Integrated seaweed ā€“ sea cucumber farming in Tanzania

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dc.contributor.authorKunzmann, Andreas
dc.contributor.authorBeltran-Gutierrez, Marisol
dc.contributor.authorFabiani, Godfrey
dc.contributor.authorNamukose, Mary
dc.contributor.authorMsuya, Flower E.
dc.date.accessioned2019-03-09T12:49:52Z
dc.date.available2019-03-09T12:49:52Z
dc.date.issued2018
dc.description.abstractWe review piloted co-culture experiments of the sea cucumber Holothuria scabra with different seaweed species in existing lagoon-based seaweed farms in Tanzania during 2011-2014. Key questions were whether stocking densities would influence growth rates of both species, and whether deposit feeders would modify organic components in the sediments. From a social perspective, we investigate if local people are readily willing to become involved in sea cucumber farming as an optional livelihood. Seaweed-specific growth rates between 0.32 and 4.1 %dāˆ’1 were reported, showing significantly higher values for those treatments combined with sea cucumbers than for the seaweed monoculture (F3,1=3.20, p<0.05) at Zanzibar sites. Sea cucumber growth rates ranged from 0.14 to 1.6 gd-1, and all of the studies showed that the treatments holding H. scabra at a low stocking density (average of 130 gm-2) presented a higher growth performance than when it was stocked at more than 200 gm-2. Total organic matter in sediments increased in all treatments over the sampling periods (p<0.05). Some 88 percent of the surveyed local people showed willingness to participate in this type of mariculture for livelihood. The survey identified theft and lack of credit as the main hindrances for this activity. H. scabra is viable for lagoon co-culture with seaweed when taking into account proper stocking density, implications on total organic matter and total organic carbon in the system, and local acceptance by local people.en_US
dc.identifier.citationKunzmann A., Beltran-Gutierrez M., Fabiani G., Namukose M., Msuya F.E. 2018. Integrated seaweed ā€“ sea cucumber farming in Tanzania, WIO Journal of Marine Science 17(2): 35-50.en_US
dc.identifier.issn0856-860X
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5097
dc.language.isoenen_US
dc.publisherWestern Indian Ocean Journal of Marine Scienceen_US
dc.subjectHolothuria scabraen_US
dc.subjectEucheumaen_US
dc.subjectKappaphycusen_US
dc.subjectco-cultureen_US
dc.subjectgrowth ratesen_US
dc.subjectIMTAen_US
dc.titleIntegrated seaweed ā€“ sea cucumber farming in Tanzaniaen_US
dc.typeJournal Article, Peer Revieweden_US
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