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Feeding by the chaetognath, Sagitta elegans, at low temperatures in Vineyard Sound, Massachusetts 1
Author(s) -
Feigenbaum David
Publication year - 1982
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1982.27.4.0699
Subject(s) - vineyard , sagitta , biology , sound (geography) , digestion (alchemy) , zoology , ecology , respiration , botany , chemistry , oceanography , horticulture , fishery , geology , chromatography , fish <actinopterygii> , otolith
Feeding rates were determined for S . elegans feeding in Vineyard Sound, Massachusetts, at a temperature of 0°C by applying a digestion time (10.2 h), obtained from laboratory observations, to an analysis of gut contents. The specific daily ration of large individuals was about 1–2% of body dry wt·d −1 , that of small chaetognaths (3.5 mm) was about 46%. Feeding rates for all but the smallest animals are similar to those predicted from respiration data; the smallest individuals consumed more than their estimated no‐growth requirements.