Marine Macroalgae as Biofilter in Prawn Aquaculture Effluents

ISBN-13: 9786139911127 / Angielski / Miękka / 2018 / 228 str.

Srinivasan Kameswaran; Karuppan Perumal

Opis

In general, all the eight species of seaweeds had significant nutrient uptake rates. U. lactuca showed the highest rate of nutrient uptake and G. edulis and G. verrucosa showed significant nutrient uptake. Cladophora, Codium, Sargassum, Turbinaria and Acanthophora sp. showed lesser nutrient uptake among the eight species tested. Green alga Ulva lactuca showed the highest nitrate, nitrite and ammonia uptake under sunlight and this was further increased under red light, whereas red algae Gracilaria edulis and Gracilaria verrucosa showed higher uptake of phosphate under blue light and under sunlight. Significant increase in dissolved oxygen in the effluent was observed in all cases. However the green alga Ulva lactuca showed higher increase in dissolved oxygen on exposure to red light in 48 hours. Similarly the red algae Gracilaria verrucosa and Gracilaria edulis caused increases in dissolved oxygen under blue light in 48 hours. In general, all the eight species of seaweeds had significant nutrient uptake rates. U. lactuca showed the highest rate of nutrient uptake and G. edulis and G. verrucosa showed significant nutrient uptake. Cladophora, Codium, Sargassum, Turbinaria and Acan

O autorze

Kameswaran, Srinivasan
Dr. S. Kameswaran, presently working Lecturer in Department of Botany, VSU PG Centre, Kavali- 524 201, SPSR Nellore, Andhra Pradesh, India. He did his M.Sc. in Botany and Ph.D. from University of Madras. He started his career as JRF in various projects in MCRC, Chennai and Young Scientist from Department of Science and Technology, New Delhi.