Open Access
Table 1
Noble crayfish populations, location, size of the water system (ha), drainage basins code with an asterisk (*) if within protection area (Ruokonen et al., 2023;), number of samples, historical information, and findings from previous genetic analyses.
| Noble crayfish populations | Location (lat; long) | Size (ha) | Drainage basin code Number of samples | Historical information | Findings from previous analyses | |
|---|---|---|---|---|---|---|
| Established populations, located above 62 ᴼN | ||||||
| 1. River Sirkkakoski | 66.683164; 24.406271 | – | 67* | 30 | – | No difference with Swedish population (Alaranta et al., 2006) |
| 2. Lake Jokijärvi | 65.910623; 28.732909 | 638 | 61* | 69 | – | – |
| 3. River Perhonjoki | 63.838474; 23.248587 | >1 | 49* | 30 | Established (Ignatius, 1885 according to Westman, 1991), crayfish plague 1962, 1977, 1992 (Mannonen et al., 2006) | No difference with Perhonjoki, Koivujärvi and Pitkäjoki (Gross et al., 2013) |
| 4. Lake Pyhäjärvi | 63.684715; 26.001706 | 12 179 | 54* | 30 | Translocations within lake according to local fishermen, crayfish plague 1956 and 1998 (Mannonen et al., 2006) | |
| 5. River Pajakkajoki | 64.123641; 29.481611 | – | 59* | 30 | Used as stocking resource, crayfish plague after sampling (2009) (Makkonen et al., 2015) | − |
| 6. Lake Koivujärvi | 63.485313; 26.270324 | 2 607 | 14 | 30 | Used as stocking resource according to local fishermen | No difference with Perhonjoki, Koivujärvi and Pitkäjoki (Gross et al., 2013) |
| 7. Lake Viitajärvi | 63.032237; 26.800604 | 87 | 14 | 30 | – | – |
| 8. Lake Saarinen | 63.053015; 26.806283 | 150 | 14 | 30 | – | – |
| 9. Lake Horonjärvi | 62.866147; 26.286328 | 369 | 14 | 40 | – | – |
| 10. Lake Rytky | 62.856242; 27.421818 | 156 | 04 | 30 | – | – |
| 11. River Siilinjoki | 63.077664; 27.676949 | – | 04 | 30 | – | – |
| 12. Lake Mäntyjärvi | 63.074632; 28.707261 | 52 | 04 | 30 | Crayfish plague after sampling (2009) (Makkonen et al., 2015) | − |
| 13. River Pisankoski | 63.186702; 28.414235 | – | 04 | 22 | Observed mortality 1972 (Mannonen et al., 2006) | − |
| 14. Pond Pohjanlampi | 62.970829; 27.871599 | 5 | 04 | 22 | – | – |
| 15. Pond Valkeinen | 62.841045; 27.588294 | 10 | 04 | 30 | – | – |
| 16. River Kasijoki | 62.838145; 28.133751 | – | 04 | 35 | – | – |
| 17. Lake Iso-Lauas | 62.777193; 27.381992 | 611 | 14 | 30 | Established (Oksman and Lindqvist, 1977), used heavily as stocking resource according to local fishermen (Korhonen, 2010), crayfish plague 1996, 2000 (Mannonen et al., 2006) | – |
| 18. Lake Valkeinen | 62.841358; 27.586620 | 18 | 04 | 30 | – | – |
| 19. Lake Ilvesjärvi | 62.250763; 24.789097 | 26 | 04 | 30 | – | |
| 20. Lake Pyhtäänjärvi | 62.313978; 26.024866 | 397 | 14 | 30 | – | |
| 21. Lake Ala-Siili | 62.303050; 27.027540 | 210 | 14 | 30 | Crayfish plague 1950 (Mannonen et al., 2006) | – |
| 22. Lake Suuri-Pölläkkä | 62.278385; 28.915644 | 119 | 04 | 30 | – | – |
| 23. Lake Ylä-Kintaus | 62.327056; 25.365686 | 572 | 14 | 30 | Farmed population, crayfish plague 1964-1965, 1999 (Mannonen et al., 2006) | − |
| 24. Lake Ala-Kintaus | 62.292516; 25.356388 | 722 | 14 | 30 | Farmed population, used as stocking resource, crayfish plague 1964 (Mannonen et al., 2006) | − |
| 25. Lake Riihijärvi | 62.02185; 26.056294 | 89 | 14 | 25 | – | – |
| 26. River Pitkäjoki | 62.119420; 26.047111 | – | 14 | 26 | – | No difference with Perhonjoki, Koivujärvi and Pitkäjoki (Gross et al., 2013) |
| 27. Lake Ahvenlampi | 62.068805; 30.364909 | 29 | 02* | 30 | – | Origin or donor autochthonous (Alaranta et al., 2006) |
| 28. Lake Suuri-Heinäjärvi | 62.091913; 30.329275 | 351 | 02* | 30 | Established/re-established according to local fishermen, observed mortality 1995 (Mannonen et al., 2006) | − |
| 29. Lake Ylä-Luotojärvi | 62.025555; 29.244862 | 586 | 04 | 30 | Used as a donor according to local fisherman | − |
| Populations within natural distribution area below 62ᴼN latitude | ||||||
| 30. Lake Kitere | 61.527360; 27.273874 | 44 | 04 | 30 | Established | − |
| 31. Lake Säiniönjärvi | 61.556562; 27.007384 | 69 | 14 | 30 | – | – |
| 32. Lake Suuri-Vahvanen | 61.683725; 27.539792 | 132 | 04 | 30 | Established, stockings | – |
| 33. Lake Ylä-Säynätjärvi | 61.663362; 27.405896 | 52 | 04 | 30 | Established, stockings | − |
| 34. Lake Hosusjärvi | 61.254510; 26.802335 | 31 | 14 | 10 | – | – |
| 35. Pond Mikkolanjärvi | 61.614456; 24.594347 | 23 | 35 | 27 | – | – |
| 36. Lake Köyliönjärvi | 61.106264; 22.347164 | 1423 | 34 | 30 | Farmed population | Origin or donor probably autochthonous (Alaranta et al., 2006) |
| 37. Lake Saimaa | 61.212337; 27.651544 | 137703 | 04 | 30 | Stockings | No difference with two Swedish population and one Estonian population (Alaranta et al., 2006) |
| 38. Lake Linkullasjön | 60.097355; 23.879507 | 60 | 82* | 30 | – | Origin or donor autochthonous (Alaranta et al., 2006), more similar with Swedish than Finnish populations (Gross et al., 2013) |
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