caa a22 4500 445893877 CHVBK 20180317145625.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10750-011-0604-9 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0604-9 Spatial variation in taxonomic distinctness of ciliated protozoan communities at genus-level resolution and relationships to marine water quality in Jiaozhou Bay, northern China [Elektronische Daten] [Henglong Xu, Yong Jiang, Khaled Al-Rasheid, Weibo Song, Alan Warren] Taxonomic distinctness of ciliated protozoan communities at genus-level resolution was studied over a 12-month period (June 2007-May 2008) in Jiaozhou Bay, northern China. Samples were collected biweekly from three different depths at each of five sites. A range of physico-chemical parameters were also measured in order to determine water quality. Multivariate and univariate analyses showed that (1) spatial patterns of ciliated protozoan communities were significantly different among the five sampling sites (P<0.05); (2) there were no significant differences among the three depths at each site (P>0.05); (3) the taxonomic patterns of ciliate communities at genus-level resolution were significantly correlated with the spatial variation of environmental variables, in particular nitrate nitrogen (NO3-N), sum of NO3-N and nitrite nitrogen (NOn-N), and soluble reactive phosphate (SRP); (4) the Margalef's index did not show a significant correlation with chemical parameters although it was higher for the less eutrophic than the more eutrophic sites (P>0.05); (5) the average taxonomic distinctness (Δ+) and variation in taxonomic distinctness (Λ+) of the ciliate communities at genus-level resolution were significantly negatively correlated with the combination of NOn-N and SRP; (6) the paired taxonomic biodiversity indices (Δ+ and Λ+) showed a clear decreasing trend of departure from the expected taxonomic breadth in response to water quality. These results suggest that spatial patterns and taxonomic distinctness (especially the paired Δ+ and Λ+) of ciliated protozoan communities at genus-level resolution can be used as potential indicators for assessing marine water quality while minimizing costs in terms of the time and resources needed for sample analysis. Springer Science+Business Media B.V., 2011 Ciliated protozoa nationallicence Eutrophication nationallicence Marine ecosystems nationallicence Microbial ecology nationallicence Taxonomic distinctness nationallicence Xu Henglong Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, 266003, Qingdao, China aut Jiang Yong Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, 266003, Qingdao, China aut Al-Rasheid Khaled Zoology Department, King Saud University, PO Box 2455, 11451, Riyadh, Saudi Arabia aut Song Weibo Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, 266003, Qingdao, China aut Warren Alan Department of Zoology, Natural History Museum, SW7 5BD, London, UK aut Hydrobiologia Springer Netherlands 665/1(2011-05-01), 67-78 0018-8158 665:1<67 2011 665 10750 https://doi.org/10.1007/s10750-011-0604-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0604-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Henglong Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, 266003, Qingdao, China aut NATIONALLICENCE 700 1- Jiang Yong Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, 266003, Qingdao, China aut NATIONALLICENCE 700 1- Al-Rasheid Khaled Zoology Department, King Saud University, PO Box 2455, 11451, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Song Weibo Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, 266003, Qingdao, China aut NATIONALLICENCE 700 1- Warren Alan Department of Zoology, Natural History Museum, SW7 5BD, London, UK aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 665/1(2011-05-01), 67-78 0018-8158 665:1<67 2011 665 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer