Growth and Maturity of the Barnacles Lepas hillii and Lepas anatifera

Growth and Maturity of the Barnacles Lepas hillii and Lepas anatifera
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DOI:
10.1038/1821245b0
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发表时间:
1958-11
期刊:
影响因子:
64.8
通讯作者:
F. Evans
F. Evans
中科院分区:
综合性期刊1区
文献类型:
--
作者:
F. Evans

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信息的增长率的所有物种ofLepasis稀少。斯坦利肯普在给J. F. Anton 1引用了三个来源,其中第一个来源指的是一种未指明的Lepas,它的头状花序长度每天增加约1毫米;第二个和第三个来源指的是L.在8天内增加8毫米,在40天内增加21毫米,在107天内增加25毫米。在所有情况下,这些都是最低费率,因为它们指的是在某一日期已知没有藤壶的船只和浮标,而在另一日期则是所报大小的支持藤壶,而沉降的时间是未知的。
INFORMATION on the rate of growth of all species ofLepasis scanty. Stanley Kemp, in a letter to J. F. Anton1, quotes three sources, the first of which, referring to an unspecifiedLepas, gives an increase in capitulum length of about 1 mm. a day; the second and third, referring toL. anserifera, give increases of 8 mm. in 8 days, 21 mm. in 40 days and 25 mm. in 107 days. In all cases these are minimum rates since they refer to ships and to a buoy known to be free of barnacles at one date and supporting barnacles of quoted size at another, the moment of settling being unknown.