A FRAMEWORK FOR EXPLORING RELATIONSHIPSBETWEEN ONLINE COMMUNITY CHARACTERISTICSAND REGULATION PRINCIPLES

Emerging needs of society from forest ecosystems: towards the opportunities and dilemmas in forest managerial economics and accounting

Eleonore ten Thij ; Justin de Nooijer

Others  :  http://CEUR-WS.org/Vol-245/paper2.pdf
PID  :  786

来源: CEUR

【 摘 要 】

Oceanic protist grazing at mesopelagic and bathypelagic depths, and their subsequent effects on trophic links between eukaryotes and prokaryotes, are not well constrained. Recent studies show evidence of higher than expected grazing activity by protists down to mesopelagic depths. This study provides the first exploration of protist grazing in the bathypelagic North Atlantic Deep Water (NADW). Grazing was measured throughout the water column at three stations in the South Atlantic using fluorescently-labeled prey analogues. Grazing in the deep Antarctic Intermediate water (AAIW) and NADW at all three stations removed 3.79% 卤 1.72% to 31.14% 卤 8.24% of the standing prokaryote stock. These results imply that protist grazing may be a significant source of labile organic carbon at certain meso- and bathypelagic depths.