Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil

Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil

Bibliographic Details
Main Authors: Senteio Smith, Welber, Petrere Jr., Miguel
Format: Online
Language:eng
Published: Universidad de Costa Rica 2008
Online Access:https://revistas.ucr.ac.cr/index.php/rbt/article/view/5775
id RBT5775
record_format ojs
spelling RBT57752022-06-06T18:05:27Z Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil Senteio Smith, Welber Petrere Jr., Miguel Río Sorocaba embalse Itupararanga estructura de la comunidad diversidad de especies riqueza de especies ictiofauna Sorocaba river Itupararanga Reservoir structure community species diversity species richness ichtyofauna The Itupararanga Reservoir is located at the Sorocaba River Basin, Sao Paulo State, Brazil. Five cities use the waters of this reservoir for human consumption. Despite this intensive use of the water resource, no study has been undertaken on the ichthyofauna of this reservoir. Collections were performed in nine sampling stations, where each three were located in the riverine, transitional and lacustrine zones. Fish specimens were collected using eight monofilament gillnets of 10 m length each, with varied mesh sizes, in the rainy and dry seasons, which corresponded to our spatial scale of analysis. Overall, 14 species of fish were identified, with the highest contribution from Characidae and Curimatidae. The most abundant species were: the "lambari", Astyanax fasciatus, the "saguiru", Cyphocharax modestus, the "lambari bocarra", Oligosarcus paranaensis, and the "mandi", Iheringichthys labrosus. Diversity tended to be higher during the dry season, although the difference was not statistically significant. Cluster analysis identified four season sampling groups differentiated by within-season distribution of species. Mantel's test showed that this distribution was little affected by environmental factors, suggesting that biotic factors were more important in determining the species distribution within the reservoir. Universidad de Costa Rica 2008-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/5775 10.15517/rbt.v56i4.5775 Revista de Biología Tropical; Vol. 56 No. 4 (2008): Volume 56 – Regular number 4 – December 2008; 2005–2020 Revista de Biología Tropical; Vol. 56 Núm. 4 (2008): Volumen 56 – Número regular 4 – Diciembre 2008; 2005–2020 Revista Biología Tropical; Vol. 56 N.º 4 (2008): Volume 56 – Regular number 4 – December 2008; 2005–2020 2215-2075 0034-7744 10.15517/rbt.v56i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/5775/5516 Copyright (c) 2008 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 Senteio Smith, Welber
Petrere Jr., Miguel
spellingShingle Senteio Smith, Welber
Petrere Jr., Miguel
Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
author_facet Senteio Smith, Welber
Petrere Jr., Miguel
author_sort Senteio Smith, Welber
title Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
title_short Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
title_full Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
title_fullStr Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
title_full_unstemmed Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
title_sort spatial and temporal patterns and their influence on fish community at itupararanga reservoir, brazil
title_alt Spatial and temporal patterns and their influence on fish community at Itupararanga Reservoir, Brazil
publisher Universidad de Costa Rica
publishDate 2008
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/5775
work_keys_str_mv AT senteiosmithwelber spatialandtemporalpatternsandtheirinfluenceonfishcommunityatitupararangareservoirbrazil
AT petrerejrmiguel spatialandtemporalpatternsandtheirinfluenceonfishcommunityatitupararangareservoirbrazil
_version_ 1810114573386121216

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