Premium
The feeding behavior of a predatory planktonic copepod, Torlanus discaudatus 1
Author(s) -
Ambler Julie W.,
Frost Bruce W.
Publication year - 1974
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.1974.19.3.0446
Subject(s) - copepod , predation , ingestion , biology , functional response , range (aeronautics) , plankton , zoology , calanus finmarchicus , ecology , crustacean , predator , biochemistry , materials science , composite material
Adult females of Tortanus discaudatus can capture nearly all of the developmental stages (nauplius III to copepodid IV) of a probable natural prey species Calanus pacificus. Tortanus appears to search at random for prey and the capture of prey to depend on tactile stimuli. The relationship between ingestion rate of Tortanus and prey (nauplius stage III or V) density is satisfactorily described by an Ivlev curve, with maximum ingestion rates falling within the range of natural prey densities.