Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies
Atlantic minke whales are important predators in the Barents Sea ecosystem; capelin Mallotus villosus, krill Thysanoessa sp. and Meganyctephanes norvegica and herring Clupea harengus are their major prey. Their consumption of commercial species may present an economic problem for the local fishery....
Published in: | Marine Ecology Progress Series |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2007
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/multispecies-functional-response-of-theminke-whale-balaenoptera-acutorostratabased-onsmallscale-foraging-studies(fa440d9e-3e95-429b-8edd-1fec62981b4a).html https://doi.org/10.3354/meps341277 https://research-repository.st-andrews.ac.uk/bitstream/10023/3345/1/m341p277.pdf http://www.scopus.com/inward/record.url?scp=34547603630&partnerID=8YFLogxK |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/fa440d9e-3e95-429b-8edd-1fec62981b4a 2023-05-15T15:36:10+02:00 Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies Smout, Sophie Caroline Lindstrom, Ulf 2007-07 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/multispecies-functional-response-of-theminke-whale-balaenoptera-acutorostratabased-onsmallscale-foraging-studies(fa440d9e-3e95-429b-8edd-1fec62981b4a).html https://doi.org/10.3354/meps341277 https://research-repository.st-andrews.ac.uk/bitstream/10023/3345/1/m341p277.pdf http://www.scopus.com/inward/record.url?scp=34547603630&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Smout , S C & Lindstrom , U 2007 , ' Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies ' , Marine Ecology Progress Series , vol. 341 , pp. 277-291 . https://doi.org/10.3354/meps341277 Functional response Generalist predator Minke whale Baleonoptera acutorostrata Barents Sea Northeast Atlantic Ecosystem Coexistence Management Abundance Fisheries Prey Food Determinants article 2007 ftunstandrewcris https://doi.org/10.3354/meps341277 2021-12-26T14:14:20Z Atlantic minke whales are important predators in the Barents Sea ecosystem; capelin Mallotus villosus, krill Thysanoessa sp. and Meganyctephanes norvegica and herring Clupea harengus are their major prey. Their consumption of commercial species may present an economic problem for the local fishery. In order to estimate this consumption and understand the potential consequences for prey dynamics, it is essential to determine the multispecies functional response of the whales. The parameterisation of a functional response requires measurements of consumption rates and prey availability. In this localised study, undigested stomach contents were used to assess the amount of each prey that had been consumed immediately prior to capture. To determine the availability of prey to the whales, standard acoustic surveys were run in the same area within 2 d of the capture of the whales. The spatial distribution of prey was modelled using generalised additive models (GAMs). In order to generate a measure of prey availability and the uncertainty in this value, a simple model was assumed for whale movement, and prey abundance was sampled over space according to a Gaussian kernel. A multispecies functional response (MSFR) model was then fitted to the consumption and prey availability data using Bayesian methods. Simple simulations, based on the fitted MSFR, indicate that minke whales may deplete local capelin aggregations at small spatial scales. This is the first time that a multispecies functional response has been fitted for a cetacean predator, and the methods outlined here may prove useful for modelling marine mammal-fish interactions in other systems. Article in Journal/Newspaper Balaenoptera acutorostrata Barents Sea minke whale Northeast Atlantic University of St Andrews: Research Portal Barents Sea Marine Ecology Progress Series 341 277 291 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Functional response Generalist predator Minke whale Baleonoptera acutorostrata Barents Sea Northeast Atlantic Ecosystem Coexistence Management Abundance Fisheries Prey Food Determinants |
spellingShingle |
Functional response Generalist predator Minke whale Baleonoptera acutorostrata Barents Sea Northeast Atlantic Ecosystem Coexistence Management Abundance Fisheries Prey Food Determinants Smout, Sophie Caroline Lindstrom, Ulf Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies |
topic_facet |
Functional response Generalist predator Minke whale Baleonoptera acutorostrata Barents Sea Northeast Atlantic Ecosystem Coexistence Management Abundance Fisheries Prey Food Determinants |
description |
Atlantic minke whales are important predators in the Barents Sea ecosystem; capelin Mallotus villosus, krill Thysanoessa sp. and Meganyctephanes norvegica and herring Clupea harengus are their major prey. Their consumption of commercial species may present an economic problem for the local fishery. In order to estimate this consumption and understand the potential consequences for prey dynamics, it is essential to determine the multispecies functional response of the whales. The parameterisation of a functional response requires measurements of consumption rates and prey availability. In this localised study, undigested stomach contents were used to assess the amount of each prey that had been consumed immediately prior to capture. To determine the availability of prey to the whales, standard acoustic surveys were run in the same area within 2 d of the capture of the whales. The spatial distribution of prey was modelled using generalised additive models (GAMs). In order to generate a measure of prey availability and the uncertainty in this value, a simple model was assumed for whale movement, and prey abundance was sampled over space according to a Gaussian kernel. A multispecies functional response (MSFR) model was then fitted to the consumption and prey availability data using Bayesian methods. Simple simulations, based on the fitted MSFR, indicate that minke whales may deplete local capelin aggregations at small spatial scales. This is the first time that a multispecies functional response has been fitted for a cetacean predator, and the methods outlined here may prove useful for modelling marine mammal-fish interactions in other systems. |
format |
Article in Journal/Newspaper |
author |
Smout, Sophie Caroline Lindstrom, Ulf |
author_facet |
Smout, Sophie Caroline Lindstrom, Ulf |
author_sort |
Smout, Sophie Caroline |
title |
Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies |
title_short |
Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies |
title_full |
Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies |
title_fullStr |
Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies |
title_full_unstemmed |
Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies |
title_sort |
multispecies functional response of the minke whale balaenoptera acutorostrata based on small-scale foraging studies |
publishDate |
2007 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/multispecies-functional-response-of-theminke-whale-balaenoptera-acutorostratabased-onsmallscale-foraging-studies(fa440d9e-3e95-429b-8edd-1fec62981b4a).html https://doi.org/10.3354/meps341277 https://research-repository.st-andrews.ac.uk/bitstream/10023/3345/1/m341p277.pdf http://www.scopus.com/inward/record.url?scp=34547603630&partnerID=8YFLogxK |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Balaenoptera acutorostrata Barents Sea minke whale Northeast Atlantic |
genre_facet |
Balaenoptera acutorostrata Barents Sea minke whale Northeast Atlantic |
op_source |
Smout , S C & Lindstrom , U 2007 , ' Multispecies functional response of the minke whale Balaenoptera acutorostrata based on small-scale foraging studies ' , Marine Ecology Progress Series , vol. 341 , pp. 277-291 . https://doi.org/10.3354/meps341277 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps341277 |
container_title |
Marine Ecology Progress Series |
container_volume |
341 |
container_start_page |
277 |
op_container_end_page |
291 |
_version_ |
1766366503800668160 |