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Burial fluxes and sources of organic carbon in sediments of the central Yellow Sea mud area over the past 200 years

Acta Oceanologica Sinica 2015年第10期34卷 13-22页

作者： YANG Shu YANG Qian LIU Sai CAI Deling QU Keming SUN Yao key laboratory for sustainable Utilization of marine fisheries of Ministry of Agriculture Yellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences

Long-term changes of composition, sources and burial fluxes of TOC （total organic carbon） in sediments of the central Yellow Sea mud area and their possible affecting factors are discussed in this paper. Firstly, similarity analysis is employed to confirm that the carbon burial features resulted from two collected cores are typical in the central Yellow Sea mud area where YSWC （Yellow Sea Warm Current） is prevalent. On this basis, the burial flux of TOC here was considered to be 235.5-488.4 pmol/（cm^2.a） since the first industrial revolution, accounting for about 70%-90% among burial fluxes of TC （total carbon） in the sediments. Compared TOC/TC ratio in the two cores with that in other marine sediments worldwide, we suggest that the growth of calcareous/non-calcareous organisms and dissolution of IC （inorganic carbon） are important factors controlling the TOC/TC ratio in sediment. Results of two-end mixed model based on fi13C data indicate that marine-derived organic carbon （OCa） is the main part among total burial organic carbon which accounts for a ratio over 85%. Due to the high TOC/TC ratio in the two cores, TC in the sediments also mainly exists as OCa, and the proportion of OCa is about 60%-80%. Away from the shore and relatively high primary production in upper waters are the main reasons that OCa is predominant among all burial OC in sediments of the central Yellow Sea mud area. Burial of OC in this mud area is probably mainly influenced by the human activities. Although the economic development during the late 19th century caused by the first industrial revolution in China did not obviously increase the TOC burial fluxes in the sediments, the rise of industry and agriculture after the founding of new China has clearly increased the TOC burial flux since 1950s. Otherwise, we also realize that among TC burial fluxes, TIC account for about 10%-30% in sediments of the central Yellow Sea mud area, so its burial could not be simply ignored here. Distinct from TOC

关键词： the central Yellow Sea mud area organic carbon burial flux source long-term changes human activities

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Genetic parameters for cold tolerance and body weight of Chinese fleshy prawn,Fenneropenaeus chinensis

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Acta Oceanologica Sinica 2016年第6期35卷 12-18页

作者： LI Wenjia LUAN Sheng LUO Kun SUI Juan LU Xia WANG Qingyin KONG Jie key laboratory for sustainable Utilization of marine fisheries Resources of Ministry of Agriculture Yellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences laboratory for marine fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology

The inability of Fenneropenaeus chinensis to tolerate low temperatures is of major economic concern in temperate climates,as it reduces their growing season and leads to over-winter *** this study,the heritability of body weight under low grow-out temperature and cold tolerance in *** were first investigated and estimated using 88 ful-sib families,which might provide crucial information in Chinese fleshy prawn breeding *** heritability for body weight under suitable and low temperature of *** were both moderate（0.158 0±0.307 5 and 0.132 0±0.026 9 respectively）;the large coefficient of variation（approximately 21%） and moderate estimate of heritability for body weight indicated substantial potential for selective *** heritability estimate for cold tolerance was low（0.019 2±0.023 5）,and showed no significant differences from zero（P〉0.05）.A weak genetic correlation between cold tolerance and body weight was also estimated in the present study,also showing no significant differences from zero（P〉0.05）.Thus,more research needs to be conducted on the more accurate heritability estimate of cold tolerance and genetic correlations between traits in *** to further improve the achievement of breeding goals.

关键词： Fenneropenaeus chinensis heritability body weight cold tolerance genetic correlation

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Photosynthetic and metabolic responses of eelgrass Zostera marina L. to short-term high-temperature exposure

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Journal of Oceanology and Limnology 2019年第1期37卷 199-209页

作者： GAO Yaping JIANG Zengjie DU Meirong FANG Jinghui JIANG Weiwei FANG Jianguang Institute of Oceanology Chinese Academy of Sciences University of Chinese Academy of Sciences key laboratory of sustainable development of marine fisheries Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Function laboratory for marine fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology

In recent years, extreme heat events have occurred worldwide and the ocean temperature has been rising, causing stress on the photosynthesis and growth of seagrass. Metabolomics enables detection of metabolic changes under environmental stress. In this study, the photosynthetic physiology and metabolic changes of the eelgrass Zostera marina L. in response to 48 h exposure to 32°C were investigated. The results showed that high temperature induced signi?cant inhibition of photosynthetic effciency(Δ F/F′ m)(23.9%lower than the control), enhanced respiration(58.3% higher), and decreased carbohydrate decomposition products and tricarboxylic acid(TCA) cycle intermediate products, indicating that the energy supply of the eelgrass may be insuffcient at high temperature. In addition, high temperature decreased stearic acid and linoleic acid in eelgrass, suggesting the composition of the membrane system of eelgrass may change at high temperature and implying that high temperature may cause the membrane system to be unstable.

