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dc.contributor.authorPierucci, Andrea
dc.contributor.authorNguyen Xuan, Alessandra
dc.contributor.authorDi Lorenzo, Bianca
dc.contributor.authorBradshaw, Clare
dc.contributor.authorGarcia, Clement
dc.contributor.authorMangano, Cristina
dc.contributor.authorVina-Herbon, Cristina
dc.contributor.authorSmith, Chris
dc.contributor.authorCuyvers, Daan
dc.contributor.authorvan Denderen, Daniel
dc.contributor.authorClare, David
dc.contributor.authorPunzo, Elisa
dc.contributor.authorDi Bona, Gabriele
dc.contributor.authorVan Hoey, Gert
dc.contributor.authorRava, Giada
dc.contributor.authorTsikopoulou, Irini
dc.contributor.authorGeert Hiddink, Jan
dc.contributor.authorDepestele, Jochen
dc.contributor.authorDesmidt, Joanna
dc.contributor.authorClaes, Jolien
dc.contributor.authorTiano, Justin
dc.contributor.authorSoetaert, Karline
dc.contributor.authorMorris, Kate
dc.contributor.authorBuhl-Mortensen, Lene
dc.contributor.authorNicoletti, Luisa
dc.contributor.authorPorz, Lucas
dc.contributor.authorBatts, Luke
dc.contributor.authorFenton, Mairi
dc.contributor.authorSköld, Mattias
dc.contributor.authorPenna, Marina
dc.contributor.authorPulcini, Marina
dc.contributor.authorRufino, Marta Mega
dc.contributor.authorSciberras, Marija
dc.contributor.authorBlomqvist, Mats
dc.contributor.authorPapadopoulou, Nadia
dc.contributor.authorMcCann, Neve
dc.contributor.authorBeauchard, Olivier
dc.contributor.authorLaffargue, Pascal
dc.contributor.authorColeman, Paul
dc.contributor.authorParker, Ruth
dc.contributor.authorVaz, Sandrine
dc.contributor.authorValanko, Sebastian
dc.contributor.authorVandevelde, Sebastiaan
dc.contributor.authorBolam, Stefan
dc.contributor.authorVan Kooten, Tobias
dc.contributor.authorZhang, Wenyan
dc.contributor.editorGeert Hiddink, Jan
dc.contributor.editorvan Hoe, Gert
dc.contributor.editorSciberras, Marija
dc.coverage.spatialMediterranean Seaen_US
dc.coverage.spatialNorth Seaen_US
dc.coverage.spatialCeltic Seaen_US
dc.coverage.spatialKattegaten_US
dc.coverage.spatialBaltic Seaen_US
dc.date.accessioned2023-02-24T19:05:57Z
dc.date.available2023-02-24T19:05:57Z
dc.date.issued2023-02-20
dc.identifier.doihttps://doi.org/10.17895/ices.pub.22123193.v1
dc.identifier.urihttp://hdl.handle.net/1834/42518
dc.description.abstractThe Working Group on Fisheries Benthic Impact and Trade-offs (WGFBIT) develops methods and performs assessments to evaluate benthic impact from fisheries at regional scale, while con- sidering fisheries and seabed impact trade-offs. In this report, new fishery benthic impact assessments (ToR A) are shown out for several sub- regions in (French Mediterranean, Celtic Seas). For other regions, updates of the whole assess- ment or specific steps only were presented. To further standardise the different components of the WGFBIT approach across all (sub-)re- gional assessments, a more detail overview of those components was compiled. These compo- nents were slightly different among those regions, related to variation in data availability, envi- ronmental characteristics and implementation possibilities among the (sub-)regions. In WGFBIT, assessments are sometimes based on trawl or grab data, which are sampling differ- ent components of the seafloor ecosystem and can have consequences on the created sensitivity layer. Therefore, there is looked in more detail how the sensitivity outcome (and layers) can dif- fer due to the use of benthic data gathered with different gears (grab/core, trawl or video). The preliminary comparability analyses are performed on different levels: (1) based on co-located sampling; (2) comparing sensitivity maps of the (sub-) area, based on different gears. There were differences observed in longevity distribution at locations sampled with different gears and dif- ferences in data and models lead also to differences in the sensitivity layers. The WGFBIT seafloor assessment framework is not the only way to assess benthic impacts from physical disturbance. A discussion session was held on how the future workflow on advice that ICES WGFBIT assessment contribute to, will be organized. Marine sediments harbour significant levels of biodiversity that play a key role in ecosystem functions and services such as biogeochemical cycling, carbon storage and the regulation of cli- mate. Through the removal of fauna, changes in physico-chemical nature and resuspension of sediment, bottom trawling may result in significant changes in the ecosystem functioning of shelf seas. An assumption of the current PD model is that high community biomass implies higher ecosystem functioning. However, total community biomass does not necessarily reflect changes in species and functional trait composition which play a key role in regulating ecosystem func- tions. ToR D is working on an improved understanding of the link between species functional effect traits and proxies and processes for specific ecosystem functions to improve our ability to predict the impact of fishing disturbance on benthic ecosystem functioning more accurately. Links between species traits and biogeochemical parameters and the impact of trawling on these links are being explored using multivariate ordination analyses using different fauna and bioge- ochemical datasets collected in the North Sea, Celtic Sea, Kattegat, Baltic Sea and the eastern Mediterranean. Changes due to trawling in the trajectories of species densities over time and the concurrent changes in the bioturbation and bioirrigation potential of communities are being modelled using a combination of data-driven mechanistic model and a biogeochemical model. We report on the different data analysis methods that ToR D members have developed over the last year.
