Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure

Coastal fishes are not only valuable elements of marine biodiversity, but they also play an important ecological role in the functioning of coastal ecosystems: food resource, transfer of nutrients, predators. Therefore, data on the compositions of fish assemblages are of great importance. The object...

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Main Authors: Michel Marengo, Laura Iborra, Michèle Leduc, Pierre Lejeune, Pierre Boissery, Sylvie Gobert
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/13/8/368
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author Michel Marengo
Laura Iborra
Michèle Leduc
Pierre Lejeune
Pierre Boissery
Sylvie Gobert
author_facet Michel Marengo
Laura Iborra
Michèle Leduc
Pierre Lejeune
Pierre Boissery
Sylvie Gobert
author_sort Michel Marengo
collection DOAJ
description Coastal fishes are not only valuable elements of marine biodiversity, but they also play an important ecological role in the functioning of coastal ecosystems: food resource, transfer of nutrients, predators. Therefore, data on the compositions of fish assemblages are of great importance. The objectives of the present study were to (i) define the faunistic characteristics of a typical fish community on the Mediterranean coast; (ii) investigate spatiotemporal changes in fish assemblages. Based on a set of indices (Fast protocol) and a long-term data set (6 years, 612 visual counts, 154 h of diving), changes in coastal fish communities were analyzed. Our results indicated that there was a significant shift in fish community structure, with a general decline of the calculated indices. In our study, part of the observed variability in fish assemblage structure could be due to different factors as site location and sampled year. The changes in the fish assemblages associated with inter-annual fluctuations observed in this study also provide important insights into how fish communities may change under environmental and anthropogenic influences.
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spelling doaj.art-7380428dcd94485e931c7de54af15f532023-11-22T07:22:08ZengMDPI AGDiversity1424-28182021-08-0113836810.3390/d13080368Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage StructureMichel Marengo0Laura Iborra1Michèle Leduc2Pierre Lejeune3Pierre Boissery4Sylvie Gobert5Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, FranceStation de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, FranceStation de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, FranceStation de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, FranceAgence de l’Eau Rhône Méditerranée Corse—Délégation Paca Corse, Immeuble Le Noailles, 62 La Canebière, 13001 Marseille, FranceStation de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, FranceCoastal fishes are not only valuable elements of marine biodiversity, but they also play an important ecological role in the functioning of coastal ecosystems: food resource, transfer of nutrients, predators. Therefore, data on the compositions of fish assemblages are of great importance. The objectives of the present study were to (i) define the faunistic characteristics of a typical fish community on the Mediterranean coast; (ii) investigate spatiotemporal changes in fish assemblages. Based on a set of indices (Fast protocol) and a long-term data set (6 years, 612 visual counts, 154 h of diving), changes in coastal fish communities were analyzed. Our results indicated that there was a significant shift in fish community structure, with a general decline of the calculated indices. In our study, part of the observed variability in fish assemblage structure could be due to different factors as site location and sampled year. The changes in the fish assemblages associated with inter-annual fluctuations observed in this study also provide important insights into how fish communities may change under environmental and anthropogenic influences.https://www.mdpi.com/1424-2818/13/8/368fisheriesfish assemblagemarine protected areavisual census
spellingShingle Michel Marengo
Laura Iborra
Michèle Leduc
Pierre Lejeune
Pierre Boissery
Sylvie Gobert
Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure
Diversity
fisheries
fish assemblage
marine protected area
visual census
title Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure
title_full Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure
title_fullStr Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure
title_full_unstemmed Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure
title_short Assessing Spatial and Temporal Trends in a Mediterranean Fish Assemblage Structure
title_sort assessing spatial and temporal trends in a mediterranean fish assemblage structure
topic fisheries
fish assemblage
marine protected area
visual census
url https://www.mdpi.com/1424-2818/13/8/368
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