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学科主题: 物理化学
题名: Diversity and chemical ecology of shallow water sponge communities in the Chinese Yellow Sea :Status and perspectives
作者: DorteJanussen ;  Zhang W(张卫) ;  DanielaHenke
会议名称: 7thInternational Sponge Symposium 2006-Biotechnology and Pharmacology
会议日期: 2006-5-7
出版日期: 2006-05-07
会议地点: 巴西
其他题名: 中国黄海浅水地区海绵群落的多样性及化学生态现状及展望
通讯作者: 张卫
部门归属: 十八室
主办者: 巴西
摘要: With a large total area and climatic range, the Chinese oceans are among the richest in the World in terms of biodiversity .this is true not least to the sponges. The number of sponge taxa. particularly form South China Sea .is estimated to be exceptionally high with over registered 1500 species and many more waiting to be described ,some of which contain valuable natural products .However ,the industrial use of these sponges id severely hampered by the lack of knowledge on their taxonomy and ecology .Most Chinese sponges described so far were collceted in the tropical South China Sea and East China Sea .But in the Yellow Sea and Bohai sea ,less than 10 sponge species have so far been recorded, most of which are only preliminarly determined, biochemical investigations have been performed on 2 species .All together ,the sponge fauna of the North-Eastern China Seas is heavily under-explored .Preliminary investigations done by snorkeling at different localities in and around Dailian (Chinese Yellow Sea )revealed that the biotopes are strongly impacted by the wide-spread aquaculture ,especially of brown algae which dominate the underwater landscape at shallow depths. However, the diversity of sessile organisms (sponges and ascidians) is comparably high ,and it is possible to observe a distinct sponge zonation even within the upper 10 m .This is especially clear in the probably less eutrophic Dalian Bay where the intertidal community is characterized by 3 spp of demosponges (e.g the very common Hymeniacidon perleve and Reniochalina n sp. ).The shallow subtidal community is characterized by 4 distinct spp ,which appear to be especially common below 5 m depth, Diversity of benthic fauna increases with depth ,a tendency which we expect to hold true below 10 m ,where algae populations cease, Both Chinese Yellow and Bohai Sea represent an oceanic area with great temperature variability (between 37℃and -17℃,summer and winter ,respectively ).We hypothesize that environmental stress on the sponges is high ,and sponges form this region are expected to biosynthesize unique bioactive metabolites, although the general chemical diversity is probably lower than in tropical seas. To test this working hypothesis , our future investigations include:1.Extensive mapping of sponge distribution and diversity at chosen locations in the Yellow and Bohai Seas by SCUBA diving ,including a detailed record of the sponge species and description of the expected new taxa. Definition of key sponge associations for different environmental settings and comparison with other known faunas (e.g form Korea ).2.Investigation of sponge-associated infauna ,especially the meio-infauna.3.Analysis of bacteria associated with sponge species by both cultivation-independent molecular methods and cultivation –based methods.4.Bioactivity screening to elucidate the biochemical diversity of the sponge.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/112314
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
DorteJanussen,Zhang W,DanielaHenke. Diversity and chemical ecology of shallow water sponge communities in the Chinese Yellow Sea :Status and perspectives[C]. 见:7thInternational Sponge Symposium 2006-Biotechnology and Pharmacology. 巴西. 2006-5-7.
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