front of the head to the end of the longest ray of the tail fin (§ 12, para. 4). No minimum size applies, for example, to sunbleak, Prussian carp, European perch, roach, stone loach and invasive species.
Before and after fishing
Carry your fishing license and permit while fishing and show them when checked (§ 12 of the Act). Check that they are valid.
Before you start fishing, write down the date and the district number (no. 1-0151-1-1); after fishing, write down the number and weight of your catch (§ 14(d) of the Act). Fishing without a record is an offense.
Prohibited fishing methods, night fishing, competitions and other rules are covered in the guide The fishing law, rule by rule.
As of 6 Nov 2026: Act no. 216/2018 Coll. on fisheries (wording effective 1 Jan 2022) and Decree no. 381/2018 Coll. (wording effective 1 Jan 2019); we found no newer wording. The law may change; you can find the current wording on Slov-Lex (Act) and Slov-Lex (Decree).
Who manages fishing district Gidra č. 1b
The manager, the user and the organization that issues permits
The line shows the course of the fishing district according to the "Rybárske revíry" data 2026. Verify access points and exact boundaries on site.
39
Fishing spots index
Moderately varied stream
How many different habitats the stream offers: bends, alternating currents, tributary mouths and cover along the bank. A higher number means more places where fish hold, not more fish.
Meanders and bendssinuosity 1.0510
The stream is rather straight or regulated; there are fewer pools in the bends.
Alternating runs and slack watergradient 6.3 ‰84
The gradient changes along the length: runs alternate with calm stretches and pools.
Shade and cover along the bankSunny, up to 10%25
There are few trees and bushes by the water, so there is less cover under the bank.
Spots by the water, tributary mouths and gradient
Where you can reach the water, where tributaries join and where there is danger
Spots by the water
Campsites and rest placesCampsites and rest places · picnic site
1.3 km
Spots within 3 km of the watercourse are shown.
Elevation profile of the watercourse
Elevation profileHow the altitude of the watercourse changes downstream. It is calculated from a digital relief model (tens of metres), not from a water-level measurement, so it is approximate, especially for narrow streams.
Brisk watercourseA foothill river with a gravel bottom and a fast current. Grayling and trout already thrive here.
Elevation profile of the fishing district downstream: from 212 to 177 m a.s.l. over 5.5 km.Downstream, from the upper end of the fishing district (left) to the lower end
Highest point
212 m a.s.l.
Lowest point
174 m a.s.l.
FallFallThe difference in altitude between the upper and lower end of the fishing district in metres. The greater the fall over a shorter length, the faster the water.
38 m
SlopeWatercourse gradientFall per kilometre in per mille (‰, metres per kilometre). Up to 2 ‰ is a slow lowland river, 5 to 10 ‰ a foothill river (grayling, trout), above 10 ‰ a fast stream.
6.9 ‰
SinuositySinuosityThe length of the watercourse divided by the straight-line distance between its ends. 1.0 is a straight watercourse; above 1.3 it meanders strongly. Meanders create pools under the banks and shallows in the reaches between.
1.05
Bed and bedrock according to maps
What the bed and banks are made of: rock, sediments and their effect on the water
Bed and bedrock
Bottom and bedrock (ŠGÚDŠ)The bedrock under the water according to the hydrogeological map of Slovakia at 1 : 50,000 (ŠGÚDŠ). It tells whether the surroundings are gravelly, sandy, clayey, muddy or rocky.
Clays and loams
After rain the water quickly turns turbid and fish hunt more by smell.
Gravels 33%
Clays and loams 67%
Springs and outflows
0none within 1 km
According to the geological map: fluviálne sedimenty: litofaciálne nečlenené nivné hliny, alebo piesčité až štrkovité hliny dolinných nív a nív horských potokov, holocén
The fishing district description states the bottom: bedrock, stony; the geological map shows something different, and the district description is more precise.
The map shows the bedrock geology, not the exact bottom at the spot. The actual bottom material may differ, especially where sediment has been deposited.
Terrain in 3D
Loading the 3D terrain model…
Fish and catches
Which fish live here, what has been caught here, what is stocked, which species the water suits and what the fish eatGame species9Dnes najlepšiePlotica červenooká
We record 1 game fish species in fishing district Gidra č. 1b.Of these, 1 species is in the stocking plan.
Suitability of the water for carp, trout and grayling species based on its properties
Water suitability for the fishing district type
Water suitability for the district typeIndex 0 to 100: how well the properties of the water match the needs of trout, grayling or carp, depending on the district type. It is not a bite forecast or a statement about which fish live there.
Water of average suitability for carp and cyprinids
The water is in the bottom 21% of 897 carp fishing districts with data.
Best fit: water acidity (pH)
Most missing: stream zone
Reliability medium: we used 5 water data points; the rest are missing and are not part of the assessment.
Stream zoneLevel of evidence: Partly supported
gradient 6.9 ‰, 193 m a.s.l. → barbel zone
Based on gradient and elevation, the stream lies in an area that corresponds to the barbel zone. This is not a natural zone for carp and cyprinids; the fish are here more thanks to stocking and local conditions.
What we know about it
European streams are divided from source to mouth into zones with typical fish: trout, grayling, barbel and lowland; they are determined mainly by gradient and stream size (Huet 1959), and the zones can also be used to assess the condition of streams (Aarts and Nienhuis 2003). We estimate the zone from the gradient of the fishing district's line and its elevation; it is a simplification without stream width. A match between the zone and the fishing district type adds +1 to quality, a clear mismatch −1.
