Biogenic and lithogenic silica, silicic acid, production of biogenic silica, and irradiance measurements during the Ross Sea Bloom Project 1994-1996 ...

• Main Authors: Smith, Walker O Jr, Nelson, David M, Mathot, Sylvie
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1999
• Subjects: Bottle, Niskin; Bio-Rosette; RossSeaBloomProject1994; RossSeaBloomProject1995/1996; Nathaniel B. Palmer; Antarc*; Antarctica; Ross Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.758059; https://doi.pangaea.de/10.1594/PANGAEA.758059

The development of the seasonal phytoplankton bloom in the Ross Sea was studied during two cruises. The first, conducted in November-December 1994, investigated the initiation and rapid growth of the bloom, whereas the second (December 1995-January 1996) concentrated on the bloom's maximum biomass period and the subsequent decline in biomass. Central to the understanding of the controls of growth and the summer decline of the bloom is a quantitative assessment of the growth rate of phytoplankton. Growth rates were estimated over two time scales with different methods. The first estimated daily growth rates from isotropic incorporation under simulated in situ conditions, including 14C, 15N and 32Si uptake measurements combined with estimates of standing stocks of particulate organic carbon, nitrogen and biogenic silica. The second method used daily to weekly changes in biomass at selected locations, with net growth rates being estimated from changes in standing stocks of phytoplankton. In addition, growth ... : Supplement to: Smith, Walker O Jr; Nelson, David M; Mathot, Sylvie (1999): Phytoplankton growth rates in the Ross Sea, Antarctica, determined by independent methods: temporal variations. Journal of Plankton Research, 21(8), 1519-1536 ...