气候变化领域集成服务门户(CCPortal): Global mesozooplankton communities show lower connectivity in deep oceanic layers

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DOI	10.1111/mec.17286
	Global mesozooplankton communities show lower connectivity in deep oceanic layers
	Canals, Oriol; Corell, Jon; Villarino, Ernesto; Chust, Guillem; Aylagas, Eva; Mendibil, Inaki; Michell, Craig T.; Gonzalez-Gordillo, Juan Ignacio; Irigoien, Xabier; Rodriguez-Ezpeleta, Naiara
发表日期	2024
ISSN	0962-1083
EISSN	1365-294X
英文摘要	Mesozooplankton is a key component of the ocean, regulating global processes such as the carbon pump, and ensuring energy transfer from lower to higher trophic levels. Yet, knowledge on mesozooplankton diversity, distribution and connectivity at global scale is still fragmented. To fill this gap, we applied DNA metabarcoding to mesozooplankton samples collected during the Malaspina-2010 circumnavigation expedition across the Atlantic, Indian and Pacific oceans from the surface to bathypelagic depths. We highlight the still scarce knowledge on global mesozooplankton diversity and identify the Indian Ocean and the deep sea as the oceanic regions with the highest proportion of hidden diversity. We report no consistent alpha-diversity patterns for mesozooplankton at a global scale, neither across vertical nor horizontal gradients. However, beta-diversity analysis suggests horizontal and vertical structuring of mesozooplankton communities mostly attributed to turnover and reveals an increase in mesozooplankton beta-diversity with depth, indicating reduced connectivity at deeper layers. Additionally, we identify a water mass type-mediated structuring of mesozooplankton bathypelagic communities instead of an oceanic basin-mediated as observed at upper layers. This suggests limited dispersal at deep ocean layers, most likely due to weaker currents and lower mixing of water mass types, thus reinforcing the importance of oceanic currents and barriers to dispersal in shaping global plankton communities.
英文关键词	connectivity; deep ocean; dispersal; environmental selection; oceanic currents; zooplankton
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号	WOS:001152047800001
来源期刊	MOLECULAR ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295847
作者单位	AZTI; King Abdullah University of Science & Technology; Universidad de Cadiz; King Abdullah University of Science & Technology
推荐引用方式 GB/T 7714	Canals, Oriol,Corell, Jon,Villarino, Ernesto,et al. Global mesozooplankton communities show lower connectivity in deep oceanic layers[J],2024.
APA	Canals, Oriol.,Corell, Jon.,Villarino, Ernesto.,Chust, Guillem.,Aylagas, Eva.,...&Rodriguez-Ezpeleta, Naiara.(2024).Global mesozooplankton communities show lower connectivity in deep oceanic layers.MOLECULAR ECOLOGY.
MLA	Canals, Oriol,et al."Global mesozooplankton communities show lower connectivity in deep oceanic layers".MOLECULAR ECOLOGY (2024).