The dispersal patterns and behaviour of North Sea cod (Gadus morhua) studied using electronic data storage tags
Turner, K.; Righton, D.; Metcalfe, J.D. (2002). The dispersal patterns and behaviour of North Sea cod (Gadus morhua) studied using electronic data storage tags. Hydrobiologia 483(1-3): 201-208. https://dx.doi.org/10.1023/A:1021344015515
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, more
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| Keywords |
Gadus morhua Linnaeus, 1758 [WoRMS]
Marine/Coastal |
| Author keywords |
electronic data storage tags, cod, North Sea, migration, behaviour |
| Authors | | Top |
- Turner, K.
- Righton, D.
- Metcalfe, J.D.
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| Abstract |
The migratory behaviour of adult cod was studied using electronic data storage tags (DSTs). Fifty-eight cod were externally tagged with LOTEK LTD-100 DSTs and released off Lowestoft in March and April 1999. Twenty-two tags were returned by March 2000. Individuals demonstrated significant shifts in behaviour patterns that were associated with migration and residence on feeding grounds. During migration, individuals were very active and utilised a large vertical range. In contrast, individuals demonstrated low activity and a much reduced vertical range whilst on summer feeding grounds. Use of the Tidal Location Method showed that individuals dispersed to feeding grounds in the central and southern North Sea. Our results demonstrate that individual-based studies of fish behaviour can provide information relevant to fisheries management. |
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