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Analyses of fin ray types to detect strontium markers in juvenile blunt-snout bream Megalobrama amblycephala

Ecological Processes 2024年第1期13卷 206-216页

作者： Yahua Zhu Tao Jiang Xiubao Chen Hongbo Liu Quinton Phelps Jian Yang Wuxi Fisheries college Nanjing Agricultural University (WFCNAU) Laboratory of fishery Microchemistry Freshwater Fisheries Research Center Chinese Academy of Fishery Sciences (FFRCCAFS) Department of Biology Missouri State University (DBMSU)

Background Restocking by introducing hatchery-reared fish into wild habitats aids in the restoration of fishery aquatic ecosystems and reefs to increase the abundance of fish resources, restore the ecological balance of water bodies, and enhance ecosystem functioning. Accurately, rapidly, and effectively evaluating the success of restocking using chemical markers（e.g., strontium [Sr]） remains challenging for fisheries management. Consequently, for nonlethal fish sampling, hard tissues, such as fin rays, have received increasing attention as a target for marking method. However, data on the differences in marking different types of fin rays remain limited. Therefore, we exposed juvenile blunt snout bream individuals（Megalobrama amblycephala） to 0（control group） or 800 mg/L of SrCl2·6H2O（marked group） for 5 days and transferred them into normal aerated water for post-immersion culture. We sampled their pectoral, dorsal, ventral, anal, and caudal fin rays. The Sr marks among the fin types were sampled at 0 and 20 days post-immersion and evaluated using an electron probe micro-analyzer（EPMA） for the five-day Sr/Ca ratios, along with line transect and Sr mapping *** Sr marking signatures were observed in all fin types in the marked group, with a success rate of up to 100%. Although marking efficiency varied among the different fin ray types, the highest Sr/Ca ratios were most often detected in the dorsal fin. Cross-sectional Sr concentration maps of all fin rays sampled showed high-Sr domains in the marked group; in contrast, the entire cross-sections of the control group displayed low Sr contents, indicating successful marking *** Fin ray Sr marking is a successful method for juvenile M. amblycephala, with the advantages of nonlethality and negligible sampling injuries, facilitating the rapid and effective evaluation of Sr marking in restocking M. amblycephala.

关键词： Megalobrama amblycephala Juvenile Fin ray Strontium marking Electron probe micro-analyzer

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Effects of Poria cocos polysaccharide on growth performance,physiological parameters,and lipid metabolism of spotted sea bass Lateolabrax maculatus

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Journal of Oceanology and Limnology 2024年第1期42卷 316-331页

作者： Jing LU Zhangfan HUANG Youling YE Anle XU Zhongbao LI Fisheries college Jimei UniversityXiamen 361021China Fujian Provincial Key Laboratory of Marine fishery Resources and Eco-environment Xiamen 361021China

The aquaculture industry has developed significantly over the past few decades and has had a substantial impact on the global food supply and marine fisheries ***,some problems arise behind the scenes due to excessive intensive farming,such as slow animal growth,frequent disease,and lipid metabolism *** problems have limited the sustainable development of the aquaculture industry,and a continuable solution is *** use of fungal polysaccharide appears to provide a solution to these ***,different supplemented levels of Poria cocos polysaccharide(PCP)(0,0.4,0.8,1.2,1.6,and 2.0 g/kg,respectively)were fed to spotted sea bass(Lateolabrax maculatus)in similar size(30.28±0.18 g)in current *** effects of PCP on growth,physiological parameters,and lipid metabolism of spotted sea bass were investigated after a 4-week rearing *** showed,fish with PCP intake presented a significantly higher weight gain,specific growth rate,and a significantly lower feed conversion *** higher trypsin activity in liver and intestine were observed in fish with PCP *** superoxide dismutase activity in serum and liver of fish with PCP intake were significantly improved,while significantly higher serum total antioxidant capacity and hepatic catalase activity were also ***,no significant differences in lysozyme and alkaline phosphatase activity were evident among *** with PCP intake showed a significantly lower total cholesterol,but no noteworthy change in triglyceride and lipid-metabolismrelated genes expression were observed among *** indicated that intake of PCP has a positive effect on growth and antioxidant capacity of spotted sea bass,but seems to have a limited effect on the non-specific immunity and lipid metabolism of spotted sea *** on the regression analysis results,1.4 g/kg of PCP is the optimal dose for spotted sea bass in size(30.28±0.18 g).

