首页 | 本学科首页   官方微博 | 高级检索  
   检索      


The influence of Phaeocystis globosa on microscale spatial patterns of chlorophyll a and bulk-phase seawater viscosity
Authors:L Seuront  C Lacheze  M J Doubell  J R Seymour  V Van Dongen-Vogels  K Newton  A C Alderkamp  J G Mitchell
Institution:(1) CNRS FRE 2816 ELICO, Station Marine de Wimereux, University of Sciences and Technologies of Lille-Lille 1, 28 avenue Foch, 62930 Wimereux, France;(2) School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide, SA, 5001, Australia;(3) Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachussets Avenue, Cambridge, MA 02139-4307, USA;(4) Marine Biology Laboratory, Catholic University of Louvain, Batiment Kellner, 3 Place Croix du Sud, Louvain-La-Neuve, 1348, Belgium;(5) Department of Marine Biology, University of Groningen, PO Box 14, Haren, 9750AA, The Netherlands
Abstract:A two-dimensional microscale (5 cm resolution) sampler was used over the course of a phytoplankton spring bloom dominated by Phaeocystis globosa to investigate the structural properties of chlorophyll a and seawater excess viscosity distributions. The microscale distribution patterns of chlorophyll a and excess viscosity were never uniform nor random. Instead they exhibited different types and levels of aggregated spatial patterns that were related to the dynamics of the bloom. The chlorophyll a and seawater viscosity correlation patterns were also controlled by the dynamics of the bloom with positive and negative correlations before and after the formation of foam in the turbulent surf zone. The ecological relevance and implications of the observed patchiness and biologically induced increase in seawater viscosity are discussed and the combination of the enlarged colonial form and mucus secretion is suggested as a competitive advantage of P. globosa in highly turbulent environments where this species flourishes.
Keywords:Eastern English Channel  Patchiness            Phaeocystic globosa            Plankton rheology  Turbulence
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号