Sources: Huet 1959; Aarts and Nienhuis 2003
42
Water hardnessLevel of evidence: Hypothesis
≈ 16.0 °dH (2.9 mmol/l of calcium and magnesium), ŠGÚDŠ atlas
Harder water with enough calcium and magnesium is more productive, has a larger food supply and buffers acidity swings better.
What we know about it
Water with calcium and magnesium is more productive and buffers acidity swings better: trout production was higher in calcareous hard waters (Almodóvar et al. 2006), and an index based on dissolved solids and depth predicts fish yield from lakes (Ryder et al. 1974). In Irish streams, however, geology did not change trout density (Lehane et al. 2004), and Downing et al. (1990) showed that production is related rather to primary production. Hence only ±1 point. Hardness comes from the ŠGÚDŠ atlas, not from a measurement in the fishing district; it replaces the separately assessed bedrock of the basin.
Sources: Almodóvar et al. 2006; Lehane et al. 2004; Ryder et al. 1974
96
Water acidity (pH)Level of evidence: Partly supported
pH 7.8, ŠGÚDŠ atlas
The pH is within the range in which fish commonly thrive.
What we know about it
Below about pH 6 fish suffer, and trout and grayling are more sensitive than cyprinids (Alabaster and Lloyd 1982); in acidic soft water, aluminium is released from the soil and damages gills (Gensemer and Playle 1999). The pH from the atlas is a model estimate, so the reduction is only −1 or −2, and only where we have no pH measurement (which is assessed by a separate factor).
Sources: Alabaster and Lloyd 1982; Gensemer and Playle 1999
100
MineralizationLevel of evidence: Hypothesis
≈ 471 mg/l, ŠGÚDŠ atlas
Medium mineralisation corresponds to productive streams and reservoirs.
What we know about it
Dissolved solids (mineralisation) are related to the fertility of the water, which is why Ryder used them to estimate fish production in lakes (Ryder 1965, Ryder et al. 1974). Downing et al. (1990) showed, however, that primary production is a better predictor of production. It does not enter the score, only the suitability index.
Sources: Ryder 1965; Ryder et al. 1974; Downing et al. 1990
98
Metals in sedimentLevel of evidence: Partly supported
0 elements among the highest 10 % in Slovakia (ŠGÚDŠ atlas 1999)
None of the toxic elements in river sediment is among the highest values. In hard water metals are less toxic, because calcium competes for sites on the gills.
What we know about it
The toxicity of metals to fish decreases with water hardness, because calcium competes with the metal for sites on the gills (Pagenkopf 1983). The ŠGÚDŠ atlas gives only the rank among streams, not a concentration comparable with a limit (MacDonald et al. 2000). In hard water we therefore rate metals more leniently, in soft water more strictly.
Sources: Pagenkopf 1983; Gensemer and Playle 1999; MacDonald et al. 2000
100
How this water would suit each type
Trout77
Grayling88
Carp73
The same water data evaluated against the requirements of trout, grayling and carp. The fishing district is registered as a carp district; its type is highlighted.
The index 0 to 100 compares the properties of the water with the requirements of the species (60 is the neutral value, 100 the ideal). The verbal rating comes from comparison with other fishing districts of the same type, because most Slovak waters have good values for their species. The index does not affect whether fish really occur in the fishing district (that is decided by stocking and the manager). Hardness, pH and mineralisation from the atlases are historical and model estimates. Only a small part of this feeds into the conditions score and fishing district quality (hardness ±1, atlas acidity −2 to 0, stream zone match ±1 to quality).
Fish food: aquatic insects
What fish eat in this water and how to choose a bait or fly
Aquatic insects
Aquatic insect swarming (iNaturalist)How many observations of mayflies, caddisflies and stoneflies people nearby recorded this month compared with the annual average. For fly anglers it hints at insect hatches.
Few insectsNovember: 0.0× the average month
Jan
Feb
Mar
Apr
May
June
July
Aug
Sep
Oct
Nov
Dec
Mayflies0Mayflies: dry fly on the surface, especially at dusk.
Caddisflies0Caddisflies: in the evening and at night by the bank; a nymph and a wet fly also work.
Stoneflies0Stoneflies: clean, cold streams, often already at the end of winter and in early spring.
0.0× the average month, 0 of 67 observations in the year, iNaturalist.
The observations are added by people from the surrounding area; they are not measurements at the water. They show when aquatic insects usually appear and are useful mainly for fly fishing.
Water now
Water level and flow, water temperature, ice on the surface, surface area, clarity, bloom and weed growth from satelliteTeplota vody4,3 °CWater levelWater level steady
Surface area, water clarity, algal bloom and ice at fishing district Gidra č. 1b are tracked from Sentinel satellites.The water level for fishing district Gidra č. 1b is measured by an SHMÚ station.Water temperature is measured by an SHMÚ station.
Water level, water temperature and flow at fishing district Gidra č. 1b
SHMÚ measurements, water temperature estimate and modelled flow
Water level
Water levelThe water level at the nearest SHMÚ gauge in centimetres above the gauge zero. It is the water level at the station, not the depth of the water at the fishing district.
Píla – Gidra · level stable
The water level is stable.Water level trendSlightly rising water washes food out of the banks and activates fish, which move into slacks and behind obstacles. Rapid rising brings turbidity and fish do not bite; falling water after a flood often dampens bites. A stable water level is usually pleasant for fishing, and fish keep settled holding places.
Water level at the gauge, last days (cm)Water level trend: from 10 Nov 21:45 to 11 Nov 21:45. Latest 11 cm, lowest 11, highest 13 cm.
