【摘要】 彩虹明樱蛤种群的年龄组成以1~+、2~+龄为主,分别占总数的45.78％相36.65％。生长过程中壳形保持不变。各生长参数间的回归关系良好。彩虹明樱蛤的性成熟年龄为1足龄;属一次成熟分批产卵类型;在6月底至7月初和7月底至8月底有两次产卵高峰。属终生生长型贝类。采捕期应定为4～6月,采捕规格2~+龄,壳长约17mm。更多还原

【Abstract】 One-year-old group and two-year-old group accounted for 45.78% and 36.65% respectively in the population of Moerella iridescens in the investigation. Few changes were observed in their shell pattern’s during the growing period and in fact, the clam kept growing all life long. The clam became sex matured at 12 months and spawned in batches with two spawning peaks occurring between late June and late August. The regression equations between the shell length, height, width, total body weight and shell weight have been established. On utilization of the clam, it is suggested the fishing season start in April and end in June, and the clam to be caught be over two years old and more than 17mm in shell length.更多还原