LENGTH-WEIGHT RELATIONS FOR 20 FISH SPECIES FROM THE PEARL RIVER, CHINA.

The length-weight relations (LWR) were estimated for 20 fish species from the Pearl River, South China. A total of 3610 specimens representing 10 families were used to estimate the relation parameters. The b values in the LWR (W = aL^b) ranged from 2.068 for Odontamblyopus lacepedii (Temminck et Schlegel, 1845) to 3.423 for Pseudogobius javanicus (Bleeker, 1856). The LWR with high coefficient of determination (r²) is significant for all the species. The r² value ranged from 0.919 to 0.993. This study presents the first reference on length-weight relations for 7 species and new records of maximum total length for 6 species. The results may be helpful in future fisheries studies in this areas. [ABSTRACT FROM AUTHOR]