The level is measured at an SHMÚ gauge; it is not the depth of the water in the fishing district. The coloured lines are flood-activity degreesFlood activity degreesSHMÚ declares three degrees for water gauges: degree 1 vigilance, degree 2 alert, degree 3 danger. At a higher degree fishing is dangerous..
Water temperature
Water temperatureFish are cold-blooded and water temperature governs their digestion. Below 8 °C metabolism slows down, activity peaks at 15–22 °C, above 25 °C oxygen drops.
0815222530°C
Cold water. The fish's metabolism is slowed. Fine baits and a minimum of feed help.
Water temperature, last days (°C)Water temperature trend: from 10 Nov 21:45 to 11 Nov 21:45. Latest 4.3 °C, lowest 3.0, highest 4.8 °C.
Below 8 °C: slowed metabolism
8–15 °C: activity rises
15–22 °C: peak feeding activity
22–25 °C: activity drops
Above 25 °C: little oxygen
Modelled flow
Modeled flowAn estimate of the amount of water in the river (m³/s) from the GloFAS model, not a measurement. The resolution is about 5 km, so on small streams it may show a larger river nearby.
Loading data…
From space: what the Copernicus satellites show
Sentinel-2 (optical) and Sentinel-1 (radar), updated roughly every 6 days
OvergrowthClean surface
IceNo ice
The watercourse is narrower than a satellite pixel (10 m). The values are therefore taken from a strip around the fishing district line and from pixels where water mixes with the bank, so they are only approximate and may also show the bank. The water surface area is not assessed for a watercourse, and estimates over the water appear in the image only where the watercourse is wider than a satellite pixel.
Surface overgrowthThe share of the fishing district's area where the satellite sees green vegetation (NDVI index above 0.3): floating and emergent plants and reeds at the bank.
0 % of areaClean surface
clean
partly
markedly
strongly
The share of the area with green vegetation (plants on and just below the surface, reeds at the bank).
Surface overgrowth trend: from 27 Aug 14:00 to 21 Oct 14:00. Latest 0%, lowest 0, highest 0%.
A strip of reeds at the banks may also be counted, so values on small areas may appear higher.
Sentinel-2, 21 Oct 2026, 99% of the area cloud-free
Ice on the surface
Ice on the surfaceThe share of the area where the satellite sees ice or snow. It cannot determine the thickness or load-bearing capacity of the ice.
0 % of areaNo ice
no ice
partly
mostly
whole
The share of the area where the satellite sees ice or snow. Over the last 20 days the highest was 0%.
The satellite cannot determine the thickness or load-bearing capacity of the ice. Never go onto the ice based on this figure.
Sentinel-2, 21 Oct 2026, 99% of the area cloud-free
Data have been stored since 27 Aug 2026 (14 periods of 5 days); the charts show how they develop. Download history (CSV)
Estimates from satellite images with a resolution of 10 to 20 m, not a measurement in the water. They are affected by clouds, shadows, wind and banks. Do not use them to decide about swimming or going onto the ice. Data: Contains modified Copernicus Sentinel data 2026, ESA, Copernicus Data Space Ecosystem. The procedure is described in the Methodology.
Water quality and cleanliness
Oxygen, pH and hardness, nutrients, pollution, wastewater treatment plants, landfills and contaminated sites nearby, groundwater
Measurements and registers on water quality around fishing district Gidra č. 1b.
–
Water quality index
Little data
Five pillars from measurements and registers. A pillar without data is not counted in the index, so check the data reliability too.
Oxygenno data–
We have no measurement or register record for this pillar at this district.
Water pollutionno data–
We have no measurement or register record for this pillar at this district.
Nutrients and bloomno data–
We have no measurement or register record for this pillar at this district.
Pollution sources nearbyno data–
We have no measurement or register record for this pillar at this district.
Acidity and hardnessWater hardness: ≈ 16.0 °dH, ŠGÚDŠ atlas100
Harder water is more productive, has more food and buffers acidity swings better.
Oxygen has a weight of 30%, water pollution 25%, nutrients and bloom 20%, sources nearby 15%, acidity and hardness 10%. Detailed measurements are in the cards below.
What water quality means for fish and fishing
Summary: water and oxygen, pollution and life at the water, and how much they shift the conditions score
What follows from this
Public sources in the conditions scoreData on oxygen, nutrients, reservoir depth, watercourse size, bottom, fish species and insect swarming slightly adjust the "Fishing conditions" score. Each adjustment is shown separately in the score breakdown.
Public data about this water hardly change the activity score.
Biggest boost: Water hardness +1
We assessed 17 factors; 2 of them change the score. The adjustments range from −14 to +12 points so that they do not outweigh the weather and water temperature. They are counted in the score, in the ranking and in the filters.
Water and oxygen+1
Water hardnessLevel of evidence: Hypothesis
≈ 16.0 °dH, ŠGÚDŠ atlas
Harder water is more productive, has more food and buffers acidity swings better.
What we know about it
Water with calcium and magnesium is more productive and buffers acidity swings better: trout production was higher in calcareous hard waters (Almodóvar et al. 2006), and an index based on dissolved solids and depth predicts fish yield from lakes (Ryder et al. 1974). In Irish streams, however, geology did not change trout density (Lehane et al. 2004), and Downing et al. (1990) showed that production is related rather to primary production. Hence only ±1 point. Hardness comes from the ŠGÚDŠ atlas, not from a measurement in the fishing district; it replaces the separately assessed bedrock of the basin.
