Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data
Antarctic krill, Euphausia superba , is a keystone species of the Antarctic ecosystem. A fishery for krill may compete with land-based predators (penguins and seals), particularly during the breeding season. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is moving...
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Online Access: | https://doi.org/10.1016/j.ecolmodel.2010.06.005 http://ecite.utas.edu.au/131163 |
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ftunivtasecite:oai:ecite.utas.edu.au:131163 2023-05-15T13:55:18+02:00 Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data Mangel, M Richerson, K Cresswell, KA Wiedenmann, JR 2010 https://doi.org/10.1016/j.ecolmodel.2010.06.005 http://ecite.utas.edu.au/131163 en eng Elsevier Science Bv http://dx.doi.org/10.1016/j.ecolmodel.2010.06.005 Mangel, M and Richerson, K and Cresswell, KA and Wiedenmann, JR, Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data, Ecological Modelling, 221, (17) pp. 2095-2101. ISSN 0304-3800 (2010) [Refereed Article] http://ecite.utas.edu.au/131163 Mathematical Sciences Applied Mathematics Biological Mathematics Refereed Article PeerReviewed 2010 ftunivtasecite https://doi.org/10.1016/j.ecolmodel.2010.06.005 2019-12-13T22:29:08Z Antarctic krill, Euphausia superba , is a keystone species of the Antarctic ecosystem. A fishery for krill may compete with land-based predators (penguins and seals), particularly during the breeding season. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is moving towards management in small scale units. The management models specify predation and fishing mortality as space and time dependent but do not yet include non-predation natural mortality. Krill are known to be highly susceptible to ultraviolet radiation (UV) but there are limited empirical data. We develop a model for krill mortality caused by UV and parameterize and assess it by comparison with experimental data. The analysis allows us to identify key parameters that should be measured in future experiments and also leads to suggestions about modification of experimental procedure. We illustrate the method for krill found in the Livingston Island area and show that (a) it is possible to estimate the component of natural mortality due to UV-induced damage and (b) that cohorts born in 1979, 1984, or 1997 have different survival in the first 5 years of life, associated with differential UV exposure. In particular, those born in 1997 may have experienced as much as 10% lower survival than those born in 1979. The method developed here allows a potentially important source of krill mortality to be incorporated into the management models and suggests key experiments and field work in the future. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Livingston Island eCite UTAS (University of Tasmania) Antarctic The Antarctic Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Ecological Modelling 221 17 2095 2101 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Mathematical Sciences Applied Mathematics Biological Mathematics |
spellingShingle |
Mathematical Sciences Applied Mathematics Biological Mathematics Mangel, M Richerson, K Cresswell, KA Wiedenmann, JR Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data |
topic_facet |
Mathematical Sciences Applied Mathematics Biological Mathematics |
description |
Antarctic krill, Euphausia superba , is a keystone species of the Antarctic ecosystem. A fishery for krill may compete with land-based predators (penguins and seals), particularly during the breeding season. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is moving towards management in small scale units. The management models specify predation and fishing mortality as space and time dependent but do not yet include non-predation natural mortality. Krill are known to be highly susceptible to ultraviolet radiation (UV) but there are limited empirical data. We develop a model for krill mortality caused by UV and parameterize and assess it by comparison with experimental data. The analysis allows us to identify key parameters that should be measured in future experiments and also leads to suggestions about modification of experimental procedure. We illustrate the method for krill found in the Livingston Island area and show that (a) it is possible to estimate the component of natural mortality due to UV-induced damage and (b) that cohorts born in 1979, 1984, or 1997 have different survival in the first 5 years of life, associated with differential UV exposure. In particular, those born in 1997 may have experienced as much as 10% lower survival than those born in 1979. The method developed here allows a potentially important source of krill mortality to be incorporated into the management models and suggests key experiments and field work in the future. |
format |
Article in Journal/Newspaper |
author |
Mangel, M Richerson, K Cresswell, KA Wiedenmann, JR |
author_facet |
Mangel, M Richerson, K Cresswell, KA Wiedenmann, JR |
author_sort |
Mangel, M |
title |
Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data |
title_short |
Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data |
title_full |
Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data |
title_fullStr |
Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data |
title_full_unstemmed |
Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data |
title_sort |
modelling the effects of uv radiation on the survival of antarctic krill ( euphausia superba dana) in the face of limited data |
publisher |
Elsevier Science Bv |
publishDate |
2010 |
url |
https://doi.org/10.1016/j.ecolmodel.2010.06.005 http://ecite.utas.edu.au/131163 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) |
geographic |
Antarctic The Antarctic Livingston Island |
geographic_facet |
Antarctic The Antarctic Livingston Island |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Livingston Island |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Livingston Island |
op_relation |
http://dx.doi.org/10.1016/j.ecolmodel.2010.06.005 Mangel, M and Richerson, K and Cresswell, KA and Wiedenmann, JR, Modelling the effects of UV radiation on the survival of Antarctic krill ( Euphausia superba Dana) in the face of limited data, Ecological Modelling, 221, (17) pp. 2095-2101. ISSN 0304-3800 (2010) [Refereed Article] http://ecite.utas.edu.au/131163 |
op_doi |
https://doi.org/10.1016/j.ecolmodel.2010.06.005 |
container_title |
Ecological Modelling |
container_volume |
221 |
container_issue |
17 |
container_start_page |
2095 |
op_container_end_page |
2101 |
_version_ |
1766261694404755456 |