As for the trout, Dr. Bradley says his fish have enough trouble breeding on their own for it to be unlikely that they would do well in the wild.
至于鳟鱼,布莱德利博士说,他的鱼在自行繁殖方面已经遇到了足够多的麻烦,因此它们不太可能在野外生存得很好。
As for the trout, Dr Bradley says his fish have enough trouble breeding on their own for it to be unlikely that they would do well in the wild.
至于鳟鱼,布莱德利博士说他的鱼本身在繁殖上就有一些问题,这些问题足以使它们不大可能在野外繁荣昌盛。
Or can they adapt, with acidity-resistant fish breeding fast enough to replace those lost to olfactory disorientation?
或者耐酸性的鱼比被嗅觉扰乱方向的同伴们繁殖得更快而适应并生存下来?
This way local breeding stocks are preserved, meaning that fish catches should remain abundant and stable.
这样便可保护当地的繁殖种群,也就是说可维持充沛和稳定的捕获量。
And this tunnel is going to be used for fish breeding.
而这条隧道也被用于养殖鱼类。
Now some of them are involved in fish-seed production [controlled breeding of fish as in a hatchery], which is more lucrative than fish aquaculture.
现在她们之中的一些人从事鱼苗生产[在孵卵池从事人工养殖鱼苗],这项产业带来的利润比养鱼更高。
Meanwhile the Brackish-water Aquaculture Centre aims to play its part in a process to revive Aceh as one of Southeast Asia's prestige breeding grounds for top-quality fish and shellfish.
与此同时,咸淡水养殖中心努力在将亚齐重建为东南亚鱼类和甲壳类动物顶级质量育苗场之一的进程中发挥作用。
Cesar Sanchez of Mexico's Commission for Natural Protected Areas emphasizes on the conservation also as an economic imperative because of the wetlands' role as fish breeding grounds.
墨西哥自然保护委员会,凯萨山崔斯强调,自然资源的保护,对经济上也是必要的,因为沼泽地扮演了鱼的繁殖场。
Suitable for breeding : arowana, fancy carp, nautilus, map fish, parva etc.
适合养殖:龙鱼、锦鲤、缸鱼、地图、鹦鹉、罗汉等大型高档鱼。
Trawl net, purse Seine, Fish Pond Nets, set net, light net, drag net, golf net, used for catching and breeding in deep sea, Shallow sea, Inland river, Inland Lake and used for sport net.
可制作拖网、围网、网箱、定置网、灯光网、拉网、高尔夫球网等等,适用于深海、浅海、内河、内湖的养殖和捕捕捞以及体育用网。
Overfishing now will reduce the catch later, as will the destruction of breeding grounds for fish.
捕捞过度随后将减少捕获物,也将会破坏鱼的喂养基地。
A new identifying method relating with fish germplasm identifying, the serum transferrin identifying method of breeding fishes was introduced.
本文介绍了与鱼类种质鉴定相关的一种新的鉴定方法———养殖鱼类血清转铁蛋白鉴定法。
This research had important significance in studies on the formation of polyploidy fish and fish breeding.
该研究在探讨多倍体鱼的发生及鱼类遗传育种方面具有重要意义。
Used for breeding of young shrimp and raising of grown shrimp, be acceptable widely for propagate and breed of shrimp, fish and crab in sea or freshwater.
用于虾苗培育和成虾养殖,广泛适用于海水、水虾类、类、类繁殖、殖生产。
It may kill fish and other water animals in the immediate area or prevent them from breeding.
污水源附近的鱼类和其它水生动物可能会死掉或无法繁殖。
Studies on gene transfer present a new approach to genetic breeding of fish.
基因转移的研究为鱼类遗传育种开辟了一条新途径。
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。
Studies on the gene transfer provide an entirely new method to the genetic breeding of fish.
基因转移的研究为鱼类遗传育种开辟了一条全新的途径。
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。
The ultrasonic add oxygen system for fish breeding has positive significance, but currently only found a few countries on ultrasound for fishery.
超声波增氧系统对鱼类养殖有着积极意义,但目前仅发现少数国家将超声波用于渔业上。
Onye Aquatic Animal breeding Company, which was formed in 1983, is specialized in breeding and wholesaling various high-quality ornamental fish in a large batch.
安业水族养殖公司始建于1983年,专业大批量养殖和批发各种高质观赏鱼。
Or can they adapt, with acidity -resistant fish breeding fast enough to replace those lost to olfactory disorientation?
或者耐酸性的鱼比被嗅觉扰乱方向的同伴们繁殖得更快而适应并生存下来?
Gene transfer techniques make a new way for the fish genetics and breeding.
基因转移为鱼类遗传育种开辟了一条新的途径。
In addition they learn something about water chemistry and breeding of fish.
另外还可以学到一些水生物化学和饲养鱼类的知识。
In addition they learn something about water chemistry and breeding of fish.
另外还可以学到一些水生物化学和饲养鱼类的知识。
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