Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot
Plankton food web dynamics were studied during a complete production season in a semi-intensive land-based facility for rearing of turbot (Scophthalmus maximus) larvae. The production season was divided into three production cycles of 3–5 weeks. Phytoplankton biomass (using chlorophyll a as biomass...
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Language: | English |
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2016
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Online Access: | https://pure.au.dk/portal/en/publications/15c4295c-ec4d-4bfd-9da9-bd17d50ea414 https://doi.org/10.1111/anu.12328 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/15c4295c-ec4d-4bfd-9da9-bd17d50ea414 2024-02-04T10:04:22+01:00 Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot Jakobsen, Hans Jepsen, Per Meyer Blanda, Elisa Sørensen, Niels O.G. Novac, Aliona Engell-Sørensen, Kirsten Hansen, Benni Winding 2016 https://pure.au.dk/portal/en/publications/15c4295c-ec4d-4bfd-9da9-bd17d50ea414 https://doi.org/10.1111/anu.12328 eng eng https://pure.au.dk/portal/en/publications/15c4295c-ec4d-4bfd-9da9-bd17d50ea414 info:eu-repo/semantics/restrictedAccess Jakobsen , H , Jepsen , P M , Blanda , E , Sørensen , N O G , Novac , A , Engell-Sørensen , K & Hansen , B W 2016 , ' Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot ' , Aquaculture Nutrition , vol. 22 , no. 6 , pp. 1239-1250 . https://doi.org/10.1111/anu.12328 aquaculture copepods as live feed nitrogen deficiency phytoplankton turbot larvae article 2016 ftuniaarhuspubl https://doi.org/10.1111/anu.12328 2024-01-10T23:59:43Z Plankton food web dynamics were studied during a complete production season in a semi-intensive land-based facility for rearing of turbot (Scophthalmus maximus) larvae. The production season was divided into three production cycles of 3–5 weeks. Phytoplankton biomass (using chlorophyll a as biomass proxy) peaked in each production cycle. However, the maximum biomass decreased from spring (18 μg chlorophyll a L −1 ) to fall (ca. 7 μg chlorophyll a L −1 ), simultaneous with a decline in the concentration of dissolved nitrogen in the inoculating water. During the three production cycles, we observed decreasing copepod nauplii concentration from spring to fall in the rearing tanks. The decreasing nitrogen gave increasing carbon to chlorophyll a ratio in the seston (from 23 in spring to 73 in fall). The pool of free amino acids in seston was constant. We suggest that the decreasing nitrogen input in the inoculating water reduces the quality of the phytoplankton and thus the growth potential of the prey for fish larvae, copepods. Article in Journal/Newspaper Scophthalmus maximus Turbot Copepods Aarhus University: Research Aquaculture Nutrition 22 6 1239 1250 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
aquaculture copepods as live feed nitrogen deficiency phytoplankton turbot larvae |
spellingShingle |
aquaculture copepods as live feed nitrogen deficiency phytoplankton turbot larvae Jakobsen, Hans Jepsen, Per Meyer Blanda, Elisa Sørensen, Niels O.G. Novac, Aliona Engell-Sørensen, Kirsten Hansen, Benni Winding Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
topic_facet |
aquaculture copepods as live feed nitrogen deficiency phytoplankton turbot larvae |
description |
Plankton food web dynamics were studied during a complete production season in a semi-intensive land-based facility for rearing of turbot (Scophthalmus maximus) larvae. The production season was divided into three production cycles of 3–5 weeks. Phytoplankton biomass (using chlorophyll a as biomass proxy) peaked in each production cycle. However, the maximum biomass decreased from spring (18 μg chlorophyll a L −1 ) to fall (ca. 7 μg chlorophyll a L −1 ), simultaneous with a decline in the concentration of dissolved nitrogen in the inoculating water. During the three production cycles, we observed decreasing copepod nauplii concentration from spring to fall in the rearing tanks. The decreasing nitrogen gave increasing carbon to chlorophyll a ratio in the seston (from 23 in spring to 73 in fall). The pool of free amino acids in seston was constant. We suggest that the decreasing nitrogen input in the inoculating water reduces the quality of the phytoplankton and thus the growth potential of the prey for fish larvae, copepods. |
format |
Article in Journal/Newspaper |
author |
Jakobsen, Hans Jepsen, Per Meyer Blanda, Elisa Sørensen, Niels O.G. Novac, Aliona Engell-Sørensen, Kirsten Hansen, Benni Winding |
author_facet |
Jakobsen, Hans Jepsen, Per Meyer Blanda, Elisa Sørensen, Niels O.G. Novac, Aliona Engell-Sørensen, Kirsten Hansen, Benni Winding |
author_sort |
Jakobsen, Hans |
title |
Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
title_short |
Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
title_full |
Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
title_fullStr |
Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
title_full_unstemmed |
Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
title_sort |
plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot |
publishDate |
2016 |
url |
https://pure.au.dk/portal/en/publications/15c4295c-ec4d-4bfd-9da9-bd17d50ea414 https://doi.org/10.1111/anu.12328 |
genre |
Scophthalmus maximus Turbot Copepods |
genre_facet |
Scophthalmus maximus Turbot Copepods |
op_source |
Jakobsen , H , Jepsen , P M , Blanda , E , Sørensen , N O G , Novac , A , Engell-Sørensen , K & Hansen , B W 2016 , ' Plankton composition and biomass development: a seasonal study of a semi-intensive outdoor system for rearing of turbot ' , Aquaculture Nutrition , vol. 22 , no. 6 , pp. 1239-1250 . https://doi.org/10.1111/anu.12328 |
op_relation |
https://pure.au.dk/portal/en/publications/15c4295c-ec4d-4bfd-9da9-bd17d50ea414 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/anu.12328 |
container_title |
Aquaculture Nutrition |
container_volume |
22 |
container_issue |
6 |
container_start_page |
1239 |
op_container_end_page |
1250 |
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1789972799632179200 |