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Planktonic or non‐planktonic food in young‐of‐the‐year European perch Perca fluviatilis in ponds
Author(s) -
Bláha M.,
Šetlíková I.,
Peterka J.,
Musil J.,
Policar T.
Publication year - 2014
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.12427
Subject(s) - perch , plankton , macrophyte , biology , biomass (ecology) , predation , abundance (ecology) , fishery , ecology , zooplankton , aquatic plant , fish <actinopterygii>
Higher biomass especially of some aquatic macrophyte species offered a higher density of phytophilous zoobenthos, but did not increase the proportion of non‐planktonic to planktonic prey in young‐of‐the‐year perch Perca fluviatilis . Both abundance and biomass of non‐planktonic prey dominated over planktonic prey in the pond with lower biomass of aquatic macrophytes and lower food. Survival of P. fluviatilis was lower (20%) in the pond with lower food than in the other pond (34%), however, specific growth rate (1·3% day −1 ) and final Fulton's condition factor of P. fluviatilis were similar in both ponds.