Sources: Almodóvar et al. 2006; Lehane et al. 2004; Ryder et al. 1974
+1
Life by the water0
Aquatic insect hatchesLevel of evidence: Anglers' practice
0.0× the average month, 0 of 67 observations in the year, iNaturalist
Aquatic insects are scarce this month; food near the bottom matters more.
What we know about it
Anglers fish "by the insects" (dry and wet fly). A measured relationship between catches and insect hatches is not documented in our sources.
0
Do not change the score
Data for these factors is missing or within the normal range:
Dissolved oxygen
Nutrients in the water
Water acidity (pH)
Water acidity from the atlas
Ammonium ions in water
Water temperature for local species
Surface water (SHMÚ)
Nitrogen in groundwater
Harmful substances in groundwater
Iron in groundwater
Chlorides in groundwater
Wastewater treatment plants
Watercourse size
Bottom by geology
Invasive species nearby
The rules are indicative and based on fishing practice and scientific studies; for each factor you can see how well it is supported. Weather, air pressure and water temperature affect the score more than this data does.
Water chemistry, sediments and contaminated sites nearby
pH and hardness, trace elements in water and sediment, landfills and contaminated sites, boreholes with analyses (ŠGÚDŠ)
Water according to the atlas
pH 7.8modelled estimate
water type Ca–HCO₃–SO₄
Mineralisation 471 mg/l, hard water (16.0 °dH). Interpolation of measurements from the Geochemical Atlas of Slovakia, not a measurement in the stream.
Elements in river sediment
0 from 15elements in the top 10 %
highest: Copper 39.0 mg/kg
Position of the highest-ranked element among the sample points on streams in Slovakia: percentile 83. Interpolation of the Geochemical Atlas of river sediments.
up to 50 %
50–75
75–90
90–99
above 99
Trace elements in the stream water
1 from 9indicators in the top 5 %
highest: Copper 24.6 μg/l
Position of the highest measured value in the distribution of all surface water samples in Slovakia: percentile 99 (na V od RD, pod mostom).
up to 50 %
50–75
75–90
90–99
above 99
Boreholes and groundwater analyses
415boreholes within 3 km
274 water analyses nearby
Of these, 378 have an archive report from Geofond. The boreholes are hydrogeological, geological, engineering-geological and other.
Environmental burdens and landfills
8sites within 3 km
3 environmental burdens, 5 landfills
Nearest burden: PK (003) / Častá – Pri Pajdle – skládka s OP, 70 m from the water. Proximity does not mean that substances leak from the site into the water.
The chemistry of water and sediments is a model estimate from interpolated maps of the Geochemical Atlas of Slovakia, not current monitoring or a measurement in the stream. The proximity of a contaminated site or landfill does not mean that substances from it leak into the water. The locations of the objects are on the map in the Geology and geophysics section.
Groundwater
Stations nearby and measured values
Groundwater nearby
Groundwater nearby (SHMÚ)Measured groundwater values from stations within 10 km of the fishing district (nitrates, harmful substances, ammonium, iron, chlorides) and the SHMÚ yearbooks.
Groundwater within 10 km (2 stations)
Dolany – Tri StokyPezinok district · spring · 5.1 km from the fishing district
no exceedance in 2025
2017 to 2025
In the yearbooks 2017 to 2025 no exceedance of the standard is recorded at the station.
Measured values, year 2025, sampling 25 Jun 2025
Nitrates24.1 mg/l
Ammonium< 0.01 mg/l
Nitrites< 0.01 mg/l
Iron< 0.002 mg/l
Chlorides1.7 mg/l
Aluminium10% of the standard
Horne Oresany – Nove DomyTrnava district · spring · 8.9 km from the fishing district
no exceedance in 2025
2017 to 2025
In the yearbooks 2017 to 2025 no exceedance of the standard is recorded at the station.
Measured values, year 2025, sampling 10 Jun 2025
Nitrates10.1 mg/l
Ammonium< 0.01 mg/l
Nitrites< 0.01 mg/l
Iron< 0.002 mg/l
Chlorides1.9 mg/l
Aluminium65% of the standard
substances from human activity
natural substances only
no exceedance recorded
Groundwater reaches streams as base flow, so the connection to the stream at the fishing district is only indirect. Natural substances (iron, manganese, sulfates, conductivity) are not counted in the yearbook-based assessment.
The data comes from the SHMÚ yearbooks (groundwater 2017 to 2025).
Groundwater: measured values
Groundwater nearby (SHMÚ)Measured groundwater values from stations within 10 km of the fishing district (nitrates, harmful substances, ammonium, iron, chlorides) and the SHMÚ yearbooks.
A typical value from 2 groundwater stations within 10 km of the fishing district (nearest 5.1 km), measured in 2025. Closer stations carry more weight. This is groundwater near the district, not a measurement in the watercourse itself. The standard is the limit that SHMÚ gives for the indicator (for drinking water); a value equal to the standard counts as an exceedance, as it does at SHMÚ. The label "somewhere above the standard" means that the typical value is below the standard but at least one station exceeds it; which one is shown on the tile. Fish are more sensitive to some substances than people are.
Ammonium
< 0.01mg/l
not detected
Below the limit of quantification (0.01 mg/l), standard 0.5 mg/l. 2 stations.
Nitrites
< 0.01mg/l
not detected
Below the limit of quantification (0.01 mg/l), standard 0.5 mg/l. 2 stations.
Nitrates
24.1mg/l
below the standard
Standard 50 mg/l. Range 10.1 to 24.1 mg/l, 2 stations.
Oxygen
9.3mg/l
enough oxygen
Mark on the dial: 9 mg/l, the guideline for salmonid waters. Range 5.23 to 9.3 mg/l, 2 stations.
