Invertebrate
Signal crayfish
- Records in GBIF
- 10
- Fishing districts near where it occurs
- 138
- Most sightings
- July
About the species Signal crayfish
About the species
A North American crayfish that is invasive. It carries crayfish plague, which destroys native crayfish.
Where to find it by the water
Rivers, streams and ponds, where it displaces native crayfish.
What this means for anglers
Never move it to another water. Rinse and dry your gear after fishing so that you do not spread crayfish plague.
When it is observed
Records by month in the areas around the fishing districts (GBIF).
- 0Jan
- 0Feb
- 0Mar
- 0Apr
- 1May
- 0June
- 4July
- 1Aug
- 2Sep
- 2Oct
- 0Nov
- 0Dec
In November the species is observed less than in the main season. Most records are from July.
The records come from people's observations and also reflect when and where observers move around. They are not a measurement of numbers or a guarantee of an encounter.
Where it was recorded
Fishing districts around which a record of this species exists. Sorted by number of records.
- Feld 7
- Prukse 7
- Kanál Malina č. 1 7
- Morava č. 3 7
- Morava č. 1 7
- Morava č. 2 7
- VN Centnúz 7
- Zohorský kanál č. 1 7
- Záhorský kanál 7
- Zohorský kanál č. 2 7
- Dunaj č. 4 – Devínske rameno 7
- Špek 7
- Bobrie jazero 7
- Jazero Čierny Feld 7
- SR Obloz 7
- Prepadlina Osmička 7
- Lábske jazero 7
- Štrkovisko Malé Axi 7
- Požiarna nádrž 7
- Rašelinisko Záhorská ves 7
- Rudava kanál 7
- Kruh 7
- Junkov Dolec 7
- Habán 7
- Strža 7
- Štelc a Výkopa 7
- Štrkovisko Gajarské 7
- Štrkovisko Suchohradské 1 7
- Štrkovisko Suchohradské 2 7
- Štrkovisko Jakubov č. 1 7
- Štrkovisko Jakubov č. 2 7
- Štrkovisko Kňaz – Malé Leváre 7
- Štrkovisko na Židovkách 7
- Štrkovisko Trojuholník 7
- Štrkovisko Záhorská Ves 7
- Štrkovisko Štvorec 7
138 fishing districts in total, 36 shown. The number next to a fishing district is the number of records around it. Show on map
More species from the group insects, crayfish and mussels
Photo credits
- Signal crayfish: Photo: Astacoides, CC BY-SA 3.0, Wikimedia Commons
- Dragonflies: Photo: Paul Balfe, CC BY 2.0, Wikimedia Commons
- Mayflies: Photo: Richard Bartz, Munich aka Makro Freak Image:MFB.jpg, CC BY-SA 2.5, Wikimedia Commons
- Caddisflies: Photo: Bruce Marlin, CC BY-SA 2.5, Wikimedia Commons
- Horseflies: Photo: Bruce Marlin, CC BY-SA 2.5, Wikimedia Commons
- Mosquitoes: Photo: Katja Schulz from Washington, D. C., USA, CC BY 2.0, Wikimedia Commons
- Castor bean tick: Photo: W.alter, CC BY-SA 4.0, Wikimedia Commons
The advice is general and does not replace the instructions of a doctor, rescuers, the site manager or the fishing regulations. Do not disturb protected species or dismantle their shelters.