The daily feeding dynamics in various length groups of the Barents Sea capelin
Interrelations between fish populations in the Barents Sea. Proceedings of the fifth PINRO-IMR Symposium. Murmansk, 12-16 August 1991. A total of 692 capelin stomachs collected in the Goose Bank area in August 1989 by 24 hour fishery were analyzed by 3 cm capelin length groups. The nwnber of prey ca...
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ftimr:oai:imr.brage.unit.no:11250/107557 2023-05-15T15:38:30+02:00 The daily feeding dynamics in various length groups of the Barents Sea capelin Ajiad, Adnan Mosa Pushchaeva, T. Ya. 1992 556330 bytes application/pdf http://hdl.handle.net/11250/107557 eng eng PINRO-IMR Symposium 5 http://hdl.handle.net/11250/107557 Conference object 1992 ftimr 2021-09-23T20:15:19Z Interrelations between fish populations in the Barents Sea. Proceedings of the fifth PINRO-IMR Symposium. Murmansk, 12-16 August 1991. A total of 692 capelin stomachs collected in the Goose Bank area in August 1989 by 24 hour fishery were analyzed by 3 cm capelin length groups. The nwnber of prey categories consumed by the Barents Sea capelin showed a tendency to increase with increasing fish length up to 12 cm. Calanus finmarchicus was the major contributor in the diet (66.4 % of total stomach weight) of length group 6-8.9 cm. Capelin in length group 9-11.9 cm had mainly fed on Calanus finmarchicus (33.5 %), Parathernisto abyssorum (14.5 %) and Thysanoessa raschii (28.0 %) while the two species Thysanoessa inermis and Thysanoessa raschii occupied 95.2% of the stomach content weight in length group 12-14.9 cm. The feeding seemed to have a peak in the evening and a minimum during the midday for all length groups. The daily ration during this period is estimated to between 1.3 and 2.2 % of fish body weight. Accordingly, these data gives between 3640 and 6160 tonnes as the daily consumption of zooplankton by the capelin stock in the Goose Bank area. Conference Object Barents Sea Calanus finmarchicus Thysanoessa raschii Thysanoessa inermis Institute for Marine Research: Brage IMR Barents Sea Murmansk |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
Interrelations between fish populations in the Barents Sea. Proceedings of the fifth PINRO-IMR Symposium. Murmansk, 12-16 August 1991. A total of 692 capelin stomachs collected in the Goose Bank area in August 1989 by 24 hour fishery were analyzed by 3 cm capelin length groups. The nwnber of prey categories consumed by the Barents Sea capelin showed a tendency to increase with increasing fish length up to 12 cm. Calanus finmarchicus was the major contributor in the diet (66.4 % of total stomach weight) of length group 6-8.9 cm. Capelin in length group 9-11.9 cm had mainly fed on Calanus finmarchicus (33.5 %), Parathernisto abyssorum (14.5 %) and Thysanoessa raschii (28.0 %) while the two species Thysanoessa inermis and Thysanoessa raschii occupied 95.2% of the stomach content weight in length group 12-14.9 cm. The feeding seemed to have a peak in the evening and a minimum during the midday for all length groups. The daily ration during this period is estimated to between 1.3 and 2.2 % of fish body weight. Accordingly, these data gives between 3640 and 6160 tonnes as the daily consumption of zooplankton by the capelin stock in the Goose Bank area. |
format |
Conference Object |
author |
Ajiad, Adnan Mosa Pushchaeva, T. Ya. |
spellingShingle |
Ajiad, Adnan Mosa Pushchaeva, T. Ya. The daily feeding dynamics in various length groups of the Barents Sea capelin |
author_facet |
Ajiad, Adnan Mosa Pushchaeva, T. Ya. |
author_sort |
Ajiad, Adnan Mosa |
title |
The daily feeding dynamics in various length groups of the Barents Sea capelin |
title_short |
The daily feeding dynamics in various length groups of the Barents Sea capelin |
title_full |
The daily feeding dynamics in various length groups of the Barents Sea capelin |
title_fullStr |
The daily feeding dynamics in various length groups of the Barents Sea capelin |
title_full_unstemmed |
The daily feeding dynamics in various length groups of the Barents Sea capelin |
title_sort |
daily feeding dynamics in various length groups of the barents sea capelin |
publishDate |
1992 |
url |
http://hdl.handle.net/11250/107557 |
geographic |
Barents Sea Murmansk |
geographic_facet |
Barents Sea Murmansk |
genre |
Barents Sea Calanus finmarchicus Thysanoessa raschii Thysanoessa inermis |
genre_facet |
Barents Sea Calanus finmarchicus Thysanoessa raschii Thysanoessa inermis |
op_relation |
PINRO-IMR Symposium 5 http://hdl.handle.net/11250/107557 |
_version_ |
1766369463337222144 |