Artigo

Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil

Fish assemblages from two sandy beaches in the lower Purus river (Amazonas, Brazil) were compared. Four sampling groups were represented by: day and night samples in sandy beach inside the Reserva Biológica de Abufari (biological reserve) and day and night samples in the Reserva de Desenvolvimento S...

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Autor principal: Duarte, Cleber
Outros Autores: Py-daniel, Lúcia Rapp, Deus, C. P.
Grau: Artigo
Idioma: pt_BR
Publicado em: Iheringia - Serie Zoologia 2020
Assuntos:
Pisces
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/15026
id oai:repositorio:1-15026
recordtype dspace
spelling oai:repositorio:1-15026 Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil Assembleias de peixes de duas praias no baixo rio Purus, Amazonas, Brasil Duarte, Cleber Py-daniel, Lúcia Rapp Deus, C. P. Pisces Fish assemblages from two sandy beaches in the lower Purus river (Amazonas, Brazil) were compared. Four sampling groups were represented by: day and night samples in sandy beach inside the Reserva Biológica de Abufari (biological reserve) and day and night samples in the Reserva de Desenvolvimento Sustentável Piagaçu-Purus (sustainable development reserve). Samples were collected during low water levels (November) in 2007. The fish were sampled by means of seines with mesh size of 5 mm between opposing knots, 11 m long and 6 m wide. A total of 112 fish species belonging to nine orders and 27 families was captured. The vast majority of the dominant forms consisted of small fishes (< 100 mm SL) or juveniles. Samples collected in Abufari at night presented more specimens (3,540), higher richness (84 spp.), larger total biomass (76,614 g) and higher diversity (H'= 2.57) than the other groups. The composition of fish assemblages was significantly different among all analyzed groups (ANOSIM, p < 0.0001, R= 0.71). NMDS analysis also clustered all species in four distinct groups according to species composition per period and site. SIMPER analyses showed that 80% of variation of species composition among the groups examined was due to 12 species. However, fish composition did not show any correlation with the abiotic factors examined. Different levels of use in both reserves may explain differences in fish composition. 2020-05-07T14:01:28Z 2020-05-07T14:01:28Z 2010 Artigo https://repositorio.inpa.gov.br/handle/1/15026 10.1590/S0073-47212010000400006 pt_BR Volume 100, Número 4, Pags. 319-328 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Iheringia - Serie Zoologia
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language pt_BR
topic Pisces
spellingShingle Pisces
Duarte, Cleber
Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
topic_facet Pisces
description Fish assemblages from two sandy beaches in the lower Purus river (Amazonas, Brazil) were compared. Four sampling groups were represented by: day and night samples in sandy beach inside the Reserva Biológica de Abufari (biological reserve) and day and night samples in the Reserva de Desenvolvimento Sustentável Piagaçu-Purus (sustainable development reserve). Samples were collected during low water levels (November) in 2007. The fish were sampled by means of seines with mesh size of 5 mm between opposing knots, 11 m long and 6 m wide. A total of 112 fish species belonging to nine orders and 27 families was captured. The vast majority of the dominant forms consisted of small fishes (< 100 mm SL) or juveniles. Samples collected in Abufari at night presented more specimens (3,540), higher richness (84 spp.), larger total biomass (76,614 g) and higher diversity (H'= 2.57) than the other groups. The composition of fish assemblages was significantly different among all analyzed groups (ANOSIM, p < 0.0001, R= 0.71). NMDS analysis also clustered all species in four distinct groups according to species composition per period and site. SIMPER analyses showed that 80% of variation of species composition among the groups examined was due to 12 species. However, fish composition did not show any correlation with the abiotic factors examined. Different levels of use in both reserves may explain differences in fish composition.
format Artigo
author Duarte, Cleber
author2 Py-daniel, Lúcia Rapp
Deus, C. P.
author2Str Py-daniel, Lúcia Rapp
Deus, C. P.
title Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
title_short Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
title_full Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
title_fullStr Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
title_full_unstemmed Fish assemblages in two sandy beaches in lower purus river, Amazonas, Brazil
title_sort fish assemblages in two sandy beaches in lower purus river, amazonas, brazil
publisher Iheringia - Serie Zoologia
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/15026
_version_ 1787144101503696896
score 11.755432

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