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Carcass feeding as a cryptic foraging mode in round goby Neogobius melanostomus
Author(s) -
Polačik M.,
Jurajda P.,
Blažek R.,
Janáč M.
Publication year - 2015
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12708
Subject(s) - neogobius , round goby , biology , foraging , zoology , body cavity , fishery , ecology , anatomy , fish <actinopterygii>
Round gobies Neogobius melanostomus were observed readily consuming soft tissue from carcasses of larger fishes under both laboratory and field conditions. Consumption normally progressed in a typical sequence, starting with soft and easily accessible tissues such as the eyes, followed by puncture of the abdominal cavity, gut consumption and then muscle consumption. Carcass feeding has not previously been seen in N. melanostomus and has potential consequences for transfer of nutrients and contaminants.