稻,鱼,果,菜,萍综合立体开发的工程技术

遵循“时空”论的唯物主义观点，探索建设稻金高产田的微型水利工程、实施稻、鱼、果、菜、萍优化组合立体开发的技术。达利投资少、成本低、使收获的食物总量中增加蛋白质200％以上、提高效益300％以上，笔者从1989～1997年实施稻鱼亩产双千斤、双千元的试验、已实现了稻、鱼、果、菜、萍综合开发年jh产稻谷1156斤、产成鱼500斤、年亩产值8200元，利润达1040～3140元的高产高效纪录。同时每亩增加蓄水4侧立方米以上，不仅可实现每立方米水体可增产Ikg鱼，还起到了抗旱保鱼保粮的作用。部省有关领导专家到现场调查研究后认为：养鱼稻田建标…     

珠海市金湾区上下联动,紧密配合,克服困难,灾年不减产

2006年,珠海市水产养殖业是历经磨难的一年,先是4月底至6月20日连续近50天的连绵大雨,给该市的渔业养殖生产造成了重大损失,7月底8月初50年一遇的台风“派比安”在该市登陆,低洼池塘塘水过基、鱼虾走失、养殖堤围崩溃、养殖水体环境剧变,养殖对虾、罗非鱼、锯缘青蟹发病远高于去年。今年年头,珠海市渔业科技入户示范工程领导小组制定了更加详细的工作方案和实施步骤,针对各主推水产养殖品种,制定了更为周到、细致的技术培训计划和病害防治措施,省、市、区、镇各级渔业(农业)行政主管部门、高等院校和研究所的教授专家及技术指导人员、养殖农户紧密的互相配合,上下联动,形成组织有力、措施到位、协调有序、处理及时、高效服务的2006年渔业科技入户良好工作局面。入户工作以解决养殖户最关心、最直接、最现实的利益问题为重点,急农民所急、想群众所想,依靠省、市级专家组和技术人员的技术和高等院校、研究所实验检测设备,技术指导员通过普通镜检等简易检测手段能够当场解决的立即现场解决,不能立马解决的想办法尽可能解决,对于塘头简易实验仪器检测设备不能解决、确诊的病鱼、虾、蟹样品,通过采样向省级科研院校、研究所及时送检或者向省专家组求助,邀请省级专家到...     

池养草,鲂,鲢,鳙鱼的秋季繁殖

1991年高邮市遭受特大洪涝灾害,为解决灾后复产,我们在司徒乡养殖场、国营水产良种场、官垛鱼苗场进行了草、鲂、鲢、鳙鱼的秋季繁殖试验,现报告如下。     

鱼,蚌,菱,藕循环流水立体种养

循环流水立体种养，是应用生态学原理组合的以鱼为主，鱼蚌菱藕等多元生产、闭合循环的种养系统，是一种高效优化立体开发模式，其技术要求为；一、科学建池鱼池是由蓄水池、流水池、二级池塘、三级河蚌池、四级水生植物池五个生态系统组成，用循环流水作媒介联络。蓄水池要建在地势较高位置上，以水泥和砖做材料。长短与流水池组相齐；二级池塘最好利用原有池塘，宽度与流水池组相同，长度根据条件灵活掌握，比例最好是一亩面积流水地配制8～10亩M级池塘，塘底为斜坡状，水深2米左右。三级池为河蚌吊养池，主要是为增加综合收益而设。四级…     

展览,你说,我说

几年前,许多厂家企业还在为国内没有渔业、观赏鱼方面的展览而犯愁,他们常四处追问哪有渔业或是观赏鱼的展览会。然而自从1996年首届国际渔业博览会及1997年首届北京国际观赏鱼水族展览会以来,刚刚起步的渔业、观赏鱼展览会,却又陷入无序、纷乱、各自为阵的状态,刚从展览会中获益的厂商还未来得及高兴,便被蜂拥而上的各种展览会所困扰。面对大小不同的展览,企业、商家、观众们真是莫衷一是,各有评说。     

林,果,牧,渔高效立体综合开发技术

1993年以来，我f（根据生态学原理，综合本地实际情况，在盐都县义丰镇水产村进行了鱼、果树、猪、鸭、菜、萍综合开发试验。1试验条件1．1地点试验在我镇水产村进行，占地总面积20hm2，平均水深2．5m，池塘间距纵向3．5m，横向6．2m。1．2土质为壤质潮褐上，有机质含量为0．6％-1．2％，全氮含量0．04％-0．06％，速效磷含量为5％-10％。1．3水质主要水源为河道水，其矿化度为0．15-0．3g／l，pH值为7．2—7．9．2技术措施2．1渔、果树、萍结合水中养鱼、萍，池埂种果树栽种梨树1500株、桃树200株，苹果树800株。苹果树种在纵向池埂中，南…     

