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