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Occurrence of a permanent algal bloom in a fish tank at delhi with special reference to factors responsible for its production

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Proceedings / Indian Academy of Sciences

Summary

M. aeruginosa, the common blue-green algae, forms a permanent bloom in the Roshanara tank, Delhi. It occurs with varying degrees of concentrations throughout the year.

A detailed study of the water chemistry of this tank which was carried out seasonally revealed that high temperature, high contents of bicarbonates, carbonates, chlorides, silicates and low redox potential have very little to do with the production of algal bloom. The chemical factors which seem to favour the growth of this alga are large quantities of organic matter present in water, high alkalinity and large concentration of phosphates and nitrates. This tank, being well sheltered by vegetation, offers little turbulence in water. Probably the stagnation caused in water is one of the most important physical factors to favour a permanent bloom ofM. aeruginosa.

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Authors and Affiliations

  1. Department of Zoology, Aligarh Muslim University, Aligarh, U.P.

    M. G. George

Authors
  1. M. G. George
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Additional information

Communicated by Professor B. C. Mahendra,f.a.sc.

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George, M.G. Occurrence of a permanent algal bloom in a fish tank at delhi with special reference to factors responsible for its production. Proc. Indian Acad. Sci. 56, 354–362 (1962). https://doi.org/10.1007/BF03051978

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  • DOI: https://doi.org/10.1007/BF03051978

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