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In-vivo absorption properties of algal pigments
Estimates of the in vivo specific absorption coefficients (m2 mg'; 400-750 nm, 2 nm intervals) for the major algal pigment groups (chlorophylls, carotenoids and phycobilins) are presented.
Diverse taxa of cyanobacteria produce beta-N-methylamino-L-alanine, a neurotoxic amino acid.
  • P. Cox, S. Banack, B. Bergman
  • Biology, Environmental Science
    Proceedings of the National Academy of Sciences…
  • 5 April 2005
It is reported here that a single neurotoxin, beta-N-methylamino-L-alanine, may be produced by all known groups of cyanobacteria, including cyanobacterial symbionts and free-living cyanob bacteria.
Consistent fractionation of 13C in nature and in the laboratory: Growth‐rate effects in some haptophyte algae
Before concentrations of dissolved CO2 can be estimated from isotopic fractionations, some means of accounting for variations in growth rate must be found, perhaps by drawing on relationships between [PO4] and Cd/Ca ratios in shells of planktonic foraminifera.
Testing the iron hypothesis in ecosystems of the equatorial Pacific Ocean
Findings indicate that iron limitation can control rates of phytoplankton productivity and biomass in the ocean.
Revisiting Carbon Flux Through the Ocean's Twilight Zone
A large variability in transfer efficiency of sinking particulate organic carbon between 150 and 500 meters of 20 and 50% at two contrasting sites is measured, which is equivalent to a difference in carbon sequestration of more than 3 petagrams of carbon per year.
Ozone depletion: ultraviolet radiation and phytoplankton biology in antarctic waters.
Results from a 6-week cruise in the marginal ice zone of the Bellingshausen Sea in austral spring of 1990 indicated that O3-dependent shifts of in-water spectral irradiances alter the balance of spectrally dependent phytoplankton processes, including photoinhibition, photoreactivation, photoprotection, and photosynthesis.
Light driven seasonal patterns of chlorophyll and nitrate in the lower euphotic zone of the North Pacific Subtropical Gyre
The euphotic zone below the deep chlorophyll maximum layer (DCML) at Station ALOHA (a long‐term oligotrophic habitat assessment; 22°45′N, 158°00′W) transects the nearly permanently stratified upper
Temporal variability of phytoplankton community structure based on pigment analysis
Results from size fractionation and normal-phase high performance liquid chromatography confirm that Prochforococcus spp.