The benthos: the ocean’s last boundary?

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Scientia Marina Pub Date : 2020-12-11 DOI:10.3989/scimar.05091.24a
J. Gili, B. Vendrell-Simón, W. Arntz, F. Sabater, J. Ros
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引用次数: 1

Abstract

Benthic communities depend on receiving much of their food from the water column. While sinking, particles are transformed in a discontinuous process and are temporally retained in transitional physical structures, which act as boundaries and contribute to their further transformation. Motile organisms are well-acquainted with boundaries. The number, width and placement of boundaries are related to the degree of particle degradation or transformation. Progressively deepening within each boundary, particles are degraded according to their residence time in the discontinuity and the activity of the organisms temporarily inhabiting that boundary. Finally, particles reach the seafloor and represent the main food source for benthic organisms; the quality and quantity of this food have a strong impact on the development of benthic communities. However, benthic communities not only play the role of a sink of matter: they act as an active boundary comparable to other oceanic boundaries, in accordance with the boundary concept proposed by the ecologist Ramon Margalef.
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底栖动物:海洋的最后边界?
底栖生物群落依靠从水柱中获取大部分食物。在下沉的过程中,粒子在一个不连续的过程中转化,并暂时保留在过渡的物理结构中,这些物理结构充当边界,有助于它们的进一步转化。活动的生物对边界非常熟悉。边界的数目、宽度和位置与粒子降解或转变的程度有关。颗粒在每个边界内逐渐加深,根据它们在不连续中的停留时间和暂时居住在该边界上的生物的活动而降解。最后,颗粒到达海底,是底栖生物的主要食物来源;这种食物的质量和数量对底栖生物群落的发展有很大的影响。然而,根据生态学家Ramon Margalef提出的边界概念,底栖生物群落不仅扮演着物质储存库的角色:它们还扮演着与其他海洋边界相当的活跃边界。
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来源期刊
Scientia Marina
Scientia Marina 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
21
审稿时长
6-12 weeks
期刊介绍: Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.
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