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- Study on fish species composition and diversities captured by drift net from Xiamen eastern sea 厦门东海域流刺网渔获鱼类种类组成及其多样性分析
- Fish Status Survey of Nordic Lakes: Effects of Acidification, Eutrophication and Stocking Activity on Present Fish Species Composition 北欧湖泊鱼类状况调查:酸化、富营养化和放养活动对现有鱼类品种组成的影响
- fish species composition 鱼类物种组成
- Too deep - One fish species for each metre over 15m per buddy pair. 太深-每次下潜超过15米将被删除一个鱼类记录。
- About 120 freshwater fish species are indigenous to Hong Kong. 有大约一百二十个淡水鱼品种是产于香港的。
- In total, 215 bony fish species from 86 families were recorded. 硬骨鱼类至目前为止共计出现86科215种；
- Overfishing, which depletes populations of commercial fish species. 捕捞过度，耗尽商业鱼品种的群集。
- The biota on an island endures constant turnover in species composition. 面积越小、隔离程度越高，生态释放效应更明显。
- HKU Diving Team won the Champion award by spotting 90 fish species in 8 hours. HKU Diving Team在8小时内共录得90种鱼类,获得观鱼比赛冠军大奖。
- But the population plunged in the smallest fish species,the fathead minnow. 然而最小的鱼种，黑头呆鱼的数量却发生了变化。
- The species composition and characteristics of mangrove flora in the world were reviewed and discussed. 探讨了世界红树林植物区系的种类组成及其特点。
- Species richness and evenness were unrelated to similarity in species composition. 物种丰富度和均匀度均与物种构成上的相似性没有显著相关关系。
- The species composition of mollusca were markedly difference in different sediment. 不同底质的红树林区软体动物组成有显著差异。 污染可能是造成沙头角红树林区软体动物多样性低的重要环境因子。
- Objective To investigate species composition of gamasid mites,chigger mites and flea on the rodent in Zhuhai Port. 目的调查珠海口岸地区鼠体表寄生虫蚤、革螨、恙螨、蜱、吸虱的种群组成。
- Transect A line or belt designed to study changes in species composition across a particular area. 样条：在一个特定区域中划分出的一条样带，用以研究物种组成的变化情况。
- The Danube delta hosts over300 species of birds as well as45 freshwater fish species in its numerous lakes and marshes. 多瑙河三角洲不计其数的湖泊和沼泽哺育着300多种鸟类和45种多瑙河及其支流中特有的鱼类。
- The species had high diversity in species composition, clear layers of arbors, shrubs and herbages. 总体上物种多样性高，种类组成复杂，群落乔木层、灌木层、草本层层次明显。
- It is one of the highest valued food fish species and demand increases as their numbers become fewer. 苏眉是价值最高的食用鱼品种之一,数量日渐稀少,需求却愈益上升。
- The species composition and distribution of C. glauca community on Karst hills were mainly affected by the slope. 坡度的变化是影响岩溶石山青冈栎群落物种组成与分布的重要生态因子。
- From the cytogenetic perspective, only a small proportion of fish species have heteromorphic sex chromosomes. 几十年的细胞遗传学研究表明,鱼类性别决定几乎包括了动物的所有性染色体类型。