关键词： spotted sea bass Poria cocos polysaccharide growth lipid metabolism

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Aero-Hydro-Elastic-Servo Modeling and Dynamic Response Analysis of A Monopile Offshore Wind Turbine Under Different Operating Scenarios

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China Ocean Engineering 2024年第3期38卷 379-393页

作者： XIE Shuang-yi GAO Jian LI Yong-ran JIANG Shu-xin ZHANG Cheng-lin HE Jiao college of Mechanical Engineering Chongqing University of TechnologyChongqing 400044China Beijing Institute of Precision Mechatronics and Controls Beijing 100076China college of Mechanical and Vehicle Engineering Chongqing UniversityChongqing 400044China fishery Machinery and Instrument Research Institute Chinese Academy of Fishery SciencesShanghai 200092China School of Mechanical and Power Engineering Chongqing University of Science&TechnologyChongqing 401331China

This paper constructs a coupled aero-hydro-elastic-servo simulation framework for a monopile offshore wind turbine(OWT).In this framework,a detailed multi-body dynamics model of the monopile OWT including the gearbox,blades,tower and other components(nacelle,hub,bedplate,etc.)has been explicitly *** effects of pile−soil interaction,controller and operational conditions on the turbine dynamic responses are studied systematically in time domain and frequency *** results show that(1)a comprehensive drivetrain model has the capability to provide a more precise representation of the complex dynamic characteristics exhibited by drivetrain components,which can be used as the basis for further study on the dynamic characteristics of the drivetrain.(2)The pile−soil interaction can influence the wind turbine dynamic responses,particularly under the parked condition.(3)The effect of the pile−soil interaction on tower responses is more significant than that on blade responses.(4)The use of the controller can substantially affect the rotor characteristics,which in turn influences the turbine dynamic responses.(5)The tower and blade displacements under the operational condition are much larger than those under the parked *** model and methodology presented in this study demonstrate potential for examining complex dynamic behaviors of the monopile *** ensure accuracy and precision,it is imperative to construct a detailed model of the wind turbine system,while also taking into account simulation efficiency.

关键词： offshore wind turbine(OWT) pile−soil interaction dynamic response parked condition operating condition

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Carnobacteria in fish

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Aquaculture and Fisheries 2024年第2期9卷 193-205页

作者： Einar Ring Norwegian college of fishery Science Faculty of BioscienceFisheries and EconomicsUiT The Arctic University of NorwayTromsø9010Norway

Carnobacterium is a genus of Gram-positive bacteria,within family Carnobacteriaceae,and they are catalase-and oxidase-negative,non-sporing bacteria with properties such as CO_(2)and L(+)-lactic acid production from glucose,but they are not able to grow on acetate *** are ubiquitous lactic acid bacteria and have been isolated from both cold and temperate environments,and they are identified as components of the microbiota in the gastrointestinal(GI)tract of salmonids and several other fish species of which Carnobacterium(piscicola)maltaromaticum,Carnobacterium mobile,Carnobacterium divergens,Carnobacterium alterfunitum,and Carnobacterium inhibens are *** the last two decades several studies have revealed that carnobacteria can act as probiotics to promote health benefits of fish,as well as they in ex vivo studies to some extent can out-compete *** addition to beneficial effects,information is available that some carnobacteria species causing fish *** aim of the present review is to present an updated overview of Carnobacterium in fish,with focus on their presence in the GI tract,their use as probiotic supplement and general information on pathogenic carnobacteria.

