Ulva reticulata and Gracilaria crassa: Macroalgae That Can Biofilter Effluent from Tidal Fishponds in Tanzania

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dc.contributor.authorMsuya, Flower E.
dc.contributor.authorNeori, Amir
dc.date.accessioned2016-02-16T15:24:11Z
dc.date.available2016-02-16T15:24:11Z
dc.date.issued2002
dc.description.abstractMacroalgae (seaweed) can be cultured effectively for the production of useful algal biomass and removal of nutrients from fishpond effluents. A land-based, tide/gravity-driven flow-through, fish-macroalgae integrated system was studied at Makoba Bay, Zanzibar, Tanzania, during May–October, 2000. Rectangular cages made of 1-inch mesh netting were constructed in channels that received the outflows of the fishponds. Four species of macroalgae were planted in the cages and compared for their usefulness as biofilters. Gracilaria crassa and Ulva reticulata grew at average rates of 1.5 and 1.2 %, respectively. Both species removed nitrogen as seaweed protein at rates of up to 0.4 g N/m2/d. The algal biomass produced was of good quality with protein dry weight contents of 13% for G. crassa and 26 % for U. reticulata. The biofilters also raised the pH values of the fishpond effluents and oxygenated the water. In contrast to Ulva and Gracilaria, species of Eucheuma and Chaetomorpha performed poorly in the fishpond effluents.en_US
dc.identifier.citationMsuya F.E. and Neori A. 2002. Ulva reticulata and Gracilaria crassa: macroalgae that can biofilter effluent from tidal fishponds in Tanzania. Western Indian Ocean Journal of Marine Science, 1: 117–12.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/408
dc.language.isoenen_US
dc.publisherWestern Indian Ocean Marine Science Associationen_US
dc.subjectmacroalgal biofiltersen_US
dc.subjectseaweeden_US
dc.subjectyielden_US
dc.subjectprotein contenten_US
dc.subjectintegrated maricultureen_US
dc.subjectnutrientsen_US
dc.subjecteutrophicationen_US
dc.subjectsustainable developmenten_US
dc.titleUlva reticulata and Gracilaria crassa: Macroalgae That Can Biofilter Effluent from Tidal Fishponds in Tanzaniaen_US
dc.typeJournal Article, Peer Revieweden_US
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