幼鱼

In this paper, juvenile Amur sturgeon was targeted and set different levels of salinity, pH and capture time, we investigated the regulations of acute salinity stress, chronic salinity, pH and capture stress on growth performance and physiological system of Amur sturgeon, Acipenser schrenckii.

本研究以施氏鲟稚鱼和幼鱼为对象，设定不同盐度水平、pH范围和捕捞时间，完成了急性盐度胁迫、慢性盐度和pH联合作用以及慢性盐度胁迫下急性捕捞胁迫对施氏鲟血液生理、生化、生长、免疫等部分指标的测定。

Engraulis japonicus ; egg ; larva ; embryo development ; environmental conditions ; the Northern of East China Sea ; the Southern of Yellow Sea

鳀； 鱼卵；仔稚幼鱼；胚胎发育；环境条件；东海北部；黄海南部

GnRH-ir fibers distribute in the various brain region from the olfactory bulb to the cerebellum. They are especially abundant in the hypothalamus, the preoptic area and the ventral telecephalon. The immunopositive reaction in precocious fish is evidently stronger than that in unprecocious fish, and there is only very weak reaction in the gonadal undeveloped fish. The differences are most obvious in the hypothalamus, but not in other areas.

性早熟大黄鱼的神经内分泌细胞对GnRH抗血清的免疫阳性反应明显，无论在细胞的数量和免疫强度都比未早熟鱼多和强，在性腺尚未发育的幼鱼脑中仅有弱的免疫阳性，这种差异在下丘脑外侧结节核及视前核处最为明显，在其它GnRH阳性部位则差异不显著。

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。

In Europe they are processed and sold as kippered herring ; in eastern Canada and the northeastern U.S., most of the herring used are young fishes canned as sardines.

在欧洲被加工并制成熏鱼来卖。在加拿大东部和美国东北部，供食用的鲱鱼大部分是幼鱼，制成沙丁鱼罐头。

In Europe they are processed and sold as kippered herring; in eastern Canada and the northeastern U.S., most of the herring used are young fish es canned as sardines.

在欧洲被加工并制成熏鱼来卖。在加拿大东部和美国东北部，供食用的鲱鱼大部分是幼鱼，制成沙丁鱼罐头。

In Europe they are processed and sold as kippered herring; in eastern Canada and the northeastern U.S., most of the herring used are young fishes canned as sardine s.

在欧洲被加工并制成熏鱼来卖。在加拿大东部和美国东北部，供食用的鲱鱼大部分是幼鱼，制成沙丁鱼罐头。

It was suggested that limiting purse seining with fish attractive device could alleviate over-exploitation on young fish and prevent from recruitment overfishing that would result in resource depletion exemplified by yellowfin tuna fishery in the Indian Ocean.

以印度洋黄鳍金枪鱼渔业为例，计算了其补充型过度捕捞的生物学参考点，提出限制围网诱鱼装置作业，减少幼鱼资源的过度开发，防止补充型过度捕捞发生引起资源的衰退。

The edible young of esp. herrings and sprats and smelts.

可食用的青鱼、鲱鱼和胡瓜鱼的幼鱼。

I generally try to extract the fry before they leave home. This can be tricky since the length of time from wigglers to free swimmers can vary.(usually between 10 and 14 days).

我一般总是在幼鱼没有离开雌鱼的时候，就将其分离出来，一般是在卵开始蠕动到自由游动的期间（通常是10~14天）。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了