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The Quality of Marks Obtained under Different Regimes of Salmon Otolith Marking

机译:鲑鱼耳石标记不同制度下获得的标记质量

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The method of creating otolith marks using specific regimes of rearing water temperature, feeding and photoperiod has been described in many works (including Brothers 1984, 1985; Volk et al. 1987; Brothers 1990; Akinicheva and Rogatnykh 1997). This method allows the creation of marks during the period of juvenile growth in the hatchery, and has been used for the purpose of identification of large managed stocks of fish produced by artificial reproduction.rnThermal marks have been created through rearing the embryos and larvae under the temperature that are periodically different from the background, i.e. from water temperature supplied before the time of marking. Decreased water temperature results in slowing down calcium metabolism in fish creating a clear dark stripe.
机译:在许多工作中已经描述了使用饲养水温,摄食和光周期的特定方式产生耳石标记的方法(包括Brothers 1984,1985; Volk等1987; Brothers 1990; Akinicheva and Rogatnykh 1997)。这种方法可以在孵化场的幼鱼生长期间产生标记,并且已被用于鉴定人工繁殖生产的大型管理鱼类种群的方法。与背景周期性不同的温度,即与标记之前的水温不同。水温降低导致鱼类中钙代谢减慢,形成清晰的黑条纹。

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