fish concentration 中文意思是什麼

fish concentration 解釋
魚類群聚
  • fish : n 菲什〈姓氏〉。n （pl fishes 〈集合詞〉 fish）1 魚；〈集合詞〉魚類；魚肉。 ★說魚的若干種類時用 f...
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  1. The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury

    研究內容主要有：廣州市河涌沉積物及底棲生物體內重金屬含量及評價；汞和硒對劍尾魚的急性毒性和聯合毒性及安全濃度的評價；汞對劍尾魚鰓和肝臟中抗氧化系統的毒性，包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用；汞對劍尾魚組織生理毒性即：汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍尾魚組織超微結構的損傷等。以高氯酸?硝酸消化法和火焰原子吸收分光光度法測定了廣州市河涌沉積物和底棲生物中重金屬含量。
  2. The results showed in the soft water group of 1. 50 mg / l cd2 + concentration, the fish were get serins contaminated and 33 % fish were died, the others were also get contaminated but no fish died

    結果鎘濃度為1 . 5mg l軟水組7天內死亡率為33 ，而其它濃度的軟水組和硬水組的草魚均未出現死亡現象。
  3. The variety of the activity of na + / k + - atpase, ca2 + - atpase and sod by increase calcium concentration in the water, and the effects of cd2 +, estradiol - 17 and ca2 + on the lymphocyte proliferation from blood and head kidney of ctenopharyngodon idellus were also investigated the significance of this paper is that to research the toxicity of cadmium to the fish and to search the mechanism of the cadmium toxicity to the fish. and the protection of calcium on cd2 + toxicity

    本論文研究了鎘對草魚的毒性作用，比較了在不同鈣濃度條件下，其鰓、肝臟、腦等組織中sod 、 na ~ + k ~ + ? atp酶、 ca ~ （ 2 + ） ? atp酶的活性變化規律以及鎘和17 ?雌二醇對草魚血液及頭腎淋巴細胞增殖的影響，評價鎘對魚類的毒害作用，探索鎘的毒害機理。
  4. " the high concentration of the red tide led to a discolouration of water but mariculturists confirmed that fishes in the fish culture zone are normal, " he said

    他補充說：由於有高濃度的紅潮細胞，因而引致海水變色，但養魚戶證實，區內養魚均十分正常。
  5. 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。
  6. The field surveys and lab experiments tvere designed to study the distribution and source of pah " poliution in x " ater, sediment ; the pah " concentration and distribution in marine fish organ ( of the fish lateolabimjapo ) 1iclls and pagivsonills inajor ) ; the pah " bcf factors of liver and bile in marine fish ( laleolabral jtwo ) 1itits and pag7vso ) ) ills ) ) 1ajbr ) ; the reiationship between pah " exposure and biochemicai response ( cat sod, lpo ) and the metabolic rate of naphthalene and pyrene in fish bile

    4優化了魚膽汁中1 ?羥基萘和1 ?羥基芘的熒光分析方法，測定了1 ?羥基萘和1 ?羥基芘在鱸魚、真鯛膽汁中的含量，探討了萘和芘在魚膽汁中的代謝比率、清除作用。結果顯示： （ 1 ）膽汁中萘的代謝比率低，易蓄積；而芘的代謝比率高，易清除。
  7. The concentration of 0. 0375 % is better than th at of 0. 075 %. the conclusion can be drawn according to the observation of 517 clear metaphases of mitosis that the number of diploid chromosome is 2n = 42 and the karyotype formula is 42t, nf = 42. a special huge chromosome was observed in a part of larval fish

    通過對517個清晰的中期分裂相的觀察和統計，最終確定：半滑舌鰨的半滑舌姻的早期胚胎光聰觀察及核型研究染色體眾數zn ? 42 ，臂數nf二42 ，核型為42t ，全部為端部著絲粒染色體。
  8. Avoid eating the head, skin, viscera and roe of coral reef fish which usually have higher concentration of toxin

    進食珊瑚魚時，避免吃頭部魚皮內臟，和魚卵，因為毒素較多積聚于這些部分
  9. Larval fish of cynoglossus semilaevis g unther were treated with colchicines to get the karyotype, 12 ~ 50 - day larval fish were selected to be put into the solution of colchicine of different concentration for 5 - 6 hours. the fin, and the other part of the fish were cut off to be treated with low concentration infiltration, solidify, eduction and other procedures. at last, the suspending cells can be gained and treated with air - drying method

    選取孵化時間為12 50天的幼魚，在不同濃度的秋水仙素溶液中處理5 6小時，分別剪取冠狀幼鰭、鰓絲和身體周圍的鰭條，通過低滲、固定、解離，得到細胞懸液，熱片法滴片， giemsa染色。
  10. 3 the resu1ts shot ', ed that fish biie could concentra1e parent pah, and the pah " concentration correla1ed to the pah " pollution levels in seawatef, thus, it could be used as a biomarker to indicate pah " pol1ution leve1s in seawater

    在實驗條件下，魚肝臟的生化指標變化與mh污染強度之間具有可逆性：可聯合作為水體日污染程度的早期預警指標和生物標志物。
  11. Sperm concentration was not related to a mother ' s consumption of other meat, including veal and pork, as well as fish and chicken, the researchers said

    精子濃度與母親其它肉類的消費包括小牛肉，豬肉，魚肉和雞肉都沒有關系，研究者說。
  12. 10. the results of the study showed that predatory fish, such as shark, tuna and swordfish, had the highest concentration of mercury while seafood other than fish, particularly shellfish, was identified as the main dietary source of cadmium and inorganic arsenic

    10 .是次研究結果顯示，捕獵魚類，如鯊魚金槍魚和劍魚的含汞量最高。此外， "魚類以外的海產"尤其是貝介類被視為是鎘及無機砷的主要來源。
  13. One group ( the soft water group ) of fish were exposed to the cd2 + concentration of 0. 00 mg / l 0. 06 mg / l 0. 30 mg / l1. 50 mg / l, the other group ( the hard water group ) were exposed to the same cd2 + concentration but increase the hardness of water to 16 degree ( germany degree ) by add calcium chloride into the solution

    實驗中將草魚置於鎘濃度分別為0 . 06mg l 、 0 . 3mg l 、 1 . 5mg l的水溶液中，每個梯度又分成軟水組和硬水組，同時設軟水對照和硬水對照，共8個組。軟水組為自來水，硬水組為通過向水中加入cacl _ 2 ，使其硬度為16度（德國度） 。
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