Open AccessFeeding Habit of Fish Living Around Floating Net Cages in The Koto Panjang Dam, Riau
Author(s) -
Wiwik Siti Windarti,
E. Eddiwan,
Ridwan Manda Putra,
J. S. Tumanggor
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/430/1/012030
Subject(s) - habit , fish <actinopterygii> , zoology , environmental science , fishery , biology , psychology , social psychology
Feeding habit of fish is related to the presence of food source in their habitat. As there is fish feed pellets remains present in the water around the floating net cage, the feeding habit of wild fish living around the cage may be affected by that food source. To understand the type of food consumed by the fish living around the floating net cage in the Koto Panjang Dam, a study has been conducted on December 2018. Samplings were conducted 3 times, once/2 weeks and the fish were captured using gill net and lure placed in the surface and in the 15 m depth. Stomach of the fish ere removed and the content was then analyzed and identified. There were 9 fish species present. In all fish sampled, the remains of fish feed pellets were present in the stomach and the percentage of fish pellets were as follows: 15% in the Puntius schwanefeldii; 67% in Hampala bimaculata; 25% in Tynnichtys vaillanti; 83% in P. bramoides; 23% in Macrones nigriceps; 25% in Mastacembelus unicolor ; 50% in Osphronemus goramy; 67% in Cyprinus carpio and100% in O. niloticus. High portion of fish feed pellets in the stomach of several wild fish species indicates that the wild fishes are greatly affected by the presence of fish feed pellets remains, while the presence of the pellets in the stomach of M. unicolor and M. nigriceps indicates that the remain of the pellets also affects the fish that live in 15 m depth.