Vertical movements of North Sea Cod
Various air-breathing marine vertebrates such as seals, turtles and seabirds show distinct patterns of diving behaviour. For fish, the distinction between different vertical behaviours is often less clear-cut, as there are no surface intervals to differentiate between dives. Using data from acoustic...
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ftdeakinunifig:oai:figshare.com:article/20953627 2023-05-15T16:19:02+02:00 Vertical movements of North Sea Cod V Hobson D Righton J Metcalfe Graeme Hays 2007-01-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30058358 https://figshare.com/articles/journal_contribution/Vertical_movements_of_North_Sea_Cod/20953627 unknown http://hdl.handle.net/10536/DRO/DU:30058358 https://figshare.com/articles/journal_contribution/Vertical_movements_of_North_Sea_Cod/20953627 All Rights Reserved Oceanography Ecology Zoology time-depth recorder vertical movement satellite tracking tuna shark turtle Science & Technology Life Sciences & Biomedicine Physical Sciences Marine & Freshwater Biology Environmental Sciences & Ecology DATA-STORAGE TAGS GADUS-MORHUA L ULTRASONIC TELEMETRY MIGRATION PATTERNS WHALE SHARKS BEHAVIOR ATLANTIC FISH TEMPERATURE PLAICE Text Journal contribution 2007 ftdeakinunifig 2022-11-17T21:48:06Z Various air-breathing marine vertebrates such as seals, turtles and seabirds show distinct patterns of diving behaviour. For fish, the distinction between different vertical behaviours is often less clear-cut, as there are no surface intervals to differentiate between dives. Using data from acoustic tags (n = 23) and archival depth recorders attached to cod Gadus morhua (n = 92) in the southern North Sea, we developed a quantitative method of classifying vertical movements in order to facilitate an objective comparison of the behaviour of different individuals. This method expands the utilisation of data from data storage tags, with the potential for a better understanding of fish behaviour and enhanced individual based behaviour for improved ecosystem modelling. We found that cod were closely associated with the seabed for 90% of the time, although they showed distinct seasonal and spatial patterns in behaviour. For example, cod tagged in the southern North Sea exhibited high rates of vertical movement in spring and autumn that were probably associated with migration, while the vertical movements of resident cod in other areas were much less extensive and were probably related to foraging or spawning behaviours. The full reasons underlying spatial and temporal behavioural plasticity by cod in the North Sea warrant further investigation. Other Non-Article Part of Journal/Newspaper Gadus morhua DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Oceanography Ecology Zoology time-depth recorder vertical movement satellite tracking tuna shark turtle Science & Technology Life Sciences & Biomedicine Physical Sciences Marine & Freshwater Biology Environmental Sciences & Ecology DATA-STORAGE TAGS GADUS-MORHUA L ULTRASONIC TELEMETRY MIGRATION PATTERNS WHALE SHARKS BEHAVIOR ATLANTIC FISH TEMPERATURE PLAICE |
spellingShingle |
Oceanography Ecology Zoology time-depth recorder vertical movement satellite tracking tuna shark turtle Science & Technology Life Sciences & Biomedicine Physical Sciences Marine & Freshwater Biology Environmental Sciences & Ecology DATA-STORAGE TAGS GADUS-MORHUA L ULTRASONIC TELEMETRY MIGRATION PATTERNS WHALE SHARKS BEHAVIOR ATLANTIC FISH TEMPERATURE PLAICE V Hobson D Righton J Metcalfe Graeme Hays Vertical movements of North Sea Cod |
topic_facet |
Oceanography Ecology Zoology time-depth recorder vertical movement satellite tracking tuna shark turtle Science & Technology Life Sciences & Biomedicine Physical Sciences Marine & Freshwater Biology Environmental Sciences & Ecology DATA-STORAGE TAGS GADUS-MORHUA L ULTRASONIC TELEMETRY MIGRATION PATTERNS WHALE SHARKS BEHAVIOR ATLANTIC FISH TEMPERATURE PLAICE |
description |
Various air-breathing marine vertebrates such as seals, turtles and seabirds show distinct patterns of diving behaviour. For fish, the distinction between different vertical behaviours is often less clear-cut, as there are no surface intervals to differentiate between dives. Using data from acoustic tags (n = 23) and archival depth recorders attached to cod Gadus morhua (n = 92) in the southern North Sea, we developed a quantitative method of classifying vertical movements in order to facilitate an objective comparison of the behaviour of different individuals. This method expands the utilisation of data from data storage tags, with the potential for a better understanding of fish behaviour and enhanced individual based behaviour for improved ecosystem modelling. We found that cod were closely associated with the seabed for 90% of the time, although they showed distinct seasonal and spatial patterns in behaviour. For example, cod tagged in the southern North Sea exhibited high rates of vertical movement in spring and autumn that were probably associated with migration, while the vertical movements of resident cod in other areas were much less extensive and were probably related to foraging or spawning behaviours. The full reasons underlying spatial and temporal behavioural plasticity by cod in the North Sea warrant further investigation. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
V Hobson D Righton J Metcalfe Graeme Hays |
author_facet |
V Hobson D Righton J Metcalfe Graeme Hays |
author_sort |
V Hobson |
title |
Vertical movements of North Sea Cod |
title_short |
Vertical movements of North Sea Cod |
title_full |
Vertical movements of North Sea Cod |
title_fullStr |
Vertical movements of North Sea Cod |
title_full_unstemmed |
Vertical movements of North Sea Cod |
title_sort |
vertical movements of north sea cod |
publishDate |
2007 |
url |
http://hdl.handle.net/10536/DRO/DU:30058358 https://figshare.com/articles/journal_contribution/Vertical_movements_of_North_Sea_Cod/20953627 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30058358 https://figshare.com/articles/journal_contribution/Vertical_movements_of_North_Sea_Cod/20953627 |
op_rights |
All Rights Reserved |
_version_ |
1766005346348826624 |