2016
DOI: 10.17765/2176-9168.2016v9n4p949-972
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Padrões de Distribuição e Ocorrência do Ictioplâncton no Médio Rio Xingu, Bacia Amazônica, Brasil

Abstract: RESUMO:O estudo teve como objetivo analisar a abundância e distribuição do ictioplâncton na região da 'Volta Grande do Xingu', Pará, Brasil. As coletas foram realizadas em 04 campanhas durante as fases do ciclo hidrológico local, distribuídas em 16 estações de amostragens. Foram capturados 95 ovos e 398 larvas de peixes, classificadas em 25 táxons, pertencentes a 05 ordens, 16 famílias, 19 gêneros e 18 espécies, dentre as quais 09 são utilizadas como fonte de renda, alimento e subsistência da população local. … Show more

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Cited by 10 publications
(11 citation statements)
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“…There is a close relationship between environmental factors (temperature, dissolved oxygen, pH, electric conductivity, nutrient availability and photoperiod) and the spatio‐temporal distribution of fish eggs and larvae, as shown in other studies, such as those by Ziober, Bialetzki and Matheus (), Lopes, Garcia, Reynalte‐Tataje, Zaniboni‐Filho and Nuñer (), Ponte et al. (), Suzuki and Pompeu (), Zacardi and Ponte () and Chaves et al. ().…”
Section: Discussionsupporting
confidence: 68%
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“…There is a close relationship between environmental factors (temperature, dissolved oxygen, pH, electric conductivity, nutrient availability and photoperiod) and the spatio‐temporal distribution of fish eggs and larvae, as shown in other studies, such as those by Ziober, Bialetzki and Matheus (), Lopes, Garcia, Reynalte‐Tataje, Zaniboni‐Filho and Nuñer (), Ponte et al. (), Suzuki and Pompeu (), Zacardi and Ponte () and Chaves et al. ().…”
Section: Discussionsupporting
confidence: 68%
“…However, in the Amazon, studies of ecology and distribution the fish larvae remain scarce; exceptions are the studies of Oliveira and Araújo‐Lima (), Oliveira (), Araújo‐Lima, Silva, Petry, Oliveira and Moura (), Lima and Araújo‐Lima (), Oliveira and Ferreira (), Mounic‐Silva and Leite (), Ponte et al. (), Zacardi and Ponte () and Chaves et al. () focusing on species of greater economic interest.…”
Section: Introductionmentioning
confidence: 99%
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“…Quanto a variação circadiana relacionada com a distribuição vertical das larvas, esta apresentou diferenças significativas (P = <0,006), com os maiores valores de densidades no fundo e durante o dia, especialmente às 10h00 e 14h00; enquanto que, à noite o pico foi registrado na superfície, às 22h00 (Figura 5), evidenciando a busca por alimento. Estes resultados corroboram com os estudos realizados por Baumgartner et al, (2004);Ponte, (2016). O teste de Tukey confirmou diferenças significativas entre os valores médios de ovos e larvas de peixes entre períodos diurno e noturno.…”
Section: Resultsunclassified
“…Despite its relevance to adult individuals of the ichthyofauna, little is known about the functioning and structure of the community of fish eggs and larvae in the confluence zones between rivers with different trophic state indices of the Amazon region (Nakajima et al., 2017; Röpke et al., 2016; Zacardi & Ponte, 2016). This information becomes crucial when it comes to detecting areas of spawning, nursery, growth and development; to understand the ecological aspects that modulate and structure the ichthyoplankton community; and to supporting measures for the management and conservation of species.…”
Section: Introductionmentioning
confidence: 99%