The Distribution of Cod (Gadus morhua) in the
Cod (Gadus morhua) distribution data for the period 1971–91 from the International Young Fish Survey conducted in February, and the period 1981–91 from the Dutch Ground-fish Survey conducted in October/November, were studied to determine possible trends in their abundance in different parts of the N...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.521.7047 http://archive.nafo.int/open/studies/s18/heessen.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.521.7047 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.521.7047 2023-05-15T16:18:59+02:00 The Distribution of Cod (Gadus morhua) in the North Sea Henk J. L. Heessen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.521.7047 http://archive.nafo.int/open/studies/s18/heessen.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.521.7047 http://archive.nafo.int/open/studies/s18/heessen.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://archive.nafo.int/open/studies/s18/heessen.pdf NAFO Sci. Coun. Studies 18 59–65 text ftciteseerx 2016-01-08T10:10:17Z Cod (Gadus morhua) distribution data for the period 1971–91 from the International Young Fish Survey conducted in February, and the period 1981–91 from the Dutch Ground-fish Survey conducted in October/November, were studied to determine possible trends in their abundance in different parts of the North Sea. Cod were widely distributed. Age groups 0 and 1 were most abundant in the German Bight, along the Dutch coast and northeast coast of England, while the age groups 3 and 4 were most abundant in the northern North Sea. For the southeastern North Sea, an important nursery area, the relation between abundance of cod and depth, temperature and salinity was studied. Although annual differences were pronounced, age groups 0 to 3 showed decreasing abundance with increasing depths with the tendency strongest for age group 0. The younger age groups also had highest densities at low temperature and low salinities, while the older fish were found in warmer water. These age specific differences in distribution were relevant to interpreting data from surveys. Text Gadus morhua Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
NAFO Sci. Coun. Studies 18 59–65 |
spellingShingle |
NAFO Sci. Coun. Studies 18 59–65 North Sea Henk J. L. Heessen The Distribution of Cod (Gadus morhua) in the |
topic_facet |
NAFO Sci. Coun. Studies 18 59–65 |
description |
Cod (Gadus morhua) distribution data for the period 1971–91 from the International Young Fish Survey conducted in February, and the period 1981–91 from the Dutch Ground-fish Survey conducted in October/November, were studied to determine possible trends in their abundance in different parts of the North Sea. Cod were widely distributed. Age groups 0 and 1 were most abundant in the German Bight, along the Dutch coast and northeast coast of England, while the age groups 3 and 4 were most abundant in the northern North Sea. For the southeastern North Sea, an important nursery area, the relation between abundance of cod and depth, temperature and salinity was studied. Although annual differences were pronounced, age groups 0 to 3 showed decreasing abundance with increasing depths with the tendency strongest for age group 0. The younger age groups also had highest densities at low temperature and low salinities, while the older fish were found in warmer water. These age specific differences in distribution were relevant to interpreting data from surveys. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
North Sea Henk J. L. Heessen |
author_facet |
North Sea Henk J. L. Heessen |
author_sort |
North Sea |
title |
The Distribution of Cod (Gadus morhua) in the |
title_short |
The Distribution of Cod (Gadus morhua) in the |
title_full |
The Distribution of Cod (Gadus morhua) in the |
title_fullStr |
The Distribution of Cod (Gadus morhua) in the |
title_full_unstemmed |
The Distribution of Cod (Gadus morhua) in the |
title_sort |
distribution of cod (gadus morhua) in the |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.521.7047 http://archive.nafo.int/open/studies/s18/heessen.pdf |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
http://archive.nafo.int/open/studies/s18/heessen.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.521.7047 http://archive.nafo.int/open/studies/s18/heessen.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766005280383959040 |