Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species
Bottom trawling can change food availability for benthivorous demersal species by (i) changing benthic prey composition through physical seabed impacts and (ii) by removing overall benthic consumer biomass increasing the net availability of benthic prey for remaining individuals. Thus trawling may b...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/10508/11063 http://hdl.handle.net/10261/317687 https://doi.org/10.1038/s41598-017-06379-6 |
id |
ftcsic:oai:digital.csic.es:10261/317687 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/317687 2024-02-11T10:06:30+01:00 Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species Hinz, Hilmar Moranta, Joan Balestrini, Stephen Sciberras, Marija Pantin, J.R. Monnington, James Zalewski, Alex Kaiser, M.J. Sköld, Mattias Jonsson, Patrik Bastardie, Francois Hiddink, Jan Geert North Atlantic 2017-07-24 http://hdl.handle.net/10508/11063 http://hdl.handle.net/10261/317687 https://doi.org/10.1038/s41598-017-06379-6 en eng #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/312088; info:eu-repo/grantAgreement/EC/FP7/227799; Marie Curie Fellowship LINKFISH (299552); Ramón y Cajal Fellowship (grant by the Ministerio de Economía y Competitividad de España and the Conselleria d’Educació, Cultura i Universitats Comunidad Autónoma de las Islas Baleares); Swedish Research Council FORMAS (grant 2012–942) Centro Oceanográfico de Baleares VoR http://www.nature.com/articles/s41598-017-06379-6 Scientific Reports, 7(6334). 2017: 1-12 http://hdl.handle.net/10508/11063 http://hdl.handle.net/10261/317687 doi:10.1038/s41598-017-06379-6 open Ecosystem ecology Centro Oceanográfico de Baleares Pesquerías Food webs Ichthyology Marine biology Stable isotope analysis Fishes Isotopes Food availability Ocean floor Bottom trawling research article 2017 ftcsic https://doi.org/10.1038/s41598-017-06379-6 2024-01-16T11:44:50Z Bottom trawling can change food availability for benthivorous demersal species by (i) changing benthic prey composition through physical seabed impacts and (ii) by removing overall benthic consumer biomass increasing the net availability of benthic prey for remaining individuals. Thus trawling may both negatively and positively influence the quantity and quality of food available. Using δ13C and δ15N we investigated potential diet changes of three commercially exploited species across trawling gradients in the Kattegat (plaice, dab and Norway lobster (Nephrops)) and the Irish Sea (Nephrops). In the Kattegat, trawling affected primarily the biomass of benthic consumers, lowering competition. Nephrops showed significant positive relationships for δ13C and a domed relationship for δ15N with trawling. In the Irish Sea, intense trawling had a negative effect on benthic prey. δ13C and δ15N thus showed the inverse relationships to those observed in the Kattegat. Plaice from the Kattegat, showed a significant relationship with trawling intensity for δ13C, but not for δ15N. No relationship was found for dab. Changes of δ13C and δ15N correlated with changes in condition of species. The results show that the removal of demersal competitors and benthos by trawling can change the diets of commercial species, ultimately affecting their body condition SI Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Norway Scientific Reports 7 1 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Ecosystem ecology Centro Oceanográfico de Baleares Pesquerías Food webs Ichthyology Marine biology Stable isotope analysis Fishes Isotopes Food availability Ocean floor Bottom trawling |
spellingShingle |
Ecosystem ecology Centro Oceanográfico de Baleares Pesquerías Food webs Ichthyology Marine biology Stable isotope analysis Fishes Isotopes Food availability Ocean floor Bottom trawling Hinz, Hilmar Moranta, Joan Balestrini, Stephen Sciberras, Marija Pantin, J.R. Monnington, James Zalewski, Alex Kaiser, M.J. Sköld, Mattias Jonsson, Patrik Bastardie, Francois Hiddink, Jan Geert Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
topic_facet |
Ecosystem ecology Centro Oceanográfico de Baleares Pesquerías Food webs Ichthyology Marine biology Stable isotope analysis Fishes Isotopes Food availability Ocean floor Bottom trawling |
description |
Bottom trawling can change food availability for benthivorous demersal species by (i) changing benthic prey composition through physical seabed impacts and (ii) by removing overall benthic consumer biomass increasing the net availability of benthic prey for remaining individuals. Thus trawling may both negatively and positively influence the quantity and quality of food available. Using δ13C and δ15N we investigated potential diet changes of three commercially exploited species across trawling gradients in the Kattegat (plaice, dab and Norway lobster (Nephrops)) and the Irish Sea (Nephrops). In the Kattegat, trawling affected primarily the biomass of benthic consumers, lowering competition. Nephrops showed significant positive relationships for δ13C and a domed relationship for δ15N with trawling. In the Irish Sea, intense trawling had a negative effect on benthic prey. δ13C and δ15N thus showed the inverse relationships to those observed in the Kattegat. Plaice from the Kattegat, showed a significant relationship with trawling intensity for δ13C, but not for δ15N. No relationship was found for dab. Changes of δ13C and δ15N correlated with changes in condition of species. The results show that the removal of demersal competitors and benthos by trawling can change the diets of commercial species, ultimately affecting their body condition SI |
format |
Article in Journal/Newspaper |
author |
Hinz, Hilmar Moranta, Joan Balestrini, Stephen Sciberras, Marija Pantin, J.R. Monnington, James Zalewski, Alex Kaiser, M.J. Sköld, Mattias Jonsson, Patrik Bastardie, Francois Hiddink, Jan Geert |
author_facet |
Hinz, Hilmar Moranta, Joan Balestrini, Stephen Sciberras, Marija Pantin, J.R. Monnington, James Zalewski, Alex Kaiser, M.J. Sköld, Mattias Jonsson, Patrik Bastardie, Francois Hiddink, Jan Geert |
author_sort |
Hinz, Hilmar |
title |
Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
title_short |
Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
title_full |
Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
title_fullStr |
Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
title_full_unstemmed |
Stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
title_sort |
stable isotopes reveal the effect of trawl fisheries on the diet of commercially exploited species |
publishDate |
2017 |
url |
http://hdl.handle.net/10508/11063 http://hdl.handle.net/10261/317687 https://doi.org/10.1038/s41598-017-06379-6 |
op_coverage |
North Atlantic |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Kattegat Norway |
geographic_facet |
Kattegat Norway |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/312088; info:eu-repo/grantAgreement/EC/FP7/227799; Marie Curie Fellowship LINKFISH (299552); Ramón y Cajal Fellowship (grant by the Ministerio de Economía y Competitividad de España and the Conselleria d’Educació, Cultura i Universitats Comunidad Autónoma de las Islas Baleares); Swedish Research Council FORMAS (grant 2012–942) Centro Oceanográfico de Baleares VoR http://www.nature.com/articles/s41598-017-06379-6 Scientific Reports, 7(6334). 2017: 1-12 http://hdl.handle.net/10508/11063 http://hdl.handle.net/10261/317687 doi:10.1038/s41598-017-06379-6 |
op_rights |
open |
op_doi |
https://doi.org/10.1038/s41598-017-06379-6 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1790604256169951232 |