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Filmed observations of filter feeding in the marine planktonic copepod Acartia clausii
Author(s) -
Rosenberg Gene G.
Publication year - 1980
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.1980.25.4.0738
Subject(s) - copepod , acartia , plankton , biology , seawater , arthropod mouthparts , oceanography , grazing , ecology , crustacean , geology
Filter feeding by Acartia clausii was studied from high‐speed motion pictures (250 frames·s −1 ) of the copepods grazing in natural seawater and in suspensions of Skeletonema costatum. Feeding was intermittent, with feeding bouts ranging in length from 90 to 1,000 ms in natural particle suspensions. During feeding, the mouthparts vibrated at about 60 Hz. Acartia also used its thoracic legs in feeding to supplement the filtering action of the maxillae.