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. Note that additional nets to prevent intrusion of channel catfish were used for certain data which can be filtered by eventRemarks.

Method steps

1. Monitoring of freshwater fish using a large stationary net

19 families including 45 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. Dasyatidae
   rank: family
8. Gobiidae
   rank: family
9. Hemiramphidae
   rank: family
10. Ictaluridae
    rank: family
11. Mugilidae
    rank: family
12. Osmeridae
    rank: family
13. Palaemonidae
    rank: family
14. Percichthyidae
    rank: family
15. Plecoglossidae
    rank: family
16. Ranidae
    rank: family
17. Salangidae
    rank: family
18. Siluridae
    rank: family
19. Varunidae
    rank: family

Lake Kasumigaura, Japan