鱼类耳石研究是鱼类生长和早期生活史研究的基础。
Studies of otolith are the basic of research on growth and early life history of fishes.
硒是鱼类生长的必需元素，硒化合物可提高鱼类的孵化率。
Selenium is an essential element for fish growth. Selenium compounds can improve hatching rate of fish.
并通过数据对比分析溶氧与鱼类生长，饵料系数的相互关系。
O-diffuse oxygen through experiments, and based on data, it analyses between the d.
主要用于增加鱼池水中含氧量，满足鱼类生长发育所需的氧气。
It is mainly applied to increasing oxygen content in fishpond, so as to provide sufficient oxygen required by fish growing.
科学合理地配制饲料是促进鱼类生长，降低成本，提高效益的重要环节。
Compounding the feed scientifically and reasonably is the important link to promote the cultivation of fish , reduce the cost and enhances the benefit.
就生长激素在鱼类应用中的分离及活性鉴定方法、鱼类生长激素基因转移的研究、分泌季节性和药物影响进行简要概括。
A review on methods for its isolation and bioactivity, study on transferred fish growth-hormone gene, its seasonal variation and influence by medicine was done in this paper.
它们的排泄物含有磷，下雨的时候，将被冲刷进入湖中和江河口，耗尽水中的氧气，杀死鱼类，刺激藻类的生长，并且释放温室气体。
Their manure contains phosphorus, which, when it rains, runs off into lakes and estuaries, depleting oxygen, killing fish, stimulating algae overgrowth and emitting greenhouse gases.
为了防止过度生长，水池中只放养了一个品种的鱼类。
To prevent is from becoming overgrown, one breeds fish there.
浮游植物(还有陆生植物)能利用碳水化合物，将其作为“建筑材料”，供生长所需。人类和鱼类也能直接食用植物，以从中得到同样的碳水化合物。
Phytoplankton (and land plants) use carbohydrates as "building blocks" to grow; fish and humans consume plants to get these same carbohydrates.
美国鱼类和野生动物管理处的生物学家皮特·帕塔维纳认为，“从全球来看，适合这个物种生长的栖息地合在一起也不过只有几个停车场那么大。”
Says U.S. Fish and Wildlife Service biologist Pete Pattavina, "Globally, the entire habitat occupied by this species could probably fit in a few big-box-store parking lots."
瓦普斯克地区生长着大约7000支北美驯鹿，以及同样数量的驼鹿，还有无以计数的野兔、鱼类、大雁和其他动物。
Wapusk ishome to some 7, 000 caribou, an equal number of moose and untold numbersof rabbits, fish, geese and other creatures.
这种复杂动物，包括鱼类、鸟类、爬行动物和哺乳动物(如我们人类)，具有高度细化的免疫系统，这样的系统不会允许这些外来生物体在我们的细胞中生长。
This group of complex animals, which includes fish, birds, reptiles and mammals (like us humans) have highly specialised immune systems, which should not let these foreign organisms live in our cells.
通过啃食藻类，食草鱼类会帮助珊瑚礁清理海草，让粉红珊瑚藻得以扎根，形成新珊瑚生长的基质。
By grazing on algae, these and other herbivores keep reefs free of seaweed, enabling pink coralline algae to take hold and form a substrate for new coral.
从下水道或者农场里出来的污染水引起藻类的过度生长，造成水里的氧气严重缺失，以至于鱼类和别的物种相继死去。
Pollution from sewage or farm waste can cause excess algae growth, starving the water of oxygen and causing fish and other species to die off.
当睡莲叶子将整个池子表面盖满时，生长在下面的所有鱼类将因窒息而死去。
When lily pads cover up the whole surface of a pond all fish and other organisms living underneath will suffocate to death.
沿水生长的植物，一些鸟类、鱼类和其他野生动物已经回归。
There are plants growing along the water and some of the birds, fish and other wildlife have returned.
酸雨现象不但导致湖泊酸性提高，使许多鱼类繁殖能力下降；而且随着土壤里酸性物质的增加，树木的生长速度开始放慢，对疾病的抵抗力下降。
The result is increased acidity in lakes, which has curtailed the ability of many fish to reproduce, and in the soil, which has slowed the growth of trees and increased their vulnerability to disease.
蛋白质是组成肌肉组织的主要物质，肌肉的生长和修复都需要它，富含蛋白质的食物包括肉类、鱼类、蛋类、乳制品和豆类。
Protein is a main structural component of all muscle tissues and is needed for muscle growth and repair. Foods rich in protein include meat, fish, eggs, dairy products and legumes.
在更干净的虾类以及藻类生长情况中，咱们哄骗有生命的物质性的协助掩护了鱼类的康健。
We have biological help maintaining the health of the fish from various cleaner shrimp and cleaner wrasses (Lysmata amboinensis and Labroides phthellorophagus).
它已被观察到有机拉丹的“水族馆”的经验更多的疾病问题，并降低鱼类的生长，而脊椎动物关闭或停止繁殖。
It had been observed that "organic laden" aquariums experience more disease problems and reduced fish growth while invertebrates close or cease reproduction.
近年来，随着传统的主要经济鱼类资源的衰减，导致小型经济鱼类获得充分繁殖与生长的机会，其相对与绝对数量明显增加。
The decrease of main valued fish resource in recent years has resulted in the opportunity for full growth and reproduction of small fishes.
一个片段取自名为海洋大头鱼的鳕鱼的亲缘鱼类。这种基因促进生长激素的编码基因的活动。
One, taken from a relative of the cod called the ocean pout, promotes the activity of the gene that encodes growth hormone.
实验结果表明，养殖鱼类血清中的生长激素水平与锌含量呈正相关。
The results showed that level of growth hormone of serum was positively correlated with content of Zn of serum in mariculture fishes.
虽然格林兰鲨是全球最大的鱼类之一，它们每年只生长1厘米左右。
While Greenland sharks are among the largest fish in the world, they only grow about one centimeter a year.
虽然格林兰鲨是全球最大的鱼类之一，它们每年只生长1厘米左右。
While Greenland sharks are among the largest fish in the world, they only grow about one centimeter a year.
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