Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park

Intensive and regular fishing occurs in the marine area of the natural park “Parque Natural do Sudoeste Alentejano e Costa Vicentina” (PNSACV; SW coast of continental Portugal). In 2011, this area became a marine park with different protection levels (total, partial, and complementary). We assessed...

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Main Authors: Nuno Castro, Tadeu J. Pereira, André Costa, Joana Sertório, António Fernandes, Maria J. Tavares, João J. Castro
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Hydrobiology
Subjects:
Online Access:https://www.mdpi.com/2673-9917/2/1/12
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author Nuno Castro
Tadeu J. Pereira
André Costa
Joana Sertório
António Fernandes
Maria J. Tavares
João J. Castro
author_facet Nuno Castro
Tadeu J. Pereira
André Costa
Joana Sertório
António Fernandes
Maria J. Tavares
João J. Castro
author_sort Nuno Castro
collection DOAJ
description Intensive and regular fishing occurs in the marine area of the natural park “Parque Natural do Sudoeste Alentejano e Costa Vicentina” (PNSACV; SW coast of continental Portugal). In 2011, this area became a marine park with different protection levels (total, partial, and complementary). We assessed in 2011 and 2012 if partial protection (PP) in Marine Protected Areas (MPAs) changed the taxa richness, abundance, size, and community composition of cryptic and non-cryptic fishes. We also determined if these effects were observed outside PP areas in adjacent control areas. Underwater visual censuses (UVC) of cryptic and non-cryptic fish species were conducted in rocky subtidal habitats (~10 m deep) with band transects (25 × 2 m and 25 × 4 m, respectively) to determine abundance and size classes. The northern half of the PNSACV was sampled at a scale of tens (site—two sites per area; 4–6 transects per site) and hundreds (area) of meters. Two PP and six control areas were sampled. The homogeneity and abundance of bottom habitat types were assessed at each site. Effects of protection were not detected in the community structure or univariate analyses (i.e., taxa richness and total abundance) of non-cryptic and cryptic fishes. The early phase of the MPAs may have driven the lack of significant protection effects. Replication in time within a monitoring program is recommended to assess these conservation measures’ ecological effects.
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spelling doaj.art-e44631050a2a472e984aa9731dd9811b2023-11-17T11:25:30ZengMDPI AGHydrobiology2673-99172023-02-012118119510.3390/hydrobiology2010012Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural ParkNuno Castro0Tadeu J. Pereira1André Costa2Joana Sertório3António Fernandes4Maria J. Tavares5João J. Castro6MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), 9020-105 Funchal, PortugalMARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, PortugalMARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Laboratório de Ciências do Mar, Universidade de Évora, Apartado 190, 7521-903 Sines, PortugalMARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, PortugalMARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, PortugalMARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, PortugalMARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Laboratório de Ciências do Mar, Universidade de Évora, Apartado 190, 7521-903 Sines, PortugalIntensive and regular fishing occurs in the marine area of the natural park “Parque Natural do Sudoeste Alentejano e Costa Vicentina” (PNSACV; SW coast of continental Portugal). In 2011, this area became a marine park with different protection levels (total, partial, and complementary). We assessed in 2011 and 2012 if partial protection (PP) in Marine Protected Areas (MPAs) changed the taxa richness, abundance, size, and community composition of cryptic and non-cryptic fishes. We also determined if these effects were observed outside PP areas in adjacent control areas. Underwater visual censuses (UVC) of cryptic and non-cryptic fish species were conducted in rocky subtidal habitats (~10 m deep) with band transects (25 × 2 m and 25 × 4 m, respectively) to determine abundance and size classes. The northern half of the PNSACV was sampled at a scale of tens (site—two sites per area; 4–6 transects per site) and hundreds (area) of meters. Two PP and six control areas were sampled. The homogeneity and abundance of bottom habitat types were assessed at each site. Effects of protection were not detected in the community structure or univariate analyses (i.e., taxa richness and total abundance) of non-cryptic and cryptic fishes. The early phase of the MPAs may have driven the lack of significant protection effects. Replication in time within a monitoring program is recommended to assess these conservation measures’ ecological effects.https://www.mdpi.com/2673-9917/2/1/12marine protected areasMPAUVCtemperate reefssubtidal
spellingShingle Nuno Castro
Tadeu J. Pereira
André Costa
Joana Sertório
António Fernandes
Maria J. Tavares
João J. Castro
Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park
Hydrobiology
marine protected areas
MPA
UVC
temperate reefs
subtidal
title Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park
title_full Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park
title_fullStr Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park
title_full_unstemmed Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park
title_short Using Fish Assemblages to Assess the Ecological Effects of Marine Protection on Rocky Habitats in a Portuguese Natural Park
title_sort using fish assemblages to assess the ecological effects of marine protection on rocky habitats in a portuguese natural park
topic marine protected areas
MPA
UVC
temperate reefs
subtidal
url https://www.mdpi.com/2673-9917/2/1/12
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