Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific

Differences in fish assemblages’ structures and their relations with environmental variables (due to the variations in sampled seasons, habitats, and zones) were analyzed in two adjacent estuaries on the north Pacific coast of Mexico. Environmental variables and fish catches were registered monthly...

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Main Authors: Victor Muro-Torres, Felipe Amezcua, Georgina Ramírez-Ortiz, Francisco Flores-de-Santiago, Felipe Amezcua-Linares, Yareli Hernández
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/8/619
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author Victor Muro-Torres
Felipe Amezcua
Georgina Ramírez-Ortiz
Francisco Flores-de-Santiago
Felipe Amezcua-Linares
Yareli Hernández
author_facet Victor Muro-Torres
Felipe Amezcua
Georgina Ramírez-Ortiz
Francisco Flores-de-Santiago
Felipe Amezcua-Linares
Yareli Hernández
author_sort Victor Muro-Torres
collection DOAJ
description Differences in fish assemblages’ structures and their relations with environmental variables (due to the variations in sampled seasons, habitats, and zones) were analyzed in two adjacent estuaries on the north Pacific coast of Mexico. Environmental variables and fish catches were registered monthly between August 2018 and October 2020. Multivariate analyses were conducted to define habitats and zones based on their environmental characteristics, and the effect of this variability on fish assemblages’ composition, biomass, and diversity (α and β) was evaluated. A total of 12,008 fish individuals of 143 species were collected using different fishing nets. Multivariate analyses indicated that fish assemblages’ structures were different between zones due to the presence, height, and coverage of distinct mangrove species. Additionally, depth and salinity showed effects on fish assemblages’ diversity (α and β-nestedness), which presented higher values in the ocean and remained similar in the rest of the analyzed zones and habitats. These results and the differences in species replacement (β-turnover) indicate the singularity of fish assemblages at estuaries (even in areas close to the ocean) and the necessity to establish local management strategies for these ecosystems.
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spelling doaj.art-b9812b3a913247f7881fab47c5539c942023-11-30T21:14:22ZengMDPI AGDiversity1424-28182022-08-0114861910.3390/d14080619Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican PacificVictor Muro-Torres0Felipe Amezcua1Georgina Ramírez-Ortiz2Francisco Flores-de-Santiago3Felipe Amezcua-Linares4Yareli Hernández5CONACYT-Centro de Investigaciones Biológicas del Noreste, Av. Instituto Politécnico Nacional 195, La Paz 23096, MexicoUnidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Joel Montes Camarena s/n, Mazatlan 82000, MexicoUnidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Joel Montes Camarena s/n, Mazatlan 82000, MexicoInstituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México Circuito Exterior, Ciudad Universitaria, Mexico City 04510, MexicoInstituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México Circuito Exterior, Ciudad Universitaria, Mexico City 04510, MexicoPosgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México Cto. de los Posgrados S/N, C.U., Coyoacán, Mexico City 04510, MexicoDifferences in fish assemblages’ structures and their relations with environmental variables (due to the variations in sampled seasons, habitats, and zones) were analyzed in two adjacent estuaries on the north Pacific coast of Mexico. Environmental variables and fish catches were registered monthly between August 2018 and October 2020. Multivariate analyses were conducted to define habitats and zones based on their environmental characteristics, and the effect of this variability on fish assemblages’ composition, biomass, and diversity (α and β) was evaluated. A total of 12,008 fish individuals of 143 species were collected using different fishing nets. Multivariate analyses indicated that fish assemblages’ structures were different between zones due to the presence, height, and coverage of distinct mangrove species. Additionally, depth and salinity showed effects on fish assemblages’ diversity (α and β-nestedness), which presented higher values in the ocean and remained similar in the rest of the analyzed zones and habitats. These results and the differences in species replacement (β-turnover) indicate the singularity of fish assemblages at estuaries (even in areas close to the ocean) and the necessity to establish local management strategies for these ecosystems.https://www.mdpi.com/1424-2818/14/8/619mangrove forestsmarine protected areasalpha diversitybeta diversitymultivariate analyses
spellingShingle Victor Muro-Torres
Felipe Amezcua
Georgina Ramírez-Ortiz
Francisco Flores-de-Santiago
Felipe Amezcua-Linares
Yareli Hernández
Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific
Diversity
mangrove forests
marine protected areas
alpha diversity
beta diversity
multivariate analyses
title Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific
title_full Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific
title_fullStr Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific
title_full_unstemmed Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific
title_short Assessing the Spatiotemporal Relationship between Coastal Habitats and Fish Assemblages at Two Neotropical Estuaries of the Mexican Pacific
title_sort assessing the spatiotemporal relationship between coastal habitats and fish assemblages at two neotropical estuaries of the mexican pacific
topic mangrove forests
marine protected areas
alpha diversity
beta diversity
multivariate analyses
url https://www.mdpi.com/1424-2818/14/8/619
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