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《Fisheries Science》 2018-04
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Effects of Eyestalk Ablation on Ovary Development,Hepatosomatic Index and Biochemical Compositions of Ovary,Hepatopancreas and Muscle in Mantis Shrimp Oratosquilla oratoria

JIANG Linan;YAN Hongwei;LUO Mingzheng;CUI Xin;SHEN Xufang;WANG Lianshun;LIU Haiying;LIU Qi;College of Fisheries and Life Science,Dalian Ocean University;College of Marine Science and Environment,Dalian Ocean University;Key Laboratory of Marine Bio-resources Restoration and Habitat Reparation in Liaoning Province,Dalian Ocean University;  
The gonadosomatic index(GSI),hepatosomatic index(HPI)and biochemical compositions of ovary,hepatopancreas and muscle were investigated in female mantis shrimp Oratosquilla oratoria with body length of 10.20—15.20 cm by a hot tweezers method to research the effects of unilateral eyestalk ablation on ovary development.The results showed that the mantis shrimp in the treatment group had significantly higher GSI than the mantis shrimp in the control group did on 5,10,and 15 days after eyestalk ablation(P0.01).HPI was found to be significantly decreased in both treatment and control groups in the late stage of the whole experiment(P0.05).There were higher glycogen levels in ovary and hepatopancreas of the mantis shrimp in the treatment group than in the control group,with significant difference in 5 days(P0.05)and very significant difference in 15 days(P0.01).In muscle,however,the glycogen level was shown to be decreased in the treatment group in 5 days,earlier than that in the control group.In the ablated eyestalk mantis shrimp,the hepatopancreas protein content was elevated in 10 days and then significantly higher than that in the mantis shrimp in the control group(P0.05).There was higher protein content in ovary in the treatment group than that in the control group,with significant difference in 15 days(P0.05).The elevated first and then declined protein contents in ovary were observed in both groups,without significant difference(P0.05).The findings indicate that eyestalk ablation promotes nutrient accumulation and transformation,and is contributed to the development of ovary in mantis shrimp.
【Fund】: 教育部留学回国人员科研启动基金资助项目(2015-311);; 辽宁省教育厅一般项目(L2015083 L201614);; 辽宁省博士启动基金资助项目(201601288)
【CateGory Index】: S917.4
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