globalchange  > 气候变化与战略
DOI: 10.1016/j.ecss.2019.106574
论文题名:
Phytoplankton size changes and diversity loss in the southwestern Mediterranean Sea in relation to long-term hydrographic variability
作者: Ramírez-Romero E.; Molinero J.C.; Sommer U.; Salhi N.; Kéfi - Daly Yahia O.; Daly Yahia M.N.
刊名: Estuarine, Coastal and Shelf Science
ISSN: 2727714
出版年: 2020
卷: 235
语种: 英语
英文关键词: Diversity loss ; Nanophytoplankton ; Ocean warming ; Phytoplankton diversity ; Size structural changes ; Southwestern mediterranean
Scopus关键词: body size ; dominance ; food web ; global warming ; hydrographic survey ; nanoplankton ; phytoplankton ; sea surface temperature ; size structure ; species diversity ; Bay of Tunis ; Mediterranean Sea ; Tunis [Tunisia] ; Tunisia ; Bacillariophyta ; Cyanobacteria
英文摘要: Structural changes in plankton primary producers have large implications for food web dynamics, energy fluxes and the vertical export of biogenic particulate carbon. Here we examine phytoplankton data spanning the period 1993–2008 from the Bay of Tunis, southwestern Mediterranean Sea, in relation to long term hydroclimate variability. We show a conspicuous shift in the structure of the phytoplankton community characterized by an increase of small-sized species and diversity loss, revealing a dominance of smaller blooming diatoms and cyanobacteria. Such changes were concurrent with marked modifications in hydroclimatic patterns experienced in the Bay of Tunis consisting of a shift towards enhanced winter precipitation together with rising temperatures. This novel study shows an overall rise in the proportion of small phytoplankton cells and a decreasing trend in phytoplankton diversity in the southern Mediterranean area. These findings warn of a potential decline of trophic efficiency and lesser food web stability resulting from mean size reduction and the diversity loss. © 2020 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158420
Appears in Collections:气候变化与战略

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作者单位: Instituto Mediterráneo de Estudios Avanzados, IMEDEA (CSIC-UIB), C/Miquel Marqués 21, Esporles, Illes Balears 07190, Spain; Institut de Recherche pour le Développement, MARBEC, IRD/CNRS/IFREMER/UMSète Cedex, France; GEOMAR Helmholtz Center for Ocean Research, Kiel, Germany, Marine Ecology/Food Webs, Duesternbrooker Weg 20, Kiel, D-24105, Germany; Research Group on Oceanography and Plankton Ecology, Tunisian National Institute of Agronomy (INAT), 43 Avenue Charles Nicolle, Tunis, 1082, Tunisia; IRESA- Carthage University, Tunis El Manar UniversityLR18ES41, Tunisia; Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, PO Box 2713, Doha, Qatar

Recommended Citation:
Ramírez-Romero E.,Molinero J.C.,Sommer U.,et al. Phytoplankton size changes and diversity loss in the southwestern Mediterranean Sea in relation to long-term hydrographic variability[J]. Estuarine, Coastal and Shelf Science,2020-01-01,235
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