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Early life migration and population discrimination of the small yellow croaker Larimichthys polyactis from the Yellow Sea: inferences from otolith Sr/Ca ratios

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Journal of Oceanology and Limnology 2022年第2期40卷 818-829页

作者： Dade SONG Ying XIONG Tao JIANG Jian YANG Xiaming ZHONG Jianhua TANG College of Marine Sciences Shanghai Ocean UniversityShanghai 201306China Jiangsu Marine fisheries Research Institute Nantong 226007China Key laboratory of Fishery Ecological Environment Assessment and Resource Conservation in Middle and Lower Reaches of Yangtze River Freshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi 214081China

The small yellow croaker Larimichthys polyactis is a benthic marine fish species of high ecological and commercial importance and is widely distributed in the northwestern Pacifi c Ocean,especially in the Chinese coastal waters of the Bohai,Yellow,and East China *** a highly migratory species,the whole life migration of *** has been intensively ***,knowledge about its early life migration is scarce,and population divisions are inconsistent,limiting the ability of fishery scientists and administrators to evaluate the design and potential benefits of thorough conservation and resource-management *** the present study,otolith Sr/Ca was analyzed to investigate the early migratory patterns and discriminate the populations of *** in the Yellow Sea,including two spawning groups and one overwintering *** variation in Sr/Ca ratios of ontogenetic growth zones,including the nucleus(N),larval(L),metamorphosis(M),juvenile(J),and edge(E)zones,was measured by electron probe *** variation in Sr/Ca ratios in early developmental growth zones was generally characterized by an evident downward trend from the N to J zone,which suggests that the early migratory pattern of *** might be from inshore to nearshore *** discriminant analysis,based on the otolith Sr/Ca ratios of the N,L,M,and J zones,allowed the successful discrimination of the two populations,namely,the northern and southern Yellow Sea groups,whose diff erences were mainly reflected in the L and J *** with previous studies,the traditional geographic boundaries(34°N)separating these two populations might be moving *** application of otolith Sr/Ca ratios based on ontogenetic stage could improve our understanding of the migration and population discrimination of *** from the Yellow Sea.

关键词： otolith microchemistry Larimichthys polyactis early life migration population discrimination the Yellow Sea

Evidence of return of chum salmon released from Tangwang River by strontium marking method

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Acta Oceanologica Sinica 2021年第8期40卷 182-186页

作者： Jilong Wang Wei Liu Peilun Li Fujiang Tang Wanqiao Lu Jian Yang Tao Jiang Heilongjiang River fisheries Research Institute Chinese Academy of Fishery SciencesHarbin 150070China Scientific Observing and Experimental Station of Fishery resources and Environment in Heilongjiang River Basin Ministry of Agriculture and Rural AffairsHarbin 150070China Key laboratory of Fishery Eco-environment Assessment and Resource Conservation in Middle and Lower Reaches of the Yangtze River Freshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi 214081China

In order to assess the effect of enhancement release of chum salmon(Oncorhynchus keta),otolith strontium(Sr)marking method was used to tag chum salmon released in Tangwang River in *** homing chum salmon were detected and the samples were collected in Tangwang River,Ussuri River and Suifen River in the autumn *** samples were analyzed by examining Sr and calcium(Ca)fingerprints in the otolith using electron probe *** results suggested that two samples collected in Tangwang River had the marking ring near the core of otolith where the Sr concentration and Sr/Ca ratio were significantly higher than comparative *** that the two fish belonged to the released population in Tangwang River in *** article indicated the success of the enhancement release of chum salmon from the Tangwang River for the first time and also confirmed the validity of Sr marking in enhancement release of fishes.

关键词： chum salmon(Oncorhynchus keta) otolith strontium(Sr)marking enhancement release

Compensatory growth in hybrid tilapia (Oreochromis mossambicus×O. niloticus) reared in seawater, following restricted feeding

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Chinese Journal of Oceanology and Limnology 2004年第4期22卷 414-420页

作者：王岩崔奕波杨云霞蔡发盛 Key laboratory of Genetic resources and Ecology in Aquaculture Shanghai Fisheries University Shanghai 200090 China State Key laboratory of freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China laboratory of Marine Biology Shantou University Shantou 515063 China

Hybrid tilapia weighing 7.71 g were reared in seawater at 24.0-29.0℃ for 8 weeks. The controls were fed to satiation twice a day throughout the experiment, whereas treatment groups were fed at 0.5%, 1.5% or 3.0% body weight per day for 4 weeks, and then to satiation for the remainder of the experiment. During the first 4-week period, there was a curvilinear relationship between growth rate and ration size. Fish fed 0.5% and 1.5% rations displayed compensatory growth response of 2 weeks duration during realimentation. The weight-adjusted growth rate of fish fed at 3% ration was not significantly different from that of the controls by the end of the experiment, when none of the treatment groups had caught up in body weight with the controls. Hyperphagia was observed for the first 2 weeks of realimenatation in fish previously fed at 3% ration, but persisted for the whole realimentation period in groups previously fed at 0.5% and 1.5% rations. None of the feed restricted groups showed improved digestibility, feed efficiency, or protein and energy retention efficiency.

