EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Phyto plankton ecology in the southern benguela current southwestern africa 2. carbon assimilation patterns



Phyto plankton ecology in the southern benguela current southwestern africa 2. carbon assimilation patterns



Journal of Experimental Marine Biology and Ecology 63(3): 229-238



The patterns of C assimilation into the major end-products of phytoplankton photosynthesis were studied in the Southern Benguela Current during the summer of 1979-1980 using [14C]bicarbonate as a tracer. Greater activity was measured in the polysaccharide (TCA[trichloroacetic acid]-soluble) fraction in aged upwelled water (Type 3) than in maturing upwelled water (Type 2) at both high and low light intensities. Conversely, a greater proportion of the label was incorporated into the protein (TCA-insoluble) fraction in maturing than in aged upwelled water. An approximately equal distribution of the label between polysaccharide and protein at the 50% light intensity was recorded in freshly upwelled water (Type 1), but at the 1% intensity greater activity was detected in the ethanol-soluble fraction. In aging upwelled water (Types 2 and 3) more 14C was incorporated into polysaccharide at the 50% light intensity than at the 1% intensity, but the percent incorporation was greater in Type 3 water when low nitrate concentrations prevailed. In this aging water radioactivity in the protein fraction was greater at the 1% intensity than at 50% intensity.

(PDF emailed within 1 workday: $29.90)

Accession: 006120165

Download citation: RISBibTeXText



Related references

Phyto plankton ecology in the southern benguela current southwestern africa 3. dynamics of a bloom. Journal of Experimental Marine Biology and Ecology 63(3): 239-248, 1982

Phyto plankton ecology in the southern benguela current southwestern africa 1. biochemical composition. Journal of Experimental Marine Biology and Ecology 63(3): 209-228, 1982

Phytoplankton ecology in the Southern Benguela current. II. Carbon assimilation patterns South Africa. Journal of experimental marine biology and ecology, 63(3): 229-237, 1982

Phyto plankton and nutrients in the southern benguela region south africa. Transactions Of The Royal Society Of South Africa: 347-356, 1981

Phyto plankton biomass and production in a southern benguela south africa kelp bed system. Marine Ecology Progress Series 8(1): 9-14, 1982

Phyto plankton primary production in the benguela south africa current from ship and satellite measurements. South African Journal of Science 79(4): 144, 1983

Measurement of carbon 14 assimilation patterns in phyto plankton. Fisheries Bulletin South Africa (15): 95-98, 1981

Phytoplankton ecology in the Southern Benguela current. I. Biochemical composition South Africa. Journal of experimental marine biology and ecology, 63(3): 209-227, 1982

Miocene-Pleistocene sedimentary record of carbon burial under the Benguela Current upwelling system, southwestern margin of Africa. Proceedings of the Ocean Drilling Program, Scientific Results (CD-Rom) 175(2002, 2002

Time series uptake of carbon into photosynthetic products of benguela phyto plankton populations/. Journal of Plankton Research 6(3): 435-442, 1984

Ecology of the nekton and plankton in the benguela current. Tydskrif vir Natuurwetenskappe 10(1): 1-15, 1970

Zoo plankton grazing in the southern benguela south africa. South African Journal of Science 79(4): 145, 1983

The benguela current off south west africa plankton productivity. Fisheries Bulletin South Africa (4): 1-7, 1967