Alimentação de quatro espécies de Characiformes de um riacho da Floresta Atlântica, Guaraqueçaba, Paraná, Brasil

Barreto, Almir P.; Aranha, José Marcelo Rocha

doi:10.1590/s0101-81752006000300023

Cited by 52 publications

(58 citation statements)

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“…The greater necessity of protein for juveniles relates to a shift from insectivore to omnivore during ontogenetic development. As fish grow they can explore new food sources contributing to a more omnivorous diet (Sabino & Castro, 1990;Vitule & Aranha, 2002, Barreto & Aranha, 2006. These results confirm that ontogenetic dietary shifts occur widely among omnivorous tropical stream fishes (Kramer & Bryant, 1995b).…”

Section: Discussionmentioning

confidence: 68%

“…Characins display a wide range of feeding modes with herbivores, insectivores, carnivores and omnivores, showing great plasticity associated with seasonal, spatial and ontogenetic variations (Sabino & Castro, 1990;Kramer & Bryant, 1995b;Aranha et al,1998;Winemiller & Jepsen, 1998;Vitule & Aranha, 2002;Vilella et al,2002;Fogaça et al,2003;Barreto & Aranha, 2006) Deuterodon Eigenmann, 1907 (Characiformes, Characidae) is a very important genus with a large distribution in the Atlantic Forest, and is always frequent and abundant within fish assemblages of littoral rivers, mainly in South and Southeastern Brazil. Despite that, there are few studies of its ecology: Sabino & Castro (1990), Aranha et al (1998), Mazzoni & Petito (1999), Esteves & Lobón-Cerviá (2001), Vitule & Aranha (2002), Fogaça et al (2003), Barreto & Aranha (2005), Barreto & Aranha (2006), Vitule et al (2008). Deuterodon langei Travassos, 1957 is popularly called "lambari" and is one of seven currently recognized species of the genus, being endemic and very abundant in coastal streams of Paraná and north of Santa Catarina, southern Brazilian states (Aranha et al,1998;Lucena & Lucena, 2002;Vitule & Aranha, 2002;Barreto & Aranha, 2005;Vitule et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Studies on D. langei diet had recently been carried out in littoral streams of Paraná State. The fish has been shown to be omnivorous/herbivorous (Aranha et al,1998;Barreto & Aranha, 2006) and insectivorous, with a predominance of aquatic insects in its diet (Fogaça et al,2003). A trend toward omnivory with decrease in animal items and increase in plant items has been shown to occur during ontogeny (Vitule & Aranha, 2002).…”

Section: Introductionmentioning

confidence: 99%

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2008

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Information related to the diet of one species always contributes to the knowledge of its bionomy and the functioning of the ecosystem in which the species lives. Therefore, understanding the feeding ecology of one fish population and its ontogenetic, spatial and temporal aspects help to understand the structure of fish assemblages and river communities. Knowledge of this structure is essential for habitat management and biodiversity conservation. The feeding ecology of Deuterodon langei Travassos, 1957 was studied through analyses of diet composition, sharing of resources, feeding strategy and contribution of food items to the width of its niche. The analysis included an assessment of ontogenetic, spatial and seasonal variations. The species was considered omnivorous with great plasticity caused by seasonal variation in food availability throughout the river basin, but mainly through ontogeny. The diet of smaller individuals revealed a predominance of insects and other arthropods, while the diet of larger specimens showed allochthonous plant items as the main components. The low intestinal quotient (IQ) values for the smaller individuals were accounted for their mainly insectivorous diet. The greater relative length of the intestine can account for the greater plasticity of the adult diet, enabling them to use diet items of larger size and more difficult digestion, such as plant items. Therefore, shifts in feeding ecology during growth are confirmed in this omnivorous tropical river fish, strengthening the concept that, when comparing food habits among species, fish size must be taken into account. This study also provides needed information regarding the feeding ecology of fishes intrinsically associated with the Atlantic rainforest, one of the most threatened and biodiverse ecosystems of the planet.Informações relacionadas à alimentação de uma espécie contribuem para o conhecimento de sua bionomia e funcionamento do ecossistema no qual ela vive. Desta forma, entender a ecologia alimentar de uma população de peixes e seus aspectos ontogenéticos, temporais e espaciais auxiliam na compreensão da assembléia de peixes e de toda a comunidade de um rio. Reconhecer tal estrutura é fundamental para o manejo e conservação da biodiversidade do habitat. A ecologia alimentar de Deuterodon langei Travassos, 1957 foi analisada por meio da composição da dieta, partilha de recursos, estratégia alimentar e contribuição dos itens alimentares para o nicho alimentar. As análises incluem uma abordagem das variações ontogenéticas, espaciais e temporais. A espécie foi considerada onívora com uma grande plasticidade alimentar causada pela variabilidade sazonal na disponibilidade de recursos e ao longo da bacia hidrográfica, mas principalmente ao longo de sua ontogenia. A dieta dos indivíduos menores revelou uma predominância de insetos e outros artrópodes, enquanto nos indivíduos maiores ocorreu um predomínio de vegetais alóctones. Os baixos valores de Quociente Intestinal (IQ) para os indivíduos menores foram associados a uma dieta ...

