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Susceptibility of Antarctic krill (Euphausia superba Dana) to ultraviolet radiation


Newman, SJ and Nicol, S and Ritz, DA and Marchant, H, Susceptibility of Antarctic krill (Euphausia superba Dana) to ultraviolet radiation , Polar Biology, 22, (1) pp. 50-55. ISSN 0722-4060 (1999) [Refereed Article]

DOI: doi:10.1007/s003000050389


We irradiated captive juvenile Euphausia superba in the laboratory with lower than spring surface levels of ultraviolet-B, ultraviolet-A and photosynthetically active radiation, in order to examine their response in terms of mortality and generalised activity. Levels of photosynthetically active radiation 3-5 times below surface irradiance caused krill to die within a week, while animals in the dark survived. Addition of ultraviolet-B typical of depths up to 15 m were found to significantly accelerate mortality and lead to a drop in activity in all experiments. A drop in activity in krill exposed to ultraviolet-A wavelengths was evident without an increase in mortality. The protein content of animals from various treatments was found not to vary.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Newman, SJ (Mr Stuart Newman)
UTAS Author:Ritz, DA (Associate Professor David Ritz)
ID Code:16395
Year Published:1999
Web of Science® Times Cited:26
Deposited By:Zoology
Deposited On:1999-08-01
Last Modified:2011-08-04

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