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众所周知,藤壶牢固地附着在海洋的结构物上,徒手无法将它取下。当藤壶底板处聚集大量次生胶时,用双手就能轻易地取下。我们用这一方法辨别附着在贻贝上的藤壶是否有大量次生胶存在。表面看来,似乎初生胶粘结力比次生胶强,,因而人们会提出这两种胶的化学性质是否相同的问题。李刚等(1978)和严文侠等(1981)分别报道了网纹藤壶初生胶和次生胶生化成份,初生胶旦白含量65.5％,灰分占26.9％;次生胶为
It is well known that a barnacle is firmly attached to the structure of the sea and can not be removed by bare hands. When a large amount of secondary glue accumulates on the bottom of a barnacle, it can be easily removed with both hands. We use this method to identify whether there is a significant amount of secondary glue present in barnacles attached to mussels. On the face of it, it seems that the nascent glue is stronger than the secondary rubber, so one would ask whether the chemical properties of the two gums are the same. Li Gang et al. (1978) and Yan Wenxia et al. (1981) reported the biochemical compositions of primary and secondary gums of netted barnacles. The primary gluten content was 65.5% and the ash content was 26.9%. The secondary gums were