Water alkaline phosphatase activity andphosphorus availability during summer ininland water bodies


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Authors

  • S K Manna Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
  • A B Som Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
  • S Samanta Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India

Abstract

Phosphorus is a limiting nutrient in most freshwater environments. Alkalinephosphatase enzyme plays an important role in phosphorus cycling and may bedecisive in primary and secondary production. In the present investigation totalwater alkaline phosphatase activity was high during summer in all the waterbodies. Relative contributions of algal, bacterial and dissolved fractions to totalwater phosphatase activity were 11-50, 3-8 and 41-83% respectively. Unlike cellfree and bacterial phosphatases, phytoplankton specific enzyme activity waspositively correlated to orthophosphate concentration. Algal specific enzymeactivity was low suggesting P-uptake to be a more important process than Pregeneration in hyper-eutrophic sewage fed ponds.

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Author Biographies

  • S K Manna, Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
    Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
  • A B Som, Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
    Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
  • S Samanta, Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India
    Central Inland Fisheries Research Institute (ICAR),Barrackpore, Kolkata - 700 120, India

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Issue

Vol. 53 No. 2 (2006)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Manna, S. K., Som, A. B., & Samanta, S. (2011). Water alkaline phosphatase activity andphosphorus availability during summer ininland water bodies. Indian Journal of Fisheries, 53(2), 167-173. https://epubs.icar.org.in/index.php/IJF/article/view/6969