幼鱼

In this paper we present a new method for counting small size juvenile ayu that migrates upriver using a DIDSON.

本文提供了一种基于DIDSON的溯河洄游幼香鱼计数的新方法。

Like the Gila monster, which attacks with venom, inflicting festering but fatal wounds? Or merciless assassin snakes with switchblade fangs as sharp as hypodermic needles and enough poison to kill ten people. And they are smart-alligators that send coded messages, iguanas that run on water and the green turtle that uses magnetic crystals in its brain to navigate across the ocean. A Diamondback rattlesnake can inject a tracer to track its dying prey and baby snakes fish for trout with their tongues!

有毒的西拉晰蝎不致命但会令人非常痛楚；有弹弓刀般毒牙的蛇的毒液足够杀死10个人；聪明的鳄鱼以口令的读息沟通；能在水上跑的晰蜴和脑部有滋场导航的海龟；能在猎物体内注入追踪器的棱背响尾蛇，还有用舌头捉鱼的幼蛇。

Omnivorous, feeding on fish, zooplankton, dipteran larvae and plant matter Ref.

参考文献 41236 杂食性，吃鱼，浮游动物，双翅类昆虫的幼生与植物。

Here, powder-soft beaches are flecked with starfish, shells and coral, and fringed by palms, hibiscus, sea grape and ylang-ylang which scent the air. In the crystal clear waters of the lagoon, baby sharks and the occasional ray swim among shoals of trumpet fish; further out to sea dolphin and flying fish leap before the prows of local dhoni boats.

在这里，幼滑如丝的沙滩缀满海星、贝壳和珊瑚；四周亦种满棕榈树、木芙蓉、海蓬子以及依兰依兰，令空气中洋溢清幽的香气；礁湖的海水清澈透明，小鲨鱼和偶然出没的魟鱼在管口鱼群中游来又游去；远处，海豚和活泼的鱼儿在充满地道特色渔船的船头不断跳跃、翻腾。

Frolicking infants, school children playing tag, and adult arm wrestlers are demonstrating strong, transgenerational and transspecies bonds with the universe of animals --- past, present, and future. Young animals, partitularly, tumble, chase, run, wrestle, mock, imitate, and laugh to the point of delighted exhaustion.

雀跃的幼儿，捉迷藏的学童和成年摔交者展示楚人鱼动物接的有力的跨越世代与物种的永恒的联系——特别是幼兽，它们翻筋斗、追逐、奔跑、扭打、模仿、嘻笑，直到愉快地精疲力尽。

Yolk-sac larva A fish larvae which has already hatched from the egg but has not started feeding yet and still absorbs the yolk in the ventrally attached sac.

卵黄期幼生鱼幼体的发育阶段特徵，描述在消化道区域腹部有一个卵黄囊。鱼幼体已经从卵孵化，但是仍然没有开始觅食而继续吸收在腹附著的卵黄囊。

The misty waterfall of Wuling Farm and the peach orchard at the foothills are classic tourist attractions for many students during summer vacations. In 1991, the wading bird stamps planned by Anderson Yang and published ten consecutive times were in fact based on Chijiawan River and Yousheng River, where Yang obtained most of his samples.

武陵农场烟声瀑布下的水蜜桃园是多少个青年学子每年夏天络绎往返的经典旅游点。1991年作者规划溪鸟邮票就是以七家湾溪，有胜溪为主要的采样点，当时就注意到河鸟口中常衔著晶莹的幼鲑。1995年作者以国宝鱼再次设计「樱花钩吻鲑生活史」邮票及画册。

In situ hybridization and immunocytochemical studies indicated that treatment with 17beta -estradiol increased the number of aromatase-immunoreactive cells and their immunoreactivities, especially in the preoptic area of the hypothalamus, where the density of the aromatase-immunoreactive cells was 2.6 folds higher than the control group. Results indicated that brain aromatase may be involved in the feminization induced by 17beta -estradiol of the grey mullet.

原位杂交和免疫细胞化学定位表明：雌二醇处理组鲻鱼脑内芳香化酶阳性细胞数量和反应强度均提高，尤其在下丘脑视前区，芳香化酶阳性细胞的分布密度为对照组的2.6倍，说明17beta-雌二醇诱导幼鲻雌性化可能与脑芳香化酶的表达有关。

Once they're reunited, baby gets to chow down on regurgitated fish.

一旦它们团聚，幼鸟会吞下反哺的鱼。

"Grackles use their stout, pointed bill to snap up insects, dig grubs from the soil, and kill small vertebrates, including fishes and baby birds; they can also crack hard seeds."

嘴粗壮尖削，用以捕捉昆虫、从土中挖取蛴螬，以及杀死鱼和幼鸟等小型脊椎动物，还可咬碎坚硬的种子。

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。