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VIMS Articles

2007

Central Equatorial Pacific; Chlorophyll-Labeling Method; Sub-Arctic Pacific; Community Structure; Photosynthetic Pigments; Grazing Impact; Chatham Rise; Ocean; Iron; Carbon

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Full-Text Articles in Life Sciences

Taxonomic Composition And Growth Rates Of Phytoplankton Assemblages At The Subtropical Convergence East Of New Zealand, L Delizo, Walker O. Smith Jr., J Hall Jan 2007

Taxonomic Composition And Growth Rates Of Phytoplankton Assemblages At The Subtropical Convergence East Of New Zealand, L Delizo, Walker O. Smith Jr., J Hall

VIMS Articles

Off the eastern coast of New Zealand, warm, saline, nutrient-poor Subtropical Waters (STW) are separated from. cool, fresher, relatively nutrient-rich Sub-Antarctic Waters (SAW) by the Subtropical Convergence (STC). The Chatham Rise, a submarine rise, restricts. the latitudinal movement of the STC as well as mixing of STW and SAW Due to this restriction, this sector of the STC is characterized by sharp gradients in temperature, macro-(nitrate, silicate and phosphate) and micro- (iron) nutrient concentrations. Shipboard incubations were conducted during austral spring 2000 and 2001 to test the hypothesis that these gradients affect the taxonomic composition and/or growth rates of phytoplankton …