关键词： Carnobacterium Gastrointestinal tract Probiotics Fish health Pathogenic

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Responding of zooplankton to environmental factor changes in the Changjiang River estuarine regions in spring-summer from 2016 to 2020

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Journal of Oceanology and Limnology 2024年第2期42卷 544-559页

作者： Jieqing YANG Dongrong ZHANG Yuange CHEN Longling OUYANG Yangyang YANG Jin ZHOU Yunrong SHI East China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesKey Laboratory of East China Sea Fishery Resources ExploitationMinistry of Agriculture and Rural AffairsShanghai 200090China Key Laboratory of Engineering Oceanography Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China college of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306China

The estuarine areas are under frequent influence from freshwater intrusion and ocean currents,in which zooplankton species are diversified and variable as they are sensitive to physio-chemical variations in ***,understanding the relationships between zooplankton and environmental factors help us know the water *** achieve co-existence with species in similar ecological group or habit,they could inevitably alter themselves to fit the ecology and adjust the function according to the competitive exclusion in ecological ***,information of the co-existence of dominant species in the Changjiang(Yangtze)River estuary(CRE)and adjacent waters remains *** explored the relationships between dominant zooplankton and environmental factors in the study region in spring-summer from 2016 to 2020,involving particularly the composition of dominant species,ecological groups,their relationships with environmental factors,and co-existence of important species,using the non-multidimensional scale analysis(nMDS)method and redundancy *** show that Labidocera euchaeta and Tortanus vermiculus were dominant species in the study *** turnover rate of dominant zooplankton was greater(>50%)in spring while the species number was higher in *** dominant species were estuarine,offshore,and eurytopic based on the adaptation to *** spring,the ecological groups were dominated by estuarine species,while in summer by estuarine and offshore *** addition,the nMDS showed that the dominant species in the same ecological group were more dispersed and not prominently clustered;the dominant species were staggered among different ecological *** temperature,salinity,pH,dissolved oxygen,and chlorophyll a were the main environmental factors on the distribution of the dominant species in spring,while in summer were dissolved oxygen,temperature,salinity,and *** domination of medusae of Nemopsis bachei and Pleurobrachia globosa in zo

关键词： Changjiang River estuary(CRE) zooplankton dominant species ecological group environmental factor co-existence

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Integrated multi-omics analysis reveals liver metabolic reprogramming by fish iridovirus and antiviral function of alpha-linolenic acid

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Zoological Research 2024年第3期45卷 520-534页

作者： Lin Liu Ya Zhang Meng-Di Yuan Dong-Miao Xiao Wei-Hua Xu Qi Zheng Qi-Wei Qin You-Hua Huang Xiao-Hong Huang college of Marine Sciences South China Agricultural UniversityGuangdong Laboratory for Lingnan Modern AgricultureGuangzhouGuangdong 510642China Nansha-South China Agricultural University fishery Research Institute GuangzhouGuangdong 511464China Southern Marine Science and Engineering Guangdong Laboratory ZhuhaiGuangdong 519082China

Iridovirus poses a substantial threat to global aquaculture due to its high mortality rate;however,the molecular mechanisms underpinning its pathogenesis are not well ***,a multi-omics approach was applied to groupers infected with Singapore grouper iridovirus(SGIV),focusing on the roles of key *** showed that SGIV induced obvious histopathological damage and changes in metabolic enzymes within the ***,SGIV significantly reduced the contents of lipid droplets,triglycerides,cholesterol,and *** analysis indicated that the altered metabolites were enriched in 19 pathways,with a notable down-regulation of lipid metabolites such as glycerophosphates and alpha-linolenic acid(ALA),consistent with disturbed lipid homeostasis in the *** of transcriptomic and metabolomic data revealed that the top enriched pathways were related to cell growth and death and nucleotide,carbohydrate,amino acid,and lipid metabolism,supporting the conclusion that SGIV infection induced liver metabolic *** integrative transcriptomic and proteomic analysis indicated that SGIV infection activated crucial molecular events in a phagosome-immune depression-metabolism dysregulation-necrosis signaling *** note,integrative multi-omics analysis demonstrated the consumption of ALA and linoleic acid(LA)metabolites,and the accumulation of L-glutamic acid(GA),accompanied by alterations in immune,inflammation,and cell death-related *** experimental data showed that ALA,but not GA,suppressed SGIV replication by activating antioxidant and anti-inflammatory responses in the ***,these findings provide a comprehensive resource for understanding host response dynamics during fish iridovirus infection and highlight the antiviral potential of ALA in the prevention and treatment of iridoviral diseases.

