中国水产加工的发展历程 产品形态和需求市场     

包特力根白乙  姜丹  牟海珍 《农产品加工．学刊》2008,(5):69-72

水产加工位居渔业生产延长线上,且与水产品流通具有不即不离的关系,其发展将决定整个水产业的兴衰成败。通过对中国水产加工业的发展历程、产品形态和需求市场分析,认为中国水产加工业发展模式由外延扩张型向内涵增进型转变,对整个水产业发展起到了重要作用;产品形态上由传统加工向现代加工方向发展,加工技术得到提升和深化;需求市场由国内拓展向海外扩大,产业规模呈现持续增长的势头。  相似文献   

Mesoscale eddies modulate the dynamics of human fishing activities in the global midlatitude ocean     

Qinwang Xing  Haiqing Yu  Hui Wang  Shin-ichi Ito  Fei Chai 《Fish and Fisheries》2023,24(4):527-543

Frequent fishing activities are causing overfishing, destroying the habitat of marine life, and threatening global marine biodiversity. Understanding the dynamics of fishing activities and their drivers is crucial for designing and implementing effective ocean management. The fishing activities in the open sea are reported to be characterized by high spatial variability in local waters; however, it is still unclear whether their high spatial variability is random or regulated by oceanographic variations. Mesoscale eddies are ubiquitous swirling currents that dominate locally biogeochemical processes. Previous case studies presented an ongoing debate regarding how eddies exert impacts on high trophic organisms, which imposes limitations on understanding the dynamics of fishing activities based on the bottom-top control hypothesis from eddies to fish and fishing activities. By combining global fishing activities from deep learning and oceanic eddy atlases from satellite monitoring, we showed that the spatial variations in fishing activities were closely related to mesoscale eddies in the global midlatitude ocean, confirming that fishing activities primarily targeting tuna, were aggregated in (repelled from) anticyclonic (cyclonic) eddy cores. This eddy-fishing activity relationship was opposite to satellite-observed primary production but corresponded well with the temperature and oxygen content in deeper water. By integrating existing evidence, we attribute eddy-related fishing activities to a reasonable hypothesis that warm and oxygen-rich deeper water in anticyclonic eddies relieves the thermal and anoxic constraints for diving predation by tuna while the constraints are aggravated in cold and oxygen-poor cyclonic eddies.  相似文献   

A meta-analytic review of monoterpene for fish anaesthesia     

Luís Félix  Raquel Vieira  Sandra M. Monteiro  Carlos Venâncio 《Fish and Fisheries》2023,24(3):367-380

The use of anaesthetic agents has been increasing to address the welfare needs of different fish species in scientific and aquaculture practices. MS-222 is the most used synthetic anaesthetic but some limitations and side effects have been reported. Natural substances have been used as potential substitutes with clove oil playing an important role due to its eugenol content. Yet, other monoterpenes have shown anaesthetic properties in different fish species. As such, a quantitative assessment has been conducted to explicitly relate and summarise the use of monoterpenes with described anaesthetic properties in fish. A combined PubMed, Web of Science, Scopus, PubMed Central and Europe PMC electronic database search was performed, from January 2002 to August 2022, following the PRISMA guidelines. Out of 1555 articles retrieved from the literature search, 30 English reports met the criteria for inclusion in the meta-analysis through a generic inverse-variance method (random-effects model) and according to the fish age. The findings show a total of 10 different monoterpenes with high homogeneity and effectiveness in inducing anaesthesia and recovery according to the fish anaesthetic criteria. Further subgroup analysis showed these effects were independent of fish age. Meta-regression of the included studies revealed an inverse linear association between anaesthesia induction and recovery time and water bath temperature while no further correlation was found with other confounding factors (body weight, water pH and dissolved oxygen levels). Although further studies will be required, this meta-analysis provides robust evidence that different monoterpenes serve as an attractive and effective alternative for fish anaesthesia although water bath temperature also played an important role in anaesthesia outcome.  相似文献   

