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首页> 外文期刊>Journal of Ichthyology >Dynamics of the Reproduction Period of the Sea Raven Hemitripterus villosus (Hemitripteridae) in the Southwestern Part of Peter the Great Bay: Results of 20-Year Monitoring (1997—2016)
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Dynamics of the Reproduction Period of the Sea Raven Hemitripterus villosus (Hemitripteridae) in the Southwestern Part of Peter the Great Bay: Results of 20-Year Monitoring (1997—2016)

机译：彼得西南部的海乌鸦胚胎百叶草（Hemitripteridae）的繁殖期的动态：20年监测结果（1997-2016）

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摘要

The reproduction period of the sea raven Hemitripterus villosus were studied by visual SCUBA-div-ing methods in 1997-2016 in Peter the Great Bay, the Sea of Japan. It has been found that the beginning and the end of the spawning period shifted to a later date (5-12-day shift) in particular years, which is explained by the increased water temperature at the spawning grounds by 1.6-2.5 deg C in September—October. The degree of damage of the open egg masses has greatly increased (from 35.2 to 60.4%), the main predator is the sea urchin Mesocentrotus nudus. The observed changes in the timing of reproduction and an increase in the degree of egg consumption by predators are not critical factors for reducing the abundance of the sea raven.
机译：海洋乌鸦·血珠犬的繁殖期由1997 - 2016年在日本大海的彼得大湾的Visual Scuba-Div-Ing方法研究。 已经发现，产卵期的开始和结束在特定年内转移到以后（5-12天的班次），这是通过将产卵场的水温增加到1.6-2.5℃的水温来解释 九月十月。 开放蛋质量的损害程度大大增加（从35.2％到60.4％），主要的捕食者是海胆Mesocentrootus Nudus。 捕食者繁殖时间和蛋蛋消耗程度的增加的观察到的变化不是减少海洋乌鸦丰富的关键因素。

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