Water temperature
9.5°C
moderate
Range 9.3 to 9.5 °C, 2 stations.
pH
7.46
suitable for fish
Range 7.34 to 7.46, 2 stations.
Water hardness
3.09mmol/l
hard
Range 3.09 to 3.64 mmol/l, 2 stations.
Iron
< 0.002mg/l
not detected
Below the limit of quantification (0.002 mg/l), standard 0.2 mg/l. 2 stations.
Manganese
< 0.001mg/l
not detected
Below the limit of quantification (0.001 mg/l), standard 0.05 mg/l. 2 stations.
Chlorides
1.7mg/l
far below the standard
Standard 250 mg/l. Range 1.7 to 1.9 mg/l, 2 stations.
Sulphates
39.7mg/l
far below the standard
Standard 250 mg/l. Range 39.7 to 87.5 mg/l, 2 stations.
Conductivity
54.7mS/m
below the standard
Standard 125 mS/m. Range 54.7 to 63.2 mS/m, 2 stations.
Metals and metalloids
10% of standard
below the standard
Highest: Aluminium 0.13 mg/l (65% of the standard, 8.9 km from the fishing district). 2 stations.
How it affects fish and the water
Ammonium
Ammonium ions are not very toxic in themselves, but depending on pH and temperature part of them turns into ammonia (NH₃), which damages the gills and stresses fish. The higher the pH and temperature, the more ammonia there is (Emerson et al. 1975). The repealed Directive 2006/44/EC gave a guideline of at most 0.04 mg/l of ammonium for salmonid waters and 0.2 mg/l for cyprinid waters.
Nitrites
Nitrites are toxic to fish: they pass through the gills into the blood and turn hemoglobin into methemoglobin, which does not carry oxygen, so fish "suffocate" even in oxygenated water. Salmonids are the most sensitive; chlorides in the water reduce the toxicity (Lewis and Morris 1986). Directive 2006/44/EC gave a guideline of 0.01 mg/l for salmonid waters.
Nitrates
Nitrates do not harm adult fish immediately, but they feed algae and plants and so contribute to over-fertilization and nighttime oxygen crashes. For sensitive aquatic animals (salmonids, amphibians, some invertebrates) Camargo et al. (2005) recommend keeping nitrates below 2 mg of nitrogen per liter, which is about 9 mg/l of nitrates.
Oxygen
Fish, especially salmonids, need a lot of oxygen. Directive 2006/44/EC gave a guideline of 9 mg/l for salmonid waters (in at least half of the measurements) and never less than 7 mg/l. Groundwater from deeper layers often has less of it; in the stream it is re-oxygenated only after it emerges.
Water temperature
Groundwater has an almost constant temperature throughout the year. Inflow from springs can therefore cool a stream in summer and warm it in winter, and such sections often serve as refuges for cold-water fish (Hayashi and Rosenberry 2002).
pH
Fish tolerate a pH of roughly 6 to 9 (Directive 2006/44/EC). Outside this range the gills are damaged and the toxicity of ammonia and metals changes.
Water hardness
Harder water (more calcium and magnesium) is better for fish: calcium protects the gills and reduces the toxicity of metals such as copper and zinc (Pagenkopf 1983), and keeps the pH stable. Soft water is more sensitive to metals and to acidification.
Iron
Iron is dissolved in groundwater at depth. When the water reaches the air, it oxidizes and precipitates as brown flocs that clog gills, cover gravel with eggs and invertebrates, and destroy shelters (Vuori 1995).
Manganese
Manganese is natural in deeper groundwater. For fish it tends to matter less than iron; the standard applies mainly because of the taste and color of drinking water.
Chlorides
Chlorides come from road salt, fertilizers and waste. The US EPA (1988) set 230 mg/l for long-term protection of aquatic life and 860 mg/l for short-term.
Sulphates
Sulfates are common in groundwater; they come from rocks (for example gypsum), fertilizers and mines. Together with chlorides they raise the mineralization of the water; the standard of 250 mg/l is set for drinking water.
Conductivity
Conductivity shows the total amount of dissolved salts. A higher value in groundwater is often natural (limestone, gypsum), but a sharp increase in a stream points to an inflow of salts from roads, mines or waste.
Metals and metalloids
Copper, zinc, nickel, cadmium and mercury are toxic to fish even at low concentrations, more so in soft water than in hard water (Pagenkopf 1983). The groundwater standard is set for drinking water, not for fish.
Sources
Camargo, J. A., Alonso, Á., Salamanca, A. (2005): Nitrate toxicity to aquatic animals: a review with new data for freshwater invertebrates. Chemosphere 58, 1255–1267.
Lewis, W. M., Morris, D. P. (1986): Toxicity of nitrite to fish: a review. Transactions of the American Fisheries Society 115, 183–195.
Emerson, K., Russo, R. C., Lund, R. E., Thurston, R. V. (1975): Aqueous ammonia equilibrium calculations: effect of pH and temperature. Journal of the Fisheries Research Board of Canada 32, 2379–2383.
Directive 2006/44/EC on the quality of fresh waters needing protection or improvement in order to support fish life (repealed in 2013; we give its values here only as an expert guideline).
Vuori, K.-M. (1995): Direct and indirect effects of iron on river ecosystems. Annales Zoologici Fennici 32, 317–329.
Pagenkopf, G. K. (1983): Gill surface interaction model for trace-metal toxicity to fishes: role of complexation, pH, and water hardness. Environmental Science & Technology 17, 342–347.
U.S. EPA (1988): Ambient Water Quality Criteria for Chloride. EPA 440/5-88-001.