dc.description.sponsorshipICESen_US
dc.language.isoenen_US
dc.publisherInternational Council for the Exploration of the Sea (ICES)en_US
dc.relation.ispartofseriesICES Scientific Reports ;5: 16
dc.relation.urihttps://ices-library.figshare.com/articles/report/Working_Group_on_Fisheries_Benthic_Impact_and_Trade-offs_WGFBIT_/22123193en_US
dc.rightsCreative Commons Attribution 4.0 International License*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subject.otherWGFBITen_US
dc.subject.otherFishery Benthic Impacten_US
dc.subject.otherBenthic Impacten_US
dc.subject.otherHuman impacten_US
dc.subject.otherFishery managementen_US
dc.subject.otherBenthosen_US
dc.subject.otherSeabed ecoystemen_US
dc.titleICES (2023): Working Group on Fisheries Benthic Impact and Trade-offs (WGFBIT).en_US
dc.title.alternativeWorking Group on Fisheries Benthic Impact and Trade-offs (WGFBIT).
dc.typeReporten_US
dc.contributor.corpauthorInternational Council for the Exploration of the Sea (ICES)
dc.description.statusPublisheden_US
dc.format.pages112pp.en_US
dc.publisher.placeCopenhagen, Denmarken_US
refterms.dateFOA2023-02-24T19:05:59Z
html.description.abstractThe Working Group on Fisheries Benthic Impact and Trade-offs (WGFBIT) develops methods and performs assessments to evaluate benthic impact from fisheries at regional scale, while con- sidering fisheries and seabed impact trade-offs. In this report, new fishery benthic impact assessments (ToR A) are shown out for several sub- regions in (French Mediterranean, Celtic Seas). For other regions, updates of the whole assess- ment or specific steps only were presented. To further standardise the different components of the WGFBIT approach across all (sub-)re- gional assessments, a more detail overview of those components was compiled. These compo- nents were slightly different among those regions, related to variation in data availability, envi- ronmental characteristics and implementation possibilities among the (sub-)regions. In WGFBIT, assessments are sometimes based on trawl or grab data, which are sampling differ- ent components of the seafloor ecosystem and can have consequences on the created sensitivity layer. Therefore, there is looked in more detail how the sensitivity outcome (and layers) can dif- fer due to the use of benthic data gathered with different gears (grab/core, trawl or video). The preliminary comparability analyses are performed on different levels: (1) based on co-located sampling; (2) comparing sensitivity maps of the (sub-) area, based on different gears. There were differences observed in longevity distribution at locations sampled with different gears and dif- ferences in data and models lead also to differences in the sensitivity layers. The WGFBIT seafloor assessment framework is not the only way to assess benthic impacts from physical disturbance. A discussion session was held on how the future workflow on advice that ICES WGFBIT assessment contribute to, will be organized. Marine sediments harbour significant levels of biodiversity that play a key role in ecosystem functions and services such as biogeochemical cycling, carbon storage and the regulation of cli- mate. Through the removal of fauna, changes in physico-chemical nature and resuspension of sediment, bottom trawling may result in significant changes in the ecosystem functioning of shelf seas. An assumption of the current PD model is that high community biomass implies higher ecosystem functioning. However, total community biomass does not necessarily reflect changes in species and functional trait composition which play a key role in regulating ecosystem func- tions. ToR D is working on an improved understanding of the link between species functional effect traits and proxies and processes for specific ecosystem functions to improve our ability to predict the impact of fishing disturbance on benthic ecosystem functioning more accurately. Links between species traits and biogeochemical parameters and the impact of trawling on these links are being explored using multivariate ordination analyses using different fauna and bioge- ochemical datasets collected in the North Sea, Celtic Sea, Kattegat, Baltic Sea and the eastern Mediterranean. Changes due to trawling in the trajectories of species densities over time and the concurrent changes in the bioturbation and bioirrigation potential of communities are being modelled using a combination of data-driven mechanistic model and a biogeochemical model. We report on the different data analysis methods that ToR D members have developed over the last year.en_US
dc.description.refereedRefereeden_US


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