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- Title
THE PERFORMANCE OF SPRAY-IRRIGATED ULVA LACTUCA (ULVOPHYCEAE, CHLOROPHYTA) AS A CROP AND AS A BIOFILTER OF FISHPOND EFFLUENTS.
- Authors
Msuya, Flower E.; Neori, Amir
- Abstract
The seaweed Ulva lactuca L. was spray cultured by mariculture effluents in a mattress-like layer, held in air on slanted boards by plastic netting. Air-agitated seaweed suspension tanks were the reference. Growth rate, yield, and ammonia-N removal rate were 11.8% · d−1, 171 g fresh weight (fwt) · m−2 · d−1, and 5 g N · m−2 · d−1, respectively, by the spray-cultured U. lactuca, and 16.9% · d−1, 283 g fwt · m−2 · d−1, and 7 g N · m−2 · d−1, respectively, by the tank U. lactuca. Biomass protein content was similar in both treatments. Dissolved oxygen in the fishpond effluent water was raised by >3 mg · L−1 and pH by up to half a unit, upon passage through both culture systems. The data suggest that spray-irrigation culture of U. lactuca in this simple green-mattress-like system supplies the seaweed all it needs to grow and biofilter at rates close to those in standard air-agitated tank culture.
- Subjects
ULVA; ULVACEAE; FISH ponds; LACTUCA; AQUATIC organisms
- Publication
Journal of Phycology, 2010, Vol 46, Issue 4, p813
- ISSN
0022-3646
- Publication type
Article
- DOI
10.1111/j.1529-8817.2010.00843.x