| 文蛤年龄的研究 |
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| 引用本文： | 张建中,李复雪.文蛤年龄的研究[J].水产学报,1988,12(3):251-258. |
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| 作者姓名： | 张建中 李复雪 |
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| 作者单位： | [1]山东海洋学院水产系 [2]厦门大学海洋系 |
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| 摘 要： | 本文采用透光法鉴定文蛤的年龄．当贝壳在光透射下，条纹清晰显出。贝壳的亮带形成是在5月至10月，暗带则在10月至翌年的5月间形成。不同年龄组的亮带和暗带形成的时间没有差别。通过贝壳的亮、暗分界线，可以判断文蛤的年龄。
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| 关 键 词： | 不同年龄 透光法 鉴定 光透射 研究 贝壳 差别 文蛤 |
DETERMINATION OF AGE OF THE ASIAN HARD CLAM,MERETRIX MERETRIX(LINNAEUS) |
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| Zhang Jianzhong and Li Fuxue.DETERMINATION OF AGE OF THE ASIAN HARD CLAM,MERETRIX MERETRIX(LINNAEUS)[J].Journal of Fisheries of China,1988,12(3):251-258. |
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| Authors: | Zhang Jianzhong and Li Fuxue |
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| Institution: | Zhang Jianzhong,Li Fuxue Department of Oceanography,Xiamen University |
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| Abstract: | The age of clam can be determined by light penetration method.When a common light penetrates the shell of clam, the stiped pattern on the shellappears clearly. The bright and dark portions of the stripes are formed respectivelyfrom May to October and from October to Mae of the next year. The time of forma-tion of dark and bright portion is very definite among all of the age groups. There-fore, the absolute age of clams can be datermined by the bright-dark boundary onthe shell or clam. |
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| Keywords: | asian hard clam Meretrix meretrix(Linnaeus) age determination |
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