Invasive molluscs in the diet of <i>Pterodoras granulosus</i> (Valenciennes, 1821) (Pisces, Doradidae) in the Upper Paraná River floodplain, Brazil

Cantanhêde, Geuza; Hahn, Norma Segatti; Gubiani, Éder André; Fugi, Rosemara

doi:10.1111/j.1600-0633.2007.00258.x

Cited by 54 publications

(39 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Trough predation, I. labrosus may represent a natural and abundant predator of these two harmful species of freshwater ecosystems, and could play an important role in terms of controlling dispersion ranges of these Bivalvia species. One the other hand, I. labrosus may act as disperser in case bivalves survive to the digestion (Cantanhêde et al, 2008). In this study, however, most of these bivalves were found broken and totally digested.…”

Section: Dietcontrasting

confidence: 47%

Feeding habits and morphometry of Iheringichthys labrosus (Lütken, 1874) in the Uruguay River (Uruguay)

Masdeu

Mello

Loureiro³

et al. 2011

Neotrop. ichthyol.

View full text Add to dashboard Cite

Body size and diet of organisms are fundamental attributes which determine their ecology and natural history. Iheringichthys labrosus is one of the most common fish species of the Uruguay River. However, its natural history is poorly known and there is little information about its diet and interactions with other species. This paper describes the feeding habits of this species, relating feeding patterns to the size classes and morphometry of individuals and to the temporal variations. Fishes were captured in May and November of 2006 in three zones of the lower Uruguay River. A total of 101 stomach contents was analyzed (standard length: 60-224 mm). The species exhibited a broad feeding spectrum with most items belonging to the benthic community. We found significant diet differences between size classes and studied months. However, we have not found a close relationship between changes in morphometric variables and diet shifts between size classes.O tamanho do corpo e a dieta são atributos fundamentais que determinam a ecologia e a história de vida dos organismos. Iheringichthys labrosus é uma das espécies mais comuns do rio Uruguai, entretanto, sua história natural é pouco conhecida e particularmente existe pouca informação sobre sua dieta e interações com outras espécies. Este artigo descreve os hábitos alimentares de I. labrosus, associando os padrões de alimentação com as classes de tamanho, à morfometria dos indivíduos e às variações temporais. Um total de 101 estômagos foi analisado (comprimento padrão: 60-224 mm). Os peixes foram capturados durante Maio e Novembro de 2006 em três áreas da porção inferior do rio Uruguai. Iheringichthys labrosus exibiu um amplo espectro alimentar, com a maioria dos componentes da dieta pertencentes à comunidade bentônica. Foram encontradas diferenças significativas na dieta em relação às classes de tamanho dos indivíduos e aos meses de estudo. No entanto, não foram encontradas relações estreitas entre as variáveis morfométricas analisadas e variações na dieta entre as classes de tamanho.

show abstract

Section: Dietcontrasting

confidence: 47%

Feeding habits and morphometry of Iheringichthys labrosus (Lütken, 1874) in the Uruguay River (Uruguay)

Masdeu

Mello

Loureiro³

et al. 2011

Neotrop. ichthyol.

View full text Add to dashboard Cite

show abstract

“…Fish have been reported to consume these mollusks, particularly the Doradidae Pterodoras granulosus, whose diet contains large amounts of C. fluminae and L. fortunei (Ferriz et al 2000;Gaspar da Luz et al 2002;Cantanhêde et al 2008). Although the eradication of aquatic invasive species is a difficult task (Vitule et al 2009), it is expected that intensive consumption can have an important role in their control.…”

Section: Diet Compositionmentioning

confidence: 99%

Fish as Potential Controllers of Invasive Mollusks in a Neotropical Reservoir

Oliveira¹,

Fugi²,

Brancalhão³

et al. 2010

Nat. Conserv.

View full text Add to dashboard Cite

We evaluated the importance of the invasive mollusks (Corbicula fluminea and Limnoperna fortunei) in the diets of the fish species through analysis of stomach contents of fish caught in the commercial fishery in the years 2005 and 2006 in the Itaipu Reservoir (Upper Paraná River). The degree that these bivalves are processed in the digestive tract was used to identify potential controllers.Food items were evaluated by using the methods of occurrence, volume, and Feeding Index (IAi). Out of the 36 fish species present in the fishery landings, 24 consumed L. fortunei and 12 consumed C. fluminea. In order to evaluate the possibility that the bivalves pass through the digestive tract of the predator without any damage, their degree of digestion was evaluated. Only species with morphological pre-adaptations for a malacophagous diet, or that managed to crush the shells of these bivalves were very successful with this kind of food. In particular, Megalancistrus parananus, Leporinus obtusidens, and Leporinus macrocephalus may be regarded as potential biological control agents for these invasive populations.

show abstract

“…empty shells provide substrate or refuge for algae, gastropods, freshwater sponges, or other benthic species) (Crooks 2002, Gutiér-rez et al 2003 and be a new food resource for several pelagic and benthic species (Cantanhêde et al 2008). Species from higher trophic levels are expected to consume C. fluminea and its high abundance and biomass may be a very important food source in many aquatic ecosystems.…”

Section: Possible Ecological Effectsmentioning

confidence: 99%

Ecology of the invasive Asian clam Corbicula fluminea (Müller, 1774) in aquatic ecosystems: an overview

Sousa

Antunes

Guilhermino

2008

Ann. Limnol. - Int. J. Lim.

299

232

View full text Add to dashboard Cite

The Asian clam Corbicula fluminea is one of the most invasive species in freshwater aquatic ecosystems. The rapid growth, earlier sexual maturity, short life span, high fecundity and its association with human activities makes C. fluminea a non-indigenous invasive species likely to colonize new environments. This species, originally distributed in Asiatic ecosystems, is now a common inhabitant of American and European freshwater habitats. The present paper reviews the information related to the life cycle, ecology and potential ecological and economic impacts caused by C. fluminea in the invaded habitats. Furthermore, this paper also proposed future works that may be implemented in order to increase our general knowledge about the ecology of this bivalve.

show abstract

Invasive molluscs in the diet of Pterodoras granulosus (Valenciennes, 1821) (Pisces, Doradidae) in the Upper Paraná River floodplain, Brazil

Cited by 54 publications

References 10 publications

Feeding habits and morphometry of Iheringichthys labrosus (Lütken, 1874) in the Uruguay River (Uruguay)

Feeding habits and morphometry of Iheringichthys labrosus (Lütken, 1874) in the Uruguay River (Uruguay)

Fish as Potential Controllers of Invasive Mollusks in a Neotropical Reservoir

Ecology of the invasive Asian clam Corbicula fluminea (Müller, 1774) in aquatic ecosystems: an overview

Contact Info

Product

Resources

About