... fish species composition 鱼种组成 These Native Species Composition 这些土着人种构成 Tree Species Composition 树种组成 ...
基于24个网页-相关网页
composition of fish species 鱼类种群构成
According to the data selected from bottom trawl fishery resource monitoring in the East China sea from 1997 to 2000, the species composition and seasonal variation of small-sized fish were analysed.
根据1997 ~ 2000年东海区底拖网渔业资源调查资料，分析和讨论了东海区小型鱼类的种类组成和季节变化。
The results indicated that except reef fish, the seasonal changes of fishery species composition in seaweed bed (SB) were much more obvious than those out of the seaweed bed (OSB).
结果表明，枸杞岛海藻场内的渔业生物组成的季节变化比藻场外明显，但岩礁性鱼类除外；
A study was carried out on species and specific composition of aquatic microorganisms in fish-rice ecosystem in soda saline-alkaline land of the Songnen Plain.
对松嫩平原苏打盐碱地养鱼稻田水体微生物数量及种类组成进行了初步研究。
应用推荐