鲜冻香参营养成分分析     

王方国  姚珏 《海洋学研究》1997,15(3):65-67

鲜冻香参营养成分分析王方国张海生（国家海洋局第二海洋研究所，杭州，３１００１２）姚珏江智复（温岭市海洋功能食品有限公司，温岭，３１７５１３）香参是２１种可食用海参之一，有海地瓜Ａｃａｕｄｉｎａｍｏｌｐａｄｉｏｉｄｅａ的雅称，属芋参科Ｍｏｌｐａｄｉｄａ...  相似文献   

Cu₂₊,Zn₂₊,Pb₂₊,Cd₂₊对刺参幼虫的毒性试验   总被引：4，自引：0，他引：4  

张晓燕 《海洋科学》1994,18(2):9-12

为摸清重金属Ｃｕ２＋，Ｚｎ２＋，Ｐｂ２＋，Ｃｄ２＋对刺参幼虫的影响程度，于１９８６～１９８８年在威海市西港渔业公司育苗场进行了其毒性试验。１材料与方法１．１试验方法采用生物毒性试验［１，２］，根据试验持续时间和毒物浓度，分急性中毒试验和亚急性中毒试验。生物致毒的方法是接触致毒，即准确称量一定数量的ＣｕＳＯ４，ＺｎＳＯ４，Ｐｂ（ＮＯ３）２，ＣｄＳＯ４，分别配制成一定浓度的母液，然后按试验组浓度要求将母液加入不同试验组的过滤海水中，试验生物在其内培养。试验所用的过滤海水采自威海市田村小石岛海区的自然…  相似文献   

越南东部近岸区域水产养殖塘分布及其对近海水体中叶绿素a质量浓度的影响     

孙喆  罗菊花  杨井志成  马荣华  张丽  薛坤 《湿地科学》2020,18(2):207-218

近岸区域水产养殖的无序化和集约化扩张会引起一系列水环境问题。利用2015年覆盖越南东部近岸区域的无云或少云的Landsat 8 OLI影像18景,采用面向对象与决策树相结合的分类方法,生产了研究区水产养殖塘空间分布数据;再利用近海水体中叶绿素a质量浓度数据,分析越南东部近岸区域水产养殖塘对近海水体中叶绿素a质量浓度的影响。研究结果表明,2015年,越南东部近岸区域水产养殖塘呈现南北多、中间少的空间分布格局,水产养殖塘总面积为8 947.29 km2;其中,湄公河三角洲的水产养殖塘面积最大,其约占总面积的84.93%;水产养殖塘面积与近海水体中的叶绿素a质量浓度显著正相关,而且水产养殖塘面积与距离海岸线80 km范围内近海水体中的叶绿素a质量浓度关系更密切;近岸区域水产养殖塘面积对近海水体中的叶绿素a质量浓度的影响有季节差异,整体上,春季和秋季其对近海水体中的叶绿素a质量浓度的影响较大。  相似文献   

你真的知道它们是什么吗?——带你走进棘皮动物的海洋世界     

欢休 《海洋世界》2013,(5):30-33

根据传统分类,人们将众多海洋生物主要分为两类:脊椎动物(背部有一列骨骼)和无脊椎动物。至少97%的海洋动物都是无脊椎动物,主要的无脊椎海洋生物都是海洋特有的代表物种。下文要介绍的海星、海胆、海参和一些其他形态的海洋生物组成了其中的棘皮类动物门。  相似文献   

海参科(Holothuriidae)中4种海参的营养成分分析   总被引：3，自引：0，他引：3  

王远红  王聪  郭丽萍  朱春晓  吕志华 《中国海洋大学学报(自然科学版)》2010,40(7)

糙参、乌皱辐肛参、荡皮海参蛋白质含量69.61%～72.32%,总氨基酸57.47%～68.99%;脂肪0.41%～1.12%,不饱和脂肪酸40.92%～54.74%;灰分8.48%～18.33%,常量元素Ca含量最高,Mg、K、Na次之,微量元素中Fe最高,Zn、Cu、Mn、Mo、Se次之,Cr较低,Co未检出;粗多糖在2.56%～7.23%,乌皱辐肛参的粗多糖含量较高。黑乳参中蛋白质含量最高达80.73%,总氨基酸68.99%;脂肪仅含0.1%,不饱和脂肪酸在26.53%;灰分含量9.25%,常量元素由高到低顺序K、Mg、Ca、Na,而P的含量较低,微量元素中Zn含量最高,Fe、Mo次之,Co痕量;粗多糖含量较低为2.28%。分析发现黑乳参与其它3种海参营养成分有明显差异,属于高蛋白、低脂肪食用海参。  相似文献   

糙海参卵子发生及卵黄发生的超微结构   总被引：1，自引：0，他引：1       下载免费PDF全文

吴明灿  张立  潘英  黄光华  李咏梅  杨学明 《热带海洋学报》2015,(3):68-74

通过扫描与透射电镜观察了糙海参(Holothuria scabra)卵子发生及卵黄发生的过程。结果表明,糙海参卵子属于均黄卵,其卵子发生经历卵原细胞、卵黄发生前卵母细胞、卵黄发生期卵母细胞3个阶段。其中,卵黄发生期卵母细胞分别包括卵黄发生早期、中期、后期卵母细胞3个阶段。卵原细胞核大且呈椭圆形,胞质中只分布少量的线粒体;卵黄发生前卵母细胞内有一个空泡状的生发泡(卵核);卵黄发生早期,细胞器种类丰富,数量多;卵黄发生中期,卵黄合成旺盛,是内源性卵黄大量形成的阶段,多种细胞器活跃参与形成卵黄;卵黄发生后期,细胞体积最大,细胞核明显,且位于胞质中间或者靠近动物极突。高尔基体、线粒体及核糖体是形成内源性卵黄最主要的细胞器。卵质膜通过胞饮作用参与外源性卵黄的形成。本结果可为糙海参繁殖生物学和人工繁殖提供参考。  相似文献   

