Universität zu Köln

Xu, Zhimeng, Li, Yifan, Lu, Yanhong, Li, Yingdong, Yuan, Zhongwei, Dai, Minhan ORCID: 0000-0003-0550-0701 and Liu, Hongbin (2020). Impacts of the Zhe-Min Coastal Current on the biogeographic pattern of microbial eukaryotic communities. Prog. Oceanogr., 183. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0079-6611

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Abstract

One interesting question in the study of marine microbial ecology is how ocean currents affect the geographic distributions of microorganisms. The Zhe-Min Coastal Current (ZMCC) is strong in winter and could influence the plankton communities in Hong Kong coastal waters by bringing species from far north. In this study, we investigated the spatial distribution of microbial eukaryotic communities (MEC) in the ZMCC and evaluated the relative contribution of environmental and spatial factors on the variations of MEC. The results showed that diverse taxa of diatoms (Bacillariophyceae) and Dinophyceae (Dinoflagellata) dominated the sequences in all samples. MEC compositions in the Hong Kong coastal waters were closer to the communities in the ZMCC than other adjacent areas. Abundant and rare taxa exhibited a similar geographic pattern of distribution. Environmental factors alone explained 14.1% and 27.6% of the variations in the entire and abundant communities, respectively, which were higher than pure spatial factors (8.3% and 19.5%, respectively). The lower importance of spatial factors (dispersal limitation) might be explained by the passive dispersal favored by current transportation and was further supported by the high immigration rate computed in the neutral community model (NCM). High fitness to the NCM (R-2 = 0.74) indicated the predominant role of neutral process in shaping the MEC. The large proportion of unexplained variations in rare taxa suggested the importance of other potential factors, especially biotic interactions. Our study demonstrates the influences of coastal current on local and regional structures of MEC.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Xu, Zhimeng UNSPECIFIED UNSPECIFIED UNSPECIFIED Li, Yifan UNSPECIFIED UNSPECIFIED UNSPECIFIED Lu, Yanhong UNSPECIFIED UNSPECIFIED UNSPECIFIED Li, Yingdong UNSPECIFIED UNSPECIFIED UNSPECIFIED Yuan, Zhongwei UNSPECIFIED UNSPECIFIED UNSPECIFIED Dai, Minhan UNSPECIFIED orcid.org/0000-0003-0550-0701 UNSPECIFIED Liu, Hongbin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-338669
DOI:	10.1016/j.pocean.2020.102309
Journal or Publication Title:	Prog. Oceanogr.
Volume:	183
Date:	2020
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	0079-6611
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PEARL RIVER ESTUARY; SOUTH CHINA SEA; PHYTOPLANKTON COMMUNITY; ASSEMBLY PROCESSES; NEUTRAL PROCESSES; TAIWAN BANK; YELLOW SEA; DIVERSITY; WATERS; DISPERSAL Multiple languages Oceanography Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/33866