关键词： high temperature eelgrass photosynthetic response metabolome

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Characterization of the Complete Mitochondrial Genome of the Hybrid Epinephelus moara♀ × Epinephelus lanceolatus♂,and Phylogenetic Analysis in Subfamily Epinephelinae

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Journal of Ocean University of China 2017年第3期16卷 555-563页

作者： GAO Fengtao WEI Min ZHU Ying GUO Hua CHEN Songlin YANG Guanpin College of marine Life Science Ocean University of China Yellow Sea fisheries Research Institute Chinese Academy of Fishery Sciences (CAFS)Key Laboratory for Sustainable Development of Marine FisheriesMinistry of Agriculture Wuxi fisheries College Nanjing Agricultural University

This study presents the complete mitochondrial genome of the hybrid Epinephelus moara♀× Epinephelus lanceolatus♂. The genome is 16886 bp in length, and contains 13 protein-coding genes, 2 r RNA genes, 22 t RNA genes, a light-strand replication origin and a control region. Additionally, phylogenetic analysis based on the nucleotide sequences of 13 conserved protein-coding genes using the maximum likelihood method indicated that the mitochondrial genome is maternally inherited. This study presents genomic data for studying phylogenetic relationships and breeding of hybrid Epinephelinae.

关键词： Epinephelus moara♀× Epinephelus lanceolatus♂ mitochondrial genome phylogenetic analysis

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Burial fluxes and source apportionment of carbon in culture areas of Sanggou Bay over the past 200 years

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Acta Oceanologica Sinica 2015年第10期34卷 23-30页

作者： LIU Sai HUANG Jiansheng YANG Qian YANG Shu YANG Guipeng SUN Yao key laboratory of sustainable development of marine fisheries of Ministry of Agriculture Yellow Sea Fisheries Research InstituteChinese Fisheries Science Academy key laboratory of marine Chemistry Theory and Technology of Ministry of Education College of Chemistry and Chemical EngineeringOcean University of China College of Ocean and Earth Science Xiamen University

In this study, we assessed the burial fluxes and source appointment of different forms of carbon in core sediments collected from culture areas in the Sanggou Bay, and preliminarily analyzed the reasons for the greater proportion of inorganic carbon burial fluxes （BFTIc）. The average content of total carbon （TC） in the Sanggou Bay was 2.14%. Total organic carbon （TOC） accounted for a small proportion in TC, more than 65% of which derived from terrigenous organic carbon （Ct）, and while the proportion of marine-derived organic carbon （Ca） increased significantly since the beginning of large-scale aquaculture. Total inorganic carbon （TIC） accounted for 60%-75% of TC, an average of which was 60%, with a maximum up to 90% during flourishing periods （1880-1948） of small natural shellfish derived from seashells inorganic carbon （SheU-IC）. The TC burial fluxes ranged from 31 g/（m2.a） to 895 g/（m2.a） with an average of 227 g/（m2.a）, which was dominated by TIC （about 70%）. Shell-IC was the main source of TIC and even TC. As the main food of natural shellfish, biogenic silica （BSi） negatively correlated with BFTIc through affecting shellfish breeding. BFTIc of Sta. S1, influenced greatly by the Yellow Sea Coastal Current, had a certain response to Pacific Decadal Oscillation （PDO） in some specific periods.

关键词： carbon sources carbon burial fluxes shells inorganic carbon (Shell-IC) marine-derived organic carbon (Ca) Sanggou Bay

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Stocking density effects on growth and stress response of juvenile turbot(Scophthalmus maximus) reared in land-based recirculating aquaculture system

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Acta Oceanologica Sinica 2017年第10期36卷 31-38页

作者： LIU Baoliang JIA Rui ZHAO Kuifeng WANG Guowen LEI Jilin HUANG Bin Yellow Sea fisheries Research Institute Chinese Academy of Fishery Sciences key laboratory of sustainable development of marine fisheries Ministry of Agriculture Qingdao key laboratory for marine Fish Breeding and Biotechnology Wuxi fisheries College Nanjing Agricultural University Shandong Oriental Ocean Sci-Tech Co. Ltd