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Section: Discussionmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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2008

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“…Studies of feeding ecology provide important insights into the biology of a species, which may be extremely relevant to the conservation of not only the taxon itself, but also the ecosystems it inhabits (Barreto & Aranha 2006) enabling a better understanding of the relation among fishes and their habitats. Relatively few studies of this type are available for the complex network of Brazilian streams, considering that most fieldwork has been conducted in large bodies of waters, such as major rivers and reservoirs (Esteves & Aranha 1999, Braga et al 2012.…”

Section: Introductionmentioning

confidence: 99%

Feeding ecology of Dash-dot Tetra Hemigrammus belottii(Steindachner 1882) (Characiformes: Characidae) in the streams of the Urucu River basin, central Amazonia, Brazil

et al. 2013

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Abstract:The present study describes aspects of feeding ecology of Dash-dot Tetra Hemigrammus belottii (Characiformes: Characidae) collected in the Urucu River basin in Coari, Amazonas (Brazil), aims to respond the following question: What is the influence of hydrological periods (dry and wet) and spatial distribution in the diet of H. belottii ? The specimens were collected between 2006 and 2009 in seven streams in the Urucu basin using standard capture methods. Their stomachs were removed for diet composition analyses. The alimentary items were weighed and identified for subsequent analyzes related to feeding intensity by repletion index (RI%) and importance by alimentary index (AIi%). A total of 227 specimens were analyzed, with a mean standard length of 16.5±5.6 mm. The RI% values indicated that H. belottii fed more intensively during the dry season. The principal items in the diet were Formicidae (IAi% = 69.6), fragments of allochthonous exoskeleton (IAi% = 17.7), and Coleoptera (IAi% = 6.0). The composition of the diet did not vary significantly between seasons or among habitats, which may be related to the abundance of the items exploited by the species throughout the year.Hemigrammus belottii showed a generalist insectivore feeding habits which was mainly composed by allochthonous item. Resumo: O presente estudo descreve a dieta da espécie Hemigrammus belottii (Characiformes: Characidae) coletados na bacia do Rio Urucu no município de Coari, Amazonas, (Brasil), buscando responder o seguinte questionamento: Qual a influência dos períodos hidrológicos (seco e chuvoso) e da distribuição espacial na dieta de H. belottii ? Os espécimes tiveram seus estômagos retirados e os itens alimentares pesados e identificados para posteriores análises relacionadas à intensidade alimentar, pelo Índice de Repleção (IR%) e pelo índice de importância alimentar (IAi%). Foi analisado um total de 227 espécimes, com comprimento padrão médio de 16,54 mm ± 5,6 mm. Baseado no IR% verificou-se para H. belottii uma maior intensidade alimentar durante o período da seca. A dieta da espécie foi composta predominantemente pelos itens Formicidae (IAi% = 69,6), fragmento de exoesqueleto alóctone (IAi% = 17,7) e Coleoptera (IAi% = 6,0), com sua composição se mostrando independente de períodos hidrológicos e de sua distribuição espacial, que pode ser atribuído à alta disponibilidade de itens alimentares utilizados pela espécie durante o ano todo. De um modo geral H. belottii evidenciou um hábito alimentar insetívoro generalista, com predomínio de itens de origem alóctone. Palavras-chave: itens alóctones, bacia Amazônica, ecologia trófica.

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“…Menezes & Caramaschi 1994, Aranha & Caramaschi 1999, Mazzoni & Iglesias-Rios 2002a, Mazzoni et al 2002, Mazzoni & Silva, 2006Vitule et al 2007, 2008a, Braga et al 2008, feeding habits (e.g. Aranha & Caramaschi 1999, Aranha et al 2000, Vitule & Aranha 2002, Rezende & Mazoni 2003, Barreto & Aranha 2006, Leitão et al 2007, Mazzoni & Costa 2007, Vitule et al 2008b, population structure (e.g. Braga et al 2007) and spatial distribution (e.g.…”

Section: Introductionmentioning

confidence: 99%

Ichthyofauna of Rio Jurubatuba, Santos, São Paulo: a high diversity refuge in impacted lands

Mattox

Iglesias

2010

Biota Neotrop.

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Ichthyofaunistic surveys in the Atlantic Rainforest have been published in relatively few works, in spite of the major biological importance of this once vast biome which is rapidly vanishing due to disordered human population growth and natural resources overexploitation. The present study aimed to access the fish fauna of a relatively well preserved basin between the cities of Santos and Cubatão (SP), an area highly modified by human activities where recent ichthyofaunistic surveys are still missing. Collections were made during three field trips in Rio Jurubatuba, a medium sized costal river, and Riacho Sabão, one of its main tributaries. A total of 2773 specimens were sampled, representing 25 species from 14 families. Six species were primary marine using the upper reaches of Rio Jurubatuba. Twelve of the 19 freshwater species are endemic of the Atlantic Rainforest and four are present in regional lists of endangered species. Only five species occurred in both Rio Jurubatuba and Riacho Sabão. The most diverse family was Characidae, followed by Poeciliidae, Rivulidae and Heptapteridae. Phalloceros caudimaculatus was the most abundant species, followed by Poecilia vivipara and Geophagus brasiliensis. The study area is considered well preserved and due to its critical location, urges for conservation policies to protect its fish diversity.

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Alimentação de quatro espécies de Characiformes de um riacho da Floresta Atlântica, Guaraqueçaba, Paraná, Brasil

Cited by 52 publications

References 15 publications

[No Title Available]

[No Title Available]

Feeding ecology of Dash-dot Tetra Hemigrammus belottii(Steindachner 1882) (Characiformes: Characidae) in the streams of the Urucu River basin, central Amazonia, Brazil

Ichthyofauna of Rio Jurubatuba, Santos, São Paulo: a high diversity refuge in impacted lands

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