Home           Contact us           FAQs           
 
   Journal Page   |   Aims & Scope   |   Author Guideline   |   Editorial Board   |   Search
    Abstract
2012 (Vol. 4, Issue: 5)
Article Information:

Effect of Light Regime on the N-ammonium Removal by the Red Algae Gracilaria vermiculophylla

A. Sánchez-Romero, A. Miranda-Baeza, J.A. López-Elías, L.R. Martínez-Córdova, Tejeda-Mansir, E. Márquez-Ríos and M.E. Rivas-Vega
Corresponding Author:  A. Miranda-Baeza 

Key words:  Bioremediation, Gracilaria vermiculophylla, nitrogen removal, photoperiod, wavelength, ,
Vol. 4 , (5): 613-618
Submitted Accepted Published
June 13, 2012 July 09, 2012 September 20, 2012
Abstract:

The objective of the study was to evaluate the effect of 3 wavelengths (400-700, 455-475 and 620-630 nm) and 3 photoperiods (12:12, 16:08 and 24:00 h) on the ammonium removal and growth of Gracilaria vermiculophylla. In a first experiment (8 h), the total ammonium nitrogen removal rate (RRTAN) ranged from 11.63±3.21 to 15.45±3.70 μmol g DW/h, while the efficiency rate of removal, ERTAN varied from 32.40±8.93 to 43.03±10.31%. In a second experiment (8 d), the Specific Growth Rate (SGR) of the macroalgae ranged from 7.24±1.35 to 13.24±1.14% /day. At the end of the trial, the N content in the tissues of G. vermiculophylla varied from 1.49±0.14 to 2.53±0.45 g/100 g DW. The highest biomass harvested and N incorporation rate (NIR in mg.N/L.d) corresponded to the photoperiod 16:08 at a wavelength of 620-630 nm. It is concluded that photoperiod and light wavelength had a significant effect on SGR and N content in the tissues of the macroalgae.
Abstract PDF HTML
  Cite this Reference:
A. Sánchez-Romero, A. Miranda-Baeza, J.A. López-Elías, L.R. Martínez-Córdova, Tejeda-Mansir, E. Márquez-Ríos and M.E. Rivas-Vega, 2012. Effect of Light Regime on the N-ammonium Removal by the Red Algae Gracilaria vermiculophylla.  Current Research Journal of Biological Sciences, 4(5): 613-618.
    Advertise with us
 
ISSN (Online):  2041-0778
ISSN (Print):   2041-076X
Submit Manuscript
   Current Information
   Sales & Services
   Contact Information
  Executive Managing Editor
  Email: admin@maxwellsci.com
  Publishing Editor
  Email: support@maxwellsci.com
  Account Manager
  Email: faisalm@maxwellsci.com
  Journal Editor
  Email: admin@maxwellsci.com
  Press Department
  Email: press@maxwellsci.com
Home  |  Contact us  |  About us  |  Privacy Policy
Copyright © 2009. MAXWELL Science Publication, a division of MAXWELLl Scientific Organization. All rights reserved