Stocking density is widely recognized as a critical factor in aquaculture and a potential source of long-term *** influence of stocking density on growth and stress response of juvenile turbot（Scophthalmus maximus, ~3–75g, initial to final weight） was examined in fish held under low（LD, ~0.21–5.31 kg/m^2, initial to final density）,medium（MD, ~0.42–10.81 kg/m^2） and high stocking density（HD, ~0.63–14.27 kg/m^2） for 120 days in a recirculating aquaculture system（RAS）. In this trial, the growth curve for weight of juvenile turbot in RAS, all fitted by the Schnute model. No significant difference was found in growth performance among the three densities until at the final sampling（Day 120）. The final weight and body weight increase（BWI） in the HD group were significantly lower than in other groups（P〈0.05, weight：（75.83±2.49） g,（75.39±2.08） g,（65.72±2.86） g and BWI：（2 436.12±28.10）%,（2 421.29±4.64）%,（2 097.88±20.99）% in LD, MD and HD groups, respectively）. Similarly, the specific growth rate（SGR）, feed conversion ratio（FCR） and coefficient of variation for weight（CV_w） were adversely affected by high stocking density（P〈0.05）. However, there was no difference in survival and Fulton＇s condition factor（K） of turbot among the different groups. Physiological analyses demonstrated a clear increase in the plasma cortisol level and an obvious decrease in growth hormone（GH） concentration in the HD group on Day120（P〈0.05）. There was no significant effect of stocking density on plasma glucose, Cl– and protein levels. All these findings would provide a reference for selecting the optimal stocking density of juvenile turbot in RAS.

关键词： growth performance recirculating aquaculture system Scophthalmus maximus stress physiology stocking density

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QTL Detection for Albinism-Related Loci in Chinese Tongue Sole(Cynoglossus semilaevis)

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Journal of Ocean University of China 2018年第6期17卷 1404-1410页

作者： LIU Yang XU Wenteng ZHANG Bo SHAO Changwei WANG Xiaoxia SUN Hejun WANG Na CHEN Songlin Yellow Sea fisheries Research Institute Chinese Academy of Fishery Sciences (CAFS) Key Laboratory for Sustainable Development of Marine Fisheries Ministry of Agriculture laboratory for marine fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology Tianjin Bohai Sea fisheries Research Institute Bohai Sea Fisheries Research Center of Chinese Academy of Fishery Sciences

The Chinese tongue sole(Cynoglossus semilaevis) is widely cultured in the coastal region of East Asia and has excellent economic value. However, the high albino rate of the breeding population has caused a significant loss to the aquaculture industry. To study the molecular mechanism of albinism, the present study used an albino Chinese tongue sole family to construct three simple sequence repeat(SSR) linkage groups, and draft a preliminary linkage map related to albinism. After albinism-related loci mapping, 18 albinism-related loci were detected under two models(containing 2407 genes) compared to the Chinese tongue sole genome. One of these loci, the tyrosinase related protein(tyrp2), which has been reported previously as an important gene regulating both eumelanin and phaeomelanin levels, was indicated to be the possible cause of albinism. Thirty-five Gene Ontology(GO) terms and 14 Kyoto Encyclopedia of Genes and Genome pathways were annotated via bioinformatic analyses. One GO term with protein tyrosine kinase activity, which contained 10 genes, was previously suggested to affect fish albinism. These results establish a foundation for further in-depth study of albinism in Chinese tongue sole.

关键词： albinism Cynoglossus semilaevis locus mapping simple sequence repeat

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Trophic interactions, ecosystem structure and function in the southern Yellow Sea

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Chinese Journal of Oceanology and Limnology 2013年第1期31卷 46-58页

作者：林群金显仕张波 Fishery College Ocean University of China key laboratory for sustainable development of marine fisheries Ministry of AgricultureShandong Provincial Key Laboratory for Fishery Resources and Eco-environmentYellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences

