|
|
|
|
|
SILVA,Nathália Carina dos Santos; COSTA,Aluízio José Lopes da; LOUVISE,José; SOARES,Bruno Eleres; REIS,Vanessa Cristine e Souza; ALBRECHT,Míriam Pilz; CARAMASCHI,Érica Pellegrini. |
ABSTRACTResource partitioning is important for species coexistence. Species with similar ecomorphology are potential competitors, especially when phylogenetically close, due to niche conservatism. The aim of this study was to investigate the resource partitioning among populations of two species of lebiasinids (Copella nigrofasciata and Pyrrhulina aff. brevis) that co-occur in a first-order Amazonian stream, analyzing the trophic ecology, feeding strategies and ecomorphological attributes related to the use of food and space by these species. Fish were captured in May and September 2010. The stomach contents of 60 individuals were analyzed and quantified volumetrically to characterize the feeding ecology of both species. Eleven morphological attributes... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Coexistence; Spatial segregation; Copella nigrofasciata; Pyrrhulina aff. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000100025 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
Araújo,Francisco G.; Guimarães,Francisco J. da C.; Costa,Marcus R. da. |
We sampled fish and measured environmental variables in the Sepetiba Bay, a tropical embayment at Southeastern Brazil. The aim was to assess environmental influences on distribution of four abundant species of Sciaenidae Micropogonias furnieri (Desmarest, 1823), Ctenosciaena gracilicirrhus (Metzelaar, 1919), Cynoscion leiarchus (Cuvier, 1830) and Menticirrhus americanus (Linnaeus, 1758) to test the habitat partition hypothesis. Samples were taken between June 1993 and July 1996, at three bay zones (outer, central and inner). Depth was the most important environmental variable to influence fish distribution, followed by transparency. M. furnieri showed significant negative correlation to depth, transparency and salinity, while C. gracilicirrhus showed the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Habitat partition; Spatial segregation; Strategy. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000200025 |
| |
|
|
|