关键词： 三疣梭子蟹   健康养殖模式   增养殖技术   人工繁育   河北省   十一五   海洋生物学   水产研究所  

摘要： 2005—2006年，河北省水产研究所应用海洋动物生理学、海洋生物学、水产养殖学、水产增殖学等多学科技术，对三疣梭子蟹的生物学特征、人工繁育、健康养殖模式、海洋增殖及海洋资源状况等进行了试验研究。首次大规模放流增殖三疣梭子蟹苗种，增殖放流回捕率达到5．85％，并筛选出三疣梭子蟹池塘养殖最佳效益模式。

关键词： 池塘养殖技术   曼氏无针乌贼   人工繁育   河北省   十一五   水产研究所   海洋生物学   渔业  

摘要： 2006—2007年，河北省水产研究所应用海洋动物生理学、海洋生物学、水产养殖学、水产增殖学等多学科技术，对曼氏无针乌贼的人工繁育和池塘养殖技术进行了试验研究。

关键词： 印度尼西亚   药用植物   食品药品管理局   生物多样性   清单   海洋生物   印尼   植物药  

摘要： 印度尼西亚（简称印尼）是世界上第二大生物多样性国家，如把海洋生物也计算在内的话，就会成为世界上第一大生物多样性国家。在现有的2万5千到3万种植物中，已有8000种被印尼人民所认识并使用。通过多年的实践，印尼人民在植物药的鉴定以及植物的组合、加工等方面积累了大量的经验。近年来，

关键词： 海洋科技   国家工程研究中心   中山大学   海洋生物技术   示范基地   科技产业   阳江市   党委书记  

摘要： 阳江市政府与中山大学将共建海洋科技产业示范基地 中山大学拟在广东省阳江市建设阳江（中山大学）海洋科技研究院、南海海洋生物技术国家工程研究中心阳江分中心、海洋科技产业示范基地。6月20日上午，双方在阳江签订了合作框架协议。中山大学党委书记郑德涛、副校长徐安龙，广东省海洋与渔业局局长郑伟仪，阳江市领导林少春、魏宏广、梁本佳、李日芳等出席签约仪式。

关键词： 稳定运行   海洋生物   卫星   资源开发利用   全球环境变化   海洋污染监测   环境要素   遥测参数  

摘要： 从2007年4月11日成功发射至今，海洋一号B卫星已在轨稳定运行4周年，超寿命运行1年。在东方红卫星公司研制人员的精心“呵护”下，该卫星在水温环境要素探测、海洋生物资源开发利用、海洋污染监测和防治及全球环境变化研究等领域发挥了巨大作用。目前，卫星各分系统运行稳定，各项工程遥测参数正常，卫星还将继续服务于我国的海洋遥感事业。

关键词： 章鱼   海洋生物   以色列   餐厅   天花板   热带鱼   红海   珊瑚  

摘要： 提起以色列的设计，很多人都会对红海埃拉特海岸边6米深的“红海之星”水下餐厅竖起大拇指。在这个世界上独一无二的餐厅内部，可以欣赏到窗外奇妙的珊瑚和海底鱼类，餐厅里安装着海贝天花板、水母吊灯、珊瑚桌、热带鱼凳子……恐怕真正的海洋生物也想进来一探究竟。

关键词： protein degradation   ectoprotease   coastal sediments   marine fish farming  

摘要： Anoxic and sulfidic sediments formed during intensive milkfish farming in Bolinao Bay (Lingayen Gulf Luzon, Philippines) showed concentrations of total proteinaceous matter roughly three times higher (up to 16.9 mg cm(-3)) than those of less reduced sediments. Ectoprotease activities in these coastal sediments suggested an inhibition of enzymatic recycling of proteins by sulfide. Sodium sulfide proved capable of inhibiting protease activity produced by a bacterial isolate from a sulfidic sediment site (Ki = 20 mM Na2S center dot 9H(2)O). Reoxidation and removal of H2S from sulfidic sediments, however, proved inadequate to recover proteolytic activity. Hence, H2S formed during organic matter mineralization via bacterial sulfate respiration may have initiated an irreversible inhibition of the enzymatic degradation of proteinaceous matter from fish farming. Ectoprotease activity was positively correlated (r = .93) with redox potential values. Lowest proteolytic activities were found in strongly reduced sediments, that were predominantly fine grained (very fine sand and silt) and sulfidic at the same time. Low ectoprotease activity in these sulfide-rich sediments can be interpreted as a kind of negative feedback mechanism that would mitigate the immediate recycling of excessive amounts of feed borne protein-rich deposits. Proteins may be further protected from degradation by selective particle adsorption in the finest grained deposits of fish farming waste.

关键词： Vibrios   Vibriosis   Glycosphingolipid(s)   GM3/GM4 fish intestinal receptor   TLC overlay assay   Mariculture  

摘要： Vibrios are highly motile, facultatively anaerobic bacteria that are ubiquitous in aquatic environments and part of the normal intestinal microflora of healthy fish, but some species can cause vibriosis. The adherence of vibrios to host fish intestines is a significant event not only for their survival and growth, but also in terms of pathogenicity. However, the molecular mechanism underlying the adhesion of vibrios to the intestinal tract of fish is not fully understood. We report here the identification of intestinal glycosphingolipid (GSL) receptors to which pathogenic vibrios attach in typical mariculture fish. Thin-layer chromatography overlay assays using five species of (35)S-labeled vibrios and intestinal glycosphingolipids of seven species of mariculture fish revealed that all of the fish tested possessed GM3 (NeuAc alpha 2-3Gal beta 1-4Glc beta 1-1'Cer) and/or GM4 (NeuAc alpha 2-3Gal beta 1-1'Cer) as major acidic intestinal GSLs and that all of the vibrios tested specifically adhered to GM3 and/or GM4. Our results demonstrate that these GSLs were able to function as a receptor for the various vibrios tested. Analysis of the relationship between sugar structure and receptor activity for vibrios revealed that 'NeuAc alpha 2-3Gal beta 1-' is required at the non-reducing end of glycosphingolipids for the bacteria to attach.

关键词： Constructed wetland   Mariculture effluent   Aquaculture wastewater   Hydraulic residence time   Mangroves  

摘要： This study established wetland microcosms that were either unplanted or planted in monoculture with native mangrove species in Taiwan (Avicennia marina, Rhizophora stylosa, and Lumnitzera racemosa) for the purpose of receiving high-salinity mariculture effluents;additionally, the microcosms operated at different hydraulic retention times (HRTs). Plant growth and the performance of the microcosms with respect to pollutant removal were investigated. The results showed that seedlings of all three mangrove species survived and grew sufficiently well under continuous flooding. The presence of mangroves consistently improved SS, BOD5, and TP removal, particularly under short HRT conditions. The mangrove microcosms removed pollutants from the mariculture effluents with efficiencies of 5.7-27.1% (SS), 4.9-36.3% (BOD5), 18.7-29.9% (TP), 21.2-49.8% (NH4-N), and 5.4-37.7% (NOx-N). A. marina and L racemosa were more tolerant of continuous flooding than R. stylosa. However, no species displayed consistently superior performance in decreasing all pollutant-related parameters investigated. For all pollutants, microcosms operating at a 2-d HRT exhibited a higher removal efficiency than those operating at a 0.5-d HRT. (C) 2011 Elsevier Ltd. All rights reserved.