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Proceedings: Plant Sciences

, Volume 99, Issue 5, pp 485–501 | Cite as

Seasonal patterns of phytoplankton biomass and productivity in a tropical estuarine complex (west coast of India)

  • V P Devassy
  • J I Goes
Article
  • 85 Downloads

Abstract

Phytoplankton cell numbers and chlorophylla determinations were made during the premonsoon, monsoon and postmonsoon periods in the Mandovi-Zuari estuarine complex (west coast of India). Primary productivity estimates agreed well with chlorophylla and phytoplankton cell numbers. The consequent decline in salinity with the onset of monsoon was found to be an important factor controlling the distribution, abundance and productivity of phytoplankton. As compared to the Zuari estuary, the Mandovi retained typical estuarine conditions and a greater phytoplankton biomass. Based on primary productivity estimations, the potential fishery resource of this estuarine complex has been computed.

Keywords

Phytoplankton biomass productivity environmental interrelationship tropical estuary 

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References

  1. Bhargava R M S 1973 Diurnal variation of phytoplankton pigments of Mandovi estuary, Goa;Indian J. Mar. Sci. 2 27–31Google Scholar
  2. Bhargava R M S 1974 Diurnal variation in phytoplankton pigments in Zuari estuary;Indian J. Mar. Sci. 5 142–145Google Scholar
  3. Bhargava R M S and Dwivedi S N 1976 Seasonal distribution of phytoplankton pigments in the estuarine system of Goa;Indian J. Mar. Sci. 5 87–90Google Scholar
  4. Bhattathiri P M A, Devassy V P and Bhargava R M S 1976 Production at different trophic levels in the estuarine system of Goa;Indian J. Mar. Sci. 5 83–86Google Scholar
  5. Das P K, Murthy C S and Varadachari V V R 1972 Flow characteristics of Cumbarjua canal connecting the two estuaries Mandovi and Zuari;Indian J. Mar. Sci. 1 95–102Google Scholar
  6. Desikachary T V and Rao V N R 1972 Salinity and diatoms;J. Mar. Biol. Assoc. India 14 524–538Google Scholar
  7. Devassy V P 1983Plankton ecology of some estuarine and marine regions of the west coast of India, Ph.D. thesis, University of Kerala, TrivandrumGoogle Scholar
  8. Devassy V P and Bhattathiri P M A 1974 Phytoplankton ecology of the Cochin backwater;Indian J. Mar. Sci. 3 46–50Google Scholar
  9. Devassy V P and Bhargava R M S 1978 Diel changes in phytoplankton population in the Mandovi and Zuari estuaries of Goa;Mahasagar-Bull. Natl. Inst. Oceanogr. 11 195–199Google Scholar
  10. Goswami S C and Selvakumar R A 1977 Plankton studies in the estuarine system of Goa;Proc. Symp. Warm Water Zoopl. Spl. Publ. UNESCO/NIO, pp 226–241Google Scholar
  11. Kinne O 1967 Physiology of estuarine organisms with special reference to salinity and temperature— General aspects; inEstuaries, A A A S Publ No. 83 Washington DC, pp 525–540Google Scholar
  12. Parulekar A H, Dhargalkar V K and Singbal S Y S 1980 Benthic studies in Goa estuaries, Part III. Annual cycle of macrofaunal distribution, production and trophic relations;Indian J. Mar. Sci. 9 189–200Google Scholar
  13. Qasim S Z 1977 Biological productivity of the Indian Ocean;Indian J. Mar. Sci. 6 122–137Google Scholar
  14. Qasim S Z, Wellershaus S, Bhattathiri P M A and Abidi S A H 1969 Organic production in a tropical estuary;Proc. Indian Acad. Sci. B69 51–94Google Scholar
  15. Qasim S Z, Bhattathiri P M A and Devassy V P 1972 The influence of salinity on the rate of photosynthesis and abundance of some tropical phytoplankton;Mar. Biol. 12 200–206CrossRefGoogle Scholar
  16. Qasim S Z and Madhupratap M 1979 Changing ecology of Cochin backwaters; inContributions to marine sciences, dedicated to Dr C V Kurian, Univ. of Cochin, pp 137–142Google Scholar
  17. Qasim S Z and Sengupta R 1981 Environmental characteristics of the Mandovi-Zuari estuarine system in Goa;Estuarine, Coastal Shelf Sci. 13 557–578CrossRefGoogle Scholar
  18. Ragothaman G and Rao V N R 1978 Diatom abundance in the nearshores of the Bay of Bengal off Madras;Indian J. Mar. Sci. 7 65–66Google Scholar
  19. Selvakumar R A, Nair V R and Madhupratap M 1980 Seasonal variations in secondary production of the Mandovi-Zuari estuarine system of Goa;Indian J. Mar. Sci. 9 27–34Google Scholar
  20. Steemann Nielsen B 1952 The use of radioactive carbon [14C] for measuring organic production in the sea;J. Cons. Int. Explor Mar. 18 117–140Google Scholar
  21. Strickland J D H and Parsons T R 1968 A practical handbook of seawater analysis;Bull. Fish Res. Board Can. 167 311Google Scholar

Copyright information

© Indian Academy of Sciences 1989

Authors and Affiliations

  • V P Devassy
    • 1
  • J I Goes
    • 1
  1. 1.National Institute of OceanographyDona PaulaIndia

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