Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay
Abstract Estimation of copepod carbon (C) biomass is essential in studies of secondary production and ecology in aquatic systems. The coastal Antarctic region belonging to the Indian Ocean sector of the Southern Ocean is a globally well-known sink for carbon and is extremely sensitive to climate cha...
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Online Access: | http://dx.doi.org/10.1093/jcbiol/ruz077 http://academic.oup.com/jcb/article-pdf/40/1/58/31696986/ruz077.pdf |
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croxfordunivpr:10.1093/jcbiol/ruz077 2024-02-11T09:56:26+01:00 Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay Kerkar, Anvita U Venkataramana, Vankara Tripathy, Sarat C 2019 http://dx.doi.org/10.1093/jcbiol/ruz077 http://academic.oup.com/jcb/article-pdf/40/1/58/31696986/ruz077.pdf en eng Oxford University Press (OUP) http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Journal of Crustacean Biology volume 40, issue 1, page 58-66 ISSN 0278-0372 1937-240X Aquatic Science journal-article 2019 croxfordunivpr https://doi.org/10.1093/jcbiol/ruz077 2024-01-12T09:38:34Z Abstract Estimation of copepod carbon (C) biomass is essential in studies of secondary production and ecology in aquatic systems. The coastal Antarctic region belonging to the Indian Ocean sector of the Southern Ocean is a globally well-known sink for carbon and is extremely sensitive to climate change. During the austral summer, an attempt was made in Prydz Bay to measure copepod prosomal length and use regression equations to derive copepod C-biomass. The technique involved microscopic measurements, by means of a digital imaging device, of copepods collected at four intervals during a period of 48 hr, and the application of appropriate conversion factors to convert these values into C-biomass. Totals of 10.38 mgC m–3 and 25.55 mgC m–3 were recorded in the upper 200 m on day 1 and day 2, respectively. Out of the six copepod species present, Paraeuchaeta antarctica (Giesbrecht, 1902) (31.12 ± 11.10 µg m–3) and Oithona similis (Claus, 1866) (1.01 ± 0.42 µg m–3) represented the highest contributors to C-biomass amongst the calanoids and cyclopoids, respectively. Reports on copepod C-biomass estimates in general are extremely sparse. To our knowledge, this study is the first of its kind in the study area that provides species-specific estimates of C at every time point using a labor-saving and non-destructive method that allows preservation of the samples for further analyses. Based on the C estimates from our study, it can be said that copepod community is an extremely important component of the carbon cycle in coastal Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Prydz Bay Southern Ocean Copepods Oxford University Press Antarctic Southern Ocean Austral Prydz Bay Indian Journal of Crustacean Biology 40 1 58 66 |
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Oxford University Press |
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English |
topic |
Aquatic Science |
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Aquatic Science Kerkar, Anvita U Venkataramana, Vankara Tripathy, Sarat C Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay |
topic_facet |
Aquatic Science |
description |
Abstract Estimation of copepod carbon (C) biomass is essential in studies of secondary production and ecology in aquatic systems. The coastal Antarctic region belonging to the Indian Ocean sector of the Southern Ocean is a globally well-known sink for carbon and is extremely sensitive to climate change. During the austral summer, an attempt was made in Prydz Bay to measure copepod prosomal length and use regression equations to derive copepod C-biomass. The technique involved microscopic measurements, by means of a digital imaging device, of copepods collected at four intervals during a period of 48 hr, and the application of appropriate conversion factors to convert these values into C-biomass. Totals of 10.38 mgC m–3 and 25.55 mgC m–3 were recorded in the upper 200 m on day 1 and day 2, respectively. Out of the six copepod species present, Paraeuchaeta antarctica (Giesbrecht, 1902) (31.12 ± 11.10 µg m–3) and Oithona similis (Claus, 1866) (1.01 ± 0.42 µg m–3) represented the highest contributors to C-biomass amongst the calanoids and cyclopoids, respectively. Reports on copepod C-biomass estimates in general are extremely sparse. To our knowledge, this study is the first of its kind in the study area that provides species-specific estimates of C at every time point using a labor-saving and non-destructive method that allows preservation of the samples for further analyses. Based on the C estimates from our study, it can be said that copepod community is an extremely important component of the carbon cycle in coastal Antarctica. |
format |
Article in Journal/Newspaper |
author |
Kerkar, Anvita U Venkataramana, Vankara Tripathy, Sarat C |
author_facet |
Kerkar, Anvita U Venkataramana, Vankara Tripathy, Sarat C |
author_sort |
Kerkar, Anvita U |
title |
Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay |
title_short |
Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay |
title_full |
Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay |
title_fullStr |
Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay |
title_full_unstemmed |
Morphometric estimation of copepod carbon biomass in coastal Antarctica: a case study in Prydz Bay |
title_sort |
morphometric estimation of copepod carbon biomass in coastal antarctica: a case study in prydz bay |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1093/jcbiol/ruz077 http://academic.oup.com/jcb/article-pdf/40/1/58/31696986/ruz077.pdf |
geographic |
Antarctic Southern Ocean Austral Prydz Bay Indian |
geographic_facet |
Antarctic Southern Ocean Austral Prydz Bay Indian |
genre |
Antarc* Antarctic Antarctica Prydz Bay Southern Ocean Copepods |
genre_facet |
Antarc* Antarctic Antarctica Prydz Bay Southern Ocean Copepods |
op_source |
Journal of Crustacean Biology volume 40, issue 1, page 58-66 ISSN 0278-0372 1937-240X |
op_rights |
http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ |
op_doi |
https://doi.org/10.1093/jcbiol/ruz077 |
container_title |
Journal of Crustacean Biology |
container_volume |
40 |
container_issue |
1 |
container_start_page |
58 |
op_container_end_page |
66 |
_version_ |
1790603096608473088 |