• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Russian journal of marine biology >The Comparative Characteristics of Naturally Produced and Hatchery-Reared Juvenile Pink Salmon, Oncorhynchus gorbuscha (Walbaum, 1792), from Sakhalin Oblast
【24h】

The Comparative Characteristics of Naturally Produced and Hatchery-Reared Juvenile Pink Salmon, Oncorhynchus gorbuscha (Walbaum, 1792), from Sakhalin Oblast

机译：来自萨哈林州的天然生产和孵化饲养少年粉红色三文鱼（Walbaum，1792）的对比特征，来自Sakhalin Oblast

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The body size and weight characteristics were analyzed and the morpho-physiological condition of the system of internal organs was studied in wild juvenile pink salmon caught from five rivers during downstream migration, as well as in hatchery-reared juveniles collected prior to release from all 22 salmon hatcheries of Sakhalin Oblast where they were produced in 2016 and 2017. It was found that the body weight of wild juvenile pink salmon from different rivers and in different years varied significantly. Hatchery-reared fry before release were 1.5-2.5 times larger than wild ones on average; at different hatcheries, the body weight of fry closely correlated with the sum of the accumulated degree-days. All fry from natural spawning grounds during the downstream migration had remnants of a yolk sac, although some of them were already actively feeding in fresh water. Hatchery-reared fry, irrespective of their growth rate, also retained yolk sac remnants before release. In all groups of wild and hatchery-reared juveniles different variants of the micromorphological organization of hepatic parenchyma were identified.
机译：分析体型和体重特征，在下游迁移期间，在五条河流中捕获的野生少年粉红鲑鱼系统的态ju粉鲑鱼及其在所有22次释放前收集的孵化器饲养的青少年Sakhalin Oblast的Salmon Hatcheries他们在2016年和2017年制作。发现，来自不同河流的野生少年粉红鲑鱼的体重和不同年份的大量不同。孵化场饲养在释放前比野生饲养比野生饲养的饲养;在不同的孵化场，Fry的体重与累积度天的总和密切相关。在下游迁移期间，来自自然产卵场的所有乳物都有一个蛋黄囊的残余，尽管其中一些人已经积极喂养淡水。孵化场饲养炒，无论它们的生长速度如何，也在释放前保留了yolk囊残留物。在所有野生和孵化饲养的幼年群体中，鉴定了肝实质肝脏微观组织的不同变体。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号