禁捕后长江鱼类资源监测的技术指标建议     

杨海乐  杨俊琳  方冬冬  朱传亚  沈丽  张辉  吴金明  危起伟 《水产学报》2023,47(2):029316-029316

为了确定监测时长、监测网具、站位布局对禁捕后长江鱼类资源监测评估的有效性,于2021年5—7月在长江中游10个站位开展了鱼类资源捕捞监测,每个站位连续监测15 d,从日捕获量、物种记录数、渔获物群落结构等3方面着手,对监测时长、监测网具、站位布局等的设置进行探讨。结果显示,连续11 d捕捞监测所得累计日均渔获量基本达到稳定,连续15 d捕捞监测可以记录到站位近70%的鱼类种类数,所得累计鱼类群落结构基本达到稳定。网具类型、规格的使用覆盖对监测结果中鱼类种类记录数、鱼类群落结构有明显影响,网具使用量对监测结果中日均渔获量有明显影响。10个监测站位间的鱼类群落结构具有明显差异,结合监测站位间的空间距离来看,鱼类群落结构具有较高的空间异质性。研究表明,为了保障评估结果的准确性,基于原始监测数据进行相关评估之前,有必要对监测数据的充分性、有效性进行检验,网具类型、规格和使用量对监测结果的影响应予以适当考虑,各具体江段的鱼类群落结构评估应由相应具体江段的监测结果来支撑。本研究将为长江流域重点水域全面禁捕后的水生生物资源监测评估提供科学支撑。  相似文献   

食用鱼类甲醛本底含量研究初报   总被引：4，自引：0，他引：4  

柳淑芳  杜永芳  朱文慧  马敬军  周德庆 《海洋水产研究》2005,26(6):77-82

通过对56种海水鱼共计105个样品,16种淡水鱼共计19个样品的甲醛本底含量研究。结果发现,食用鱼类的甲醛本底含量不同且差异较大,海水活鱼与海水冷冻鱼的甲醛含量均显著高于淡水活鱼与淡水冷冻鱼（P〈0．01）;海水鱼中龙头鱼和鳕鱼类样品甲醛本底含量较高;大部分淡水鱼未检出甲醛;同一品种不同存活状态的鱼,其甲醛含量也不同,活体鱼中甲醛含量最低,冰鲜样品中甲醛含量最高,冷冻样品随着冻藏时间的延长甲醛含量呈现上升趋势。  相似文献   

美国大口胭脂鱼幼鱼外部形态的初步研究   总被引：1，自引：0，他引：1  

黄辨非  罗静波  杨代勤  邓可 《湖北农学院学报》2000,20(3):226-228

观察了全长１０．１￣１７．８ｃｍ、体重１７．０￣８１．０ｇ的美国大口胭脂鱼（Ｉｃｔｉｏｂｕｓ ｃｙｐｒｉｎｅｌｌｕｓ）幼鱼的外部形态和可数性状,采用框架形态分析法进行了形态学性状测定,并与银鲫、鲤鱼的主要可数可量性状进行了比较。  相似文献   

Differences between Pagrus major and Pagrus auratus through mainly mtDNA control region analysis   总被引：1，自引：0，他引：1  

Kazuo Tabata and  Nobuhiko Taniguchi 《Fisheries Science》2000,66(1):9-18

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Effect of dietary fish meal levels on environmental phosphorus loading from carp culture   总被引：2，自引：0，他引：2  

P ARVEEN  JAHAN  T AKESHI  WATANABE  S HUICHI  SATOH  V ISWANATH  KIRON 《Fisheries Science》2000,66(2):204-210

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鱼蛋白的综合利用途径2.酸贮液体鱼蛋白   总被引：6，自引：1，他引：5  

刘俊荣 《水产科学》2000,19(6):36-38

酸贮液体鱼蛋白是开发低值鱼及水产加工废弃物中鱼蛋白的有效途径之一,本文就酸贮液体鱼蛋白的生产和使用状况进行了分析和讨论,并将鱼粉和酸贮液体鱼蛋白二者进行了比较。  相似文献   

Epidermal growth factor receptor-protein kinase interactions in hepatic membranes of rainbow trout (Oncorhynchus mykiss)     

J.L. Newsted  J.P. Giesy 《Fish physiology and biochemistry》2000,22(3):181-189

The association between the presence of EGF binding and its associated tyrosine kinase activity was investigated in the hepatic membranes of rainbow trout (Oncorhynchus mykiss). Time course experiments indicted that the binding of EGF to hepatic membranes was temperature dependent and resulted in increased phosphorylation of membrane components. The phosphorylation reaction was dependent on the presence of divalent ions (Mg²⁺ and Mn²⁺) but not monovalent ions (Na⁺ and K⁺) or calcium. Western blot analysis of phosphorylated trout membranes indicated protein bands at 150 and 180 kDa which is similar to that observed in mammals. Use of specific substrates and protein kinase inhibitors also indicated that the increase in EGF stimulated phosphorylation was related to an increase in tyrosine kinase activity. These data support the hypothesis that trout have an EGF-like receptor that has binding and biological activities similar to that observed in mammalian species.  相似文献