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Toxic Dinoflagellate Alexandrium tamarense Induces Oxidative Stress and Apoptosis in Hepatopancreas of Shrimp(Fenneropenaeus chinensis)

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Journal of Ocean University of China 2014年第6期13卷 1005-1011页

作者： LIANG Zhongxiu LI Jian LI Jitao TAN Zhijun REN Hai ZHAO Fazhen College of fisheries and Life Science Shanghai Ocean University key laboratory of sustainable development of marine fisheries of Ministry of Agriculture Yellow Sea fisheries Research Institute Chinese Academy of Fishery Sciences

This study investigated the inductive effect ofAlexandrium tamarense, a toxic dinoflagellate producing paralytic shell- fish poison, on oxidative stress and apoptosis in hepatopancreas of Chinese shrimp, Fenneropenaeus chinensis. The individuals of E chinensis were exposed to 200 and 1000 cells mL-1 of A. tamarense with their superoxide dismutase （SOD）, glutathione S-transferase （GST） activities, malonyldialdehyde （MDA） concentration, and caspase gene （FcCasp） expression in hepatopancreas determined at 12, 24, 48, 72 and 96 h. In addition, apoptosis in hepatopancreas of E chinensis at 96 h after exposure was determined through terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling （TUNEL） assay. The hepatopancreatic SOD and GST activities of F. chinensis exposed to 1000 cells mL-1 ofA. tamarense showed a bell-shaped response to exposure time. The hepatopancreatic MDA concentration ofF. chinensis exposed to 1000 cellsmL-1 ofA. tamarense increased gradually from 48 to 96h, and such a trend corresponded to the decrease of GST activity. The hepatopancreatic FcCasp transcript abundance of F. chinensis exposed to 1000 cells mL-1 ofA. tamarense was positively and linearly correlated to MDA concentration. Results of TUNEL assay showed that exposure to 1000 cells mL-1 of A. tamarense induced apoptosis in the hepatopancreas of E chinensis. Our study revealed that A. tamarense exposure influenced the antioxidative status ofF. chinensis and caused lipid peroxidation and apoptosis in the hepatopancreas of shrimp.

关键词： Alexandrium tamarense oxidative stress apoptosis Fenneropenaeus chinensis

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Heritability of body weight and resistance to ammonia in the Pacific white shrimp Litopenaeus vannamei juveniles

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Chinese Journal of Oceanology and Limnology 2016年第5期34卷 1025-1033页

作者：李文嘉卢霞栾生罗坤隋娟孔杰 key laboratory for sustainable Utilization of marine fisheries Resources Ministry of AgricultureYellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences

Ammonia,toxic to aquaculture organisms,represents a potential problem in aquaculture systems,and the situation is exacerbated in closed and intensive shrimp farming operations,expecially for Litopenaeus *** the potential for the genetic improvement of resistance to ammonia in *** requires knowledge of the genetic parameters of this *** heritability of resistance to ammonia was estimated using two descriptors in the present study:the survival time(ST) and the survival status at half lethal time(SS_(50)) for each individual under high ammonia *** heritability of ST and SS_(50) were low(0.154 4±0.044 6 and 0.147 5±0.040 0,respectively),but they were both significantly different from zero(P0.05),suggesting that ST and SS_(50) could be used as suitable indicators for resistance to *** were also positive phenotypic and genetic correlation between resistance to ammonia and body weight,which means that resistance to ammonia can be enhanced by the improvement of husbandry practices that increase the body *** results from the present study suggest that the selection for higher body weight does not have any negative consequences for resistance to *** addition to quantitative genetics,tools from molecular genetics can be applied to selective breeding programs to improve the efficiency of selection for traits with low heritability.

