Marine Phytoplankton and Productivity: Proceedings of the Invited Lectures to a Symposium Organized Within the 5th Conference of the European Society for Comparative Physiology and Biochemistry — Taormina, Sicily, Italy, September 5–8, 1983When I was asked to organize this symposium on marine producti vity, it made me reflect on what aspects of this subject would be stimulating to a heterogeneous group of laboratory-oriented physiolo gists and biochemists. In recent years there have been several books which discusses the methodology commonly used in primary production studies and described the magnitude of photosynthetic CO reduction 2 in various areas of the world's oceans. I therefore decided to dis pense with these conventional aspects of primary production and invite researchers to speak on a variety of problems relating the abundance and activity of phytoplankton to environmental conditions. The lectures I invited were thus quite diverse in character, but all were related either to factors affecting the rate of photosynthesis or to the fate of reduced carbon as it passes through the microbial food web. In addition to these talks the participants benefited from a number of shorter presentations and poster sessions which dealt with production and cycling of organic carbon in the marine environment. February 1984 Osmund HOLM-HANSEN CONTENTS 1. Factors Governing Pelagic Production in Polar Oceans E. SAKSHAUG and O. HOLM-HANSEN •. ••. ••••. . . . . . •. •••. . ••••. •. •••• 1 2. Productivity of Antarctic Waters. A Reappraisal S. Z. EL-SAYED •. . . ••••••••. . •••. •. •••••••••. •••. •. •. . . . •. . . . •. 19 3. A Thermodynamic Description of Phytoplancton Growth D. A. KIEFER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 4. Mechanisms of Organic Matter Utilization by Marine Bacterio plankton 45 F. AZAM and J. W. |
Contents
Factors Governing Pelagic Production in Polar Oceans | 1 |
A KIEFER | 35 |
Phytoplankton Solved the ArsenatePhosphate Problem | 55 |
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absorption accessory pigments algae algal analysis Antarctic phytoplankton Antarctic waters aquatic Arctic arsenic bacteria bacterioplankton Biol biological biomass bloom cages carbohydrate carbon Carrada cells cellular chemical chlorophyll coefficients concentration corals cruise cultures cyanobacteria decrease depth dialysis tubes diatoms dilution dinoflagellates Ecol Ecology ecosystem El-Sayed SZ energy equation estimates euphotic zone excitation excretion extracellular polysaccharide Figure filter flow flow cytometry fluorescence flux grazing growth rates Gulf of Naples heterotrophic Holm-Hansen irradiance layer levels light intensity limited Limnol marine bacteria marine phytoplankton maximum measurements membrane metabolic Myklestad natural populations nitrate numbers nutrient observed Oceanogr oligotrophic organic matter parameters particles pelagic phosphate photosynthesis phycoerythrin phyto phytoplankton phytoplankton growth plankton Polar Front polysaccharide primary production protein ratio reaction Reef regions Sakshaug samples seawater Southern Ocean species spectral standing crop stations studies surface waters temperature tion uptake values water column wavelength Yentsch