Oil Spill Would Threaten Mangroves, Spawning Fish
石油泄漏会威胁到红树林和产卵的鱼类
Many fishermen are convinced that much of the oil is suspended in the water column or has drifted to the bottom, where it's impacting oyster beds, crab herds, and spawning fish schools.
很多渔民确信不少油污正悬浮在下潜水流中，这会影响到牡蛎养殖场，螃蟹的繁殖和产卵的鱼群。
A main objective is to protect spawning and young fish.
一个主要目的是保护产卵的鱼和幼鱼。
The mean weight of fish caught is also dropping, which worries the research institute greatly, though the biomass of spawning stock has increased slightly since 1985.
被捕获的鱼的平均重量也在减小，这正是研究机构大为担忧的，尽管产卵鱼的总存量从1985年以来已略微增加。
Once the animals die, the rocky structures erode, depriving fish of vital spawning and feeding grounds.
一旦这种动物死亡，礁石结构将会受侵蚀，作为鱼类至关紧要的产卵及进食的重要场所也不复存在。
They provide spawning grounds and nutrients for fish and shellfish.
它们为鱼类和贝类提供产卵场所和营养物。
But the biggest culprit was the Edwards Dam — a small stone-and-timber structure built in 1837 for hydropower generation that blocked the fish from reaching their spawning grounds.
但是最大的原因是在1837年由小石头和木材构建的爱德华兹水坝，它被用来水力发电，水坝阻拦了鱼群到达它们的产卵地。
As they headed for their spawning grounds, the 20m fish quickly came together in a school the size of Manhattan.
当鲱鱼前往产卵地时，这种20厘米长的鱼会很快聚集，并形成一个规模堪比曼哈顿区的鱼群。
That part of Louisiana contains some 40 percent of the nation's wetlands and is spawning grounds for countless fish and birds.
毕竟，路易斯安那拥有美国40%的湿地资源，为不计其数的鸟和鱼类提供生存场地和食物来源。
When herring migrate toward their spawning grounds, they run in schools extending as long as 17 miles and containing millions of fish.
当鲱鱼向产卵地迁移时，它们那数百万成员的队伍绵延可达十七英里。
Every season, even in the goldfish spawning aquatic or in an aquarium, so the goldfish in brown eggs hatch, small grass and even after such points, according to a fish eating fish and string.
每年金鱼产卵季节，还要在鱼缸中放一种水草或棕，以便金鱼产卵在草上，小鱼孵化后还要按类分盆，以免串种和大鱼误食小鱼。
Recent globefish are spawning season, fish poisoning is consumption of high-risk period.
三是河豚。近期是河豚产卵季节，也是食用河豚中毒的高危险期。
The sharks congregated in two areas, with one group feeding on the fish eggs of spawning little tunny (Euthynnus alletteratus), a member of the mackerel family;
鲸鲨聚居在两个区域，一群以小鲔（学名Euthynnusalletteratus），产的卵为食，小鲔属鲭科；
The spawning times, absolute fecundities, age structures of breeding population, and spawning types of fish were also studied.
测定分析鱼类生殖力、产卵期、繁殖群体的年龄结构及产卵类型。
These deep sea ecosystems provide shelter, spawning and breeding areas for fish and other creatures, as well as protection from strong currents and predators.
这些深海生态系统为鱼类和其它生物提供生存、产卵、繁殖的场所，俄保护它们免遭大海流和猎食者的侵袭。
Eggs and larvae found a total of 43 kinds, and the Pearl River estuary region are fish spawning year.
发现鱼卵及仔鱼共43个种，并且珠江口区域全年都有鱼类产卵。
Materials used are taken from the experiments of artificial fertilization made during the spawning season of the fish at Rizhao county, Shandong province in 1959.
材料于1959年生殖季节在山东省日照县涛雒口进行人工授精所得。有趣的是记录到黄姑鱼早期仔鱼的二个特有特征。
Materials used are taken from the experiments of artificial fertilization made during the spawning season of the fish at Rizhao county, Shandong province in 1959.
材料于1959年生殖季节在山东省日照县涛雒口进行人工授精所得。有趣的是记录到黄姑鱼早期仔鱼的二个特有特征。
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