关键词： Iridovirus Liver damage Metabolic reprogramming SGIV Alpha-linolenic acid Antiinflammatory

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Integrative analysis of transcriptomic profile reveals potential roles of miRNAs in regulating development of Marsupenaeus japonicas

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Journal of Oceanology and Limnology 2024年第1期42卷 201-215页

作者： Jing WANG Longjun PU Xiaojuan ZHANG Cuicui LIANG Dandan DONG Jiantao GUAN Huarong GUO Ministry of Education Key Laboratory of Marine Genetics and Breeding College of Marine Life SciencesOcean University of ChinaQingdao 266003China Institute of Evolution&Marine Biodiversity Ocean University of ChinaQingdao 266003China Yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China

Regulation of microRNAs(miRNAs)on various biological processes has been a surprising and exciting *** of miRNAs is the first step to comprehensively understand their ***,attempts on global identification and functional verification of miRNAs are very limited in penaeid shrimp Marsupenaeus japonicus,an economically important aquatic *** performing an integrated analysis of transcriptomic profile from gastrula embryos of ***,21conserved miRNAs in ***(mja-miRNAs),belonging to 19 miRNA families,were identified and *** the 21 mja-miRNAs,15 miRNAs were successfully verified to be predominantly expressed in gastrula stage,where they displayed dynamic expression patterns compared with those in naupliuin *** on perfect or near-perfect match to target region,120 target genes were predicted at transcriptome-wide ***,gene ontology(GO)classification and metabolic pathway annotation revealed eight targets that were actively involved in developmental *** the predicted miRNA-mRNA pairs,six targets were then randomly selected and experimentally validated by dual luciferase reporter assay,where three pairs were proved with potential targeting ***,to search for conserved miRNAs potentially involved in early development of ***,we combined in silico and experimental methods,which can be applied in other organisms as *** data implied important roles of miRNAs in the early embryonic development and also suggested the presence of complex miRNA-mRNA functional networks in ***.

关键词： microRNAs(miRNAs) identification Marsupenaeus japonicus embryo transcriptome

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Simulation and forecasting of fishery weather based on statistical machine learning

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Information Processing in Agriculture 2024年第1期11卷 127-142页

作者： Xueqian Fu Chunyu Zhang Fuhao Chang Lingling Han Xiaolong Zhao Zhengjie Wang Qiaoyu Ma National Innovation Center for Digital fishery China Agricultural UniversityBeijingChina Key Laboratory of Smart Farming Technologies for Aquatic Animal and Livestock Ministry of Agriculture and Rural AffairsBeijingChina Beijing Engineering and Technology Research Center for Internet of Things in Agriculture BeijingChina college of Information and Electrical Engineering China Agricultural UniversityBeijingChina

As the new generation of artificial intelligence(AI)continues to evolve,weather big data and statistical machine learning(SML)technologies complement each other and are deeply integrated to significantly improve the processing and forecasting accuracy of fishery *** fishery weather services play a crucial role in fishery production,serving as a great safeguard for economic benefits and personal safety,enabling fishermen to carry out fishery production better,and contributing to the sustainable development of the fishery *** objective of this paper is to offer an understanding of the present state of research and development in SML technology for simulating and forecasting fishery ***,we analyze the current state of research and technical features of SML in weather and summarize the applications of SML in simulation and forecasting of fishery weather,which mainly include three aspects:fishery weather scenario generation,fishery weather forecasting,and fishery extreme weather *** also illustrate the main technical means and principles of SML ***,we summarize the most advanced SML fields and provide an outlook on their application value in the field of fishery weather.

