关键词: 斑(鱼祭), 年龄鉴定, 生长特性, 个体生殖力, 东山岛西埔湾

Abstract: 1099 samples of Clupanodon punctatus were collected from Xipu Bay(a semi-enclosed bay with a seawall) of Dongshan Island, Fujian Province,during March 1991 to April 1992. Scales were used to determine their age and growth. The catched fish consist of 5 age classes, among which,class Ⅰ is predominant. The relationship between body length L(mm) and scale radius R(mm) can be expressed bey R=0.0151L-0.2806(r=0. 9944). Parameters of von Bertalanffy body length growth equation are:L_∞=196.48mm,k=0.417,l0=-0.508,and those of net weight growth equation are: W_∞=162.63g, k=0.241,l0=-1.608. Absolute individual fecundity F(eggs) ranges from 7575 to 72621(mean35310), and relative individual fecundities F/L(eggs·mm^-1) and F/W(eggs·g^-1) range from 64 to 445(mean243) and 220 to 1153(mean674) respectively. Ripe eggs are released at least two batches during spawning season, the individual fecundity of the first spawning batch being higher than that of the second one. The ecological parameters given show that the fish belongs to one of the r-selected species.

Key words: Clupanodon punctatus, Age determination, Growth characteristics, Individual fecundity, Xipu Bay of Dongshan Island