幼鱼

The results showed that fishes of 11 orders, 18 families, and 46 species were represented in Changshu section of the Yangtze river. After the season, the total catch per unit effort increased sharply in the section; the dominant species were mainly commercial fishes such as Coilia ectenes, Mugil cephalus and Parabramis pekinensis and the annual change of dominant species was not obvious. The CPUE of Coilia ectenes had risen up and the trend of resource deterioration had been kept within limits. The caught rate of pintsized and juvenile fish rose markedly. The Margalef's index and Wilhm's index had an evident tendency of rising, while McNaughton's index and Pielou's index waved slightly.

研究结果表明：4~6月间常熟江段出现的鱼、虾、蟹类渔获物共有11目、18科、46种；春禁后，该江段总CPUE显著增加；优势种更替不明显，历年以刀鲚、鲻鱼、长春鳊等经济鱼类为主；刀鲚CPUE有所回升，资源衰退受到遏制；小型鱼类、幼鱼在渔获物中的比例明显上升； Margalef物种丰富度指数、Wilhm改进指数呈明显上升趋势，均匀度指数J′、优势度数Dw在窄幅范围波动。

From March, 2002 to Dcember 2002 the resting metabolic rates for 66 fish of Pelteobagrus vachelli larves, which were collected from Jialing River in Beibbei with weight ranging from 7. 2g to 9.4 g, were measured by continue梖lowing respirometer at the temperatures of 15℃, 18℃, 21℃, 24℃,27℃ and 30℃, respectively.

于2002年3月至2002年12月，以由嘉陵江北碚江段采集到的瓦氏黄颡鱼Pelteobagrus vachelli (Richardson幼鱼作为实验材料，采用流水式呼吸仪，分别在15℃，18℃，21℃，24℃，27℃和30℃水温条件下，测定了66尾鱼体(体重范围7.2——9.4g)的静止代谢率。

This is largely due to the fact that small Lionfish typically snuffle around rockwork, feeding on smaller, slower moving shrimps and crabs rather than chasing fast moving prey items out in the open water.

因为狮子鱼幼鱼多在礁岩密集的区域生活，捕食其中行动缓慢，个体较小的虾蟹，而不是在开阔的水域追逐游泳速度很快的鱼。

The activities and distribution of digestive enzymes in the juvenile, young and adult stages of Chinese Snakehead Channa asiatica were studied. The results showed that activities of digestive enzymes increased with the development of C.

对月鳢稚鱼、幼鱼和成鱼的主要消化酶活性及分布进行了研究，结果如下：①随着鱼体发育和生长，月鳢消化系统各器官组织的各种消化酶活性不断地增强，尤其是蛋白酶和脂肪酶活性的发育更为明显。

The hematic properties and biochemical indices of Epinephelus coioides were studied

研究了斜带石斑鱼血液性状及血液生化指标，并对其幼鱼与成鱼、雌鱼与雄鱼的血液性状及生

Originally belonging to ovoviviparous guppy fish, most fish eggs at the time of Yu in the water, so that the eggs develop into fish, peacock fish, then the first growth in utero into the juvenile fish, and then regenerated down.

原来孔雀鱼属于卵胎生鱼类，大多数鱼在毓时把卵产在水中，让卵发育成鱼，孔雀鱼则先在母体中发育成幼鱼，然后再生下来。

The sound producing system of Sciaenidae is consisted mainly of extrinsic sonic muscle and swimbladder. Because female red drum do not have the sonic muscle, the sonic muscle of young red drum appeared when they were three months old and they were male. Young male red drum started to produce audiable sound at seven months old. The weights of sonic muscles and swimbladders increased with body weights.

石首鱼的发声系统以外接发声肌肉及泳鳔为主，由於雌鱼并无发声肌肉，因此红鼓鱼幼鱼在三个月左右出现发声肌肉者为雄鱼，发育的过程中，发声肌肉、泳鳔的重量随年龄增加而增加，然而雄鱼泳鳔的重量增加情形大於雌鱼。

Effects of salinity on metabolism of juvinile turbotThe metabolism changes of juvinile turbots were determined when the salilnity changed abruptly from 34 tolow levels (28,23,18,12, 8ppt) and to a high level(40ppt).

盐度突变对大菱鲆幼鱼代谢的影响研究了大菱鲆幼鱼由盐度34向低盐(28、23、18、12、6ppt)以及向高盐(40ppt)适应过程中代谢率的变化。

However, enrichment factors of seven intestinal enzymes in intestinal brush border membranes of the early young fish are all above 5.1 except for sucrase.

采用酶学分析的方法，研究了大弹涂鱼前期仔鱼、后期仔鱼、稚鱼和早期幼鱼发育过程中胰腺酶、肠酶和胃蛋白酶活性的变化。

According to the LCso and SC values of pH, Alk, C02, HC03 and C032~, the major mortality factors which effect survival of fish are obtained in different range of Alk and pH.

根据海水妒鱼、黑鳃幼鱼的pH、Alk、C02、HC03一、C03，一半致死浓度和安全浓度，得到在不同Alk、pH范围影响妒鱼、黑绍生存的主要因子。

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。