Smith Craig R, De Leo Fabio C, Bernardino Angelo F, Sweetman Andrew K, Arbizu Pedro Martinez
Department of Oceanography, University of Hawaii, 1000 Pope Road, Honolulu, HI 96822, USA.
Trends Ecol Evol. 2008 Sep;23(9):518-28. doi: 10.1016/j.tree.2008.05.002. Epub 2008 Jun 26.
The abyssal seafloor covers more than 50% of the Earth and is postulated to be both a reservoir of biodiversity and a source of important ecosystem services. We show that ecosystem structure and function in the abyss are strongly modulated by the quantity and quality of detrital food material sinking from the surface ocean. Climate change and human activities (e.g. successful ocean fertilization) will alter patterns of sinking food flux to the deep ocean, substantially impacting the structure, function and biodiversity of abyssal ecosystems. Abyssal ecosystem response thus must be considered in assessments of the environmental impacts of global warming and ocean fertilization.
深海海底覆盖了地球表面超过50%的区域,据推测它既是生物多样性的储存库,也是重要生态系统服务的来源。我们发现,深海中的生态系统结构和功能受到从表层海洋沉降下来的碎屑食物物质的数量和质量的强烈调节。气候变化和人类活动(如成功的海洋施肥)将改变下沉到深海的食物通量模式,从而对深海生态系统的结构、功能和生物多样性产生重大影响。因此,在评估全球变暖和海洋施肥对环境的影响时,必须考虑深海生态系统的响应。