暖冬:瑞典最大湖泊的浮游藻类种群是否受到影响?
Warmer Winters: Are Planktonic Algal Populations in Sweden's Largest Lakes Affected?
暖冬 :瑞典最大湖泊的浮游藻类种群是否受到影响?
Warmer Winters: Are Planktonic Algal Populations in Sweden's Largest Lakes Affected?
用显微镜检与黑白瓶测氧法测定滩涂鱼塘藻类种群及初级生产力。
Microscopy and the method of black and white bottle were used to study algae population and primary productivity in coastal fishpond.
养殖前期使用,能快速培养有益藻类种群,提高水中浮游生物的数量,为鱼虾苗提供充足的天然活饵料。
Using the product in prophase of cultivation will cultivate beneficial algae population to provide early live bait for young fish and shrimp.
磷是水体中藻类种群和密度的第一限制性营养元素,因此在水体富营养化的治理上,可能取决于对磷的控制措施。
Phosphorus is the first limiting nutrient density to the algae populations, and therefore control the eutrophication, may depend on the phosphorus control measures.
试验结果表明:水体增温对水库浮游植物的种群组成、优势种的优势度、藻类密度和生物量均有影响。
The results of investigation and indoor simulated test showed there were effects of increased water bodies temperature on the structure, dominant, density and biomass of phytoplankton community.
藻类食物的种类和品系对角突臂尾轮虫的种群增长率、个体体积、卵体积和相对卵大小均有显著的影响。
Food type and strain affected the population growth rate, body volume, egg volume and relative egg size significantly.
对水有软化 作用,提高清洁能力,但可促进河道产生藻类水花,对鱼类种群有杀伤性。
Phosphates soften water for detergents but contribute to algae blooms in our waterways, which can kill off fish populations.
对水有软化 作用,提高清洁能力,但可促进河道产生藻类水花,对鱼类种群有杀伤性。
Phosphates soften water for detergents but contribute to algae blooms in our waterways, which can kill off fish populations.
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