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Contribution to the ecology of Indian aquatics

I. Seasonal changes in biomass of water hyacinth [Eichhornia crassipes (Mart.) solms]

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Summary

A detailed account of the seasonal changes in vegetational cover, rate of biomass change and production of E. crassipes, growing under natural conditions in a perennial lake (‘Ramgarh’) of Gorakhpur (U.P.) India, is given in the present paper. The observations indicate that:

  1. a.

    The maximum biomass is found in mid-winter months after the maximum flowering period of the plant is over and the maximum cover in the post-winter months succeeding the maximum biomass period.

  2. b.

    The annual net production (excluding all losses caused either by respiration or by biotic interferences) is 103.0 g organic matter/m2.

  3. c.

    The maximum rate of biomass change is found as 3.8 g organic matter/m2.

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Authors and Affiliations

  1. Department of Botany, Gorakhpur University, Gorakhpur, U.P., India

    R. Sahai & A. B. Sinha

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  1. R. Sahai
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  2. A. B. Sinha
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Sahai, R., Sinha, A.B. Contribution to the ecology of Indian aquatics. Hydrobiologia 35, 376–382 (1970). https://doi.org/10.1007/BF00184564

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  • DOI: https://doi.org/10.1007/BF00184564

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