关键词： hybrid tilapia compensatory growth feed restriction ration level

Immunization with recombinant baculovirus expressing the VP6 protein of grass carp reovirus induces immunity in grass carp

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Virologica Sinica 2014年第4期29卷 261-263页

作者： Qin Li Liyue Liu Li Lin Zeming Li Guangxin Liu Shusheng Wu Min Wang Lijuan Li Junfa Yuan Gailing Yuan Xueqin Liu Department of Aquatic Animal Medicine College of FisheriesHuazhong Agricultural University Key laboratory of freshwater Animal Breeding Ministry of Agriculture freshwater Aquaculture Collaborative Innovation Center of Hubei Province

Grass carp reovirus（GCRV）,a member of the genus Aquareovirus in the family Reoviridae（Attoui H,et al,2002）,is one of the most virulent aquareoviruses iden-tified so far,leading to high fatality rates（up to 85%）of fingerlings and yearlings of grass carp（Fang Q,et al,2007）.No commercial vaccines against GCRV infection have been developed as yet.

关键词：草鱼呼肠孤病毒杆状病毒表达诱导免疫蛋白重组接种 iDEN 疫苗研制

EFFECT OF PH, AMMONIA, NITRITE, PHENOL AND COPPER ON LARVAE OF THE CHINESE STURGEON, ACIPENSER SINENSIS

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EFFECT OF PH, AMMONIA, NITRITE, PHENOL AND COPPER ON LARVAE ...

Cloning and expression analysis of the nuclear factor erythroid 2-related factor 2(Nrf2)gene of grass carp(Ctenopharyngodon idellus)and the dietary effect of Eucommia ulmoides on gene expression

第十九届国际动物学大会

作者： H.Du Q.Wie J.Liu G.Tang D.Yang Y.Zhu Key laboratory of freshwater Fish germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key laboratory of freshwater Fish germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key laboratory of freshwater Fish germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key laboratory of freshwater Fish germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key laboratory of freshwater Fish germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China Key laboratory of freshwater Fish germplasm ＆ Biotechnology of Ministry of Agriculture Yangtze River Fisheries Research Institute Chinese Academy of Fishery Sciences Jingzhou 434000 China

＜正＞Acute toxicities of pH, Phenol, Ammonia, Nitrite and Cu were employed to study the larvae of Chinese sturgeon Acipenser sinensis with static bioas-says. The larvae were 8-day old just before the yolk would be co...

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Aquaculture and fisheries 2018年第5期3卷 196-203页

作者： Junpeng Wang Jun Xie Zhihan Tu Jing Wei Wenqian Pan Jing Hu Yi Zhang Xiangjun Leng Xiaoqin Li Centre for Research on Environmental Ecology and Fish Nutrition(CREEFN)of the Ministry of Agriculture Shanghai Ocean UniversityShanghai201306China Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding Shanghai201306China National Demonstration Center for Experimental fisheries Science Education Shanghai Ocean UniversityShanghai201306China Chinese Academy of Fishery Sciences Key Laboratory of Freshwater Fisheries and Germplasm Resources UtilizationWuxi214081China Department of Animal Science Xichang UniversityXichang615013China

Nuclear factor erythroid 2-related factor 2(Nrf2)is an important transcription factor in the regulation of redox homeostasis,which plays a vital role in metabolism,the cell cycle,and cell *** this study,the complete cDNA sequence of Nrf2 gene of grass carp was obtained by rapid amplification of cDNA ends-polymerase chain reaction(RACE-PCR),and the characteristics of Nrf2 proteins predicted from gene sequencing were analyzed by bioinformatics *** differential expression patterns were also detected by Real-time Fluorescence quantitative PCR(qRT-PCR).Then,Eucommia ulmoides(EU),a traditional Chinese medicine,was added into diet with an inclusion of 2%to feed grass carp for 3 months to investigate the effects on the expression of Nrf2 gene in *** results showed that the full-length of Nrf2 gene of grass carp is 2760 bp,encoding 593 amino acids,and the predicted Nrf2 protein is a hydrophilic and non-secretory *** carp Nrf2 gene showed higher expression in kidney,gill,liver,spleen,and blood tissues than in other *** the feeding trial,dietary EU significantly promoted the Nrf2 mRNA expression in kidney,gill,and liver tissues after three months *** results suggest that Nrf2 plays an important role in the anti-oxidative capacity of grass carp and its expression is enhanced by dietary EU.

