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dc.contributor.authorMmochi, A.J.
dc.contributor.authorDubi, A.M.
dc.contributor.authorMamboya, F.A.
dc.contributor.authorMwandya, A.W.
dc.date.accessioned2004-08-26T15:00:52Z
dc.date.available2004-08-26T15:00:52Z
dc.date.issued2002
dc.identifier.citationWestern Indian Ocean J. Marine Science, 1 (1), p. 53-63en
dc.identifier.urihttp://hdl.handle.net/1834/26
dc.descriptionResearch Group: Institute of Marine Sciences, University of Dar es Salaam, Box 668, Zanzibar, Tanzaniaen
dc.description.abstractSix mariculture ponds were flooded with seawater since 1996. During this time the ponds were stocked with finfish (milkfish and rabbitfish), which were fed on locally produced fish feed. Some water quality parameters such as temperature, salinity and oxygen saturation were measured twice a day for three years (1998-2000), while nutrient concentrations were measured weekly for one year. Both nutrient concentration and oxygen saturation levels have shown a trend indicating eutrophication. Oxygen concentration changed from an average of 7.16 mg/l in October 1998 to 2.2 mg/l in March 2000 with a negative linear regression of 0.69 during the morning hours. From August 1998 to April 1999 dissolved inorganic ammonia concentration increased by 9 µg-at NIl, from 8.91 to 18.02 with a positive linear regression of 0.79. During this period soluble reactive phosphorus increased by 3.55 µg-at PII from 4.36 to 7.91 with a positive linear regression of 0.75. In this paper the rate of eutrophication and the limit at which the ponds have to be dried/limed before restocking are discussed.en
dc.format.extent273472 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherWestern Indian Ocean Marine Science Association (WIOMSA)en
dc.subjectMarine aquacultureen
dc.subjectWater qualityen
dc.subjectNutrientsen
dc.subjectDissolved oxygenen
dc.subjectEutrophicationen
dc.subjectFish cultureen
dc.subjectFish feeden
dc.subjectShellfish cultureen
dc.subjectSeaweed cultureen
dc.subjectBiofiltrationen
dc.subjectEnvironmental pollutionen
dc.subjectISW, Tanzaniaen
dc.titleEffects of Fish Culture on Water Quality of an Integrated Mariculture Pond System.en
dc.typeJournal Contribution
dc.bibliographicCitation.endpage63
dc.bibliographicCitation.issue1
dc.bibliographicCitation.stpage53
dc.bibliographicCitation.titleWestern Indian Ocean J. Marine Scienceen
dc.bibliographicCitation.volume1
dc.description.statusPublisheden
refterms.dateFOA2021-01-30T18:47:33Z


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