Phenology of particle size distributions and primary productivity in the N orth P acific subtropical gyre ( S tation ALOHA )
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چکیده
منابع مشابه
Phenology of particle size distributions and primary productivity in the North Pacific subtropical gyre (Station ALOHA)
The particle size distribution (PSD) is a critical aspect of the oceanic ecosystem. Local variability in the PSD can be indicative of shifts in microbial community structure and reveal patterns in cell growth and loss. The PSD also plays a central role in particle export by influencing settling speed. Satellite-based models of primary productivity (PP) often rely on aspects of photophysiology t...
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During the summer of 2012, we used laser diffractometry to investigate the temporal and vertical variability of the particle size spectrum (1.25–100 mm in equivalent diameter) in the euphotic zone of the North Pacific Subtropical Gyre. Particles measured with this optical method accounted for;40% of the particulate carbon stocks (<202 mm) in the upper euphotic zone (25–75 m), as estimated using...
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Using autonomous underwater gliders, we quantified diurnal periodicity in dissolved oxygen, chlorophyll, and temperature in the subtropical North Pacific near the Hawaii Ocean Time-series (HOT) Station ALOHA during summer 2012. Oxygen optodes provided sufficient stability and precision to quantify diel cycles of average amplitude of 0.6μmolkg . A theoretical diel curve was fit to daily observat...
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The biologically available phosphorus (BAP) and soluble reactive phosphorus (SRP) concentrations and phosphorus (P) uptake rates within the euphotic zone (0–175 m) were measured on eight cruises between October 2000 and November 2001 to Sta. ALOHA (22.758N, 1588W) in the North Pacific Subtropical Gyre. The SRP concentrations in the upper 100 m ranged from 7 to 84 nmol P L21, with a mean concent...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 2015
ISSN: 2169-9275,2169-9291
DOI: 10.1002/2015jc010897