关键词： Litopenaeus vannamei heritability resistance to ammonia body weight genetic correlation

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Sensory bases and the mode of feeding behavior of tongue sole Cynoglossus semilaevis

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Chinese Journal of Oceanology and Limnology 2009年第4期27卷 708-713页

作者：王新安马爱军 key laboratory for sustainable Utilization of marine fisheries Resources Ministry of AgricultureYellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences

We conducted behavior experiments on the roles of vision, olfaction, and the lateral line in feeding in tongue sole Cynoglossus semilaevis Gtinter. Chemical cues from the prey alone could not elicit any searching or attacking behavior by the fish; only when moving foods were presented, the chemical nature of the foods affected feeding. In addition, we found that normal tongue sole did not accurately recognize moving artificial prey of different shapes. Neither chemosense nor vision plays an important role in prey detection. Reactions to moving objects and the response of the oropharyngeal cavity to different foods showed that the （eyeless） tongue sole use mainly the lateral line for prey detection and capture. Gustation in the oropharyngeal cavity is essential for the fish to swallow its prey.

关键词： Cynoglossus semilaevis feeding behavior sensory bases feeding mode

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Ecological footprint and vulnerability of marine capture fisheries in China

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Acta Oceanologica Sinica 2020年第4期39卷 100-109页

作者： Qi Ding Xiujuan Shan Xianshi Jin key laboratory of sustainable development of marine fisheries Ministry of Agriculture and Rural Affairs/Shandong Provincial Key Laboratory of Fishery Resources and Ecological EnvironmentYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Function laboratory for marine fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

China(herein referred as China’s mainland,and excluding Hong Kong,Macao and Taiwan)ranks as the world’s leading fishing nation,with approximately 11.1 million tons of domestic marine catch acquired in *** fisheries resources in China are mainly exploited by its 11 coastal provinces and municipalities,and the development of fishing industry varies among ***,few studies have examined the exploitation history of the 11 coastal provinces and *** this paper,we systematically quantified the exploitation history of marine fishery resources in China and then measured the vulnerability of the 11 coastal provinces and municipalities of China to a reduction in marine *** analysis suggested that Chinese marine fisheries experienced rapid growth from the mid-1980 s to the end of the 20 th century,and this rapid increase in marine catches were mainly promoted by increased fishing *** total primary production required level amounted to approximately 80%of the average primary productivity in 2017,and Zhejiang,Fujian,Shandong,Hainan and Guangdong provinces were the main fishing provinces in *** assessing three dimensions of vulnerability(exposure,sensitivity and adaptive capacity)to the impacts of a reduction in marine catches in the 11 coastal provinces and municipalities,we found that Hainan,Guangxi,Zhejiang and Fujian provinces had high or very high vulnerability,while the municipalities of Shanghai and Tianjin had low *** suitable adaptation policies and management plans based on the differences in vulnerability among coastal provinces is important in sustainable fisheries management.

关键词： marine capture fisheries coastal provinces and municipalities exploitation history vulnerability

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Otolith chemical signatures of spottedtail goby Synechogobius ommaturus in coastal waters of China

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Chinese Journal of Oceanology and Limnology 2011年第3期29卷 640-646页

作者：王英俊叶振江刘群王巍令曹亮沈伟 College of fisheries Ocean University of China key laboratory for sustainable Utilization of marine Fishery Resources Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences key laboratory of marine Ecology and Environmental Sciences Institute of Oceanology Chinese Academy of Sciences key laboratory of marine and Estuarine fisheries Resources and Ecology Ministry of Agriculture

This study explores the potential existence of local stocks of Synechogobius ommaturus using otolith chemical signatures. The concentrations of 10 elements （K, Ca, Na, Mg, St, Pb, Ba, Mn, Co, Zn） in the otoliths from eight stocks （Dandong, Dalian, Tianjin, Dongying, Weihai, Qingdao, Ganyu and Xiamen） ofS. ommaturus were measured by Inductively Coupled Plasma Mass Spectrometry and regressed against otolith weight. No significant correlation between otolith weight and concentrations of Na, Mg, Ca, Sr, Co, Ba, Zn and Pb were observed. Concentrations of K and Mn were correlated with otolith weight. Consequently, the residuals of the regressions were used instead of the original concentrations in subsequent analyses. Analysis of variance （ANOVA） showed no significant difference between males and females in otolith chemical signatures. Differences were found among the locations for K, Sr, Mn, Co, Ba, Pb, but not for Ca, Na, Mg and Zn. Residuals of the regressions of elemental concentrations against otolith weight that fitted the normal distribution and homogeneity were studied by discriminant analysis. The success of the discriminant function to predict the location of S. ommaturus capture ranged from 100% for Weihai and Xiamen stocks, to only 44.4% and 62.5% for Qingdao and Dandong stocks, respectively. The average prediction success was 80.3%.

