Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico

Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico

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Bibliographic Details
Main Authors: Torruco, Daniel, A. Chávez, Ernesto, González, Alicia
Format: Online
Language:eng
Published: Universidad de Costa Rica 2007
Online Access:https://revistas.ucr.ac.cr/index.php/rbt/article/view/6028
id RBT6028
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spelling RBT60282022-05-30T19:05:50Z Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico Torruco, Daniel A. Chávez, Ernesto González, Alicia Invertebrados marinos peces composición de comunidad diversidad espectro trófico Golfo de México Veracruz. Marine invertebrates fish community composition diversity trophic spectrum Gulf of Mexico Structural patterns of a sublittoral community were analyzed through a two year series of samples in the Southwestern Gulf of Mexico. The groups involved in the study comprise fishes, molluscs, echinoderms and crustaceans. The time-space progressions of Second 0rder diversity values range between N2=5.3 and N2=9.8 at depths of 40 and 20 m respectively, through the first year of samples. In the second year the highest value (N2=22.2) was found at 30 m. The community ordination data through cluster and principal components analysis show five assemblages: benthic, benthic-demersal, demersal, mid water column, and temporary. There is a striking difference in trophic web structure between the dry season and rainy season. Fish community resource partitioning shows that the components are organized in three guilds: ichthyophagous, carcinophagous and omnivorous. However, a partial overlap of niches was commonly observed, and juvenile stages showed a narrower trophic spectrum than adults. -- Universidad de Costa Rica 2007-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/6028 10.15517/rbt.v55i2.6028 Revista de Biología Tropical; Vol. 55 No. 2 (2007): Volume 55 – Regular number 2 – June 2007; 509–536 Revista de Biología Tropical; Vol. 55 Núm. 2 (2007): Volumen 55 – Número regular 2 – Junio 2007; 509–536 Revista Biología Tropical; Vol. 55 N.º 2 (2007): Volume 55 – Regular number 2 – June 2007; 509–536 2215-2075 0034-7744 10.15517/rbt.v55i2 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/6028/5733 Copyright (c) 2007 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution Universidad de Costa Rica
collection Revista de Biología Tropical
language eng
format Online
author Torruco, Daniel
A. Chávez, Ernesto
González, Alicia
spellingShingle Torruco, Daniel
A. Chávez, Ernesto
González, Alicia
Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
author_facet Torruco, Daniel
A. Chávez, Ernesto
González, Alicia
author_sort Torruco, Daniel
description --
title Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
title_short Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
title_full Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
title_fullStr Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
title_full_unstemmed Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
title_sort spatio-temporal variation of the structural organization of demersal communities in the southwestern gulf of mexico
title_alt Spatio-temporal variation of the structural organization of demersal communities in the Southwestern Gulf of Mexico
publisher Universidad de Costa Rica
publishDate 2007
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/6028
work_keys_str_mv AT torrucodaniel spatiotemporalvariationofthestructuralorganizationofdemersalcommunitiesinthesouthwesterngulfofmexico
AT achavezernesto spatiotemporalvariationofthestructuralorganizationofdemersalcommunitiesinthesouthwesterngulfofmexico
AT gonzalezalicia spatiotemporalvariationofthestructuralorganizationofdemersalcommunitiesinthesouthwesterngulfofmexico
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