Abundance and size distribution of transparent exopolymer particles (TEP) in a coccolithophorid bloom in the northern Bay of Biscay

被引：40

作者：

Harlay, Jerome ^{[1
]}

De Bodt, Caroline ^{[1
]}

Engel, Anja ^{[2
]}

Jansen, Sandra ^{[2
]}

d'Hoop, Quentin ^{[1
]}

Piontek, Judith ^{[2
]}

Van Oostende, Nicolas ^{[3
]}

Groom, Steve ^{[4
]}

Sabbe, Koen ^{[3
]}

Chou, Lei ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Lab Oceanog Chim & Geochim Eaux, B-1050 Brussels, Belgium

[2] AWI, HGF Young Investigators Grp, D-27570 Bremerhaven, Germany

[3] Univ Ghent, B-9000 Ghent, Belgium

[4] Plymouth Marine Lab, Remote Sensing Grp, Plymouth PL1 3DH, Devon, England

来源：

DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS | 2009年 / 56卷 / 08期

关键词：

TEP; Carbon; Coccolithophores; North Atlantic Ocean; C-N RATIO; EMILIANIA-HUXLEYI; PHYTOPLANKTON; MESOCOSM; CARBON; ATLANTIC; AGGREGATION; OCEAN; SEA; CHLOROPHYLL;

D O I：

10.1016/j.dsr.2009.01.014

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

The distribution of transparent exopolymer particles (TEP) was investigated during a coccolithophorid bloom in the northern Bay of Biscay (North Atlantic Ocean) in early June 2006. MODIS chlorophyll-a (Chl-a) and reflectance images before and during the cruise were used to localize areas of important biological activity and high reflectance (HR). TEP profiles along the continental margin, determined using microscopic (TEPmicro) and colorimetric (TEPcolor) methods, showed abundant (6.1 x 10(6)-4.4 x 10(7) L-1) and relatively small (0.5-20 mu m) particles, leading to a low total volume fraction (0.05-2.2 ppm) of TEPmicro and similar vertical profiles of TEPcolor Estimates of carbon content in TEP (TEP-C) derived from the microscopic approach yielded surface concentration of 1.50 mu mol CL-1. The contribution of TEP-C to particulate organic carbon (POC) was estimated to be 12% (molar C ratio) during this survey. Our results suggest that TEP formation is a probable first step to rapid and efficient export of C during declining coccolithophorid blooms. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1251 / 1265

页数：15