The concentrations of Cu , Cr , Cd, Pb and Hg in the water and in fresh water animals, collected from 3 different localities in Shanghai , were studied by an atomic absorption spectrometer.
用原子吸收分光光度计测定了上海市郊奉贤、青浦、浦东新区不同水体及鲫鱼(Carassius auratus)、中华绒鳌蟹(Eriocheir sinensis)、日本沼虾(Macrobrachium nipponease)等9种淡水动物体内的铜、铬、镉、铅、汞5种重金属的含量,以9种淡水动物的5种重金属元素含量和相应水环境中的元素含量的大量实验数据为基础, 分析了淡水动物体内重金属的生态化学特征。
Cladocerans and copepods are two imp ortant components in freshwater zooplankton.
枝角类和桡足类是淡水浮游动物的主要组成部分。
marine or freshwater animals that form colonies of zooids.
形成游动孢子群的海洋或淡水动物。
mostly freshwater protozoa.
主要是淡水原生动物。
small freshwater decapod crustacean that resembles a lobster.
小型淡水十足甲壳动物，象龙虾。
a family of Notostraca.
小型淡水甲壳纲动物的一科。
small freshwater crustaceans with a shield-shaped carapace.
小型淡水甲壳动物，长有盾牌状甲壳。
small freshwater crustaceans with a shield-shaped carapace
长有盾牌状甲壳的小型淡水甲壳动物
tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell.
微小的海水及淡水甲壳动物，身体象虾，双壳。
Acute Toxic Effect of Abamectin on Fresh-water Aquatic Animals
阿维菌素对几种淡水水生动物的急性毒性作用
freshwater carnivorous mammal having webbed and clawed feet and dark brown fur.
淡水食肉哺乳动物，脚有蹼和爪，深褐色皮毛。
minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants.
微小的圆锥状腹足动物，表面象帽贝但生活在淡水中并以淡水植物为食。
marine or freshwater bivalve mollusk that lives attached to rocks etc..
附着在岩石等物上的海水或淡水双科类软体动物。
primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas.
远古水生且主要是淡水甲壳动物；仙虾；卤虾；鲎虫；罐头虾；水蚤。
Kuang Puren， Qian Jinhui1991 Economic Fauna of China-Parasitic Crustacea of Freshwater Fishes. Editorial Committee of Fauna Sinica， Academia Sinica. Science Press， Beijing， China.
匡溥人、金会1991中国经济动物志：淡水鱼类寄生甲壳动物。科学出版社。
"Seafood: Edible aquatic animals excluding mammals, But including Both freshwater and ocean creatures."
海味:可食用的水产动物,既包括海水生物也包括淡水生物,但哺乳动物除外。
primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue.
原始的似鳗的淡水或淡水中产卵的圆口纲脊椎动物，它们有长有吮吸嘴，嘴内有锉舌。
Laboratory-scale Study on Single Soldier Hand Device of Seawater Desalination
手动单兵海水淡化器的制淡实验研究
There are about45.000 species of chordates, occupying marine, fresh and brackish water and terrestrial habitats.
有大约45.000种脊索动物，它们占据着海、水或淡咸水和陆地的生态环境。
Any of various species of cold-Blooded vertebrates found worldwide in fresh and salt water.
见于世界淡水或咸水的各种冷血脊椎动物的泛称。