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作 者:张其永[1] 洪万树[1] 胡卫江 袁骐 金彬明[1]
机构地区:[1]厦门大学海洋学系,厦门361005
出 处:《应用生态学报》1993年第4期410-417,共8页Chinese Journal of Applied Ecology
基 金:福建省自然科学基金
摘 要:本文研究福建东山岛西埔湾港养1099尾斑(鱼祭)的鳞片年轮、渔获年龄结构和体长频率分布,并结合周年逐月的生物学资料,对其体长与鳞长、体长与体重、肥满度、相对增长率和生长指标以及个体绝对生殖力和相对生殖力作了分析。生长参数拟合的生长方程能够反映其生长规律。依据生活史生态学参数,斑(鱼祭)应归属于r选择型。文中还讨论了西埔湾港养斑(鱼祭)资源的合理利用和增养殖措施。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,l_0=-0. 508,and those of net weight growth equation are: W_∞=162.63g, k=0. 241,l_0=-1. 608. Absolute individual fecundity F(eggs) ranges from 7575 to 72621(mean 35310), and relative individual fecundities F/L(eggs·mm^(-1)) and F/W(eggs·g^(-1)) range from 64 to 445(mean 243) and 220 to 1153(mean 674) 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.
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