The southem Yellow Sea is an important fishing ground, providing abundant fishery resources. However, overfishing and climate change have caused a decline in the resource and damaged the ecosystem. We developed an ecosystem model to analyze the trophic interactions and ecosystem structure and function to guide sustainable development of the ecosystem. Atrophic mass-balance model of the southern Yellow Sea during 2000-2001 was constructed using Ecopath with Ecosim software. We defined 22 important functional groups and studied their diet composition. The trophic levels of fish, shrimp, crabs, and cephalopods were between 2.78 and 4.39, and the mean trophic level of the fisheries was 3.24. The trophic flows within the food web occurred primarily in the lower trophic levels. The mean trophic transfer efficiency was 8.1%, of which 7.1% was from primary producers and 9.3% was from detritus within the ecosystem. The transfer efficiency between trophic levels II to III to IV to V to 〉V was 5.0%, 5.7%, 18.5%, and 19.7%-20.4%, respectively. Of the total flow, phytoplankton contributed 61% and detritus contributed 39%. Fishing is defined as a top predator within the ecosystem, and has a negative impact on most commercial species. Moreover, the ecosystem had a high gross efficiency of the fishery and a high value of primary production required to sustain the fishery. Together, our data suggest there is high fishing pressure in the southern Yellow Sea. Based on analysis of Odum＇s ecological parameters, this ecosystem was at an immature stage. Our results provide some insights into the structure and development of this ecosystem.

关键词： Ecopath trophic interactions ecosystem structure fisheries the southern Yellow Sea

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Antioxidant Response of Ridgetail White Prawn Exopalaemon carinicauda to Harmful Dinoflagellate Prorocentrum minimum Exposure and Its Histological Change

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Journal of Ocean University of China 2017年第2期16卷 285-293页

作者： MU Cuimin REN Xianyun GE Qianqian WANG Jiajia LI Jian key laboratory for sustainable Utilization of marine fisheries Resources of Ministry of Agriculture Yellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences Function laboratory for marine fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology

The dinoflagellate Prorocentrum minimum,one of the most widespread red tide causing species,affects marine aquaculture and ecosystems *** this study,ridgetail white prawn Exopalaemon carinicauda were exposed to *** cells(5 × 104 cells mL-1) to investigate its harmful effects on the *** activities and histological changes were used as indicators of health status of the *** 72 hours,the mortality of *** was not affected,but its antioxidant response and histology were statistically different from those of *** superoxide dismutase(SOD) and glutathione peroxidase(GPX) activities and depressed catalase(CAT) activity were observed in gill;while increased SOD,glutathione S-transferase(GST),CAT activities and modulated GPX activity were observed in ***,antioxidant activities in gill and hepatopancreas seem to respond differentially to harmful alga *** malondialdehyde(MDA) content in early a few hours indicates the damage of the antioxidant defense *** MDA content recovered to a low level thereafter,a series of histological abnormalities including accumulation or infiltration of hemocytes,tissue lesions and necrosis were discovered in gill and *** to *** induced sublethal effects on ***,including temporary oxidative damage and histological injury.

关键词： Prorocentrum minimum Exopalaemon carinicauda antioxidant response histological changes

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Research in migration route of hatchery released Chinese shrimp(Fenneropenaeus chinensis) in the Bohai Bay using method of SSR marker

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Acta Oceanologica Sinica 2020年第12期39卷 76-81页

作者： Weiji Wang Ding Lyu Mosang Wang Kefeng Liu Jie Kong Xiujuan Shan Xianshi Jin key laboratory of sustainable development of marine fisheries of Ministry of Agriculture Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China laboratory for marine fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Bohai fisheries Research Institute of Tianjin Tianjin 300457China

This study provides new insights for the hatchery released Chinese shrimp(Fenneropenaeus chinensis),including proportion,dynamic migration route,after they were released into nature for stock enhancement using a new strategy quite different than *** shrimp were sampled at 22 survey stations during two investigation voyages acrossing 74 survey stations in the Bohai Sea from July 16 to August 9 in *** 289 sampled individuals during the second voyage,totally 155 shrimps were identified as hatchery shrimp released into the Laizhou Bay at mid-May in 2015 based on finger-print of eight SSR(simple sequence repeats)markers,and the proportion of hatchery released shrimp in recapture samples were from 41.30%–85.71%in each station with an average value 53.63%,which verified a previous view point that up to 90%of autumn season Chinese shrimp landing in the Bohai Sea were composed of hatchery ***,the dynamic migration route of hatchery released shrimp revealed that part of released shrimp migrated heading northwest along the west coast of the Bohai Sea up to the Bohai Bay but just remained at the Laizhou Bay until over-wintering migration at midOctober when they initiate over-wintering *** unnatural spring season shrimp fishing model cut the throat of spawner shrimp chance to swim back to their respective spawning plants at each spring,it still no chance to clarify whether the hatchery released shrimp could replenish to the reproduce population and complete a whole life cycle as same as their natural relatives.

关键词： Fenneropenaeus chinensis migration route hatchery release stock enhancement SSR marker

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