Investigation on species diversity and the extent of defoprestation in Chake-chake By Mangrove ecosystem, Pemba Island, Tanzania
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Date
2004
Authors
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Publisher
University of Dar es Salaam
Abstract
This study involved the determination of mangrove trees and epifauna species diversity , density and the basal area, regeneration and the basal area, regeneration and the extent of deforestation. Quadrats were established along transects lines perpendicular to the mangrove shore. Eight mangrove species were countered; the most abundant species include Rhizophara mucronata, cerlops tegal and Sonneratia alba. Deforestation was at minimum level; on the other hand, good generation was observed. Seven species of epifauna were noted; the most abundant species include barnacles, tooth pearl shells, oysters, and Cerithidea. The study records no significant difference in mangrove tree species diversity among the upper, middle and lower shore zones of the mangrove forest (F=2.46,p>0.05) of mangrove trees among the three shore zones was noted. However, there was significant difference in density (F=0.54,p>0.05) as well as basal area (F=1.73,p>0.05) of mangrove tree among the three shore zones was noted. However, there was significant difference in the extent of deforestation (F=12,12,p<0.01), though no significant difference in the extent of regeneration (F=0.59,p>0.05) among the three zones of the mangrove forest was verified. There was no significant difference in epifauna species diversity (F=1.20 p>0.05), but the study noted significant difference in abundance of epifauna (f=4.25,p<0.05) among the three zones of the mangrove forest. Oil pollution was marked to be among the anthropogenic sources that affect the growth and regeneration of the mangrove. Involvement of all stakeholders in the coastal management could minimize the negative impacts in mangrove growth and survival.
Description
Available in print form, East Africana Collection, Dr.Wirbert Chagula Library, Class mark (THS EAF QK938.M27)
Keywords
Mangrove plants
Citation
Mohamed, M. S (2004) Investigation on species diversity and the extent of defoprestation in Chake-chake By Mangrove ecosystem, Pemba Island, Tanzania, Masters dissertation, University of Dar es Salaam, Dar es Salaam.