鱼,蚌,菱,藕循环流水高效立体开发

循环流水高效优化立体开发养殖，是应用生态学原理组合的以鱼为主、鱼蚌菱藕等多元生产、闭合循环的养殖系统，是理想的高效优化立体开发模式，现结合盐都县生产实践，介绍其技术要点，供参考。1科学建池鱼池结构是由蓄水池、流水池、二级池塘、三级河蚌地、四级水生植物池5个生态系统，用循环流水作媒介联络。蓄水地要建在地势较高位置上，以水泥和砖头做材料，长短与流水池组相齐；二级池塘最好利用原有池塘，宽度与流水池组相同，长度根据条件灵活掌握，比例最好是667m2面积流水池，配制0.53～0.67hm2二级池塘，塘底为斜坡状，水深2m左右…     

鱼,珠,蚌立体养殖技术

湖北省武穴市朱奇武村珍珠一场,近几年来,优化生产结构,实行鱼、珠、蚌立体养殖,以鱼带蚌,以蚌补鱼,经济效益不断提高。1991年洪灾之年仍然取得了较好的经济效益。现将该场实行鱼、珠、蚌立体养殖技术简介如下。 1.池塘的选择进行鱼、珠、蚌立体养殖的池塘,要求水源条件优越,灌排方便,水质清新无污染,蓄水要达到2.5米以上。池底淤泥不能过厚,过     

鳗种暂养,包装,运输技术

鳗种暂养、包装、运输技术江苏是我国主要的鳗苗产区，沿海沿江各养殖单位除少量留场养殖成鳗外，每年有大量鳗种销往广东、福建等地。随着近年来养鳗业的发展，鳗种需要量越来越大，供需矛盾突出。１９９３年每千克５００尾规格的鳗种，尾价达１０元左右。如何掌握鳗种的...     

解放思想,科学管理,大力发展淡水养鱼

我队位于天津市区边沿,有925户4,006口人,男女劳力2,225个,共有耕地4,516亩,其中粮田面积3,627亩,园田889亩。养鱼水面400亩,大队有副业厂五个,还有养猪场、养鸡场、养貂场和养鱼队,是个农林牧副渔全面发展的大队。在党的十一届三中全会路线方针指引下,我们大队解放思想,提高认识,进一步明确,在搞好粮食生产的同时,把养鱼做为一项重要事业来抓。为此,我们在改变生产条件上狠下功夫,狠抓管理,实行科学养鱼。近几年来,抓出一定成效,使成鱼产量由七八年的22万斤,上升到八○年的29万     

Marine and coastal protected and conserved areas strategy in Brazil: Context,lessons, challenges,finance, participation,new management models,and first results

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Anguilla huangi Teng, Lin, and Tzeng, 2009, is a junior synonym of Anguilla luzonensis Watanabe, Aoyama, and Tsukamoto, 2009

Anguilla luzonensis and A. huangi were each described in 2009 using eels obtained from northern Luzon Island. We examined the taxonomic status of these two groups of eels using morphological and molecular genetic characters. There were no significant differences in two vertebrae counts between eels of A. luzonensis and A. huangi. Mitochondrial 16S ribosomal RNA and cytochrome b genes sequences were obtained and compared among 28 specimens of A. luzonensis, the holotypes of A. luzonensis and A. huangi, and one specimen of the other 15 anguillid species. The specimens of A. luzonensis exhibited almost identical sequences, including the holotype, with only a few site differences, and the genetic difference between the holotypes of A. luzonensis and A. huangi was within the range of differences of specimens of A. luzonensis. The other anguillid species were genetically very different from A. luzonensis and A. huangi, although A. interioris is a closely related species. It is clear that A. luzonensis and A. huangi are the same species, and according to the principle of priority in zoological nomenclature, A. luzonensis Watanabe, Aoyama, and Tsukamoto, 2009 is the valid species name, and A. huangi Teng, Lin, and Tzeng, 2009 is a junior synonym of A. luzonensis.     

驼背鲈(Chromileptes altivelis)的胚胎发育及仔、稚、幼鱼形态观察

对驼背鲈(Chromileptes altivelis)的胚胎发育及仔、稚、幼鱼的形态特征进行了详细的观察与研究,描述了从受精卵到仔、稚、幼鱼各发育期的时间和形态特征变化。结果表明,在水温25-26℃、盐度30的海水中,受精卵历时27 h 25 min完成整个胚胎发育过程,经历从卵裂、囊胚、原肠、神经胚到肌节形成、各器官的逐渐形成、变化、完善等一系列的胚胎发育和变化过程;根据其卵黄囊消长情况、鳞片的覆盖状态、体色发生的不同变化以及第二背鳍和腹鳍的消长,将胚后发育分为仔、稚、幼鱼3个阶段。在水温22-26℃、盐度29-31、DO≥5 mg/L的条件下,2-3 d仔鱼卵黄囊消失,开口摄食;生长发育至31 d,仔鱼已变态进入稚鱼期;培育至57 d,稚鱼完成变态,成为幼鱼。第二背鳍棘和腹鳍棘的生长与收缩等石斑鱼类早期发育的共性生长特征及其体表特性体色变化特征为驼背鲈胚后发育过程中最明显的特征。     

