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 Just Accepted

This article has been peer reviewed and accepted for publication. It is in production and has not been edited, so may differ from the final published form.

Assessing surf zone fish assemblage variability in southern Brazil

Fabio Rodrigues, Henrique Cabral, Joao Vieira


Surf zone fish assemblage was investigated to assess their patterns of variability for two sandy beaches in southern Brazil. Fish were collected monthly (July/2009-June/2011), and the hauls were conducted with two different beach seine nets. Generalized linear models were used in two different approaches: 1) a Poisson model to assess and compare fish species richness, and 2) a logistic and gamma models to explain the occurrence and variability in abundance of Mugil liza and Trachinotus marginatus (dominant species). A set of nine explanatory variables was used to explain the patterns of ecological variability. At a large scale, seven variables explain 24.8% of the variance in species richness; and season (16.2%) and beach seine (3.0%) were the most important. The presence of M. liza was associated with beach seine (20.4%), whereas the abundance was associated with beach seine (12.1%) and five other explanatory variables. The presence and abundance of T. marginatus was associated with season (18.6% and 22.3%, respectively). Species richness seems to be strongly related to season, although the choice of net used can play an important role. Warmer months are richer in number of species, and the larger net is able to catch more species than the smaller one.

MF13210  Accepted 28 April 2014
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