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Impact of brine acidification on hatchability, survival and reproduction of Artemia parthenogenetica and Artemia franciscana in salt ponds, Bohai Bay, China

查看全文 作　　者：[1]隋丽英;[1]邓元告;[1]王婧;SORGELOOS [2]Patrick;VAN STAPPEN [2]Gilbert 高影响力作者 机构地区：[1]Tianjin Key Laboratory of Marine Resources & Chemistry,Tianjin University of Science & Technology;[2]Laboratory of Aquaculture & Artemia Reference Center,Ghent University高影响力机构 出　　处：《Chinese Journal of Oceanology and Limnology》索引2014年第32卷第1期,共7页高影响力期刊 基　　金：Supported by the International Cooperation Research Program of the Ministry of Science&Technology of China(No.2010DFA32300);the Pilot Project for International Cooperation'Aquaculture in Hebei and Shandong Provinces'funded by the Province of East-Flanders,Belgium;the Nature Science Foundation of Tianjin(No.13JCZDJC28700) 摘　　要：We studied the effect of pH(pH 5, 6, 7 and 8) on the hatching percentage, survival and reproduction of Artemia strains in Bohai Bay salt ponds. Strains included parthenogenetic Artemia from Bohai Bay(BHB), Artemia franciscana from San Francisco Bay, and A. franciscana artifi cially produced in salt ponds in Vietnam. The latter was included as a potential inoculum for biological management of salt ponds. The hatching percentage of cysts after 24 h and the survival rate of the tested Artemia strains were signifi cantly reduced when exposed to a culture medium at pH 5 for 18 d( P <0.05). The tolerance of Artemia to 48 h acid exposure varied with developmental stage, increasing in the following order: juvenile, nauplii, pre-adult, with maximum tolerance in adults. All strains of Artemia tested could not reproduce at pH 5. At pH levels from pH 6–8, a higher pH generally resulted in a shorter brood interval and enhanced ovoviviparity. Hence, we suggest that brine acidifi cation has a negative impact on Artemia populations in the Bohai Bay saltworks. Inoculation of Artemia with either local parthenogenetic Artemia or exotic A. franciscana should be feasible at pH 7–8. 关 键 词：孤雌生殖卤虫 渤海湾 孵化率 存活率 盐水 酸化 盐池 中国
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