Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes

Eleven ecomorphological attributes and diet of seventeen juvenile fish species were examined to test the hypothesis that morphological patterns determine resource uses in estuarine habitats. Species were separated according to the apparatus to food capture and habitat use (benthic or pelagic) in thr...

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Main Authors: André Luiz Machado Pessanha, Francisco Gerson Araújo, Ronnie Enderson M. C. C. Oliveira, Adna Ferreira da Silva, Natalice Santos Sales
Format: Article
Language:English
Published: Sociedade Brasileira de Ictiologia
Series:Neotropical Ichthyology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200401&lng=en&tlng=en
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author André Luiz Machado Pessanha
Francisco Gerson Araújo
Ronnie Enderson M. C. C. Oliveira
Adna Ferreira da Silva
Natalice Santos Sales
author_facet André Luiz Machado Pessanha
Francisco Gerson Araújo
Ronnie Enderson M. C. C. Oliveira
Adna Ferreira da Silva
Natalice Santos Sales
author_sort André Luiz Machado Pessanha
collection DOAJ
description Eleven ecomorphological attributes and diet of seventeen juvenile fish species were examined to test the hypothesis that morphological patterns determine resource uses in estuarine habitats. Species were separated according to the apparatus to food capture and habitat use (benthic or pelagic) in three different groups: (1) a group with depressed fish body, strong caudal peduncle and enlarged pectoral fins; (2) a second group laterally flattened with a wide protruding mouth, and (3) a third group strongly flattened with small pectorals fins. The following six trophic groups were organized based on prey categories: Zooplanktivores, Benthivores, Omnivores, Detritivores, Macrocarnivores and Insectivores. Significant results (PERMANOVA) between ecomorphological indices and habitat and between ecomorphological indices and trophic groups were found. These data indicate that similarity of ecomorphological forms, which minimize the influence of environment and partitioning of food, would help facilitate the co-existence of these fish when they are abundant in this tropical estuary.
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spelling doaj.art-15a55c91c2474cd18d8a837d5c2484452022-12-21T19:16:24ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022413240141210.1590/1982-0224-20140080S1679-62252015000200401Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishesAndré Luiz Machado PessanhaFrancisco Gerson AraújoRonnie Enderson M. C. C. OliveiraAdna Ferreira da SilvaNatalice Santos SalesEleven ecomorphological attributes and diet of seventeen juvenile fish species were examined to test the hypothesis that morphological patterns determine resource uses in estuarine habitats. Species were separated according to the apparatus to food capture and habitat use (benthic or pelagic) in three different groups: (1) a group with depressed fish body, strong caudal peduncle and enlarged pectoral fins; (2) a second group laterally flattened with a wide protruding mouth, and (3) a third group strongly flattened with small pectorals fins. The following six trophic groups were organized based on prey categories: Zooplanktivores, Benthivores, Omnivores, Detritivores, Macrocarnivores and Insectivores. Significant results (PERMANOVA) between ecomorphological indices and habitat and between ecomorphological indices and trophic groups were found. These data indicate that similarity of ecomorphological forms, which minimize the influence of environment and partitioning of food, would help facilitate the co-existence of these fish when they are abundant in this tropical estuary.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200401&lng=en&tlng=enDietsEstuaryHabitatsMorphologyResource partitioning
spellingShingle André Luiz Machado Pessanha
Francisco Gerson Araújo
Ronnie Enderson M. C. C. Oliveira
Adna Ferreira da Silva
Natalice Santos Sales
Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
Neotropical Ichthyology
Diets
Estuary
Habitats
Morphology
Resource partitioning
title Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
title_full Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
title_fullStr Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
title_full_unstemmed Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
title_short Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
title_sort ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes
topic Diets
Estuary
Habitats
Morphology
Resource partitioning
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200401&lng=en&tlng=en
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