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Loss of Prey Body Contents during Feeding by an Aquatic Predator
Author(s) -
Dagg Michael J.
Publication year - 1974
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1934430
Subject(s) - predation , predator , assimilation (phonology) , ecology , biology , ingestion , environmental science , philosophy , linguistics , biochemistry
During the feeding process of the grasping and chewing amphipod Calliopius laeviusculus, a significant portion of the prey body contents is lost to the surrounding water. The amount of material lost decreases as the size of the predator increases. If this loss is ignored in ingestion studies, the result is a substantial overestimation of assimilation and assimilation efficiency, as determined by the gravimetric method.