Abstract
Relationship of Synechococcus Abundance to Seasonal Ocean Temperature Ranges
Highlights
Picophytoplankton, predominantly Synechococcus and Prochlorococcus, are widely distributed throughout the world’s oceans and are responsible for an important fraction of primary productivity especially in nutrient-poor waters (Olson et al 1990; Legendre and Rassoulzadegan 1996; Agawin et al 2000; Chiang et al 2002; Worden et al 2004)
We examine the hypothesis that temperature, in particular its relative variability, is a major physical factor predicting seasonal variations of Synechococcus abundance across a wide geographic range
The Kuroshio Water (KW) system is located adjacent to the outer deep-water region of the East China Sea (ECS) and is distinguished by its high temperature and high salinity (Miao and Yu 1991); the Taiwan Current Warm Water (TCWW) is composed of waters originating from northward flow through the Taiwan Strait and shelf-intrusion waters of the Kuroshio Current (Jan et al 2002, 2010)
Summary
Picophytoplankton, predominantly Synechococcus and Prochlorococcus, are widely distributed throughout the world’s oceans and are responsible for an important fraction of primary productivity especially in nutrient-poor waters (Olson et al 1990; Legendre and Rassoulzadegan 1996; Agawin et al 2000; Chiang et al 2002; Worden et al 2004). Agawin et al (1998) found a close positive relationship between temperature and Synechococcus growth rates (0 to 2.3 d-1) across a wide temperature range (-0.5 to 25°C) in a bay of the Mediterranean Sea. In temperate waters, the annual cycle of Synechococcus abundance is quite regular.
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