Aspectos Alimentares e Reprodutivos do Cascudo, Hypostomus pusarum (Starks, 1913) (Osteichthyes: Loricariidae) no Açude Marechal Dutra, Rio Grande do Norte, Brasil

Pessoa, Emilly Kataline Rodrigues; Lima, Louise Thuanne Barretto de; Chellappa, Naithirithi Tiruvenkatachary; Souza, Arrilton Araújo de; Chellappa, Sathyabama

doi:10.18561/2179-5746/biotaamazonia.v3n3p45-53

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Furthermore, the quantity and quality of the assimilated food influence the allocation of nutrients to animal tissues and organs (ZUANON, 2003). To understand the contribution of food items in aquatic environments, data obtained from traditional and chemical analyses provides essential information to understand the trophic dynamics of communities and for the conservation of ecosystems (CORRÊA & SILVA, 2010;PESSOA et al, 2012;2013a;2013b;GAMBOA-DELGADO et al, 2013;FRANCO et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Mixing models and stable isotopes as tools for research on feeding aquatic organisms

Moraes

Henry-Silva

2018

Cienc. Rural

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Implementation of mixture models in isotopic analysis has been increasing due to the need to analyze sources and understand their variations in relation to consumers, which requires an accurate determination of their discriminant rate and fractioning. In this context, we presented the main concepts related to the application of stable isotopes and mixing models, with the aim to analyze the benefits and problems of these tools in surveys on nutrition of aquatic organisms. The predominant methods identified included application of the models IsoSource, MixSIR, SIBER and SIAR, with the use of C and N isotopes in research with aquatic organisms. Studies in both freshwater and marine environments were evaluated to determine the relative contribution of the main food items and understand trophic relationships between organisms. It can be concluded that the application of mixing models, with the stable isotope technique, is a promising tool for research on feeding aquatic organisms and understanding issues related to trophic ecology of these organisms.

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Section: Introductionmentioning

confidence: 99%

Mixing models and stable isotopes as tools for research on feeding aquatic organisms

Moraes

Henry-Silva

2018

Cienc. Rural

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“…Windell & Bowen (1978) enfatizaram a importância na utilização desses estudos ao inseri-los como base para o entendimento das relações existentes entre a ictiofauna e seu hábitat, além de subsidiar práticas de conservação e manejo visando o uso sustentável das espécies nativas. No semiárido, especificamente no Rio Grande do Norte (RN), destacando-se estudos como os realizados na lagoa Boa Cica (Canan et al, 1997), na lagoa Redonda (Gurgel et al, 1994(Gurgel et al, , 1998, na lagoa do Jiqui (Gurgel & Canan, 1999), na lagoa de Extremoz (Raposo & Gurgel, 2003), na lagoa do Piató (Gavilan-Leandro et al, 2009;Silva et al, 2012), no reservatório Riacho da Cruz (Teixeira & Gurgel, 2004), no açude Corredor (Gurgel et al, 2002), no açude Marechal Dutra (Montenegro et al, 2011;Pessoa et al, 2013), no rio Piranhas-Açu (Magalhães et al, 1990;Gurgel et al, 2002), no rio Ceará Mirim (Andrade et al, 2000;Gurgel et al, 2005;Dias & Fialho, 2009) e no rio Seridó (Mendes et al, 2011).…”

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Estrutura trófica da ictiofauna em um reservatório do semiárido brasileiro

Oliveira

Segundo

Novaes

et al. 2016

Iheringia, Sér. Zool.

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ABSTRACT. Trophic structure of the ichthyofauna in a Brazilian semiarid reservoir. The establishment of the trophic structure of fi sh provides information on species autoecology and their role in the ecosystem, in addition to supporting conservation and management practices for sustainable use of native species. In the semiarid region of Rio Grande do Norte there are few studies of the natural diet of fi sh. In this context, this study aimed to characterize the trophic structure of the fi sh assemblage of the Santa Cruz reservoir, Apodi, state of Rio Grande do Norte, Brazil. Fish were collected quarterly (February, May, August and November) in eight points in the reservoir in 2011. After screening, biometric identifi cation and analysis, stomach or intestinal contents were analyzed and food items identifi ed were used for the calculation of the frequency of occurrence and volumetric whose association gives the Alimentary Index (IAi). The highest consumption of a particular item grouped the species into fi ve trophic guilds, and the detritivore/iliophagous, insectivore and carcinophagous the most abundant in the months and collection points, compared to herbivorous and piscivorous. The high abundance of individuals in these guilds can be explained by opportunistic species and the capture facility and intake of resources, since detritus/sediment, insects and shrimp are abundant in the environment studied. Thus, this study provided information about the items that contribute to the diet species, making it possible to infer about the interactions, allowing in the future to understand the complexity of trophic relationships and to assist the management practices and conservation of environment.KEYWORDS. Trophic guilds, fi shes, Santa Cruz Reservoir.RESUMO. O estabelecimento da estrutura trófi ca de peixes fornece informações sobre a autoecologia das espécies e seu papel no ecossistema, além de subsidiar práticas de conservação e manejo visando o uso sustentável das espécies nativas. Na região semiárida do Rio Grande do Norte existem poucos trabalhos sobre a alimentação natural de peixes. Neste contexto, o presente estudo visou caracterizar a estrutura trófi ca da assembleia de peixes do reservatório de Santa Cruz, Apodi, Estado do Rio Grande do Norte, Brasil. Os peixes foram coletados em oitos pontos, nos meses de fevereiro, maio, agosto e novembro de 2011. Após triagem, identifi cação e análise biométrica, os conteúdos estomacais ou intestinais foram analisados e, os itens alimentares identifi cados, utilizados para o cálculo das frequências de ocorrência e volumétrica cuja associação origina o Índice Alimentar (IAi). O maior consumo de um determinado item agrupou as espécies em cinco guildas trófi cas, sendo os detritívoros/iliófagos, insetívoros e carcinófagos os mais abundantes entre os meses e pontos de coletas, em relação aos herbívoros e piscívoros. A elevada abundância de indivíduos nessas guildas pode ser explicada pelo caráter oportunista das espécies e, pela facilidade de captura e ingestão dos recursos, ...

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Effects of anthropic actions and forest areas on a neotropical aquatic ecosystem

Collier

Neto

Almeida

et al. 2019

Science of The Total Environment

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Aspectos Alimentares e Reprodutivos do Cascudo, Hypostomus pusarum (Starks, 1913) (Osteichthyes: Loricariidae) no Açude Marechal Dutra, Rio Grande do Norte, Brasil

Cited by 4 publications

References 30 publications

Mixing models and stable isotopes as tools for research on feeding aquatic organisms

Mixing models and stable isotopes as tools for research on feeding aquatic organisms

Estrutura trófica da ictiofauna em um reservatório do semiárido brasileiro

Effects of anthropic actions and forest areas on a neotropical aquatic ecosystem

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