THE INFLUENCE OF OCEANOGRAPHIC FACTORS ON THE AVAILABLE OF GROUPER (Ephinephelus spp) IN NEAR SHORE HABITAT

ABSTRACT: Grouper is a common species that is  found in a variety of habitats; coral and rocky reefs, tide pools, estuaries, mangrove swamps and sandy/mud bottom.   The goal of this research was to quantify  the  influence  of  oceanographic  factors  such  as  sea  surface  temperature,  salinity,  tide height, lunar day  on the available  and species composition of groupers.  The surface temperature ranged from 25,5 to 31.3 0C.  Salinity ranged  from 25.3 to 31.2 ppt. The abundance of grouper at south costal of Bulukumba was not significantly correlated with temperature and salinity variation. Grouper caught within set net was significantly different among the four lunar days. Ephinephelus suillus and E. mallabaricus were  most abundant on near shore habitat.  The total length of grouper caught  within set net ranged from 5.1 cm to 14.6 cm.  The results indicate clearly that this habitat was  important  for  growth  of  grouper  juvenile.  Similarly,  management  and  conservation  of  these species must be implemented.   
Key Words: grouper, sea surface temperature,  salinity, tide
Author: Musbir
Journal Code: jpperikanangg090010

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