The sea food industry along the Kenyan coastline with the view of establishing their completenessĪnd efficiency. This study looks closely at the key value chain activities that characterize The sea food supply chain along the Kenyan coast, with particular interest on fish, and propose sustainable The general objective of this study was to identify the challenges faced in the process of adding value in The results of this study indicate that there is an urgent need for a multi-disciplinary approach for the conservation and management of this complex mangrove ecosystem. L racemosa was absent in Shimoni, Gazi and Ngomeni swamps. racemosa with an exception only at Shimoni where S.alba was ranked third. tagal had the highest Importance Value Index (l.V.!.) within the four stands except at Shimoni where B. ofS.9cm and 7.7cm respectively were ranked higher d1an Ngomeni which stood at 7.Ocm and indicated that Ngomeni harboured a young population. The mangrove stand at Shimoni had the highest complexity index of 20.17 while Ngomeni, Mida Creek and Gazi stands had complexity indices of 14.49, 12.29 and 5.97 respectively. The study was conducted using the transect method and the diameters, densities, forking, tree height, crown diameters and regeneration of mangals were recorded. Structural attributes of mangrove forests were studied at Shimoni, Gazi, Mida Creek and Ngomeni swamps along the Kenyan coast. South Africa, providing a means to test latitudinalĬhanges in diversity and species distributions. Replicated southwards into southern Mozambique and The diversity gradient northwards into Kenya is Significantly affect the dataset, as may faunal changes due to bleaching or other impacts at individual sitesĭuring the course of the study. Unclear taxonomy of scleractinian corals may Lower diversity northwards into Kenya may reflectĭistance and low dispersal from the center of diversityĪt 10oS, and poorer conditions due to the SomaliĬurrent influence in the north. Stepping stones to the East African mainland coast. Restricted diversity due to low area but nevertheless be These patterns are consistent with theĬentral coast (around 10oS in Tanzania/Mozambique)Īccumulating and retaining species due to the SouthĮquatorial Current (SEC) and mixing/reversingĬurrents locally, respectively. Species diversity was lower in theĬentral Indian Ocean islands (140-240 species) andĭeclined steadily to a minimum in northern Kenya Mafia Island to Pemba town), with 280-320 speciesĮstimated per site. Southern Tanzania to northern Mozambique (from The highest diversity of corals was found in Samples per site, assumed to reflect the total number Numbers at each site at an arbitrary value of 30 Regression curves, which provide estimated species Samples at each site were used to construct logarithmic Km in extent and was sampled with from 7 to 27ĭives. Each site varied from approximately 50-200 Scleractinian coral species surveys were conducted atġ0 sites in the western Indian Ocean, between 2002Īnd 2006. Leads to exponential decline in forest complexity and requires management Of the forest and hence may impair forest functioning and regeneration and Mangrove forests affects the species composition and structural complexity These results indicate that overexploitation of (Rhizophora and Bruguiera), being dominated by juvenile and stuntedĬeriops and Avicennia. Recorded significantly (ANOVA, P10cm) and species Human activities, such as digging for fish bait at the sites. Physical disturbance wasĮvaluated through tree harvesting intensity, roads and footpaths and other This study investigated the impact of human physicalĭisturbance on the structure of mangrove forests by comparing forestĪttributes such as density, taxon richness, stem diameter and tree heightīetween disturbed and relatively undisturbed sites. Human physical disturbance is prevalent in mangrove forests of the Western
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