关键词： fishery weather Statistical machine learning Weather generation Weather forecasting Extreme weather warning

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An Improved Chromosome-Level Genome Assembly and Annotation of Belted Beard Grunt(Hapalogenys analis)

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Journal of Ocean University of China 2024年第4期23卷 1026-1034页

作者： GAO Tianxiang WANG Yiting SHI Huilai PING Hongling LIU Qi ZHANG Yang fishery college Zhejiang Ocean UniversityZhoushan 316022China Zhejiang Province Key Laboratory of Mariculture and Enhancement Zhejiang Marine Fisheries Research InstituteZhoushan 316021China Wuhan Onemore-Tech Co. Ltd.Wuhan 430076China Shenzhen Institute of Quality&Safety Inspection and Research Shenzhen 518000China

Hapalogenys analis(order Lobotiformes)is an economically and ecologically significant fish *** is a typical sedentary rocky reef fish and is primarily found in the northern Pacific ***,we used Hi-C and PacBio sequencing technique to assemble a high-quality,chromosome-level genome for this *** 539 Mb genome had a contig N50 with a size of 3.43 Mb,while 755 contigs clustered into 24 chromosomal groups with an anchoring rate of 99.02%.Of the total genomic sequence,132.74Mb(24.39%)were annotated as repeat elements.A total of 21360 protein-coding genes were identified,of which 20787 genes(97.32%)were successfully annotated to public *** BUSCO evaluation indicated that 96.90%of the total orthologous genes were *** phylogenetic tree representing *** and 14 other bony fish species indicated that the *** genome contained 364 expanded gene families related to olfactory receptor activity,compared with the common ancestor of *** and *** genomic analysis further identified 3584 contracted gene ***-site modeling identified 277 genes experiencing positive selection,which may facilitate the adaptation to rocky reef *** genome reported here is helpful for ecological and evolutionary studies of ***.

关键词： Hapalogenys analis de novo assembly PacBio comparative genomics

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Hypoglycemic mechanism of Tegillarca granosa polysaccharides on type 2 diabetic mice by altering gut microbiota and regulating the PI3K-akt signaling pathwaye

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Food Science and Human Wellness 2024年第2期13卷 842-855页

作者： Qihong Jiang Lin Chen Rui Wang Yin Chen Shanggui Deng Guoxin Shen Shulai Liu Xingwei Xiang college of Food Science and Technology Zhejiang University of TechnologyHangzhou 310014China Key Laboratory of Marine fishery Resources Exploitment&Utilization of Zhejiang Province Hangzhou 310014China National R&D Branch Center for Pelagic Aquatic Products Processing(Hangzhou) Hangzhou 310014China Institute of Sericultural and Tea Zhejiang Academy of Agricultural SciencesHangzhou 310021China college of Food and Pharmacy Zhejiang Ocean UniversityZhoushan 316000China

Type 2 diabetes mellitus(T2DM)is a complex metabolic disease threatening human *** investigated the effects of Tegillarca granosa polysaccharide(TGP)and determined its potential mechanisms in a mouse model of T2DM established through a high-fat diet and ***(5.1×10^(3) Da)was composed of mannose,glucosamine,rhamnose,glucuronic acid,galactosamine,glucose,galactose,xylose,and *** could significantly alleviate weight loss,reduce fasting blood glucose levels,reverse dyslipidemia,reduce liver damage from oxidative stress,and improve insulin ***-PCR and Western blotting indicated that TGP could activate the phosphatidylinositol-3-kinase/protein kinase B signaling pathway to regulate disorders in glucolipid metabolism and improve insulin *** increased the abundance of Allobaculum,Akkermansia,and Bifidobacterium,restored the microbiota abundance in the intestinal tracts of mice with T2DM,and promoted short-chain fatty acid *** study provides new insights into the antidiabetic effects of TGP and highlights its potential as a natural hypoglycemic nutraceutical.

关键词： Tegillarca granosa polysaccharide Type 2 diabetes mellitus Glycolipid metabolism PI3K/Akt signaling pathway

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