THE AGE AND GROWTH OF GASTEROSTEUS-ACULEATUS, PYGOSTEUS-PUNGITIUS AND SPINACHIA-VULGARIS, AS SHOWN BY THEIR OTOLITHS
THE AGE AND GROWTH OF GASTEROSTEUS-ACULEATUS, PYGOSTEUS-PUNGITIUS AND SPINACHIA-VULGARIS, AS SHOWN BY THEIR OTOLITHS
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DOI：
10.2307/1571
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发表时间：
1950-01-01
影响因子：
4.8
通讯作者：
HYNES, HBN
中科院分区：
文献类型：
--
作者：
JONES, JW;HYNES, HBN
关于刺鱼的年龄和生长的文献，以及关于在德顿使用耳石的文献。对鱼类的年龄进行了回顾。本文介绍了刺鱼耳石的摘除、治疗和解释技术。结果表明，尖吻对虾和尖吻对虾在6、7月份在耳石上形成透明环，在7月至次年6月间形成不透明带。在一些耳石中，不透明区域要到9月1日才能看到。这2个种。为最大限度的生活而活。在3.5岁以下，他们中的大多数在第一年就成熟性成熟。生活的一部分。两种都是。在第一年生长迅速，刺参比刺参生长更快。第一年以后。刺参的生长速度下降，似乎几乎停止了生长。这导致不同年龄段的大小有相当大的重叠。组。平均值和最大值的变化。不同种群的大小是由于不同的生长速度，而不是由于寿命的差异。结果表明，刺参耳石中不形成透明环，其耳石中无透明环。这支持了几个工作人员的说法，即它是一种一年生鱼。
The literature on the age and growth of sticklebacks and on the use of otoliths in detn. of the age of fishes is reviewed. Technics for removal, treatment and interpretation of the otoliths of sticklebacks are descr. It is shown that in G. aculeatus and P. pungitius a transparent ring is laid down in the otolith in June or July, followed by an opaque zone laid down between July and the following June. In some otoliths the opaque zone is not visible until Sept. These 2 spp. live for a max. of under 3.5 yrs., most of them becoming sexually mature during their 1st yr. of life. Both spp. grow rapidly during their 1st yr., P. pungitius growing more rapidly than G. aculeatus. After the 1st yr. the rate of growth falls, and growth seems almost to stop in P. pungitius. This results in considerable overlap in size of the different yr. groups. Variations in mean and max. size in different populations of G. aculeatus are shown to be due to different growth rates and not to differences in span of life. It is suggested that the same applies to P. pungitius, S. vulgaris is shown to form no transparent rings in the otolith. This supports statements by several workers that it is an annual fish.