...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine ecology >Surficial Hydrocarbon Seep Infauna from the Blake Ridge (Atlantic Ocean, 2150 m) and the Gulf of Mexico (690-2240 m)
【24h】

Surficial Hydrocarbon Seep Infauna from the Blake Ridge (Atlantic Ocean, 2150 m) and the Gulf of Mexico (690-2240 m)

机译：来自布雷克海岭（大西洋，2150 m）和墨西哥湾（690-2240 m）的表面烃渗流

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Infauna, including foraminifera and metazoans, were enumerated and identified from five types of seep habitats and two adjacent non-seep habitats. Collections were made with the deep submergence research vessel 'Alvin' from three areas of active seepage in the Gulf of Mexico (Alaminos Canyon [2220 m], Atwater Canyon [1930 m], and Green Canyon lease block 272 [700 m]) and on the Blake Ridge Diapir [2250 m], which is located off the southeastern coast of the United States. The seep habitats sampled included four types of microbial mats (Beggiatoa, Thioploca, thin and thick Arcobacter) and the periphery of a large mussel bed. Sediments under large rhizopod protists, xenophyophores, were sampled adjacent to the mussel bed periphery. A non-seep site, which was > 1 km away from active seeps, was also sampled for comparison. Densities of most taxa were higher in the Gulf of Mexico seeps than in Blake Ridge samples, largely because densities in the thick microbial mats of Blake Ridge were significantly lower. Diversity was higher in the Thioploca mats compared to other microbial-mat types. Within an ocean basin (i.e., Atlantic, Gulf of Mexico) we did not observe significant differences in meiofaunal or macrofaunal composition in Beggiatoa versus Thioploca mats or thin versus thick Arcobacter mats. Foraminifera represented up to 16% of the seep community, a proportion that is comparable to their contribution at adjacent non-seep communities. In general, the observed densities and taxonomic composition of seep sites at the genus level was consistent with previous observations from seeps (e.g., the foraminifers Bolivina and Fursenkoina, the dorvilleid polychaete Ophryotrocha).
机译：从五种类型的渗水生境和两个相邻的非深层生境中列举并鉴定出有孔虫，包括有孔虫和后生动物。深度浸没型研究船“ Alvin”从墨西哥湾的三个活跃渗漏区域进行收集（Alaminos峡谷[2220 m]，Atwater峡谷[1930 m]和Green Canyon租赁区272 [700 m]）和位于美国东南沿海的布雷克山脊Diapir [2250 m]。采样的渗水生境包括四种类型的微生物垫（Beggiatoa，Thioploca，稀薄和浓厚的杆状杆菌）和大型贻贝床的外围。在贻贝床外围附近取样了大型根茎生物，异生植物下的沉积物。还对距离活跃渗漏> 1 km的非倾斜站点进行了采样以进行比较。墨西哥湾渗水中大多数分类单元的密度都比布雷克里奇样品高，这主要是因为布雷克里奇厚厚的微生物垫中的密度明显较低。与其他微生物垫相比，Thioploca垫的多样性更高。在一个海洋盆地（即大西洋，墨西哥湾）中，我们没有观察到贝格贾托亚垫层与硫霉菌垫或薄对厚的杆状杆菌垫的牛代或大型动物组成的显着差异。有孔虫最多占渗水群落的16％，这一比例与其在邻近非渗水群落中的贡献相当。通常，在属水平上观察到的渗透位点的密度和分类学组成与先前从渗透物中观察到的一致（例如，有孔虫Bolivina和Fursenkoina，多维尔多毛多毛phrOphryotrocha）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号