【摘要】 对海南海区采得的51尾丝蝴蝶鱼(Chaetodon auriga Forstal)年龄与生长的研究表明,其年轮特征主要为切割型,体长(L)与鳞径(R)呈直线相关:L=-3.5730+6.8387R;体长(L)与体重(W)呈幂函数的关系:W=5.9540×10-2L2.8126。应用Von Bertalanffy生长方程拟合该鱼的一般生长规律,其生长参数为:L∞=23.25cm,W∞=420.77g,K=0.2777,to=-0.1579,拐点年龄ti=4龄,拐点体长Li=15.92cm,拐点体重Wi=135.14g。海南海区丝蝴蝶鱼应以2龄、体长10.26cm、体重46.23g为最适合可捕标准。更多还原

【Abstract】 51 species of Chaetodon aurga Forskal were collected and examined from Hainan Sea during July 1995 to March 1997. The scales were used to determine the age and growth of the fish. The chief ring feature of the fish has the cut and fragment type on the scales. The relationship between of the body length (L,cm) and scale radius (R,mm)is expressed as L=-3.5730+6.8387 R and the body length and weight(W,g)is W=5.9540×10-2L2.8126. The growth type between body length or body weight and age of C. auriga may be described by the Von Bertalanffy equation separately as the parasites are: L∞=23.25 cm,W∞=420.77 g,K=0.2777,to=-0.1579. The inflexion point was four years,and the point the body weight was 135.14 g,and body length was 15.92 cm.In fact,the age of rational fishing in Hainan Sea should be two years,the theoretical length of 10.26 cm and the weight of 46.23 g.更多还原