Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas
Comprehensive studies of the ecosystem of the Atlantic sector of the Antarctic were carried out in the period between 2020 and 2022, during the 79th and 87th sea expeditions on the R/V “Akademik Mstislav Keldysh”. Concentrations of soluble forms of 15 trace elements, except Mo, in surface waters of...
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MDPI AG
2022
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Online Access: | https://doi.org/10.3390/w14244103 https://doaj.org/article/34068cbfc8c4466ba23d6dec6fc994de |
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ftdoajarticles:oai:doaj.org/article:34068cbfc8c4466ba23d6dec6fc994de 2023-05-15T13:36:15+02:00 Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas Natalia Mirzoeva Tatiana Polyakova Ernest Samyshev Tatiana Churilova Vladimir Mukhanov Alexandr Melnik Vladislav Proskurnin Evgeny Sakhon Elena Skorokhod Olga Chuzhikova-Proskurnina Elena Chudinovskih Natalia Minkina Natalia Moiseeva Victor Melnikov Artem Paraskiv Lidia Melnik Tatiana Efimova 2022-12-01T00:00:00Z https://doi.org/10.3390/w14244103 https://doaj.org/article/34068cbfc8c4466ba23d6dec6fc994de EN eng MDPI AG https://www.mdpi.com/2073-4441/14/24/4103 https://doaj.org/toc/2073-4441 doi:10.3390/w14244103 2073-4441 https://doaj.org/article/34068cbfc8c4466ba23d6dec6fc994de Water, Vol 14, Iss 4103, p 4103 (2022) Euphausia superba Salpa thompsoni mesoparasitic copepods bacterioplankton bioluminescence chlorophyll a Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 article 2022 ftdoajarticles https://doi.org/10.3390/w14244103 2022-12-30T19:29:57Z Comprehensive studies of the ecosystem of the Atlantic sector of the Antarctic were carried out in the period between 2020 and 2022, during the 79th and 87th sea expeditions on the R/V “Akademik Mstislav Keldysh”. Concentrations of soluble forms of 15 trace elements, except Mo, in surface waters of the Southern Ocean were matched the lower limit of their background concentrations in oceanic waters. A high spatial variability of chlorophyll a —an indicator of phytoplankton biomass, which is the main food object of the Antarctic krill—was revealed. In the Bransfield Strait, the abundance of bacterioplankton exhibited a weak relationship with water temperature and a pronounced dependence on chlorophyll fluorescence. It was determined, by using the bioluminescence method, that the largest concentrations of larvae and juveniles of krill were noted in the Bransfield Strait, on the shelf of the Antarctic Peninsula. Against the background of a decline in krill abundance in recent years, there has been an intensive development of Salpa thompsoni , the main food competitor of krill. New data on the distribution of mesoparasitic copepods on endemic fish of the Southern Ocean were also obtained, and their pathogenic effect on the body of fish hosts has been revealed. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Bransfield Strait Euphausia superba Southern Ocean Copepods Directory of Open Access Journals: DOAJ Articles Antarctic Southern Ocean The Antarctic Antarctic Peninsula Bransfield Strait Water 14 24 4103 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Euphausia superba Salpa thompsoni mesoparasitic copepods bacterioplankton bioluminescence chlorophyll a Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
spellingShingle |
Euphausia superba Salpa thompsoni mesoparasitic copepods bacterioplankton bioluminescence chlorophyll a Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Natalia Mirzoeva Tatiana Polyakova Ernest Samyshev Tatiana Churilova Vladimir Mukhanov Alexandr Melnik Vladislav Proskurnin Evgeny Sakhon Elena Skorokhod Olga Chuzhikova-Proskurnina Elena Chudinovskih Natalia Minkina Natalia Moiseeva Victor Melnikov Artem Paraskiv Lidia Melnik Tatiana Efimova Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas |
topic_facet |
Euphausia superba Salpa thompsoni mesoparasitic copepods bacterioplankton bioluminescence chlorophyll a Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 |
description |
Comprehensive studies of the ecosystem of the Atlantic sector of the Antarctic were carried out in the period between 2020 and 2022, during the 79th and 87th sea expeditions on the R/V “Akademik Mstislav Keldysh”. Concentrations of soluble forms of 15 trace elements, except Mo, in surface waters of the Southern Ocean were matched the lower limit of their background concentrations in oceanic waters. A high spatial variability of chlorophyll a —an indicator of phytoplankton biomass, which is the main food object of the Antarctic krill—was revealed. In the Bransfield Strait, the abundance of bacterioplankton exhibited a weak relationship with water temperature and a pronounced dependence on chlorophyll fluorescence. It was determined, by using the bioluminescence method, that the largest concentrations of larvae and juveniles of krill were noted in the Bransfield Strait, on the shelf of the Antarctic Peninsula. Against the background of a decline in krill abundance in recent years, there has been an intensive development of Salpa thompsoni , the main food competitor of krill. New data on the distribution of mesoparasitic copepods on endemic fish of the Southern Ocean were also obtained, and their pathogenic effect on the body of fish hosts has been revealed. |
format |
Article in Journal/Newspaper |
author |
Natalia Mirzoeva Tatiana Polyakova Ernest Samyshev Tatiana Churilova Vladimir Mukhanov Alexandr Melnik Vladislav Proskurnin Evgeny Sakhon Elena Skorokhod Olga Chuzhikova-Proskurnina Elena Chudinovskih Natalia Minkina Natalia Moiseeva Victor Melnikov Artem Paraskiv Lidia Melnik Tatiana Efimova |
author_facet |
Natalia Mirzoeva Tatiana Polyakova Ernest Samyshev Tatiana Churilova Vladimir Mukhanov Alexandr Melnik Vladislav Proskurnin Evgeny Sakhon Elena Skorokhod Olga Chuzhikova-Proskurnina Elena Chudinovskih Natalia Minkina Natalia Moiseeva Victor Melnikov Artem Paraskiv Lidia Melnik Tatiana Efimova |
author_sort |
Natalia Mirzoeva |
title |
Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas |
title_short |
Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas |
title_full |
Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas |
title_fullStr |
Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas |
title_full_unstemmed |
Current Assessment of Water Quality and Biota Characteristics of the Pelagic Ecosystem of the Atlantic Sector of Antarctica: The Multidisciplinary Studies by the Institute of Biology of the Southern Seas |
title_sort |
current assessment of water quality and biota characteristics of the pelagic ecosystem of the atlantic sector of antarctica: the multidisciplinary studies by the institute of biology of the southern seas |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/w14244103 https://doaj.org/article/34068cbfc8c4466ba23d6dec6fc994de |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Bransfield Strait |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Bransfield Strait |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Bransfield Strait Euphausia superba Southern Ocean Copepods |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Bransfield Strait Euphausia superba Southern Ocean Copepods |
op_source |
Water, Vol 14, Iss 4103, p 4103 (2022) |
op_relation |
https://www.mdpi.com/2073-4441/14/24/4103 https://doaj.org/toc/2073-4441 doi:10.3390/w14244103 2073-4441 https://doaj.org/article/34068cbfc8c4466ba23d6dec6fc994de |
op_doi |
https://doi.org/10.3390/w14244103 |
container_title |
Water |
container_volume |
14 |
container_issue |
24 |
container_start_page |
4103 |
_version_ |
1766076049414684672 |