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Energetics of Winter Flounder (Pseudopleuronectes americanus) Fed the Polychaete, Nereis virens, under Experimental Conditions
Author(s) -
Chesney Edward J.,
Estevez Jose Iglesias
Publication year - 1976
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1976)105<592:eowfpa>2.0.co;2
Subject(s) - winter flounder , polychaete , energetics , biology , zoology , fishery , ecology , flounder , fish <actinopterygii>
Age class I and II winter flounder, Pseudopleuronectes americanus, were fed the polychaete, Nereis virens, under experimental temperatures of 10 C and 20 C in a filtered (10 μ), temperature‐regulated seawater system for periods of 40 days. All the fish grew and there was no significant difference in growth between fish at 10 C and those at 20 C, but growth was significantly different (P < 0.05) between age classes at both temperatures. Age I fish had the higher growth efficiency and mean gross growth efficiencies based on calories were 23.7% and 20.2% for age I and II, respectively. Calculated efficiencies were lowest based on wet weight and generally increased when based on dry weight, carbon, and caloric content.