关键词： Synechogobius ommaturus otolith chemistry stock identification

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A comparison of fishery biology of jumbo flying squid, Dosidicus gigas outside three Exclusive Economic Zones in the Eastern Pacific Ocean

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Chinese Journal of Oceanology and Limnology 2013年第3期31卷 523-533页

作者：刘必林陈新军易倩 College of marine Sciences Shanghai Ocean University key laboratory of sustainable Exploitation of Oceanic fisheries Resources Ministry of Education

Although many studies on the fishery biology of jumbo flying squid, Dosidicus gigas, have been conducted in the coastal areas within Exclusive Economic Zones （EEZs） of various countries due to its commercial and ecological importance, limited biological information is available from waters outside these EEZs. In this paper, we examined D. gigas fishery biology from waters outside Chilean, Peruvian and Costa Rican EEZs, based on the fishery data collected by Chinese jigging vessels during 2006 to 2010. The dominant mantle lengths olD. gigas were 350-450 mm, 250-400 mm and 250-350 mm outside Chilean, Peruvian and Costa Rican EEZs, respectively. Size structure analysis show that a medium-sized group existed mostly in the waters outside the Chilean and Peruvian EEZs, whereas a small-sized group occurred mainly in the waters outside the Costa Rican EEZ. The longevity of the squid outside the Costa Rican EEZ was less than 10 months, while most of those outside Chilean and Peruvian EEZs were about 1-1.5 years and very few large individuals were 1.5-2 years old. A higher percentage of mature individuals existed outside Costa Rican EEZ implying the region as a potential spawning ground, while lower proportions of mature squid outside the Peruvian and Chilean EEZs indicated that spawning may be occurring outside our study area. Spatial differences in sizes at maturity of the squid are thought to be result from different environmental factors especially different temperature and nutrition among the three areas. Stomach-content analysis showed that cannibalism was important in the diet of D. gigas. Stress generated by jigging may increase the incidence of cannibalism.

关键词： jumbo flying squid fishery biology Peru Chile Costa Rica

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Changes of Protein and Lipid Contents,Amino Acid and Fatty Acid Compositions in Eggs and Yolk-Sac Larvae of American Shad(Alosa sapidissima)

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Journal of Ocean University of China 2018年第2期17卷 413-419页

作者： LIU Zhifeng GAO Xiaoqiang YU Jiuxiang WANG Yaohui GUO Zhenglong HUANG Bin LIU Baoliang HONG Lei key laboratory for sustainable development of marine fisheries of Ministry of Agriculture Qingdao Key Laboratory for Marine Fish Breeding and BiotechnologyYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China fisheries College Ocean University of ChinaQingdao 266003China Jiangsu Zhongyang Group Nantong 226600China

To investigate the changes of the biochemical composition of American shad(Alosa sapidissima) eggs and larvae at embryonic and early larval stages, samples were collected at different development stages from artificial fertilization to the end of yolk absorption including 2 h, 12 h and 30 h after fertilization and newly hatched larvae including 1 and 3 days after hatching. The composition of lipid, fatty acids, protein and amino acids were analyzed. The content of total protein exhibited a decreasing trend during embryogenesis and larval development, and a significant reduction was detected after hatching(P developments with some specificity in the consumption of different amino acids.

关键词： Alosa sapidissima development lipid protein amino acid fatty acid

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An integrative study of larval organogenesis of American shad Alosa sapidissima in histological aspects

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Chinese Journal of Oceanology and Limnology 2016年第1期34卷 136-152页

作者：高小强洪磊刘志峰郭正龙王耀辉雷霁霖 College of fisheries Ocean University of ChinaQingdao 266003China key laboratory for sustainable development of marine fisheries Ministry of AgricultureQingdao Key Laboratory for Marine Fish Breeding and BiotechnologyYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Jiangsu Zhongyang Group Nantong 226600China

