fish density 中文意思是什麼
fish density
解釋
魚群密度-
Meanwhile, the study also shows that the diversity of studied cave animals is inversely proportional to human population density and water quality ; and bio - diversity, to some extent, is proportional to soil fertility and amount of chemical fertilizer, but inversely when excessive ; the correlativity between bio - diversity and vegetation cover rate is not obvious, when ground vegetation is strongly interfered by human being ; the amount of diestrammena marmorata is proportional to the d iversity of plant, and inversely proportional to soil fertility, and in a way, to water quality ; and the correlativity between community and water quality and soil fertility, and between water quality and the amount of mosquito and fly, is not as good as expected. the author points out that diestrammena marmorata, bat, mosquito, fly, oreolalaxrhohostig metus ( or cudata ), and fish can be chosen as in
同時，研究還表明：調查洞穴的物種多樣性與人口密度、水質成負相關；在一定范圍內，物種多樣性與化肥施用量、土壤肥力成正相關，超過一定的值則成負相關;在人類對地表植被的高強度作用下，物種多樣性與植被覆蓋率的相關性不明顯;蚊蠅數量與土壤肥力基本上呈正相關;斑灶馬數量與植物種數呈正相關，斑灶馬數量與在一定水質范圍內與水質呈負相關，與土壤肥力呈負相關;群落數與水質和土壤肥力、蚊蠅數量與水質都不能表現較好的相關性;研究認為，可以選擇斑灶馬、蝙蝠、蚊蠅、紅點囊蟾（或有尾類） 、魚類等作為指示動物對洞穴環境進行監測。 -
In addition, more regular cleansing and replenishment of filter materials should be conducted if the water quality is poor and or fish stock density is high
此外，如缸內的水質變差及或所飼養的活魚數目較多，亦應更頻密地清潔和補充過濾物料。 -
In addition, more regular cleansing and replenishment of filter materials should be conducted if the water quality is poor andor fish stock density is high
此外，如缸內的水質變差及或所飼養的活魚數目較多，亦應更頻密地清潔和補充過濾物料。 -
With stable and reliable operation, compact structure, and strong air breathing ability, it enables to enhance the stocking density for fish and prawn, flow water by stir to increase the dissolved oxygen concentration in water, and make even water temperature to improve water quality, which is an idle equipment for high - yielding aquaculture
具有工作平穩，運行可靠，結構緊湊，充氣能力強，提高魚蝦放養密度，攪拌水體流動，增加水中溶氧含量，能使水溫均勻達到改善水質的目的，是實現高產養殖的理想設備。 -
By stirring water with the impeller, splash water to the air evenly and widely, strengthen the pond water ' s flowing circulation, make pond water dissolve into oxygen and death of fish, shrimp and eel, raise the breeding density, quicken the growth so to achieve high and stable yields
通過葉輪攪水，把水均勻而彌散地潑向空間，加強池水流動循環，使池水溶入氧而稀釋和排出有害物質，增加水中的溶氧量，改善水質，防止魚蝦鰻浮頭死亡，提高養殖密度，加速生長，從而達到高產穩產。 -
Abstraction of seawater for keeping live seafood should be avoided during and after inclement weather. ( 4 ) live fish and shellfish should be kept separately in different tanks and at a stock density not causing overcrowding
應把活魚及介貝類水產動物分開放置在不同的魚缸內飼養，而在每個魚缸所飼養的活魚或介貝類水產數目不宜太多，以免過分擁擠。 -
The energy density in either the male or female at the spawing was not different significantly from that at the spent, which suggested that the energy expended in the spawing might be mainly supplied by ingested food in this fish
們的直線回歸方程的協方差分析，可將雄性5個樣本的回歸方程合併為一個公共方程作為。預測雄性魚體能量密度（ en ）的模型：巳4 33 。 -
The fish chemical composition and energy density in the 10 samples were measured
測定了這10個樣本的化學組成和能量密度。 -
In the second trial, this modified discontinuous percoll gradient centrifugation method was introduced to isolate spermatids from the semen of fifteen male infertile patients. then the effect was identified by wright - giemsa stain, flow cytometry analysis, immunocytochemistry and fluorescence in situ hybridization ( fish ). similary, the 22 % percoll fraction contained mostly haploid cells [ ( 91. 85 ? 5. 18 ) % ] ( p < 0. 005 ) and the mean density in this fraction was ( 1. 010 ? 0. 786 ) x 105 / ml
C法，對15例各種類型不育患者的精液細胞進行分離，並利用瑞姬染色法、流式細胞術、免疫細胞化學和熒光原位雜交oisffi等方法，從細胞形態特徵、 dna倍體、細胞表面標i己與分化抗原，以及原位雜交信號的數目和位置結合細胞核特有的形態等方面加以鑒定。 -
Red bettas are produced when the normal red pigment has been increased in density and extended in distribution to cover the entire body and fins of the fish
當斗魚的紅色素較多，且散佈於全身及魚鰭，就稱之為紅斗魚。 （紅斗魚的紅色素較多，且散佈於全身及魚鰭。 ）
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