Hayashi, M., Rosenberry, D. O. (2002): Effects of ground water exchange on the hydrology and ecology of surface water. Ground Water 40, 309–316.
About the district and the watercourse
Location and length of the district, character of the watercourse, river basin, the organization's description and historical satellite imagesRegionTrnava Region77
Fishing district Gidra č. 1b has the number 1-0151-1-1.The reliability of data about the district is 77 out of 100.
Fishing district number1-0151-1-1
Location, character and river basin of fishing district Gidra č. 1b
Where the district lies, what type of water it is, what its river basin is and what the organization writes about it
DepthDepthThe greatest depth from the fishing district description. Shallows warm up quickly and are rich in food; deep pools give shelter and a more stable temperature.0.1–0.25 m
BottomBottomThe bottom material determines which fish live here and where they find food. Fish zones can be recognized by the bottom: rocky, gravelly, sandy to muddy.stony
Watercourse lineWatercourse lineThe shape of the watercourse seen from above. In bends there is a deep scour under the outer bank and a shallow bar under the inner one; a winding stream has more shelter and changes in depth.straight
ShadingShadingThe share of the water surface in shade. Shade lowers summer water temperatures and supplies insects and shelter; a sunny section warms up faster and becomes more overgrown.0%
VegetationVegetationTree and herbaceous vegetation on the banks. Roots and branches create shelter, and leaves and twigs falling in provide food. It also determines where you can cast and where your rig gets snagged.alder, willow
Cross-channel structuresCross-channel structuresWeirs, steps and dams hold back water and stop fish from migrating. Below them a deep plunge pool with oxygenated water forms.none
What this means for anglersexplanation of the bottom, vegetation, watercourse line and other data of this fishing district
Depth: Shallow, up to 1 m
It warms up and cools down quickly. Fish are shy; a quiet approach and a delicate rig help.
Bottom: Stony bottom
Typical of fast mountain and foothill streams. There are shelters for trout and other fish among the stones, but your rig often gets snagged.
Watercourse line: Straight line
Even depth and current. Fish stay near the bank, stones, roots and at the boundary of faster and slower current.
Shade: Sunny, up to 10% shade
In summer the water warms up quickly and aquatic plants and algae thrive here. At midday fish move to deeper places.
Vegetation: Willow
Grows by the water; the roots stabilize the bank and create shelters beneath the surface. The branches hang over the water and provide shade and insects.
Vegetation: Alder
A typical tree of stream and river banks. A dense root system creates undercut banks and shelters, and the leaves decompose quickly.
Cross-channel structures: none
Fish can move freely along the watercourse; the section is more continuous.
The explanation is general and based on the fishing district description in the data and on common fishing practice. Actual conditions on site may differ; check them before you fish.
River basin and reservoir
Reservoir depth (HydroLAKES)Average depth, volume and water retention time in the reservoir from the HydroLAKES database (WWF). The depth is estimated by a model from the surrounding terrain, so it is approximate.
Watercourse from the HydroRIVERS databasematched with the fishing district, line deviation about 290 m
Catchment above the spotWatercourse size (HydroRIVERS)The catchment area above the spot, the stream order and the average flow from the HydroRIVERS database (WWF). It determines whether it is a stream, a river or a large river.
112 km²medium river
Average flow
0.42 m³/smodel value
Stream order (Strahler)
2upper course, small tributary
Channel gradient
6.9 ‰Brisk watercourse
The data come from a global database with a coarser resolution (tens of metres), so they are only approximate for small waters. Depth and volume are model averages.
Historical images
Changes in the surroundings and nature from 2017 to 2023: how the banks, vegetation and landscape around the water change. The images switch automatically; you can also browse them by hand.
2017imaged 3 Aug 20172020imaged 28 Aug 20202023imaged 28 May 2023
What is measured right at the water for this district, what is only partly supported, what is a model estimate and what is missing. The higher the number, the more you can rely on the indexes on this page.
measured
Water temperatureIt is measured by an SHMÚ station on this water.
measured
Water levelAn SHMÚ gauging station.
estimate
Weather and pressureA forecast model for the district's coordinates, not a measurement on the bank.
partly
Water chemistryQuality assessment from the nearest SHMÚ monitoring site.
partly
Fish in the districtThe district's stocking plan. Nobody has recorded a catch here yet.
partly
Rules and permitsThe act, the decree and the list of districts. Check local exceptions in your permit.
estimate
District locationThe location is approximate, based on the description of the district boundaries.
Geology and geophysics
Rocks under the water, faults and springs, radon and natural radiation, magnetic field, earthquakes, geothermal energy, mines and deposits, landslides
Rocks, faults, radon and geophysical measurements around fishing district Gidra č. 1b.
Ground under the water: geology, faults and radon
Bedrock, watercourse and springs on the map, values at the location of the water, geomagnetic activity and earthquakes. This is information about the environment; only small hypotheses marked with a confidence level (faults and rocks, geomagnetic storm) enter the score.
The bedrock map needs JavaScript to be turned on.
Geology
Geological map of Slovakia 1 : 50,000: rocks beneath the surface, from alluvial gravels and sands through clays to granites and limestones. Colors follow the ŠGÚDŠ legend; clicking the map shows a description of the rock at that spot.
For anglers: Gravel bars and rocky riffles give a clean bottom and habitat for zander, perch and barbel. Clayey and muddy ground holds food for carp and bream. Limestone and dolomite give harder water that is richer in food than granite and quartzite.
