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Feeding Ecology of Collichthys lucidus in the Han River Estuary, Korea  

Chung, Su-Whan (Department of Ocean Sciences, Inha University)
Kim, Byung-Gi (Department of Ocean Sciences, Inha University)
Kim, Ji-Hye (Department of Ocean Sciences, Inha University)
Kim, Min-Gyu (Department of Ocean Sciences, Inha University)
Han, Kyung-Nam (Department of Ocean Sciences, Inha University)
Publication Information
Korean Journal of Ichthyology / v.26, no.4, 2014 , pp. 303-309 More about this Journal
Abstract
Feeding ecology of Collichthys lucidus was determined by analysis of stomach contents of 926 specimens ranged from 3.5 to 18.5 cm in the Han River estuary. This fish actively fed on benthic crustaceans, mainly decapods, Palaemon carinicauda and Acetes chinensis, and they can be defined as the benthivorous predator. The percentage of empty stomachs was 23.8%. The vacuity index (VI) did not vary with the size classes, but showed significant monthly variations. Monthly variation of feeding activity appears to be related to the reproduction cycle of the fish, and to the temporal abundance of the prey organisms. Collichthys lucidus in Han River estuary fed on a wide array of prey items and could be considered as a non-selective predator.
Keywords
Collichthys lucidus; diet composition; Han River estuary; feeding ecology;
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Times Cited By KSCI : 4  (Citation Analysis)
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