Resumen

PALACIOS-MARTINEZ, Gerardo Emigdio. Shallow reef fishes around “La Viuda” rocky islet, Golfo Dulce, Costa Rica. Rev. biol. trop [online]. 2015, vol.63, suppl.1, pp.329-338. ISSN 0034-7744.  http://dx.doi.org/10.15517/rbt.v63i1.23112.

Rocky reefs maintain a high diversity of organisms. Differences in fish community could be expected by seasonal events and wave action on rocky reefs. I studied “La Viuda” rocky islet, Golfo Dulce, CostA Rica (8°37’33” N - 83°14’08” W) with Bohnsack and Bannerot visual census methods four times between February and December 2002. I identified 28 species and the most abundant families were Pomacentridae and Labridae. Shannon-Wiener diversity was between 1.1 and 1.73 nits/ind., and Pielou 0.43. There is a higher diversity in the dry season and in areas protected from wave action. Rev. Biol. Trop. 63 (Suppl. 1): 329-338. Epub 2015 April 01.

Palabras clave : fish community; rocky reefs; Golfo Dulce; visual census; pH; temperature; Secchi disc; salinity.

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