Length and age at maturity of Antarctic krill
Data from several summer research cruises in the Antarctic Peninsula region were analysed to calculate length (L50) and age at maturity for the antarctic krill, Euphasia superba. Length at maturity L50 is defined as the length ata which 50% of the krill stock attains sexual maturity. L50 values of 3...
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ftopenagrar:oai:www.openagrar.de:timport_mods_00030119 2024-09-15T17:47:44+00:00 Length and age at maturity of Antarctic krill Siegel, Volker Loeb, Valerie 1994 3 https://www.openagrar.de/receive/timport_mods_00030119 eng eng Antarctic science -- 0954-1020 -- 1009128-2 https://www.openagrar.de/receive/timport_mods_00030119 public info:eu-repo/semantics/restrictedAccess article Text krill population dynamics article Text doc-type:article 1994 ftopenagrar 2024-07-08T23:56:24Z Data from several summer research cruises in the Antarctic Peninsula region were analysed to calculate length (L50) and age at maturity for the antarctic krill, Euphasia superba. Length at maturity L50 is defined as the length ata which 50% of the krill stock attains sexual maturity. L50 values of 34.65-35.91 mm for female krill are the best estimates for the peak spawning season. Males attain sexual maturity later at L50 values of 43.35-43.71 mm. Length at maturity and length at first spawning are identical for krill. Comparisons with mean length-at-age data show that females mature in the third growth season (age class 2+), while males reach maturity in the fourth year (age class 3+). Both sexes show "knife-edge-maturity". Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctic Science OpenAgrar (OA) |
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Open Polar |
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ftopenagrar |
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English |
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article Text krill population dynamics |
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article Text krill population dynamics Siegel, Volker Loeb, Valerie Length and age at maturity of Antarctic krill |
topic_facet |
article Text krill population dynamics |
description |
Data from several summer research cruises in the Antarctic Peninsula region were analysed to calculate length (L50) and age at maturity for the antarctic krill, Euphasia superba. Length at maturity L50 is defined as the length ata which 50% of the krill stock attains sexual maturity. L50 values of 34.65-35.91 mm for female krill are the best estimates for the peak spawning season. Males attain sexual maturity later at L50 values of 43.35-43.71 mm. Length at maturity and length at first spawning are identical for krill. Comparisons with mean length-at-age data show that females mature in the third growth season (age class 2+), while males reach maturity in the fourth year (age class 3+). Both sexes show "knife-edge-maturity". |
format |
Article in Journal/Newspaper |
author |
Siegel, Volker Loeb, Valerie |
author_facet |
Siegel, Volker Loeb, Valerie |
author_sort |
Siegel, Volker |
title |
Length and age at maturity of Antarctic krill |
title_short |
Length and age at maturity of Antarctic krill |
title_full |
Length and age at maturity of Antarctic krill |
title_fullStr |
Length and age at maturity of Antarctic krill |
title_full_unstemmed |
Length and age at maturity of Antarctic krill |
title_sort |
length and age at maturity of antarctic krill |
publishDate |
1994 |
url |
https://www.openagrar.de/receive/timport_mods_00030119 |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctic Science |
op_relation |
Antarctic science -- 0954-1020 -- 1009128-2 https://www.openagrar.de/receive/timport_mods_00030119 |
op_rights |
public info:eu-repo/semantics/restrictedAccess |
_version_ |
1810497219461120000 |