查询词典 spawning

Technical details on gravid fish selection, spawning inducement, and larvae breeding were summarized in this paper.

对亲鱼选择、催产方法、孵化与苗种培育等技术细节进行了讨论。

In order to protect the spawning and reproduction of fish and enhance the fisheries resources, Harbi City carried out its fishing period from May 25 to 10 July in all of natural fishing ground.

为了保护鱼类的产卵繁殖，增加渔业资源，哈尔滨市於5月25日起至7月10日，进入自然捕捞水域的禁渔期。

The spawning area was successfully outlined to the west of the Mariana Islands in 1991, and other research suggests that their recruitment success may be related to El Nino events, which appear to affect the transfer of leptocephali from the north equatorial current into the Kuroshio Current.

在1991年的时候人们也已经基本的弄清楚了它的产卵区域，有人也认为它的洄游和厄尔尼诺事件是及其相关的，厄尔尼诺似乎会影响苗从北赤道流进入黑潮流系的过程。

From otoliths, the spawning times of these three species are all estimated to occur much later in the year than when small leptocephali are found at sea, indicating that ages appear to be underestimated.

从耳石来看，这三种鳗的产卵时间按照耳石推断出来都比实际发现柳叶鳗的时间要晚一些。

A Lagrangian model is presented of the current-carried migration of the leptocephali of the European eel across the North Atlantic Ocean from the spawning area in the Sargasso Sea to the adult range in Europe and North Africa.

拉格朗日模型模拟了欧洲鳗的幼体随流洄游，横过北大西洋从马尾藻海的产卵场到欧洲和北非的成体生活区域。

This study reviewed literature on spawning times for three north temperate species of anguillid eels estimated by sampling for small leptocephali at sea and for several temperate and tropical species by back-calculating from putative daily ages derived from otolith increment analysis of glass eels that recruited to coastal waters.

本文通过研究了海里采集鳗鲡幼体总结出的三种北温带种类的鳗鲡的产卵时间，并且通过通过分析溯河洄游到淡水的鳗苗的耳石日龄倒推出的产卵时间，将二者进行比较研究。

Hainan and Taiwan farther north provide something of an outer boundary for the South China Sea and East China Sea respectively—comparisons are often made between these semi-enclosed seas and the Mediterranean. The warm monsoonal waters are rich spawning grounds for fish and other marine species.

海南和台湾北部能为南中国海和中国东海提供更多的边界往往是得到了一些半封闭海和地中海，温暖的季风性气候下的海水是鱼类和其他海洋生物繁衍的好地方。

Similar to Atlantic salmon, but unlike their Pacific Oncorhynchus kin, steelhead are iteroparous and may make several spawning trips between fresh and salt water.

与大西洋鲑类类似，但不像他们的太平洋大马哈鱼近亲，刚头可以在幼态与性成熟态之间转换，在海水和淡水之间完成数次产卵旅程。

In some river systems, such as the Puyallup, steelhead declines have become perilous, with spawning steelhead dropping from thousands to hundreds in a half-dozen years.

在一些河流系统中，如Puyallup河，虹鳟鱼的数量下降已经到了非常危急得境地，在6年中，虹鳟鱼产卵数量从成千上万跌落到只有几百。

It has been four years since Mr. Iwanaga started to feed sierironisiki which is still being called bristol Shubunkin at that time. During these years it brings many thoughs and feelings for him with more or less 30 times of spawning and the following is his experiences and understandings in breeding of sierironisiki.

岩永先生饲养寿惠广锦已经有四个春秋了，当时它还被称作布鲁斯顿朱文金，在这几年的饲养过程中，经过了大大小小的30次的繁殖产卵，由此感触颇多，接下来便简单分享一下关于寿惠广锦繁殖方面的心得体会。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。