Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water
Many benthic invertebrates in the boreo-Atlantic region reproduce via pelagic larvae. Past investigations in polar areas suggested a greater predominance of species lacking a pelagic phase. In this study, the reproduction strategies of the main 88 species of the Kara Sea were investigated. Field obs...
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Language: | English |
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Inter-Research, Oldendorf/Luhe
2008
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ftufz:oai:ufz.de:918 2023-12-10T09:45:38+01:00 Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water Fetzer, Ingo Arntz, W.E. 2008 application/pdf https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=918 https://doi.org/10.3354/meps07271 en eng Inter-Research, Oldendorf/Luhe Marine Ecology-Progress Series 356;; 189 - 202 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=918 https://dx.doi.org/10.3354/meps07271 info:eu-repo/semantics/closedAccess ISSN: 0171-8630 Arctic Kara Sea Benthos Biogeography Reproduction types Reproduction period info:eu-repo/semantics/article https://purl.org/dc/dcmitype/Text 2008 ftufz https://doi.org/10.3354/meps07271 2023-11-12T23:27:25Z Many benthic invertebrates in the boreo-Atlantic region reproduce via pelagic larvae. Past investigations in polar areas suggested a greater predominance of species lacking a pelagic phase. In this study, the reproduction strategies of the main 88 species of the Kara Sea were investigated. Field observations were supplemented by literature studies (reproduction period and strategy, biogeographical affiliation). Larvae of 44 meroplanktonic species were identified, but adult forms of only 23 of these species are known from the region. For the other 21 larval types, adults were not present in the Kara Sea but have previously been recorded in the adjacent Barents Sea. Larval transport processes are thus potentially important for the import of species into the region. High numbers of species of temperate origin were common, and had a strong influence on the overall reproduction patterns of the region. The southern Kara Sea was mainly dominated by 2 groups: highly mobile crustaceans, which are obligate non-pelagic developers, and non-motile organisms with primarily pelagic reproduction modes. We propose that reproduction patterns are strongly influenced by the highly variable environmental conditions of the Kara Sea which, via ice-scouring and the high input of freshwater from the 2 adjacent rivers, regularly lead to a local depletion of the benthic species. The input of warm freshwater from the rivers enhances the survival of species with a boreal biogeographical distribution, which additionally contributes to the high number of species with pelagic development that were found. Overall, the reproduction modes of benthic invertebrates in the Kara Sea are thus strongly governed by the local environmental conditions characteristic of the region. Article in Journal/Newspaper Arctic Barents Sea Kara Sea UFZ - Publication Index (Helmholtz-Centre for Environmental Research) Arctic Barents Sea Kara Sea Marine Ecology Progress Series 356 189 202 |
institution |
Open Polar |
collection |
UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
op_collection_id |
ftufz |
language |
English |
topic |
Arctic Kara Sea Benthos Biogeography Reproduction types Reproduction period |
spellingShingle |
Arctic Kara Sea Benthos Biogeography Reproduction types Reproduction period Fetzer, Ingo Arntz, W.E. Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water |
topic_facet |
Arctic Kara Sea Benthos Biogeography Reproduction types Reproduction period |
description |
Many benthic invertebrates in the boreo-Atlantic region reproduce via pelagic larvae. Past investigations in polar areas suggested a greater predominance of species lacking a pelagic phase. In this study, the reproduction strategies of the main 88 species of the Kara Sea were investigated. Field observations were supplemented by literature studies (reproduction period and strategy, biogeographical affiliation). Larvae of 44 meroplanktonic species were identified, but adult forms of only 23 of these species are known from the region. For the other 21 larval types, adults were not present in the Kara Sea but have previously been recorded in the adjacent Barents Sea. Larval transport processes are thus potentially important for the import of species into the region. High numbers of species of temperate origin were common, and had a strong influence on the overall reproduction patterns of the region. The southern Kara Sea was mainly dominated by 2 groups: highly mobile crustaceans, which are obligate non-pelagic developers, and non-motile organisms with primarily pelagic reproduction modes. We propose that reproduction patterns are strongly influenced by the highly variable environmental conditions of the Kara Sea which, via ice-scouring and the high input of freshwater from the 2 adjacent rivers, regularly lead to a local depletion of the benthic species. The input of warm freshwater from the rivers enhances the survival of species with a boreal biogeographical distribution, which additionally contributes to the high number of species with pelagic development that were found. Overall, the reproduction modes of benthic invertebrates in the Kara Sea are thus strongly governed by the local environmental conditions characteristic of the region. |
format |
Article in Journal/Newspaper |
author |
Fetzer, Ingo Arntz, W.E. |
author_facet |
Fetzer, Ingo Arntz, W.E. |
author_sort |
Fetzer, Ingo |
title |
Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water |
title_short |
Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water |
title_full |
Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water |
title_fullStr |
Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water |
title_full_unstemmed |
Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water |
title_sort |
reproductive strategies of benthic invertebrates in the kara sea (russian arctic): adaptation of reproduction modes to cold water |
publisher |
Inter-Research, Oldendorf/Luhe |
publishDate |
2008 |
url |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=918 https://doi.org/10.3354/meps07271 |
geographic |
Arctic Barents Sea Kara Sea |
geographic_facet |
Arctic Barents Sea Kara Sea |
genre |
Arctic Barents Sea Kara Sea |
genre_facet |
Arctic Barents Sea Kara Sea |
op_source |
ISSN: 0171-8630 |
op_relation |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=918 https://dx.doi.org/10.3354/meps07271 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.3354/meps07271 |
container_title |
Marine Ecology Progress Series |
container_volume |
356 |
container_start_page |
189 |
op_container_end_page |
202 |
_version_ |
1784888902037798912 |