The structure of the spine of the spur dogfish (Squalus Acanthias L.) and its use for age determination
The structure of the spine of the spur dogfish (Squalus Acanthias L.) and its use for age determination
复制标题
角鲨（Squalus Acanthias L.）的脊柱结构及其在年龄测定中的应用
DOI：
10.1017/s0025315400001302
复制
发表时间：
1962
影响因子：
1.2
通讯作者：
P. Meadows
中科院分区：
文献类型：
--
作者：
M. Holden;P. Meadows
SUMMARY The external and internal structure of the spines of Squalus acanthias are described. Internally the spines consist of a series of dentine cones laid down one within the other. This series is reflected in the external structure by bands of pigment associated with ridges of enamel. The latter are proved to be annual. The use of the spines for age determination is discussed and the growth parameters and growth curves calculated. The results obtained differ from those of previous authors, whose work is critically discussed.
