Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community
The spatial and temporal structure of predator-prey relationships in the Celtic Sea was investigated for 4 commercially important predator species (cod Gadus morhua, hake Merluccius merluccius, megrim Lepidorhombus whiffiagonis, and whiting Merlangius merlangus) using stomach-content and bottom-traw...
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Online Access: | https://archimer.ifremer.fr/doc/2005/publication-3619.pdf https://doi.org/10.3354/meps299257 https://archimer.ifremer.fr/doc/00000/3619/ |
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ftarchimer:oai:archimer.ifremer.fr:3619 2023-05-15T16:19:15+02:00 Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community Trenkel, Verena Pinnegar, J Dawson, W Du Buit, M Tidd, A 2005-09 application/pdf https://archimer.ifremer.fr/doc/2005/publication-3619.pdf https://doi.org/10.3354/meps299257 https://archimer.ifremer.fr/doc/00000/3619/ eng eng Inter-Research https://archimer.ifremer.fr/doc/2005/publication-3619.pdf doi:10.3354/meps299257 https://archimer.ifremer.fr/doc/00000/3619/ Inter-Research 2005 info:eu-repo/semantics/openAccess restricted use Marine Ecology Progress Series (0171-8630) (Inter-Research), 2005-09 , Vol. 299 , P. 257-268 Spatial distribution Season Celtic Sea Preference Stomach contents Diet text Publication info:eu-repo/semantics/article 2005 ftarchimer https://doi.org/10.3354/meps299257 2021-09-23T20:15:29Z The spatial and temporal structure of predator-prey relationships in the Celtic Sea was investigated for 4 commercially important predator species (cod Gadus morhua, hake Merluccius merluccius, megrim Lepidorhombus whiffiagonis, and whiting Merlangius merlangus) using stomach-content and bottom-trawl survey data for the period 1982 to 1995. Blue whiting Micromesistius poutassou were consumed more often during the summer months, whereas mackerel Scomber scombrus and Trisopterus spp. (poor cod T minutus, Norway pout T esmarkii, and bib T luscus) were found more often in predator stomachs during the winter half-year. On a spatial scale, blue whiting was consumed over the shelf edge, in accordance with their higher densities in the environment, while mackerel, horse mackerel Trachurus trachurus and Trisopterus spp. were eaten more often on the continental shelf, again in agreement with their depth-related density-distribution patterns. The spatial distribution of whiting closely matched that of a key prey, Trisopterus spp. This might indicate an 'aggregative response' by the predator. The results of this study suggest spatial and seasonal prey-switching behaviour by cod, hake and whiting. Overall, the Celtic Sea fish community is characterised by opportunistic predators and general independence between predator and prey distributions. Interspecific predator interactions are reduced by size-, space- and time-dependent feeding behaviours. Article in Journal/Newspaper Gadus morhua Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Hake ENVELOPE(15.612,15.612,66.797,66.797) Norway Marine Ecology Progress Series 299 257 268 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Spatial distribution Season Celtic Sea Preference Stomach contents Diet |
spellingShingle |
Spatial distribution Season Celtic Sea Preference Stomach contents Diet Trenkel, Verena Pinnegar, J Dawson, W Du Buit, M Tidd, A Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community |
topic_facet |
Spatial distribution Season Celtic Sea Preference Stomach contents Diet |
description |
The spatial and temporal structure of predator-prey relationships in the Celtic Sea was investigated for 4 commercially important predator species (cod Gadus morhua, hake Merluccius merluccius, megrim Lepidorhombus whiffiagonis, and whiting Merlangius merlangus) using stomach-content and bottom-trawl survey data for the period 1982 to 1995. Blue whiting Micromesistius poutassou were consumed more often during the summer months, whereas mackerel Scomber scombrus and Trisopterus spp. (poor cod T minutus, Norway pout T esmarkii, and bib T luscus) were found more often in predator stomachs during the winter half-year. On a spatial scale, blue whiting was consumed over the shelf edge, in accordance with their higher densities in the environment, while mackerel, horse mackerel Trachurus trachurus and Trisopterus spp. were eaten more often on the continental shelf, again in agreement with their depth-related density-distribution patterns. The spatial distribution of whiting closely matched that of a key prey, Trisopterus spp. This might indicate an 'aggregative response' by the predator. The results of this study suggest spatial and seasonal prey-switching behaviour by cod, hake and whiting. Overall, the Celtic Sea fish community is characterised by opportunistic predators and general independence between predator and prey distributions. Interspecific predator interactions are reduced by size-, space- and time-dependent feeding behaviours. |
format |
Article in Journal/Newspaper |
author |
Trenkel, Verena Pinnegar, J Dawson, W Du Buit, M Tidd, A |
author_facet |
Trenkel, Verena Pinnegar, J Dawson, W Du Buit, M Tidd, A |
author_sort |
Trenkel, Verena |
title |
Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community |
title_short |
Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community |
title_full |
Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community |
title_fullStr |
Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community |
title_full_unstemmed |
Spatial and temporal structure of predator-prey relationships in the Celtic Sea fish community |
title_sort |
spatial and temporal structure of predator-prey relationships in the celtic sea fish community |
publisher |
Inter-Research |
publishDate |
2005 |
url |
https://archimer.ifremer.fr/doc/2005/publication-3619.pdf https://doi.org/10.3354/meps299257 https://archimer.ifremer.fr/doc/00000/3619/ |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake Norway |
geographic_facet |
Hake Norway |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Marine Ecology Progress Series (0171-8630) (Inter-Research), 2005-09 , Vol. 299 , P. 257-268 |
op_relation |
https://archimer.ifremer.fr/doc/2005/publication-3619.pdf doi:10.3354/meps299257 https://archimer.ifremer.fr/doc/00000/3619/ |
op_rights |
Inter-Research 2005 info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.3354/meps299257 |
container_title |
Marine Ecology Progress Series |
container_volume |
299 |
container_start_page |
257 |
op_container_end_page |
268 |
_version_ |
1766005607224049664 |