Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean
Data of Russian surveys in the Australian-New Zealand sector of the South Ocean in 1956-1983 are presented. Fauna of ostracods in this region includes 66 species belonged to 35 genera, 4 subfamilies and 2 families that is more than in the Atlantic and Indian sectors of the South Ocean but less than...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2014-06-01
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| Series: | Известия ТИНРО |
| Subjects: | |
| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/13 |
| _version_ | 1797702856435826688 |
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| author | Vladimir G. Chavtur Ekaterina R. Mazdygan |
| author_facet | Vladimir G. Chavtur Ekaterina R. Mazdygan |
| author_sort | Vladimir G. Chavtur |
| collection | DOAJ |
| description | Data of Russian surveys in the Australian-New Zealand sector of the South Ocean in 1956-1983 are presented. Fauna of ostracods in this region includes 66 species belonged to 35 genera, 4 subfamilies and 2 families that is more than in the Atlantic and Indian sectors of the South Ocean but less than in the Pacific sector. Both total abundance and species composition of ostracods change with latitude, as well as the abundance of mass species, namely the number of species and their abundance decrease from the Subtropical Convergence toward Antarctica but the number of cold-water species and portion of endemic species increase in the same direction, while dominant species are replaced in the order: wide-spread + subantarctic → wide-spread + antarctic → proper antarctic ones. Pelagic ostracods in the Subantarctic zone are mainly allochthonous species with very low portion of endemic ones; this zone is not biogeographically independent but is a transitional area between the Tropical and Antarctic zones. As compared with the Northern Hemisphere, the pelagic ostracods abundance in the Subantarctic and Antarctic zones is higher than in the Boreal and Arctic zones. |
| first_indexed | 2024-03-12T04:56:57Z |
| format | Article |
| id | doaj.art-aa4286eb1b89490ea5b77707633ecc8d |
| institution | Directory Open Access Journal |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| last_indexed | 2024-03-12T04:56:57Z |
| publishDate | 2014-06-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj.art-aa4286eb1b89490ea5b77707633ecc8d2023-09-03T09:15:08ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102014-06-01177219320810.26428/1606-9919-2014-177-193-20813Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South OceanVladimir G. Chavtur0Ekaterina R. Mazdygan1Институт биологии моря им. А.В. Жирмунского ДВО РАН; Дальневосточный федеральный университетИнститут биологии моря им. А.В. Жирмунского ДВО РАНData of Russian surveys in the Australian-New Zealand sector of the South Ocean in 1956-1983 are presented. Fauna of ostracods in this region includes 66 species belonged to 35 genera, 4 subfamilies and 2 families that is more than in the Atlantic and Indian sectors of the South Ocean but less than in the Pacific sector. Both total abundance and species composition of ostracods change with latitude, as well as the abundance of mass species, namely the number of species and their abundance decrease from the Subtropical Convergence toward Antarctica but the number of cold-water species and portion of endemic species increase in the same direction, while dominant species are replaced in the order: wide-spread + subantarctic → wide-spread + antarctic → proper antarctic ones. Pelagic ostracods in the Subantarctic zone are mainly allochthonous species with very low portion of endemic ones; this zone is not biogeographically independent but is a transitional area between the Tropical and Antarctic zones. As compared with the Northern Hemisphere, the pelagic ostracods abundance in the Subantarctic and Antarctic zones is higher than in the Boreal and Arctic zones.https://izvestiya.tinro-center.ru/jour/article/view/13пелагические остракодыантарктикасубантарктикаавстрало-новозеландский сектор южного океанаширотное распределение |
| spellingShingle | Vladimir G. Chavtur Ekaterina R. Mazdygan Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean Известия ТИНРО пелагические остракоды антарктика субантарктика австрало-новозеландский сектор южного океана широтное распределение |
| title | Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean |
| title_full | Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean |
| title_fullStr | Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean |
| title_full_unstemmed | Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean |
| title_short | Latitudinal distribution of pelagic ostracods (Myodocopa) in the Australian-New Zealand sector of the South Ocean |
| title_sort | latitudinal distribution of pelagic ostracods myodocopa in the australian new zealand sector of the south ocean |
| topic | пелагические остракоды антарктика субантарктика австрало-новозеландский сектор южного океана широтное распределение |
| url | https://izvestiya.tinro-center.ru/jour/article/view/13 |
| work_keys_str_mv | AT vladimirgchavtur latitudinaldistributionofpelagicostracodsmyodocopaintheaustraliannewzealandsectorofthesouthocean AT ekaterinarmazdygan latitudinaldistributionofpelagicostracodsmyodocopaintheaustraliannewzealandsectorofthesouthocean |