英语人>网络例句>幼鱼 相关的搜索结果
网络例句

幼鱼

与 幼鱼 相关的网络例句 [注:此内容来源于网络,仅供参考]

The water quality should be in accordance with the regulation of 'water quality regulation for fresh water cultivation' during process of megalops larva growing into young crab; supplying fresh minced fish and pig blood for I claver crab; the animal bait before July and after September for young crab culturing is over 70%, and from July to September is over 90%.

在从大眼幼体经仔蟹长成幼蟹的过程中,培育池水质应符合《淡水养殖用水水质》的规定;I期仔蟹后喂新鲜的鱼糜加猪血,豆腐糜;幼蟹培育阶段的七月前、九月后动物性饵料占70%以上,七月至九月期间动物性饵料占90%以上。

A pleasant land it is in sooth of murmuring waters, fishful streams where sport the gurnard, the plaice, the roach, the halibut, the gibbed haddock, the grilse, the dab, the brill, the flounder, the pollock, the mixed coarse fish generally and other denizens of the aqueous kingdom too numerous to be enumerated.

他们睡得就像还活着似的。那真是一片欢乐的土地,淙淙的溪水,河流里满是嘻戏的鱼:绿鳍鱼、鲽鱼、石斑鱼、庸蝶、雄黑线鳍、幼鲑、比目鱼、滑菱鲆、鲽形目鱼、绿鳕,下等杂鱼以及水界的其他不胜枚举的鱼类。

Among the sixteen experimental fishes, they can parasitize and metamorphose successfully on only 5~6 fish species.

实验表明:该幼虫对寄主鱼有一定的选择性,在所试16种鱼中,幼虫只能在5种鱼体上成功地寄生,并变态为幼蚌。

There were lesser and fewer in commercial species and its numbers in the cover net, and the sum of Nemipterus virgatus , Saurida tumbil , Upeneus bensasi , Trachinocephalus myops comprised 95.4% in number and 86.0% in weight of sample catch in the cover net,respectively. The high percentage of juvenile commercial species that were undersized in the codend showed 30.3 mm square mesh codend had more serious damage to most juvenile commercial species, approaching or exceeding 50% in percentage of juvenile species which body length is smaller than fishable size- Trichiurus haumela, Priacanthus tayenus , Navodon tessellatus, Argyrosomus argentatus, Nemipterus bathybius and so on, even exceeding 90% in percentage of juvenile Sepia spp, Loligo spp and Parastromateus niger. In particular, 50% selection lengths ( L 0.5) caught Saurida tumbil and Nemipterus virgatus were smaller than their minimum fishable size.

结果表明,这种规格的方目网囊平均尾数逃逸率为29.76%,平均重量逃逸率为8.46%;出现在套网中的经济种类少、数量少,条尾绯鲤、金线鱼、多齿蛇鲻、大头狗母鱼4种鱼的尾数和重量分别占套网抽样渔获的95.4%和86.0%;网囊中带鱼、长尾大眼鲷、黄鳍马面鲀、白姑鱼、深水金线鱼等鱼种的体长小于可捕标准的个体尾数比例均超过或接近50%,枪乌贼、乌贼、乌鲳等幼鱼尾数比例达90%以上,多齿蛇鲻和金线鱼50%选择体长均未达到最低可捕标准,表明该种规格网囊对多数经济种类幼体的损害比较严重。

The Nile Perch became the lake's predator, destroying the existing species of fish, even devouring its young, and devastating the natural ecology of the lake.

尼罗河鲈成为湖里的猎食者,消灭原有的其他鱼类,甚至吃自己的幼鱼,毁坏了湖泊的自然生态环境。

The results show that all of the oxygen consumption rates and ammonia excretion rates of juvenile turbots of the 6 groups have a slowly increasing trend, and the bigger extent salinity changed, the more distinct trend appeared.

结果表明:盐度改变后,各突变组大菱鲆幼鱼的耗氧率和排氨率都呈现出不同程度的逐渐升高的趋势,随着盐度突变范围的增大,变化趋势更为明显。

The researchers relate the growth of fish farming of British Columbia to losses in young wild salmons.

研究者将哥伦比亚大不列颠渔场的增加与野生三文鱼幼鱼的死亡关联起来。

Based on weight gain rate of juvenile Japanese sea perch, we can conclude that when the water temperature is 28±1℃ and dissolved oxygen was above 5mg/L, the optimum requirement of dietary phosphorus for Lateolabrax japonicus juveniles of an initial mean weight of 23.55±0.17 g, is 1.71% or 17.1 g per kilogram dry diet.

以增重率为评价指标,得到在水温28±1℃,溶解氧大于5 mg/L的条件下,花鲈幼鱼(23.55±0.17g)对饲料中磷的适宜需要量为1.71%,即17.1g/kg饲料。

It is propo sed that the requirement of grass carp fingerling for vitamin K3 is about 1.9 m g/kg diet.

对饲料中维生素K3含量和草鱼凝血时间进行折线回归分析表明:草鱼幼鱼饲料中维生素K3适宜的含量为1.9mg/kg。

This paper dealt with the bioenergetics of a marine economic fish—juvenile threebanded sweetlip Plectorhynchus ...

本文采用群体实验的方法,对海水经济鱼类—花尾胡椒鲷幼鱼的生物能量学进行了研究。

第9/11页 首页 < ... 3 4 5 6 7 8 9 10 11 > 尾页
推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力