Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast

Assessing the effects of fishing activity and environmental variability on fishing species might help to understand their fluctuations and to manage them accordingly. However, despite the increasing number of studies linking fisheries and environmental data, few had a multi-species approach consider...

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Published in:Frontiers in Marine Science
Main Authors: Vânia Baptista, Ignacio Pérez Blasco, Juan Bueno-Pardo, Maria Alexandra Teodósio, Francisco Leitão
Format: Article in Journal/Newspaper
Language:English
Published: Frontiers Media S.A. 2022
Subjects:
Q
Online Access:https://doi.org/10.3389/fmars.2022.844158
https://doaj.org/article/cf4117a0dda94232b7d1f0db797064b7
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spelling ftdoajarticles:oai:doaj.org/article:cf4117a0dda94232b7d1f0db797064b7 2023-05-15T17:35:45+02:00 Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast Vânia Baptista Ignacio Pérez Blasco Juan Bueno-Pardo Maria Alexandra Teodósio Francisco Leitão 2022-09-01T00:00:00Z https://doi.org/10.3389/fmars.2022.844158 https://doaj.org/article/cf4117a0dda94232b7d1f0db797064b7 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.844158/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.844158 https://doaj.org/article/cf4117a0dda94232b7d1f0db797064b7 Frontiers in Marine Science, Vol 9 (2022) Pleuronectiformes environmental pressure recruitment time-series analyses multi-model approach Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.844158 2022-12-31T00:10:02Z Assessing the effects of fishing activity and environmental variability on fishing species might help to understand their fluctuations and to manage them accordingly. However, despite the increasing number of studies linking fisheries and environmental data, few had a multi-species approach considering flatfish species and different age groups. Therefore, this study aims to determine the effects of environmental and fishing related variables on commercial flatfish species across different regions of the Portuguese coast. For that, sea surface temperature, North Atlantic Oscillation, upwelling index, wind components, river discharges and fishing effort were related to landings per unit effort (LPUE) of five commercial flatfish species (Pleuronectes platessa, Dicologlossa cuneata, Microchirus spp., Solea lascaris, and Solea solea) fished by the artisanal fleet along different regions of Portuguese coast (Northwestern coast, Southwestern coast, and Southern coast), using a multi-model statistical approach from 1989 to 2009. The fishing effort had the same effect along the life cycle and was negatively related with LPUE trends for most of the species. Regarding to environmental variability, during early phases (larval to juvenile – age-group-0) the factors that affected the recruitment, in addition to being related to the physiological needs (e.g., sea surface temperature) of individuals that will trigger growth and survival, were related to larval transport and dispersion from offshore spawning areas to coastal nursery habitats beyond (e.g., wind components and upwelling). For juvenile and young-adult phases (age-groups I and II), the effects of environmental variability appeared to be linked to physiological needs important for growth and maturation (e.g., temperature). Concluding, different effects were observed depending on the region, species, and life-cycle phase. Therefore, these environmental-fishing relationships should be used when managing local fishing resources. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 9
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Pleuronectiformes
environmental pressure
recruitment
time-series analyses
multi-model approach
Science
Q
General. Including nature conservation
geographical distribution
QH1-199.5
spellingShingle Pleuronectiformes
environmental pressure
recruitment
time-series analyses
multi-model approach
Science
Q
General. Including nature conservation
geographical distribution
QH1-199.5
Vânia Baptista
Ignacio Pérez Blasco
Juan Bueno-Pardo
Maria Alexandra Teodósio
Francisco Leitão
Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast
topic_facet Pleuronectiformes
environmental pressure
recruitment
time-series analyses
multi-model approach
Science
Q
General. Including nature conservation
geographical distribution
QH1-199.5
description Assessing the effects of fishing activity and environmental variability on fishing species might help to understand their fluctuations and to manage them accordingly. However, despite the increasing number of studies linking fisheries and environmental data, few had a multi-species approach considering flatfish species and different age groups. Therefore, this study aims to determine the effects of environmental and fishing related variables on commercial flatfish species across different regions of the Portuguese coast. For that, sea surface temperature, North Atlantic Oscillation, upwelling index, wind components, river discharges and fishing effort were related to landings per unit effort (LPUE) of five commercial flatfish species (Pleuronectes platessa, Dicologlossa cuneata, Microchirus spp., Solea lascaris, and Solea solea) fished by the artisanal fleet along different regions of Portuguese coast (Northwestern coast, Southwestern coast, and Southern coast), using a multi-model statistical approach from 1989 to 2009. The fishing effort had the same effect along the life cycle and was negatively related with LPUE trends for most of the species. Regarding to environmental variability, during early phases (larval to juvenile – age-group-0) the factors that affected the recruitment, in addition to being related to the physiological needs (e.g., sea surface temperature) of individuals that will trigger growth and survival, were related to larval transport and dispersion from offshore spawning areas to coastal nursery habitats beyond (e.g., wind components and upwelling). For juvenile and young-adult phases (age-groups I and II), the effects of environmental variability appeared to be linked to physiological needs important for growth and maturation (e.g., temperature). Concluding, different effects were observed depending on the region, species, and life-cycle phase. Therefore, these environmental-fishing relationships should be used when managing local fishing resources.
format Article in Journal/Newspaper
author Vânia Baptista
Ignacio Pérez Blasco
Juan Bueno-Pardo
Maria Alexandra Teodósio
Francisco Leitão
author_facet Vânia Baptista
Ignacio Pérez Blasco
Juan Bueno-Pardo
Maria Alexandra Teodósio
Francisco Leitão
author_sort Vânia Baptista
title Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast
title_short Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast
title_full Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast
title_fullStr Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast
title_full_unstemmed Environmental variability and fishing effects on artisanal flatfish fisheries along the Portuguese coast
title_sort environmental variability and fishing effects on artisanal flatfish fisheries along the portuguese coast
publisher Frontiers Media S.A.
publishDate 2022
url https://doi.org/10.3389/fmars.2022.844158
https://doaj.org/article/cf4117a0dda94232b7d1f0db797064b7
genre North Atlantic
North Atlantic oscillation
genre_facet North Atlantic
North Atlantic oscillation
op_source Frontiers in Marine Science, Vol 9 (2022)
op_relation https://www.frontiersin.org/articles/10.3389/fmars.2022.844158/full
https://doaj.org/toc/2296-7745
2296-7745
doi:10.3389/fmars.2022.844158
https://doaj.org/article/cf4117a0dda94232b7d1f0db797064b7
op_doi https://doi.org/10.3389/fmars.2022.844158
container_title Frontiers in Marine Science
container_volume 9
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