鱼蛋白的综合利用途径2.酸贮液体鱼蛋白

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。     

鱼蛋白的综合利用途径1.鱼粉

就有关低值鱼及水产加工废弃物中鱼蛋白的开发研究及应用情况做系列介绍,本文就低值鱼蛋白主要利用形式即鱼粉进行了分析和讨论。     

鱼类的鳞片

介绍了鱼类鳞片的类型、形态、作用,阐明了鱼类鳞片是研究鉴定鱼类的年龄、生长速度、生殖季节、性别的重要材料,具有重要的生物学意义.了解鱼的年龄,可以帮助人们测定鱼群的年龄组成,做到捕大留小,适时捕捞,达到保护和合理利用水产资源的目的.     

加工鱼产品种类的电泳鉴定

介绍了几种鱼的白肌在乳酸脱氢酶和蛋白电泳表型上种的特异特征。链,镛,草,青,尼罗罗非鱼白肌乳酸脱氢酶的谱带数不同,活性强度亦不同;蛋白质电泳图谱的迁移率也有差异。这类特征可为加工产品的种类鉴定提供可靠判据。鱼类电泳鉴定技术的标准化及其应用将为规范鱼品加工业,检验鱼产品提供理想的检测手段。     

The Introduced Fish Problem and the Aquarium Fish Industry

Of the 46 species of foreign fishes known to be established as reproducing populations in open waters of the contiguous United States, approximately 65% are known or presumed to have originated from the aquarium fish trade. Many escaped or were released from aquarium fish culture facilities and some were introduced by aquarists. More than 50 additional, non-established fishes, mostly aquarium species, have been collected in the wild. These introductions, with established populations, have not been restricted to the so-called Sun Belt states, but have occurred throughout the U.S.
Because many introductions have resulted in serious negative impcts to native fishes, and most have the potential to do so, it is imperative that the aquarium fish industry and trade take measures to curtail such releases. The means of accomplishing this goal are relatively inexpensive. Industry must assist in public education to reduce introductions by aquarists.     

Identification of the Fish Species Processed to Fish Meal

Abstract

As a consequence of the BSE crisis in Europe, the components of meal produced from fish or warm-blooded animals are under stricter control. PCR-based techniques for species identification of fish meal have been developed and applied to meals produced from a single species each, including herring, capelin, anchovy, horse mackerel and blue whiting. DNA was extracted by means of the cationic detergent cetyltrimethylammonium bromide and a region of the mitochondrial cytochrome b gene was amplified using universal primers. The amplicon was further characterized by restriction fragment length polymorphism (RFLP) and single strand conformation polymorphism (SSCP) analysis. A number of fish meals could be differentiated due to their species-specific DNA patterns.     

Fish under exercise

Improved knowledge on the swimming physiology of fish and its application to fisheries science and aquaculture (i.e., farming a fitter fish) is currently needed in the face of global environmental changes, high fishing pressures, increased aquaculture production as well as increased concern on fish well-being. Here, we review existing data on teleost fish that indicate that sustained exercise at optimal speeds enhances muscle growth and has consequences for flesh quality. Potential added benefits of sustained exercise may be delay of ovarian development and stimulation of immune status. Exercise could represent a natural, noninvasive, and economical approach to improve growth, flesh quality as well as welfare of aquacultured fish: a FitFish for a healthy consumer. All these issues are important for setting directions for policy decisions and future studies in this area. For this purpose, the FitFish workshop on the Swimming Physiology of Fish () was organized to bring together a multidisciplinary group of scientists using exercise models, industrial partners, and policy makers. Sixteen international experts from Europe, North America, and Japan were invited to present their work and view on migration of fishes in their natural environment, beneficial effects of exercise, and applications for sustainable aquaculture. Eighty-eight participants from 19 different countries contributed through a poster session and round table discussion. Eight papers from invited speakers at the workshop have been contributed to this special issue on The Swimming Physiology of Fish.     

鱼类监测系统及预警鱼类的选择

从鱼类行为学、鱼类毒理学、鱼类生理学等方面综述了鱼类监测系统建立的基础,介绍了预警鱼类的选择条件及几种常用的预警鱼类,并对鱼类监测预警系统的未来进行了展望.     

网箱吸鱼泵的研制和试验

1概述近年来网箱养殖业发展迅速 ,浙江省网箱养殖的发展速度和力度处在全国的前列。无论是近海的传统形式的网箱 ,还是从国外引进的大型深水网箱 ,或是在国外网箱基础上国产化的深水网箱及新开发的升降式碟型网箱 ,都已在全省渔区逐步推广应用。但是 ,与网箱养殖配套的起鱼捕捞设备、鱼货分级处理装置等 ,在国内目前还是空白。网箱养殖在收获鱼货或鱼类分箱养殖时 ,都是用小网兜人工起捕。特别是收鱼出售时 ,数量多时间紧 ,而人工起捕速度慢、时间长影响鲜度 ,且劳动强度大 ,迫切要求开发吸鱼泵等装置。2国内外吸鱼泵研究现状和发展趋势国外…