Fish monitoring data in Lake Kasumigaura

Study Extent

Fish and shrimp samples were taken from the southeast shore of Lake Kasumigaura (near the Dosakibana in Inashiki city) every 2 to 3 months.

Sampling

In cooperation with a local professional fisherman, we captured fish and shrimp using a large stationary net, which consists of three trap nets (70 cm in diameter, 6 m in length, 3 mm mesh size) and a leader net (80 m in length, 11 mm mesh size). The stationary net was washed out before sampling and was set for 24 h in a similar manner. The samples were identified to the lowest possible taxonomic unit and the number of individuals of each species (ind./day) was counted. The wet mass of each species (wet mass(g)/day) was also measured.

Method steps

1. Monitoring of freshwater fish using a large stationary net

18 families including 43 fish species, 3 shrimp species and 1 frog species

1. Anguillidae
   rank: family
2. Atherinidae
   rank: family
3. Bagridae
   rank: family
4. Centrarchidae
   rank: family
5. Cobitidae
   rank: family
6. Cyprinidae
   rank: family
7. Gobiidae
   rank: family
8. Hemiramphidae
   rank: family
9. Ictaluridae
   rank: family
10. Mugilidae
    rank: family
11. Osmeridae
    rank: family
12. Palaemonidae
    rank: family
13. Percichthyidae
    rank: family
14. Plecoglossidae
    rank: family
15. Ranidae
    rank: family
16. Salangidae
    rank: family
17. Siluridae
    rank: family
18. Varunidae
    rank: family

Lake Kasumigaura, Japan