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1 INTRODUCTION Pelteobagrus fulvidraco (Richardson, 1846) or yellow catfish is slender and scaleless with a gently sloping dorsal profile from anterior to posterior. It is generally black-brown to black-yellow on the back, light yellow on the belly, with … 相似文献
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雷州半岛红树林海区的鱼类种类调查 总被引：5，自引：0，他引：5
对雷州半岛8个红树林分布区设站位进行了生物多样性调查，其中获得鱼类127种，分别隶属于15目58科100属。以鲈形目最多，共27科49属65种，占51．2％。种类出现最多的科为鰕虎鱼科。采获种类最多的站位为北潭。各站位之间鱼类种类具有一定的差异性。调查获得的鱼类体型偏小，大部分种类具有食用价值，其中16种已为人工增养殖的对象。 相似文献
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广西防城沿海鱼类初步调查有115种,隶属于14目63科91属。软骨鱼类有2目3科4属5种,占总数的4.3％。硬骨鱼类有12目60科87属110种,占总数的95.7％,其中鲈形目鱼类占优势,有68种。暧水性鱼类99种,占总数的86％;暧温性鱼类16种,占总数的14％,无冷温性鱼类。 相似文献
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ARTIFICIAL PROPAGATION AND BREEDING OF MARINE FISH IN CHINA 总被引：3，自引：0，他引：3
Since the 1990s, artificial propagation and breeding technique of marine fish in China have developed by way of increasing species and fry numbers, with special stress laid on valuable species. Large quantities of artificial fry can meet the needs of both marine cage culture and pond culture for most species. Experimental results obtained by scientists have been put into use in actual production.Fish fry production has entered a period of sustainable development. So far, at least 44 species (21 families) of marine fish have been successfully bred in China. The artificial fry number of large yellow croaker ( Pseudosciaena crocea) exceeded 300 million in 1999. The species whose artificial fry numbers have each surpassed 10 million annually are red drum ( Sciaenops ocellatus ), Japanese seabass ( Lateolabrax japonicus), cuneate drum (Nibea miichthioides ), spring spawning red seabream (Pagrosomus major ) and threebanded sweethp ( Plectorhynchus cinctus ). Millions of artificial fry are bred annually in the species of black porgy ( Sparus macrocephalus ), Russell‘ s snapper ( Lutjanus russeUi ), javelin gnmt ( Pomadasys hasta ), miiuy croaker ( Miichthys miiuy) and skewband gnmt ( Hapalogenys nitens ). The fish in the family Sciaenidae are the main species in artificial propagation and breeding. Some problems and prospects on marine fish culture and stock enhancement are also discussed and some proposals for sustainable development are put forward in this article. 相似文献
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山东蓬莱沿海鱼类的初步调查 总被引：2，自引：0，他引：2
朱龙 《广东海洋大学学报》1999,19(1):22-29
１９９３年７月至１９９８年８月对蓬莱沿海定置网渔获的鱼类进行初步调查，结果表明，蓬莱沿海鱼类共有１３７种，分别隶属于５９科１０８属，根据其适温类型可分为暖水性一鱼类３４各，占总数的２４．８２％；暖温性鱼类８３种，占总数的６０．５８％；冷浊鱼类２０种，占总数的１４．６０％，根据食性类型，可类，其中游泳动物食性的鱼类３６种，占总数的２６．２８％；浮游动物生有２２种，占总数的１６．０６％；底栖动物食性 相似文献
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湛江高桥红树林区鱼类调查 总被引：1，自引：0，他引：1
2002、2005和2006年7～8月，对广东省湛江市高桥红树林区的鱼类进行了调查，共采集到鱼类75种，隶属于13目38科，其中鲈形目有40种，占53．3％，是高桥红树林区鱼类主要种类。测定了主要鱼类的体重、数量、大小，分析了其食性。 相似文献
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XU Jiachao LIU Xin LI Zhaojie XU Jie XUE Changhu GAO Xin 《中国海洋大学学报(英文版)》2005,4(3):257-261
An alkaline protease from Acetes chinensis was purified and characterized in this study. The steps of purification include ammonium sulfate precipitation, ion-exchange chromatography with Q-sepharose Fast Flow, gel filtration chromatography with S300 and the second ion-exchange chromatography with Q-sepharose Fast Flow. The protease was isolated and purified, which was present and active on protein substrates （azocasein and casein）. The specific protease activity was 17.15 folds and the recovery was 4.67. The molecular weight of the protease was estimated at 23.2kD by SDS-PAGE. With azocasein as the susbstrate, the optimal temperature was 55℃ and the optimal pH value was 5.5. Ion Ca^2＋ could enhance the proteolytic activity of the protease, while Cu^2＋, EDTA and PMSF could inhibit its activity. 相似文献
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19种淡水鱼类的生活史类型研究 总被引：4，自引：0，他引：4
研究了中华鲟,达氏鳇,施氏鲟,青鱼,草鱼,鲢,镛,鲤,赤眼鳟,大眼鳜,鳜,黄尾密鲴,银鲴,花Ｇｕ,鳊,团头鲂,尖头塘鳢,鲫等１９种淡水鱼类的生态参数（Ｌ∞,Ｗ∞,Ｋ,Ｔｍ,Ｔｍａｘ,Ｍ,ＰＦ）和生活史类型。３种鲟鱼类属ｋ－选择,青鱼,草鱼,鲢,镛偏向ｒ－选择。其它１２种鱼类属ｒ－选择。种群繁殖力ＰＦ的数值大体上可反映出某种鱼类的生活史类型,运用Ｂｅｒｅｒｔｏｎ－Ｈｏｌｔ平衡产量模式估算表明,只有合 相似文献