Radon risk
Radon risk of the bedrock (low, medium, high). It is based on the radioactivity of rocks and on fissures. The map shows the bedrock, not radon in water.
For anglers: Radon is a natural tracer of groundwater. Bedrock with a higher radon risk (granite, gneiss, tectonic faults) tends to be where fissure water comes to the surface. Most of Slovakia is "medium", so mainly a high risk is of interest.
low 36.7%
medium 63.0%
high 0.3%
Uranium (eU)
Equivalent uranium in surface rocks from airborne gamma spectrometry (ppm). From 4 ppm the bedrock is usually classified as having an elevated radon risk.
For anglers: A high uranium level is a sign of granite, gneiss and black shales, that is, rocks from which radon and dissolved substances get into the water. It has no direct meaning for bites, but it helps to read the geology of the area.
no data
0 – 1
1 – 2
2 – 3
3 – 4
4 – 5
5 – 7
7 – 35
Gamma radiation
Gamma radiation dose rate in air (nGy/h) from an airborne survey. It is the natural background of the bedrock, not pollution.
For anglers: Higher values are found in rocks rich in uranium, thorium and potassium (granite, gneiss, flysch with shales). It complements the uranium map; for an angler it mainly shows where the bedrock changes.
no data
0 – 20
20 – 40
40 – 60
60 – 80
80 – 100
100 – 140
140 – 180
180 – 220
220 – 999
Magnetics
Anomalies of the Earth's magnetic field (ΔT, in nT) caused by rocks with magnetic minerals, such as volcanic rocks, basalts or amphibolites.
For anglers: Fish (especially salmonids and eels) sense the magnetic field. Whether local anomalies affect their movement and bites has not been shown; it is treated as a hypothesis.
-1 217 – -1 000
-1 000 – -250
-250 – -200
-200 – -190
-190 – -180
-180 – -170
-170 – -160
-160 – -150
-150 – -140
-140 – -130
-130 – -120
-120 – -110
-110 – -100
-100 – -90
-90 – -80
-80 – -60
-60 – -40
-40 – -20
-20 – 0
0 – 10
10 – 20
20 – 30
30 – 40
40 – 50
50 – 70
70 – 100
100 – 150
150 – 200
200 – 250
250 – 300
300 – 400
400 – 500
500 – 600
600 – 700
700 – 800
800 – 900
900 – 1 000
1000 – 1 100
1100 – 1 130
Click or tap the map to find the value at that location.
Values at the water spotBedrock radon risk, uranium, thorium, potassium, gamma radiation and magnetic anomaly at a single spot by the water (marked with a dot on the map).
Radon risk of the bedrock
low
Bedrock with a low radon share.
low
medium
high
Uranium (eU)
2.9ppm
common
Typical background of the rocks.
Thorium (eTh)
8.3ppm
around the crustal average
Natural background of the rocks.
Potassium (K)
1.45%
below the crustal average
Natural background of the rocks.
Gamma radiation
56nGy/h
around the world average
Natural background of the bedrock.
Magnetic anomaly (ΔT)
1nT
above the average of the surroundings
Deviation of the magnetic field from the average of the surroundings.
below averageabove average
The values apply to a single spot (marked with a dot on the map), not as an average of the whole watercourse or river basin. Radon is a natural tracer in groundwater; the map does not include radon in water, only the bedrock risk.
Mark on the dial: the average of the upper continental crust (uranium 2.7 ppm, thorium 10.5 ppm, potassium 2.3%; Rudnick and Gao 2003) and the world average of the natural outdoor dose 59 nGy/h (UNSCEAR 2000). The needle does not swing towards “good” or “bad”; it only shows where the value lies.
Elevated uranium or radon is only information about the rock. It has no proven significance for bites; it helps to read what bedrock the water comes from.
Faults and springs
Faults and springsThe distance to the nearest tectonic fault on the geological map and the number of springs nearby. Fissure groundwater flows out along faults.
Nearest fault
up to 250 m
fault nearby
Tectonic fault on the geological map.
Springs and outflows
0
none marked
None within 1 km.
covered by younger sedimentsQuaternary (young)
Fissure groundwater flows out of the bedrock along faults and at springs. It tends to be cooler in summer and warmer in winter than the water in the stream, so according to anglers' experience fish stay near such places in extreme weather (summer and winter islands of a more suitable temperature).
However, fresh fissure water can have little oxygen. This is anglers' experience, not a phenomenon measured at this fishing district.
Faults are from the geological map at 1 : 50,000. Springs come from a hydrogeological map that covers only some regions, so zero does not mean there are no springs there.
Geology nearby: rock, water, sediments, boreholes
Geology and geochemistry around the waterRock under the water, composition of water and sediments according to the atlases, radioactivity, geothermal potential, boreholes, old mine workings, deposits, burdens, landslides and gold in sediments, from ŠGÚDŠ maps and registers.
The line is the water of the fishing district, the light band is the 3 km zone in which boreholes, mine workings and burdens were searched for. The map shows the nearest objects (at most a few dozen from each register), not all of them. The points correspond to the position in the register; area objects are marked by their centre.
Rock under the water
River alluvium50% of the water line
50% metamorphic rocks
Gravelly and sandy bottom and floodplains; the water is replenished from groundwater in the alluvium. Geological Map of Slovakia 1:50,000.
Heat underfoot
40°C at 1,000 m depth
heat flow 55 mW/m²
At a depth of 2,000 m about 75 °C (increase of 35 °C per kilometre). Atlas of Geothermal Energy of Slovakia.
Old mine workings
12objects within 3 km
mined: Cu
Nearest: Ryha (other type of object), 1.5 km from the water.