关键词： Grass carp Nrf2 RACE Bioinformatics analysis Eucommia ulmoides

Dynamics of nitrogenous compounds and their control in biofloc technology (BFT) systemsA review

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Aquaculture and fisheries 2021年第5期6卷 441-447页

作者： Godwin Abakari Guozhi Luo Emmanuel O.Kombat Shanghai Engineering Research Center of Aquaculture Shanghai Ocean UniversityShanghai201306China Key laboratory of Fresh Water Aquatic Genetic resources Shanghai Ocean UniversityShanghai201306China National Demonstration Center for Experimental fisheries Science Education Shanghai Ocean UniversityShanghai201306China Key laboratory of freshwater Fishery germplasm resources Ministry of AgricultureShanghai Ocean UniversityShanghai201306China Department of Applied Biology Faculty of Applied SciencesUniversity for Development StudiesP.O.Box 24NavrongoGhana

Controlling toxic nitrogenous substances in biofloc technology(BFT)systems is critical for the success of this novel *** effectively control nitrogen accumulation in BFT systems,it is important to first understand the dynamics and the removal pathways of this element and its related compounds from aquaculture *** review focuses on synthesizing the information of nitrogen dynamics in BFT systems to provide researchers and practitioners with a guide to the fate of nitrogen and its control *** paper discusses the different types of nitrogenous compounds in BFT water,the transformation processes of ammonia to nitrites and nitrates,the relationship between the two forms of ammonia(NH3 and NH4+)in water and the equilibrium between *** paper also discusses nitrification as a major nitrogen removal pathway and the factors that influence the nitrification ***,the control of nitrogen in BFT systems by manipulating the carbon to nitrogen ratio(C/N)using external carbohydrates is described in this *** paper suggests that further studies should focus on investigating the various factors that influence nitrogen dynamics in BFT systems and the means of controlling contaminants other than nitrogen.

关键词： Biofloc technology Nitrification Nitrogen dynamics Heterotrophic Nitrifying bacteria

Hepatic Histopathological Characteristics and Antioxidant Response of Phytoplanktivorous Silver Carp Intraperitoneally Injected with Extracted Microcystins

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Biomedical and Environmental Sciences 2009年第4期22卷 297-302页

作者： LI LI AND PING XIE fisheries College of Huazhong Agricultural University, Wuhan 430070, Hubei, China Donghu Experimental Station of Lake Ecosystems, State Key laboratory of freshwater Ecology and Biotechnology of China, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei, China fisheries College of Huazhong Agricultural University Wuhan 430070 Hubei China Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology of China Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China

Objective To investigate the hispathological characteristics and antioxidant responses in liver of silver carp after intraperitoneal administration of microcystins （MCs） for further understanding hepatic intoxication and antioxidation mechanism in fish. Methods Phytoplanktivorous silver carp was injected intraperitoneally （i.p.） with extracted hepatotoxic microcystins （mainly MC-RR and -LR） at a dose of 1000 μg MC-LReq./kg body weight, and liver histopathological changes and antioxidant responses were studied at 1, 3, 12, 24, and 48 h, respectively, after injection. Results The damage to liver structure and the activities of hepatic antioxidant enzymes including catalase （CAT）, superoxide dismutase （SOD）, and glutathione peroxide （GPX） were increased in a time-dependent manner. Conclusion In terms of clinical and histological signs of intoxication and LD50 （i.p.） dose of MC-LR, silver carp appears rather resistant to MCs exposure than other fishes. Also the significantly increased SOD activity in the liver of silver carp suggests a higher degree of response to MCs exposure than CAT and GPX.

关键词： Antioxidant response Histopathological characteristics Liver Microcystins Fish

Artificially induced sex-reversal leads to transition from genetic to temperature-dependent sex determination in fish species

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Science China(Life Sciences) 2020年第1期63卷 157-159页

作者： Yang Xiong Shuai Wang Jian-Fang Gui Jie Mei College of fisheries Huazhong Agricultural UniversityWuhan 430070China State Key laboratory of freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesUniversity of the Chinese Academy of SciencesWuhan 430072China

Dear Editor,Sex determination is highly plastic across *** mechanisms of sex determination can be broadly divided into genetic sex determination(GSD)and environmental sex determination(ESD).GSD is the most popular sex-determining type in vertebrates,while ESD mainly occurred in some fish and reptiles(Li and Gui,2018a,2018b).Sex determination in teleost fish is usually controlled by the interaction between genetic and environmental factors(Mei and Gui,2015).Naturally,the coexistence of GSD and ESD(temperature・dependent sex determination)was found in several fish species including gibel carp(Carassius gibelio)and half-smooth tongue sole(Cynoglossus semilaevis)(Li and Gui,2018b),as well as in bearded dragon(Pogona vitticeps)(Holleley et al.,2015).However,the exact mechanism of transition between GSD and ESD is unclear.

关键词： determination fish transition