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朱龙 《广东海洋大学学报》1999,(1)
１９９３年７月至１９９８年８月对蓬莱沿海定置网渔获的鱼类进行初步调查，结果表明，蓬莱沿海鱼类共有１３７种，分别隶属于５９科１０８属。根据其适温类型可分为暖水性鱼类３４种，占总数的２４．８２％;暖温性鱼类８３种，占总数的６０．５８％；冷温性鱼类２０种，占总数的１４．６０％。根据食性类型，可分为３类，其中游泳动物食性的鱼类３６种，占总数的２６．２８％；浮游动物食性有２２种，占总数的１６．０６％；底栖动物食性７９种，占总数的５７．６６％．从栖息生境的多样性来看，可分为中上层鱼类３８种，占总数的２７．７４％；近底层鱼类２５种，占总数的１８．２５％；底层鱼类６４种，占总数的４６．７１％；岩礁性鱼类１０种，占总数的７．３０％。并就渔业开发与保护提出了建议。 相似文献
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雷州半岛红树林海区的鱼类种类调查 总被引：2，自引：0，他引：2
对雷州半岛8个红树林分布区设站位进行了生物多样性调查,其中获得鱼类127种,分别隶属于15目58科100属。以鲈形目最多,共27科49属65种,占51.2％。种类出现最多的科为(鱼叚)虎鱼科。采获种类最多的站位为北潭。各站位之间鱼类种类具有一定的差异性。调查获得的鱼类体型偏小,大部分种类具有食用价值,其中16种已为人工增养殖的对象。 相似文献
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Experiment on phosphorus budget of redeye mullet （Liza haematocheila T. ＆ S.） was conducted at water temperature 21℃ and salinity 33. The results showed that the growth phosphorus （phosphorus that allocated into growth, GP） increased from -30.84% to 15.83% by feeding on graded amount of diets （starvation, 1%, 2%, 3%, 4% body weight and satiation）. The GP linearly increased with feeding levels （FL） as GP （mg） = - 0.785 ＋ 0.604 FL, and at satiation the relationship between GP and body weight （BW） was GP （mg） = 1,5991 BW0.7685. In the budget, IP （intake phosphorus） = GP ＋ FP （faecal phosphorus） ＋ EP （excretion phosphorus）. FP showed an irregular tendency with different feeding levels, and EP decreased with increasing feeding levels but rebound at satiation. The P budget at satiation was 100IP = 15.84 GP ＋ 64.62 FP ＋ 19.55 EP. 相似文献
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WANG Xichang Yutaka Fukuda CHEN Shunsheng Masahito Yokoyama CHENG Yudong YUAN Chunhong QU Yinghong Morihiko Sakaguchi 《中国海洋大学学报(英文版)》2005,4(3):229-233
According to the three-dimensional contour maps showing the gel-forming properties of surimi derived from freshwater fish, 8 species of surimi were classified into two types. The-valley type surimi （silver carp, big-head carp, Chinese snake head and blunt snout bream） shows easy setting, low resistance to gel collapse, high enhancement ability with two-step heating, and narrow optimum heating temperature and time area, which are of the same characteristics as the walleye pollack surimi. In contrast, the Plateau type surimi （tilapia, grass carp, mud carp and common carp） exhibits difficult setting, high resistance to gel collapse, no enhancement ability with two-step heating, and wide optimum heating temperature and time area. There are seasonal changes of gelling properties of silver carp surimi, and the setting ability of surimi gel is higher in winter and lower in summer. The marine fish meat gels and the freshwater fish meat gels have the same acceptability for inland Chinese according to the sensory evaluation results. A slight increase in sensory scorings of kamaboko gels occurred when the extract from walleye pollack muscle was added, especially in the odor scoring of silver carp kamaboko gels. 相似文献
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陈曾龙 《广东海洋大学学报》1999,(3)
鲟鱼类个体大且生长较快，属高值名贵鱼类，富有养殖前景。我国鲟鱼类的主要养殖对象是史氏鲟和中华鲟。九十年代末我国在鲟类养殖研究方面已形成一套较为完整的技术措施，逐步趋向规模性生产。随着我国鲟类养殖业的发展，进一步提高仔稚鱼的成活率及研究其适口的最佳配合饲料无疑将成为今后鲟类养殖研究的主要课题。本文就近年我国鲟类养殖技术的主要研究结果综述如下。１ 史氏鲟养殖技术研究现状１．１ 史氏鲟的人工繁殖技术１．１．１ 亲鱼暂养 史氏鲟养殖放流试验站在黑龙江勤得利农场江段用流剌网共捕亲鱼１２尾，暂养于催产池。鱼… 相似文献
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1 INTRODUCTION White shrimp Litopenaeus vannamei, a tropical species, naturally distributes along the eastern Pa- cific coast from northern Mexico to northern Peru along 20℃ isotherms, was introduced into China in 1988 (Cai and Chen, 1995). Temperature w… 相似文献
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三甲胺[N（CH3）3]MIS传感器的研制 总被引：1，自引：0，他引：1
吴英才 《广东海洋大学学报》1998,18(3):54-56
研制探测鱼鲜度的传感元件。用含铟杂质的ＴｉＯ２材料作溅射靶,采用氩离子束镀膜机在硅片上镀膜。用常规蒸铝技术和光刻技术制成ＭＩＳ结构２。结果表明：在１ＭＨｚ的测试频率下,当三甲胺浓度从０变化到０．１％,时电容发生了２５０％的变化。在３Ｖ的偏压下,电流改变了４５０％,直接用鲜鱼测试时,在２５ｈ内该结构的电容和电流的响应很敏感,且接近线性关系。 相似文献
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