Geothermal energy
–
1 geothermal and mineral water spring within 10 km.
Deposits and ore occurrences
18records within 5 km
18 ore occurrences
Geofond registers, the metallogenetic map and the mineral resources map.
The data come from registers, maps and atlases of the State Geological Institute of Dionýz Štúr and describe the environment around the water. Proximity of a mine working or burden does not mean the water is polluted. The chemistry of water and sediments is a modelled estimate from interpolated maps of the Geochemical Atlas of Slovakia, not current monitoring or a measurement in the stream.
Detailed geology and geochemistry of the whole stream: rock under the water, water composition, elements in sediments, radiation, geothermal potential, metals, gold in sediment, mine workings, boreholes with analyses.
Geomagnetic activity
Geomagnetic activity (Kp)The planetary Kp index (0 to 9) measures the fluctuation of the Earth's magnetic field. From 5 it counts as a geomagnetic storm. The last 48 hours and a forecast for 24 hours are shown.
Kp index
2.7from 9
quiet field
Latest measurement (11 Nov 2026 19:00). The dot on the dial is the highest forecast for the next 24 hours.
48 h agonow+24 h
Highest forecast Kp in the next 24 hours: 2.3 (quiet field).
Kp (0 to 9) measures the fluctuation of the Earth's magnetic field caused by the solar wind. From 5 it counts as a geomagnetic storm. Fish, especially salmonids and eels, sense the magnetic field. That their bites depend on Kp has not been shown, though: these are anglers' observations and hypotheses.
The value is the same for the whole of Slovakia. It enters the activity score only during a strong geomagnetic storm (a hypothesis, −1 to −2 points).
Earthquakes nearby
Earthquakes nearbyTremors recorded within 150 km of the water in the last 30 days (GFZ GEOFON catalog).
Earthquakes nearby
0tremors
no tremors
Within 150 km over the last 30 days (from magnitude 0.0).
According to angling lore, fish (especially catfish and eels) react restlessly to tremors beforehand or stop biting. This is not reliably proven, and with weak tremors it is coincidence. People mostly do not notice deeper tremors from the Carpathians (for example near Komárno and Dobrá Voda) at all.
The GEOFON catalog is global; weak tremors near Slovakia may not all be in it. It is not counted in the activity score.
Wildlife, birds and plants around the water, dangerous and invasive species, what to watch out for
Wildlife, birds and plants observed around fishing district Gidra č. 1b.
Wildlife, plants and hazards around the waterWildlife and hazards by the water (GBIF)Game animals, birds, plants and hazards (bear, ticks, mosquitoes, giant hogweed) that people have recorded around the water. It is not part of the fishing conditions score and is for information only.
Species that have been observed or recorded around the water. Wildlife, plants and hazards do not enter the fishing conditions score and are for information only. The name of a species leads to its page.
They breed in standing water, so they are worst around reservoirs, oxbow lakes and floodplain forests, especially at sunset.
How to protect yourself: When fishing in the evening and at night wear long sleeves, repellent and a net. Warmth and humidity after rain speed up mosquito development.
Transmits tick-borne encephalitis and Lyme disease. It waits in tall grass and in the vegetation along banks.
How to protect yourself: From spring to autumn check yourself after fishing, use repellent and tuck long trousers into your socks. Remove a tick as soon as possible with tweezers. A vaccination against encephalitis exists.
It comes to the water to wallow and drink, mainly at dusk and at night.
How to protect yourself: A wild boar sow with piglets can be aggressive. Keep your distance, do not spend the night on a game trail and do not leave food scraps near the water.
A shy predator of the forests. It comes to the water at night and at dusk.
How to protect yourself: Attacks on people are very rare. Keep your camp tidy, do not feed wildlife and keep your dog on a leash.
Wildlife, plants and hazards: records come from observations and also reflect where observers move around; they are not density measurements or a guarantee of an encounter. They apply to the surroundings of about 35 × 55 km.
Photo credits
Mallard:Photo: This picture was realized by Richard Bartz by using a Canon EF 70-300mm f/4-5.6 IS USM…, CC BY-SA 2.5, Wikimedia Commons
Mayflies0Mayflies: dry fly on the surface, especially at dusk.
Caddisflies0Caddisflies: in the evening and at night by the bank; a nymph and a wet fly also work.
Stoneflies0Stoneflies: clean, cold streams, often already at the end of winter and in early spring.
low 36.7%
medium 63.0%
high 0.3%
no data
0 – 1
1 – 2
2 – 3
3 – 4
4 – 5
5 – 7
7 – 35
40 – 60
140 – 180
180 – 220
220 – 999
-1 217 – -1 000
-1 000 – -250
-250 – -200
-200 – -190
-190 – -180
-180 – -170
-170 – -160
-160 – -150
-150 – -140
-140 – -130
-130 – -120
-120 – -110
-110 – -100
-100 – -90
-90 – -80
-80 – -60
-60 – -40
-40 – -20
-20 – 0
0 – 10
10 – 20
20 – 30
30 – 40
40 – 50
50 – 70
70 – 100
100 – 150
150 – 200
200 – 250
250 – 300
300 – 400
400 – 500
500 – 600
600 – 700
700 – 800
800 – 900
900 – 1 000
1000 – 1 100
1100 – 1 130
Bird
Bird
Bird
Bird
Wildlife
Wildlife
Wildlife
Wildlife
Wildlife
Wildlife
Wildlife
Wildlife
Plant
Plant
Plant
Invasive plant
Invasive plant
Plant
Risk
Risk
Risk
Risk
Risk
