Behavior of Antarctic Krill, Euphausia superba: Chemoreception, Feeding, Schooling, and Molting

Krill do not feed by passive, continuous filtration but use area-intensive searching and various rapid feeding behaviors to exploit local high food concentrations. Chemicals alone at low concentrations, not particles, trigger feeding. Krill form dense schools that move rapidly and migrate primarily...

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Bibliographic Details
Published in:Science
Main Authors: Hamner, William M., Hamner, Peggy P., Strand, Steven W., Gilmer, Ronald W.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1983
Subjects:
Antarc*
Antarctic
Antarctic Krill
Euphausia superba
Online Access:http://dx.doi.org/10.1126/science.220.4595.433
https://www.science.org/doi/pdf/10.1126/science.220.4595.433
Description
Summary:Krill do not feed by passive, continuous filtration but use area-intensive searching and various rapid feeding behaviors to exploit local high food concentrations. Chemicals alone at low concentrations, not particles, trigger feeding. Krill form dense schools that move rapidly and migrate primarily horizontally. Abrupt disruption of a school can trigger mass molting, and molts may act as decoys.

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