nekton

Multivariate analysis of nekton composition in Pearl River estuary waters

珠江口游泳生物组成的多元统计分析

Distribution of nekton stock density and its community structure in Taiwan Strait in Summer and Autumn

台湾海峡夏秋季游泳动物资源分布及群落结构

The change of community structure of nekton in the waters off southern Shandong Peninsula in spring

山东半岛南部水域春季游泳动物群落结构的变化

The results of cluster analysis showed that the similarity of nekton community was low in two years , and the community structure had changed .

聚类分析结果表明，两次调查游泳动物群落相似性较低，群落结构发生了变化。

The species composition , biological characteristics and seasonal variation of nekton were analyzed by principal component analysis , regression analysis and hierarchical cluster analysis .

采用主成份分析、回归分析和聚类分析等统计学方法分析游泳生物的组成、生物学及季节变化等特征。

Fishes , crabs , octopus , are part of nekton .

鱼类、蟹类、章鱼都是自游动物的组成部分。

Compared with the result of the early 1960s , the diet composition of small yellow croaker has greatly changed from zooplankton to nekton .

与20世纪60年代初研究结果比较发现，小黄鱼食物组成发生很大的变化，由以往的浮游动物为主演变为目前的游泳动物为主；

If Nekton 's metal creations do succeed in ocean tests and become as capable in the sea as fish , another difficulty may arise : their size means that they might be mistaken as bait .

如果耐顿的这种金属创作在海洋测试中获得成功，能像鱼儿一样适应海洋，有可能会面临另一个难题：这些东西这麽小，很容易会被大鱼当成饵吃掉。

Species richness of nekton community from 2006 to 2007 , in water depth shallow than 60m higher than the 1997 to 1999 , were lower than in the 60m to deep levels from 1997 to 1999 .

2006年~2007年游泳生物种类丰富度仅在60m水深以浅高于1997~1999年，在60m以深均低于1997~1999年水平。

Crenshaw deciphered the algorithm of the twisting motion , known as helical klinotaxis , and assisted Nekton 's team in applying it to the robots , in essence crafting a new guidance technology .

克伦肖解算出「螺旋状调转趋性」这种扭摆运动的运作法则，并协助耐顿研究所的团队设计机器人，基本上是要发展出一种全新的导向技术。

An analysis on the stock density and community structure of nekton in Taiwan Straits indicated that the average stock density was 8.50 kg · h ~ - 1 in Summer and 6.94 kg · h ~ - 1 in Autumn .

结果表明，台湾海峡夏季平均资源密度指数高于秋季，分别为8.50和6.94kg·h-1；

The results indicate that nekton in the waters are mainly coastal or estuarine small body species adaptable to the water environment of high temperature and low salinity , mostly consisting of individuals of the same year , which were the principal parts of the nekton group .

结果表明，珠江口水域的游泳生物主要是沿岸性或河口性的小型种类，基本由当年生个体组成，它们与高温低盐水环境特征相适应，构成珠江口游泳生物组成的主体。