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金乌贼产卵规律及室内人工孵化培育方法探索与研究 总被引:8,自引:2,他引:6
金乌贼(Sepia esculenta Hoyle)在我国海洋生物中占有相当重要的地位,也是北方沿海经济价值最大的头足类,具有生长快、蛋白质含量高、营养丰富、经济与药用价值高、市场好等突出特点,颇具发展前景。探索和研究金乌贼产卵孵化规律与人工育苗养殖新技术、新工艺尤为重要。 相似文献
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金乌贼人工育苗技术要点 总被引:2,自引:0,他引:2
金乌贼(Sepiaesculenta),具有食用价值高,药用价值大,口味鲜美、营养丰富、生长期短等特点,是海洋和海水养殖种类中最大、最具潜在价值的蛋白质资源之一。历史上,金乌贼在我国北方海域中广泛分布,但随着海洋捕捞强度的增加,自然资源量锐减,逐渐成为稀有的水生动物。近几年,我们 相似文献
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金乌贼池塘养殖技术要点 总被引:3,自引:0,他引:3
金乌贼系我国海洋生物中珍贵的高档经济贝类,其蛋白质含量高达鲜重的17%以上,且肉质具低脂肪,并寓含人体所必需的高度不饱和脂肪酸,味道鲜美、可口,营养成份极为丰富,食用价值与保健价值颇高,深受国内外消费者青睐。金乌贼具有适应盐度范围狭窄、饵料难以选择、受刺激立即喷墨等显著特点,其养殖管理技术要求较高。2006年,我们在1亩小池塘中进行了金乌贼人工养殖试验,获得初步成功。 相似文献
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金乌贼(Sepia esculenta Hoyle)是我国海洋生物中蛋白质含量较高的种类,口味鲜美,营养丰富,食用与保健价值均很高.开展金乌贼人工繁育技术研究具有广阔前景和现实意义(金乌贼成体见图1). 相似文献
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<正>金乌贼俗名墨鱼、乌鱼、乌子等,暖温带浅海性底栖种类,是世界乌贼科中重要的经济种类之一,也是我国北方海域中经济价值最大的头足类。金乌贼具有随季节变化进行生殖洄游的特性且其生殖洄游具有局部性、地区性,在金乌贼生殖洄游期间利用拖网捕捞怀卵亲体的捕捞强度的 相似文献
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The nature of the animal taxa that are the most probable candidates for an intensive, commercial aquatic animal husbandry industry is considered. A characterization is presented of those biological criteria that lend the species the necessary physiological and genetic malleability to be adapted and molded into a domesticated race. The animal cultivated must be amenable to intensive management in high-density confinements such as those now being engineered for high-yield aquaculture. Atributes considered are discussed in the context of the various aquacultural ecosystems in which the specific biotype is expected to achieve satisfactory growth and survival. Correlative with bionomic criteria, economic requirements are posed and evaluated in an effort to define a socially and financially profitable agribusiness system. Investment requirements and operating costs are considered in terms of expected returns. However, since production alone is insufficient to sustain an enterprise — i.e. the product must be sold — production costs must be judged against market values. Therefore, ultimate use or consumer acceptance criteria are incorporated into the list of essential requirements for a candidate species for aquafarming. 相似文献
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The pH change in 40 ml of buffer caused by 20 g dry soil may be multiplied by 5600 to provide the lime requirement of mud in a fish pond. The buffer contains 10 g p-nitrophenol, 7.5 g boric acid, 37 g potassium chloride, and 5.25 g potassium hydroxide dissolved and diluted to 1000 ml with distilled water; the buffer pH is adjusted to 8.00. 相似文献
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海上安全生产工作事关重大,安全生产必须警钟长呜,常抓不懈,本文结合本职工作实际,在认真总结加强海上安全工作经验的基础上,分析现状,针对存在的问题,提出如何建立海洋安全生产长效机制的意见,供上级领导参考。 相似文献
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Remedies for pseudoreplication 总被引:1,自引:0,他引:1
Pseudoreplication is the failure of a statistical analysis to properly incorporate the true structure of randomness present in the data. It has been well documented and studied in the ecological literature but has received little attention in the fisheries literature. Avoiding pseudoreplication in analyses of fisheries data can be difficult due to the complexity of the statistical procedures required. However, recent developments in statistical methodology are decreasing the extent to which pseudoreplication has to be tolerated. Seven examples are given here, beginning with simple design-based remedies and progressing to more challenging examples including the model-based remedies of mixed-effects modelling, generalized linear mixed models, state-space models, and geostatistics. 相似文献
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