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1.
《Journal of Natural History》2012,46(23-24):3077-3089
The reefs of Rodrigues were some of the few reef areas in the Indian Ocean to escape the mass coral bleaching event of 1997–1998. However, during the last 2 weeks of February 2002 Rodrigues experienced sea-water temperatures over 30°C, clear skies and calm seas. Rapid assessments of the degree of coral bleaching and coral mortality were carried out at 22 sites around the coast of Rodrigues during March 2002. The surveys showed that the bleaching event in Rodrigues was not widespread, occurring at less than one-third of the sites surveyed and that coral mortality was restricted to sites in the north and west of the island. Where mortality did occur, it was severe, affecting up to 75% of corals at some sites. Coral species most vulnerable were Acropora cytherea and Acropora abrotanoides, which suffered up to 100% mortality. These colonies were still standing and had been very recently overgrown with turf algae. At present the reefs around Rodrigues are in good health, however, they are being impacted by over-fishing and sedimentation, and proposed developments have the potential to cause further damage to the reefs. It is likely that stressed corals will recover from bleaching events more slowly. It is therefore important that the coral reefs in Rodrigues are adequately protected from human impacts in order to increase their chances of surviving future bleaching events.  相似文献   
2.
《Journal of Natural History》2012,46(14):1661-1670
A new species of Pseudobranchiomma Jones, 1962 is described from a collection of polychaetes associated with stony coral on the coast of São Paulo State, Brazil. Pseudobranchiomma minima sp. n. differs from the type species P. emersoni Jones and from most other Pseudobranchiomma species in lacking serrations along the outer surface of the crown radioles. Only one other recorded fairly small species, Pseudobranchiomma punctata (Treadwell, 1906, new combination), lacks such serrations and is redescribed here. The two species differ mainly in the configurations of the collars and chaetae. This genus has characters more in common with Bispira than with Branchiomma.  相似文献   
3.
The solitary, free-living coralDiaseris distorta (Michelin) (Fungiidae, Scleractinia) reproduces asexually by fragmentation along radially oriented slits. Localized skeletal dissolution, which can be recognized as white, opaque and chalky lines along the thecal wall between segments, ultimately results in autotomy. We suggest that the skeletal dissolution which dissolves the weakest part of the corallum for easy breakage, is a species-specific character.  相似文献   
4.
目的:建立高效液相色谱法测定二十五味珊瑚丸中西红花苷含量的方法。方法:采用HPLC法,色谱柱:DionexC18柱(250ram×4.60mm,5um);流动相为甲醇-水(52:48),流速为0.8ml/min,检测波长为440nm,柱温为250C;进样量10μl;用标准曲线法定量,测定二十五味珊瑚丸中西红花苷含量。结果:西红花苷I在33μg-330μg范围内与峰面积呈良好的线性关系(r=0.9999),西红花苷Ⅱ在62μg-310μg范围内与峰面积呈良好的线性关系(r=0.9998),平均回收率为103.73%,RSD为1.68%(n=6)。结论:本方法操作简单、重现性好,可用于测定二十五味珊瑚丸中西红花苷I&Ⅱ含量。  相似文献   
5.
本文通过分析《蝇王》与圣经、希腊神话、《珊瑚岛》和战争的互文,得出小说背后的深刻意义,更了解到作者宣传人性本恶的观点、对所谓英国文明的讽刺及对战争的控诉。  相似文献   
6.
Indomolgus humesi (Poecilostomatoida: Lichomolgidae) is the fifth member of the genus Indomolgus Humes and Ho, 1966. I. humesi was collected from corals while the other four members are associated with sea anemones. It is perhaps significant that all the known species of Indomolgus were collected from the tropical parts of the Indian Ocean, namely Madagascar and India.

I. humesi is closest to I. diversus Humes and Ho but can be easily distinguished by the relatively broad caudal rami of the male. The armature of the second segment of the endopod of leg 4 is I-2, which is different from that of all the other known species.  相似文献   
7.
《Journal of Natural History》2012,46(20):1705-1717
The absence of coral‐inhabiting barnacles in the eastern Pacific has been generally accepted. Examination of corals collected on seven islands of French Polynesia, presently found in the collection of the Muséum national d'Histoire naturelle, Paris, revealed the presence of four known species of coral‐inhabiting barnacles, Cantellius tredecimus, Trevathana dentata, T. paulayi, and Neotrevathana elongata, and two new species, Trevathana tureiae and Savignium tuamotum. The present report extends the distribution of the pyrgomatines further east and south of their previously documented distribution.  相似文献   
8.
为探索救心菜Coral dealbatus、明月草Gynura divaricata(Linn.)DC.和铜钱草Hydrocotyle chinensis(Dunn)Craib作为特色蔬菜的开发价值,采用超声波辅助醇溶液法提取3种药食兼用蔬菜的总黄酮含量,并评价其粗提液体外抗氧化能力。结果表明,在救心菜、明月草和铜钱草各自的较优提取条件下,其总黄酮类物质的最高含量分别为2.14%、1.27%和5.37%,以铜钱草总黄酮含量最高。3种菜粗提液对DPPH·的清除能力以救心菜最高,总还原力为VC > 救心菜 > 铜钱草 > 明月草。救心菜在推广种植、市场开发方面的优势更好,总黄酮含量也相对较高,是药食兼用的理想保健品。明月草和铜钱草总黄酮含量虽高,但其抗氧化活性不好,开发成为药食兼用的理想保健品的价值相对较低。  相似文献   
9.
目的:建立高效液相色谱法测定二十五味珊瑚丸中西红花苷含量的方法。方法:采用HPLC法,色谱柱:Dionex C18柱(250mm×4.60mm,5um);流动相为甲醇-水(52:48),流速为0.8ml/min,检测波长为440nm,柱温为25℃;进样量10μl;用标准曲线法定量,测定二十五味珊瑚丸中西红花苷含量。结果:西红花苷Ⅰ在33μg~330μg范围内与峰面积呈良好的线性关系(r=0.9999),西红花苷Ⅱ在62μg~310μg范围内与峰面积呈良好的线性关系(r=0.9998),平均回收率为103.73%,RSD为1.68%(n=6)。结论:本方法操作简单、重现性好,可用于测定二十五味珊瑚丸中西红花苷Ⅰ&Ⅱ含量。  相似文献   
10.
我国南海的离岸岛礁以珊瑚礁生境为主。珊瑚礁在提升海洋生态资源和维护我国海洋国土权益上发挥了至关重要的作用。近年来,在全球气候变化以及人类活动的影响下,南海珊瑚礁生境和资源严重退化,威胁着渔业资源、海洋环境以及国土安全。现代化的海洋牧场被认为是实现南海资源可持续发展战略的新型海洋生物资源开发模式。珊瑚礁生境与资源的修复则是热带岛礁型海洋牧场建设的基础和关键。基于此,本文整理了珊瑚礁生境与资源修复的技术方法,详细介绍了珊瑚礁生境构建框架生物造礁石珊瑚的有性繁殖、断枝培育、底播移植等技术方法以及珊瑚礁其他特色生物资源人工放流技术,并提出了在珊瑚礁生境与资源修复中所面临的问题及相应对策。  相似文献   
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