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首页> 外文会议>Workshop on Application of Stock Identification in Defining Marine Distribution and Migration of Salmon >The Use of the Method of Mass Marking of Salmon for the Studies of Age Structure of Wild and Hatchery Adult Sockeye Salmon
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The Use of the Method of Mass Marking of Salmon for the Studies of Age Structure of Wild and Hatchery Adult Sockeye Salmon

机译：鲑鱼大量标记方法在野生和孵化场成年红鲑鱼年龄结构研究中的应用

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Both wild and hatchery sockeye salmon return to the basin of the Bolshaya River. Two hatcheries (Ozerki and Malki) in addition to numerous natural spawning grounds, release from 5 to 15×l0~6 juvenile sockeye salmon annually. Differentiation of wild and hatchery fish requires accurate age reading based on reliable criteria. It has been found that the age marks in the registering structures, including bones, otoliths and scale, can be created not only as a result of seasonal periodic growth, but by using artificial conditions that cause a delay or acceleration of the growth rate (Mma and Klevezel 1970). A reliable method to test the concordance of the number of annual rings in scales and the real age is to study the scales offish of known age (Nikolsky 1974). Therefore, for the hatchery fish, the most accurate method of aging is from reading code-bearing otoliths.
机译：野生鲑鱼和孵化场红鲑都返回到Bolshaya河流域。除众多自然产卵场外，还有两个孵化场（Ozerki和Malki），每年从5到15×l0〜6尾红鲑幼鱼中释放。区分野生和孵化鱼需要基于可靠标准的准确年龄读数。已经发现，不仅由于季节性周期性生长，而且通过使用导致生长速率延迟或加速的人工条件，都可以在包括骨骼，耳石和鳞片在内的记录结构中产生年龄标记。和Klevezel（1970）。一种检验年轮数与实际年龄的一致性的可靠方法是研究已知年龄的鱼的鳞片（Nikolsky 1974）。因此，对于孵化场鱼类，最准确的老化方法是读取带有代码的耳石。

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