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The primary productivity of submerged macrophytes in West Blue Lake, Manitoba


, : The primary productivity of submerged macrophytes in West Blue Lake, Manitoba. Canadian Journal of Botany 55(2): 118-127

The productivity of Potamogeton Richardsonii, P. pectinatus, Myriophyllum alterniflorum, Megalodonta Beckii, and Chara vulgaris in West Blue Lake, Manitoba [Canada] is reported. Measurements of changes in biomass and assimilation of 14CO2 in random and non-random samples throughout the growing season of 1973 were used. Changes in biomass of P. Richardsonii, M. alterniflorum, M. Beckii, and C. vulgaris determined from random samples compared favorably with those determined from non-random samples. This was not the case for P. pectinatus because of its restricted occurrence. Similarly, measurements of 14CO2 assimilation in random samples of P. Richardsonii, M. alterniflorum, and M. Beckii compared well with non-random samples. Productivity values derived from 14CO2 uptake were far in excess of those attained from biomass changes. Seasonal trends of production and the depth distribution of production are discussed, and macrophyte production is compared with phytoplankton production.

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Accession: 000550268

DOI: 10.1139/b77-019

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Related references

Love, R.J.R.; Robinson, G.G.C., 1977: The primary productivity of submerged macrophytes in west blue lake manitoba canada. The productivity of Potamogeton Richardsonii, P. pectinatus, Myriophyllum alterniflorum, Megalodonta Beckii, and Chara vulgaris in West Blue Lake, Manitoba [Canada] is reported. Measurements of changes in biomass and assimilation of 14CO2 in rando...

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