Primary Production and Community Respiration in a Warm Streamer Associated with Kuroshio Warm Core Ring in Spring

摘要

Daily rates of gross primary production, net community production and community respiration were determined in spring of 1997 at two stations in a warm streamer off Sanriku, Japan from in vitro changes in dissolved oxygen. The phytoplankton community Was composed of chlorophytes, cryptophytes and prymnesiophytes as determined by biomarker pigment analysis. Gross production, integrated from the surface to its 1/100 light Level was 52.5 and 80.4 mmol O_2 m~-2d~-1. The difference in gross production is ascribed to Variations in photosynthetic activity of the population.