We describe organogenesis at a histological level in American shad( Alosa sapidissima) larvae from 0 until 45 days after hatching(DAH). Larval development was divided into four stages based on the feeding mode,external morphological features,and structural changes in the organs: stage 1(0–2 DAH),stage 2(3–5 DAH),stage 3(6–26 DAH) and stage 4(27–45 DAH). At early stage 2(3 DAH),American shad larvae developed the initial digestive and absorptive tissues,including the mouth and anal opening,buccopharyngeal cavity,oesophagus,incipient stomach,anterior and posterior intestine,differentiated hepatocytes,and exocrine pancreas. The digestive and absorptive capacity developed further in stages 2 to 3,at which time the pharyngeal teeth,taste buds,gut mucosa folds,differentiated stomach,and gastric glands could be observed. Four defined compartments were discernible in the heart at 4 DAH. From 3 to 13 DAH,the excretory systems started to develop,accompanied by urinary bladder opening,the appearance and development of primordial pronephros,and the proliferation and convolution of renal tubules. Primordial gills were detected at 2 DAH,the pseudobranch was visible at 6 DAH,and the filaments and lamellae proliferated rapidly during stage 3. The primordial swim bladder was first observed at 2 DAH and started to inflate at 9 DAH; from then on,it expanded constantly. The spleen was first observed at 8 DAH and the thymus was evident at 12 DAH. From stage 4 onwards,most organs essentially manifested an increase in size,number,and complexity of tissue structure.

关键词： Alosa sapidissima larval development ontogeny histology organ differentiation

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Fish assemblage structure in the hypoxic zone in the Changjiang (Yangtze River) estuary and its adjacent waters

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Chinese Journal of Oceanology and Limnology 2010年第3期28卷 459-469页

作者：单秀娟金显仕袁伟 key laboratory for sustainable Utilization of marine fisheries Resource Ministry of Agriculture Key Laboratory for Fishery Resources and Eco-environment Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

Fish assemblage structure in the hypoxic zone in the Changjiang (Yangtze River) estuary and its adjacent waters were analyzed based on data from bottom trawl surveys conducted on the R/V Beidou in June, August and October 2006. Four fish assemblages were identified in each survey using two-way indicator species analysis (TWIA). High fish biomass was found in the northern part, central part and coastal waters of the survey area; in contrast, high fish diversity was found in the southern part of the survey area and the Changjiang estuary outer waters. Therefore, it is difficult to maintain high fishery production when high fish diversity is evenly distributed in the fish community. Fish became smaller and fish size spectra tended to be narrower because of fish species variations and differences in growth characteristics. Fish diversity increased, the age to maturity was reduced and some migrant species were not collected in the surveys. Fish with low economic value, small size, simple age structure and low tropic level were predominant in fish assemblages in the Changjiang estuary and its adjacent waters. The lowest hypoxic value decreased in the Changjiang estuary and its adjacent waters.

关键词： the Changjiang estuary fish assemblage structure diversity size spectrum

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Linkages between the biomass of Scomber japonicus and net primary production in the southern East China Sea

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Acta Oceanologica Sinica 2014年第10期33卷 43-48页

作者： GUAN Wenjiang CHEN Xinjun GAO Feng LI Gang College of marine Sciences Shanghai Ocean University key laboratory of sustainable Exploitation of Oceanic fisheries Resources Ministry of Education

Fish biomass is a critical component of fishery stock assessment and management and it is often estimated from ocean primary production（OPP）. However, the relationship between the biomass of a fish stock and OPP is always complicated due to a variety of trophic controls in the ecosystem. In this paper, we examine the quantitative relationship between the biomass of chub mackerel（Scomber japonicus） and net primary production（NPP） in the southern East China Sea（SECS）, using catch and effort data from the Chinese mainland large light-purse seine fishery logbook and NPP derived from remote sensing. We further discuss the mechanisms of trophic control in regulating this relationship. The results show a significant non-linear relationship exists between standardized CPUE（Catch-Per-Unit-Effort） and NPP（P〈0.05）. This relationship can be described by a convex parabolic curve, where the biomass of chub mackerel increases with NPP to a maximum and then decreases when the NPP exceeds this point. The results imply that the ecosystem in the SECS is subject to complex trophic controls. We speculate that the change in abundance of key species at intermediate trophic levels and/or interspecific competition might contribute to this complex relationship.

关键词： southern East China Sea net primary production Scomber japonicus biomass

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