A length-based hypothesis for feeding migrations in pelagic fish
We evaluated the costs and benefits of long-distance horizontal migration by pelagic planktivores, Atlantic herring (Clupea harengus), blue whiting (Micromesistius poutassou), mackerel (Scomber scombrus), and capelin (Mallotus villosus) in the Norwegian and Barents seas using a numerical model and t...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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1999
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Online Access: | http://hdl.handle.net/11250/108197 https://doi.org/10.1139/f99-222 |
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ftimr:oai:imr.brage.unit.no:11250/108197 2023-05-15T17:25:14+02:00 A length-based hypothesis for feeding migrations in pelagic fish Nøttestad, Leif Giske, Jarl Holst, Jens Christian Huse, Geir 1999 396126 bytes application/pdf http://hdl.handle.net/11250/108197 https://doi.org/10.1139/f99-222 eng eng urn:issn:0706-652X http://hdl.handle.net/11250/108197 http://dx.doi.org/10.1139/f99-222 26-34 56 Canadian Journal of Fisheries and Aquatic Sciences Suppl. 1 Norwegian Sea herring sild blue whiting kolmule mackerel makrell capelin lodde fish migration vandringer Norskehavet Journal article Peer reviewed 1999 ftimr https://doi.org/10.1139/f99-222 2021-09-23T20:14:42Z We evaluated the costs and benefits of long-distance horizontal migration by pelagic planktivores, Atlantic herring (Clupea harengus), blue whiting (Micromesistius poutassou), mackerel (Scomber scombrus), and capelin (Mallotus villosus) in the Norwegian and Barents seas using a numerical model and tested model predictions against field observations. Specifically, we considered (i) energetic costs as a function of body size, water currents, swimming speed, and distance, (ii) time costs as a function of speed and distance, and (iii) energetic gain in terms of differences in food intake between areas. The model demonstrates how body size restricts large-scale horizontal migration patterns. Model and field results suggest that the extent of migration will increase with increasing body length. The model predicts that long-distance migration costs may exceed energy intake for fish <20 cm, due to increased hydrodynamical drag with decreasing fish size. Field results suggest that migration distance is a function of length, weight, and age. Food abundance and distribution, current speed and direction, and differences in day length at boreal latitudes are believed to be the major driving forces influencing large-scale migration distance, direction, and timing in pelagic planktivores. Northwards latitudinal rather than longitudinal feeding migrations are explained by the improved feeding opportunities with increased day lengths. Article in Journal/Newspaper Norskehav* Norwegian Sea Institute for Marine Research: Brage IMR Norwegian Sea Canadian Journal of Fisheries and Aquatic Sciences 56 S1 26 34 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
Norwegian Sea herring sild blue whiting kolmule mackerel makrell capelin lodde fish migration vandringer Norskehavet |
spellingShingle |
Norwegian Sea herring sild blue whiting kolmule mackerel makrell capelin lodde fish migration vandringer Norskehavet Nøttestad, Leif Giske, Jarl Holst, Jens Christian Huse, Geir A length-based hypothesis for feeding migrations in pelagic fish |
topic_facet |
Norwegian Sea herring sild blue whiting kolmule mackerel makrell capelin lodde fish migration vandringer Norskehavet |
description |
We evaluated the costs and benefits of long-distance horizontal migration by pelagic planktivores, Atlantic herring (Clupea harengus), blue whiting (Micromesistius poutassou), mackerel (Scomber scombrus), and capelin (Mallotus villosus) in the Norwegian and Barents seas using a numerical model and tested model predictions against field observations. Specifically, we considered (i) energetic costs as a function of body size, water currents, swimming speed, and distance, (ii) time costs as a function of speed and distance, and (iii) energetic gain in terms of differences in food intake between areas. The model demonstrates how body size restricts large-scale horizontal migration patterns. Model and field results suggest that the extent of migration will increase with increasing body length. The model predicts that long-distance migration costs may exceed energy intake for fish <20 cm, due to increased hydrodynamical drag with decreasing fish size. Field results suggest that migration distance is a function of length, weight, and age. Food abundance and distribution, current speed and direction, and differences in day length at boreal latitudes are believed to be the major driving forces influencing large-scale migration distance, direction, and timing in pelagic planktivores. Northwards latitudinal rather than longitudinal feeding migrations are explained by the improved feeding opportunities with increased day lengths. |
format |
Article in Journal/Newspaper |
author |
Nøttestad, Leif Giske, Jarl Holst, Jens Christian Huse, Geir |
author_facet |
Nøttestad, Leif Giske, Jarl Holst, Jens Christian Huse, Geir |
author_sort |
Nøttestad, Leif |
title |
A length-based hypothesis for feeding migrations in pelagic fish |
title_short |
A length-based hypothesis for feeding migrations in pelagic fish |
title_full |
A length-based hypothesis for feeding migrations in pelagic fish |
title_fullStr |
A length-based hypothesis for feeding migrations in pelagic fish |
title_full_unstemmed |
A length-based hypothesis for feeding migrations in pelagic fish |
title_sort |
length-based hypothesis for feeding migrations in pelagic fish |
publishDate |
1999 |
url |
http://hdl.handle.net/11250/108197 https://doi.org/10.1139/f99-222 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Norskehav* Norwegian Sea |
genre_facet |
Norskehav* Norwegian Sea |
op_source |
26-34 56 Canadian Journal of Fisheries and Aquatic Sciences Suppl. 1 |
op_relation |
urn:issn:0706-652X http://hdl.handle.net/11250/108197 http://dx.doi.org/10.1139/f99-222 |
op_doi |
https://doi.org/10.1139/f99-222 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
56 |
container_issue |
S1 |
container_start_page |
26 |
op_container_end_page |
34 |
_version_ |
1766116611122528256 |