30Nov 2015

INFLUENCE OF STOCKS OF NITROGEN AND PHOSPHORUS ON DISTRIBUTION OF WATER HYACINTH (Eichhornia crassipes) IN LAKE NOKOUE IN BENIN.

  • Unité de Recherche en Ecotoxicologie et Etude de Qualité / Laboratoire d’Etude et de Recherche en Chimie Appliquée/Ecole Polytechnique d’Abomey- Calavi ; 01 BP 2009 Cotonou, Rép du Bénin.
  • Laboratoire des Sciences du sol, Eaux et Environnement /INRAB ;01 BP 884 Cotonou, Rép du Bénin
  • Abstract
  • Keywords
  • Cite This Article as
  • Corresponding Author

The present study aimed to evaluate the influence of nitrogen and phosphorus stocks on the distribution of water hyacinth in Lake Nokoue. Apart from conventional water quality parameters, the range of concentrations (in mg /L) of the parameters indicative of nitrogenous pollution and phosphorus and dissolved oxygen measured in the lake is as follow: NO2- (0.01 to 74); NO3- (1.00 to 24.94); NH4+ (0.02 to 8.80); PO43- (0.04 to 7.65); Ptotal (0.0 to 1.2); O2dissolved (2.10 to 4.25). The concentrations of nutrients are in most of the cases above the WHO and Benin standards related to surface water quality. Such high concentrations justify the invasion of the lake by the water hyacinth (Eichhornia Crassipes) when salinity levels are low (< 3 ‰) in these water.

[Mickael Vitus Martin Kpessou Saizonou, Leonce Firmin Comlan Dovonon, Safiri Ibouraima, Magloire Gbaguidi, Alassane Youssao, Henri Houenoukpo Soclo, Dominique Sohounhoule (2015); INFLUENCE OF STOCKS OF NITROGEN AND PHOSPHORUS ON DISTRIBUTION OF WATER HYACINTH (Eichhornia crassipes) IN LAKE NOKOUE IN BENIN. Int. J. of Adv. Res. 3 (Nov). 943-950] (ISSN 2320-5407). www.journalijar.com

Mickaël Vitus Martin Kpessou. Saizonou, Léonce Firmin Comlan

Download Full Paper

Download PDF No. of Downloads: 22 | No. of Views: 72