Abstract:Based on the samples collected during nine bottom trawl surveys in Laizhou Bay conducted from May 2011 to April 2012, 20 fish species and 4 854 stomach samples were analyzed. Five kinds of feeding habits were found among the fish assemblages in the Laizhou Bay, including zooplankivores, benthivores, piscivores, omnivores and generalist predators. Benthivory is an important feeding habit in fish assemblage in each month, and the benthic prey such as gammarid amphipods and bivalvia, was the primary prey in the food relationship of Laizhou Bay. The composition of feeding type in fish assemblage of late autumn and early spring was simple, and benthivores were the major component, then as water temperature increased, the composition became complicated. The results showed that the food structure of fish assemblage in Laizhou Bay favored growth and survival of the released species. In order to ensure the effect of enhancement and release, it is suggested that the food relationship and prey condition in the waters around the released place should be track-surveyed, and the suitable place and time for release should be selected.
