Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area
Climate changes affect marine ecosystems and the survival, growth, reproduction and distribution of species, including those targeted by commercial fisheries. The impact of climate change has been reported for many fish species, but studies focusing on the effects of climate on bivalve resources are...
Published in: | Estuaries and Coasts |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Verlag
2014
|
Subjects: | |
Online Access: | http://hdl.handle.net/10400.1/8888 https://doi.org/10.1007/s12237-013-9658-4 |
id |
ftunivalgarve:oai:sapientia.ualg.pt:10400.1/8888 |
---|---|
record_format |
openpolar |
spelling |
ftunivalgarve:oai:sapientia.ualg.pt:10400.1/8888 2023-05-15T17:34:47+02:00 Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area Vânia, Baptista Ullah, Hadayet Teixeira, Célia M. Range, Pedro Erzini, Karim Leitão, Francisco 2014-01 http://hdl.handle.net/10400.1/8888 https://doi.org/10.1007/s12237-013-9658-4 eng eng Springer Verlag WOS:000330588000014 1559-2723 AUT: KER00534; http://hdl.handle.net/10400.1/8888 doi:10.1007/s12237-013-9658-4 restrictedAccess article 2014 ftunivalgarve https://doi.org/10.1007/s12237-013-9658-4 2022-05-30T08:47:22Z Climate changes affect marine ecosystems and the survival, growth, reproduction and distribution of species, including those targeted by commercial fisheries. The impact of climate change has been reported for many fish species, but studies focusing on the effects of climate on bivalve resources are lacking. In Portugal, the harvesting of bivalves is an old and artisanal activity, of special importance along the Algarve coast (South of Portugal). This study aims to evaluate the influence of climatic, environmental and fisheries factors on the landings of intertidal coastal lagoon and coastal bivalve species (subtidal nearshore species). The environmental and fisheries parameters considered to affect the landings of bivalves in the eastern Algarve were: fishing effort (number of fishing events), sea surface temperature, North Atlantic Oscillation (NAO) index, upwelling index, wind magnitude and direction and river discharges. Analysis of time series data using min/max autocorrelation factor analysis and dynamic factor analysis showed that, for most species, fishing effort was positively related with landings per unit effort trends in the following year. Lagoon bivalve species (Cerastoderma edule and Ruditapes decussatus) responded to different environmental variables than the coastal bivalve species (Chamelea gallina, Pharus legumen, Donax spp. and Spisula solida). Upwelling index had a significant effect on the lagoon bivalves while the NAO index, wind magnitude and direction, and river discharges only affected the coastal species. This study highlighted the need to adapt fishing effort regimes, while considering the background effects of environmental variability, in order to improve fisheries management. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Universidade do Algarve: Sapienta Estuaries and Coasts 37 1 191 205 |
institution |
Open Polar |
collection |
Universidade do Algarve: Sapienta |
op_collection_id |
ftunivalgarve |
language |
English |
description |
Climate changes affect marine ecosystems and the survival, growth, reproduction and distribution of species, including those targeted by commercial fisheries. The impact of climate change has been reported for many fish species, but studies focusing on the effects of climate on bivalve resources are lacking. In Portugal, the harvesting of bivalves is an old and artisanal activity, of special importance along the Algarve coast (South of Portugal). This study aims to evaluate the influence of climatic, environmental and fisheries factors on the landings of intertidal coastal lagoon and coastal bivalve species (subtidal nearshore species). The environmental and fisheries parameters considered to affect the landings of bivalves in the eastern Algarve were: fishing effort (number of fishing events), sea surface temperature, North Atlantic Oscillation (NAO) index, upwelling index, wind magnitude and direction and river discharges. Analysis of time series data using min/max autocorrelation factor analysis and dynamic factor analysis showed that, for most species, fishing effort was positively related with landings per unit effort trends in the following year. Lagoon bivalve species (Cerastoderma edule and Ruditapes decussatus) responded to different environmental variables than the coastal bivalve species (Chamelea gallina, Pharus legumen, Donax spp. and Spisula solida). Upwelling index had a significant effect on the lagoon bivalves while the NAO index, wind magnitude and direction, and river discharges only affected the coastal species. This study highlighted the need to adapt fishing effort regimes, while considering the background effects of environmental variability, in order to improve fisheries management. |
format |
Article in Journal/Newspaper |
author |
Vânia, Baptista Ullah, Hadayet Teixeira, Célia M. Range, Pedro Erzini, Karim Leitão, Francisco |
spellingShingle |
Vânia, Baptista Ullah, Hadayet Teixeira, Célia M. Range, Pedro Erzini, Karim Leitão, Francisco Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
author_facet |
Vânia, Baptista Ullah, Hadayet Teixeira, Célia M. Range, Pedro Erzini, Karim Leitão, Francisco |
author_sort |
Vânia, Baptista |
title |
Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
title_short |
Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
title_full |
Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
title_fullStr |
Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
title_full_unstemmed |
Influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
title_sort |
influence of environmental variables and fishing pressure on bivalve fisheries in an inshore lagoon and adjacent nearshore coastal area |
publisher |
Springer Verlag |
publishDate |
2014 |
url |
http://hdl.handle.net/10400.1/8888 https://doi.org/10.1007/s12237-013-9658-4 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
WOS:000330588000014 1559-2723 AUT: KER00534; http://hdl.handle.net/10400.1/8888 doi:10.1007/s12237-013-9658-4 |
op_rights |
restrictedAccess |
op_doi |
https://doi.org/10.1007/s12237-013-9658-4 |
container_title |
Estuaries and Coasts |
container_volume |
37 |
container_issue |
1 |
container_start_page |
191 |
op_container_end_page |
205 |
_version_ |
1766133727872679936 |