Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92)
The seasonal cycle in feeding activity of Greenland halibut shows a maximum in autumn in depths between 700 - 900 m. In deeper waters no seasonality appears at all. A 24-hour cycle in feeding activity is observed which is length related, with a daytime (6-12 hour interval) maximum in smaller fish (&...
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Centro Oceanográfico de Vigo
1993
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ftieo:oai:repositorio.ieo.es:10508/897 2023-05-15T16:27:39+02:00 Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) Junquera, S. (Susana) Atlantic Ocean North Atlantic Northwest Atlantic 1993-06 http://hdl.handle.net/10508/897 eng eng Centro Oceanográfico de Vigo http://hdl.handle.net/10508/897 Junquera, S. 1993. Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92). NAFO Sci. Coun. Res. Doc. 93/17, Serial Nº N2194: 11p. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ CC-BY-NC-ND workingPaper 1993 ftieo 2022-07-26T23:46:52Z The seasonal cycle in feeding activity of Greenland halibut shows a maximum in autumn in depths between 700 - 900 m. In deeper waters no seasonality appears at all. A 24-hour cycle in feeding activity is observed which is length related, with a daytime (6-12 hour interval) maximum in smaller fish (<60 cm) and at both sunset and night (18-24 hour and 0-6 hour intervals) in the largest fish (<80 cm). The intermediate length class (60-80 cm) shows a minimum in feeding activity in the afternoon (12-18 h) and in general a maximum in the interval 6-12 h, but in this group significant feeding activity occurs also at night. Catch rates decrease in autumn and reach a maximum in winter. In winter, increased catchs occurs mainly at night (0-6 h interval) and are based mainly in the smallest length class (<60 cm), which feeds least during this time interval. An inverse relationship between feeding intensity and catch rates is been observed. Report Greenland North Atlantic Northwest Atlantic Instituto Español de Oceanografía: e-IEO Greenland |
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Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
description |
The seasonal cycle in feeding activity of Greenland halibut shows a maximum in autumn in depths between 700 - 900 m. In deeper waters no seasonality appears at all. A 24-hour cycle in feeding activity is observed which is length related, with a daytime (6-12 hour interval) maximum in smaller fish (<60 cm) and at both sunset and night (18-24 hour and 0-6 hour intervals) in the largest fish (<80 cm). The intermediate length class (60-80 cm) shows a minimum in feeding activity in the afternoon (12-18 h) and in general a maximum in the interval 6-12 h, but in this group significant feeding activity occurs also at night. Catch rates decrease in autumn and reach a maximum in winter. In winter, increased catchs occurs mainly at night (0-6 h interval) and are based mainly in the smallest length class (<60 cm), which feeds least during this time interval. An inverse relationship between feeding intensity and catch rates is been observed. |
format |
Report |
author |
Junquera, S. (Susana) |
spellingShingle |
Junquera, S. (Susana) Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) |
author_facet |
Junquera, S. (Susana) |
author_sort |
Junquera, S. (Susana) |
title |
Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) |
title_short |
Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) |
title_full |
Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) |
title_fullStr |
Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) |
title_full_unstemmed |
Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92) |
title_sort |
feeding cycles of greenland halibut (reinhardtius hippoglossoides) in the flemish pass area in relation to catch rates (1991-92) |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
1993 |
url |
http://hdl.handle.net/10508/897 |
op_coverage |
Atlantic Ocean North Atlantic Northwest Atlantic |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland North Atlantic Northwest Atlantic |
genre_facet |
Greenland North Atlantic Northwest Atlantic |
op_relation |
http://hdl.handle.net/10508/897 Junquera, S. 1993. Feeding Cycles of Greenland Halibut (Reinhardtius hippoglossoides) in the Flemish Pass Area in Relation to Catch Rates (1991-92). NAFO Sci. Coun. Res. Doc. 93/17, Serial Nº N2194: 11p. |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766017113489670144 |