New Bradoriid Arthropods from the Early Cambrian Balang Formation of Eastern Guizhou, South China     

PENG Jin  Feng Hongzhen  Fu Xiaoping  Zhao Yuanlong  Yao Lu 《《地质学报》英文版》2010,84(1):56-68

The Early Cambrian Balang Formation is comprised of mudrock and shale, which was deposited in a shelf environment in the eastern part of Guizhou, south China. The Balang Fauna, which consists of seven phyla, occurs in the middle and upper parts of the Balang Formation. Arthropods are important constituents of the Balang Fauna and include a great number of trilobites, large bivalved arthropods, and newly-discovered well-preserved bradoriid fossils. The bradoriids present include three genera and four species : Comptaluta inflata (Cheng, 1974) emend Hou et al., 2002; Comptaluta kailiensis sp. nov., and Alutella elongeta sp. nov., Aluta sp. This faunal assemblage in the Balang Formation is distinguished from the Tsunyiella Chang, 1964, Songlinella Yin, 1978 and Kunmingella Hou, 1956 assemblage which occurs in the Niutitang and Mingxinsi formations of the Yangtze Platform in middle region of Guizhou and which is earlier than the Balang Formation in age. However, this assemblage resembles the Comptaluta pik, 1968 assemblage from the Early Cambrian Heilinpu Formation in Wuding County, Yuanan Province and from the Ordian Stage of the Cambrian of Australia. The great abundance of Comptaluta pik, 1968 and overall taxonomic diversity of the Comptaluta pik, 1968 assemblage set it distinctly apart from the Alutella Kobayashi et Kato, 1951 and Aluta Hou, 1956 assemblages of the Balang Formation. Alutella Kobayashi et Kato, 1951 and Aluta Hou, 1956 also occur in the Early Cambrian Niutitang Formation of the Yangtze Platform of Guizhou. Individual Bradoriids from the Balang Formation are characterized by large size (3 mm). The discovery of new Bradoriid assemblages not only expands the group’s geographical range and assemblage affinities, but also indicates that Bradoriids migrated eastward from shallow-water to deeper-water environments during the Early Cambrian, indicating that they were capable of life in deeper-water, and adaptation to a new ecological setting.  相似文献   

Polyploidy induction by hydrostatic pressure shock and embryo development of sea cucumber Apostichopus japonicus     

丁君  常亚青  王子臣  宋坚 《中国海洋湖沼学报》2007,25(2):184-190

The manipulation of the chromosome set for commercially valuable marine animals is important for enhancing aquacultural production. In this study, triploid and tetraploid sea cucumber Apostichopus japonicus were induced by hydrostatic pressure shock, and the conditions of appropriate induction were tested with different starting times, and hydrostatic pressure intensities and durations. The highest rate of triploid induction reached 20% and that of tetraploid was 60%. In consideration of the survival rate and hatch rate, the appropriate treatment for triploid was 55 Mpa of hydrostatic pressure for 5 min at 55 min after fertilization (a.f.), while for tetraploid it was 60 Mpa for 5 min at 61 min a.f. The triploid of the sea cucumber could survive through the pelagic larval stage and attachment stage, and develop like the control group of the experiment. The tetraploid, however, could not survive the attachment stage.  相似文献   

Effect of water temperature on digestive enzyme activity and gut mass in sea cucumber Apostichopus japonicus （Selenka）, with special reference to aestivation   总被引：6，自引：0，他引：6  

高菲  杨红生  许强  王方雨  刘广斌 《中国海洋湖沼学报》2009,27(4):714-722

The effect of water temperature on gut mass and digestive enzyme activity in sea cucumber Apostichopus japonicus, including relative gut mass (RGM), amylase, lipase, pepsin and trypsin activities were studied at temperatures of 7, 14, 21, and 28°C over a period of 40 days. Results show that RGM significantly decreased after 40 days at 21°C and markedly decreased over the whole experiment period at 28°C; however, no significant effect of duration was observed at 7 or 14°C. At 14°C, trypsin activity significantly decreased over 10 and 20 days, then increased; amylase and trypsin activity significantly decreased after 40 days at 28°C. However, no significant effect of duration was found on amylase, pepsin or trypsin activities in the other temperature treatment groups. At 28°C, lipase activity peaked in 20 days and then markedly decreased to a minimum at the end of the experiment. On the other hand, pepsin activity at 28°C continuously increased over the whole experimental period. Principle component analysis showed that sea cucumbers on day 40 in the 21°C group and in the previous 20 days in the 28°C group were in the prophase of aestivation. At 28°C, sea cucumbers aestivated at 30–40 days after the start of the experiment. It is concluded that the effect of temperature on the digestion of A. japonicus is comparatively weak within a specific range of water temperatures and aestivation behavior is accompanied by significant changes in RGM and digestive enzyme activities.  相似文献   

齐齐哈尔西排污渠及氧化塘对地下水的污染与防治对策     

张桂芬 《黑龙江地质》1994,5(3):59-64

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