Brazilian wetlands: their definition,delineation, and classification for research,sustainable management,and protection

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Effects of levamisole,echinacea, and thyme oral administration on growth factors,blood parameters,and immunity in beluga,Huso huso

A total of 180 fish (95.50 g) were fed with 0.1% levamisole, 0.5% thyme, and 0.5% echinacea crude extract for 60 days. The control group received no stimulant. The results of growth parameters indicated a significant positive effect of levamisole in comparison with the control group, though it was not significantly different from echinacea and thyme treatments (P > 0.05). No mortalities were observed in the treatments. Feed conversion ratio and protein efficiency ratio did not differ significantly between the treatments. The highest numbers of white and red blood cells and the greatest amounts of hemoglobin and hematocrit were detected in the levamisole treatment, showing significant differences with the other groups in the percentage of hemoglobin only (P < 0.05). The highest levels of MCH and MCHC were also measured in the levamisole treatment. Differential count of white blood cells revealed no significant differences in neutrophil and lymphocyte levels with the control. There was a significant increase in the percentage of eosinophil in the levamisole treatment alone. No significant differences were recorded in total protein, albumin, and aspartate aminotransferase and alanine aminotransferase enzymes. Levamisole treatment displayed the highest activities of glutathione peroxidase and lysozyme as well as the greatest amount of immunoglobulin. So 0.1 levamisole yielded better results in the growth, blood, and immunity parameters and can be used as a stimulant without injuring body organs.     

Compositional differences,antioxidant activity,angiotensin-converting enzyme inhibition,and sensory characteristics of kamaboko fermented in wheat,rice, brown rice,and soybean koji

Fisheries Science - Fermentation of kamaboko in koji with wheat (KW), rice (KR), brown rice (KB), or soybean (KS) was performed by simulation of tofuyo processing. Moisture and protein content...     

Meristics and Morphometrics of Golden Shiner,Notemigonus crysoleucas,Rudd, Scardinus erythrophthalmus,and Their Reciprocal F1 Hybrids

Rudd, Scardinus erythrophthalmus, a European minnow, has been hybridized with golden shiner, Notemigonus crysoleucas, in an attempt to produce sterile hybrids. If these hybrids are to be used as bait, easy means of differentiating the parental species and their hybrids is needed to ensure that no rudd are being sold. The scale pattern along the keel is the easiest and quickest way to distinguish the two species and their hybrids: the keel is raised and scaleless in the golden shiner, and it has 6-9 scales in the rudd; in hybrids, the keel is scaled, but the scales have different shapes and insertions than those in the rudd. No other phenotype can be used to positively identify these groups. No phenotype can be used to separate the reciprocal hybrids.     

Coral communities of Biscayne Bay,Florida and adjacent offshore areas: diversity,abundance, distribution,and environmental correlates

• 1. Hardbottom habitats of Biscayne Bay, a shallow lagoon adjacent to the city of Miami, Florida, USA, contain a limited number of coral species that represent a small subset of the species found at nearby offshore hardbottom and reef habitats of the Florida Reef Tract. Although the physical characteristics of this basin make it a marginal environment for coral growth, the presence of dense populations of Siderastrea radians and Porites furcata indicate that these, as well as other corals that are found at lower densities, are able to tolerate extreme and fluctuating conditions. Three factors, temperature, sedimentation, and salinity, appear to limit coral abundance, diversity, and distribution within Biscayne Bay.
• 2. Temperatures exhibit high frequencies of extreme high and low values known to cause coral stress and mortality elsewhere. Similarly, sedimentation rates are very high and sediment resuspension caused by currents, storms and boating activities commonly bury corals under sediment layers. Sediment burial was shown experimentally to influence growth and mortality of S. radians.
• 3. The salinity of Biscayne Bay is influenced by freshwater inputs from canal, sheetflow and groundwater sources that create a near‐shore environment with low mean salinity and high salinity fluctuation. Coral communities along this western margin have the lowest coral density and species richness. Chronic exposure to low salinity was shown experimentally to cause a decrease in the growth of S. radians.
• 4. The location of Biscayne Bay, downstream of a large restoration effort planned for the Everglades watershed, highlights the need to understand the relationship between the physical environment and the health of benthic communities. The data presented here provide the type of scientific information needed so that management decisions can take into account the potential impacts of human activities on the health of coral populations that are already near their tolerance limits for temperature, salinity, and sedimentation.

Copyright © 2003 John Wiley & Sons, Ltd.