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Seasonal changes in a sandy beach fish assemblage at Canto Grande, Santa Catarina, South Brazil
Barreiros, J.P.; Figna, V.; Hostim-Silva, M.; Santos, R.S. (2004). Seasonal changes in a sandy beach fish assemblage at Canto Grande, Santa Catarina, South Brazil. J. Coast. Res. 20(3): 862-870. hdl.handle.net/10.2112/1551-5036(2004)20[862:SCIASB]2.0.CO;2
In: Journal of Coastal Research. Coastal Education and Research Foundation: Fort Lauderdale. ISSN 0749-0208, more
Peer reviewed article  

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Authors  Top 
  • Barreiros, J.P.
  • Figna, V.
  • Hostim-Silva, M.
  • Santos, R.S., more

Abstract
    A shallow-water fish assemblage, over a soft, sandy bottom, at Canto Grande, Santa Catarina, Brazil, was sampled with a beach seine. Sampling was undertaken at 3 h intervals over 24 h on a bimonthly basis between April 1996 and February 1997. There was a seasonal variation in the number of species, density of fishes and biomass with the highest values in February (38 species, 257.6 fish 1000 m-2, 2286.4 g 1000 m-2). A total of 67 species, belonging to 56 genera and 33 families were collected and the assemblage was dominated by seven species belonging to three families: Atherinella brasiliensis (Atherinidae); Brevoortia pectinata, Harengula clupeola and Sardinella brasiliensis (Clupeidae); Anchoviella lepidontostole, Cetengraulis edentulus and Lycengraulis grossidens (Engraulidae). Species diversity (H') and equitability (J') were medium to high throughout the year due to the low dominance. The largest change in the assemblage structure occurred between winter months (July and August) and the other seasons. None of the dominant species can be classified as a resident. Main predators were Pomatomus saltator (winter) and Trichiurus lepturus (summer). Most of the species observed were either juvenile fish or small pelagic and strongly gregarious species.

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