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An experimental aquarium for observing the schooling behaviour of Antarctic krill (Euphausia superba)


Kawaguchi, S and King, R and Meijers, R and Osborn, JE and Swadling, KM and Ritz, DA and Nicol, S, An experimental aquarium for observing the schooling behaviour of Antarctic krill (Euphausia superba), Deep-Sea Research. Part 2: Topical Studies in Oceanography, 57, (7-8) pp. 683-692. ISSN 0967-0645 (2010) [Refereed Article]

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DOI: doi:10.1016/j.dsr2.2009.10.017


Schooling behaviour of Antarctic krill was induced repeatedly over a period of one year in the Australian Antarctic Division research aquarium. The details of the laboratory setup suitable for krill to school are described. Light intensity and food condition were found to affect krill swimming patterns and schooling behaviour. Krill swam in polarised groups and responded as a group to objects that produced sharp contrasts but not to less distinct objects. Schools broke up when they encountered dense phytoplankton patches, and aggregated more tightly when kept with a white featureless background. The diel nature of school formation was observed under simulated natural light conditions with stronger and tighter schools during daytime and no obvious schooling behaviour during night. These behavioural patterns are further discussed in terms of their costs and benefits of feeding and predation risk, in conjunction with the diel vertical migration behaviour of krill.

Item Details

Item Type:Refereed Article
Keywords:Antarctic krill, Schooling Behaviour, Marine crustaceans, Aquaria, Aquaculture facilities, Recirculating systems
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Wildlife and habitat management
Objective Division:Environmental Management
Objective Group:Management of Antarctic and Southern Ocean environments
Objective Field:Biodiversity in Antarctic and Southern Ocean environments
UTAS Author:Meijers, R (Mr Robert Meijers)
UTAS Author:Osborn, JE (Dr Jon Osborn)
UTAS Author:Swadling, KM (Associate Professor Kerrie Swadling)
UTAS Author:Ritz, DA (Associate Professor David Ritz)
ID Code:65693
Year Published:2010
Web of Science® Times Cited:56
Deposited By:Geography and Environmental Studies
Deposited On:2010-12-01
Last Modified:2015-02-05
Downloads:6 View Download Statistics

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