Web本文综述了海山浮游生态学研究的现状。海山是大洋中常见的地形单元, 在有的海山附近鱼类和底栖生物的生物量比周围大洋中要多, 针对这些鱼类和底栖生物的饵料来源提出了三种假说, 第一种假说认为海山区特殊的物理环境导致初级生产力较高(经典假说), 第二种假说认为海山区的饵料不是本地 ... WebSeine fishing (or seine-haul fishing; / s eɪ n / SAYN) is a method of fishing that employs a surrounding net, called a seine, that hangs vertically in the water with its bottom edge held down by weights and its top edge buoyed …

Calliostoma lithocolletum Dautzenberg, 1925 - Marine Species

WebA seamount is regarded as a geological elevation that reaches a minimum of 1,000 metres in height and can consist of very different physical, geological and chemical pro- perties. Therefore, seamounts can only exist where there are sea beds more than one kilo- metre deep, or, which is one and the same thing, over 60%–62% of the land surface 1 WebSeine Seamount: IHO-IOC GEBCO Gazetteer of Undersea Feature Names : French: Banc de la Seine: US BGN Advisory Committee on Undersea Features (ACUF) Russian: Gora Sen: US … buy out thesaurus

Seamount Catalog -- Home Page - EarthRef.org

WebSeamount is a tall, conically shaped seamount located in the subtropical NE Atlantic northeast of the island of Madeira (Fig. 1a). It rises sharply from abyssal water depths … WebDec 1, 2009 · Seine is a cone-shape seamount with a single broad summit reaching ∼150 m depth in the euphotic zone, whereas Sedlo is a chain seamount composed of three peaks separated by shoulders with a depth of ∼760 m at its shallower peak. WebSeamounts are underwater mountains which typically rise rather steeply at least several hundred meters above the deep-sea floor. These geological features interrupt water flow … ceo of microsoft steps down