Kenya Marine and Fisheries Research InstituteKMFRIhttp://hdl.handle.net/1834/902024-03-29T02:24:41Z2024-03-29T02:24:41ZThe status of Kenya Fisheries: Towards sustainability exploitation of fisheries resources for food security and economic development.Kimani, E.Okemwa, G.Aura, C.http://hdl.handle.net/1834/161232021-05-19T06:15:53Z2018-01-01T00:00:00ZThe status of Kenya Fisheries: Towards sustainability exploitation of fisheries resources for food security and economic development.
Kimani, E.; Okemwa, G.; Aura, C.
The information presented in this book is structured in a simple way that can be useful to
fisheries students, scientists, managers, the fishing industry, fish traders, consumers and the
general public. The book is structured into two technical chapters (1 and 2) that provide an
overview of the current status of marine and freshwater fisheries respectively. An overview
that provides the geographical and physical setting of the marine and freshwater bodies
is provided at the beginning of each of the chapters. Chapter 3 examines the legal and
policy frameworks that govern the fisheries sector and management developments
that have taken place, particularly the implications of the new dispensation of the new
Constitution in 2010. Chapter 4 concludes with a brief overview of the value of fisheries
and the contribution of the sector to national economic development, National GDP,
employment and food security.
2018-01-01T00:00:00ZCoastal Aquaculture Potential of East AfricaBwathondi, P.O.http://hdl.handle.net/1834/161032021-05-19T06:15:53Z1981-01-01T00:00:00ZCoastal Aquaculture Potential of East Africa
Bwathondi, P.O.
Studies on the aquaculture potential of East African coast has been given. Due to the large expanse of mangrove areas in the region, it has been suggested that the culture of penaeid prawns, particularly
Penaeus indicus (H. Milne Edwards), P. monodon (Fabricius), P.semisulcatus (De Haan) and Metapenaeus monoceros (Fabricius) be attempted in the mangrove areas and creeks. Such rearing experiments should be run concurrently with experiments involving the breeding of the prawns in the laboratory. Experiments carried out on the rearing of mollusks show that the region does not support any appreciable growth of oysters, particularly the commercial species. The dominant genera in the region are Ostrea and Crassostrea. The former genus has a slow growth rate and little meat yield. Experiments are underway to determine the aquaculture potential of mussels. Fish culture, particularly the culture of rabbitfish Siganus spp. has a promising future in the region. Rearing experiments carried out at the Institute of Marine Sciences, University of Dar es Salaam,
Zanzibar, have indicated that the fish can be cultured to maturity size of 23.4 cm total length within about 8-9 months. The growth rate of this fish has also been determined by the author. Other fish which have a promising aquaculture potential in the region are milkfish Chanos spp; and Epinephelus spp. The study of seaweeds of Tanzania has reached an advanced stage. Already researches are underway to open seaweed farms both in Zanzibar and Pemba Islands and along the coast of Tanzania Mainland. One of the most valuable seaweeds which has attracted great attention in the region is Eucheuma spp.
1981-01-01T00:00:00ZImpact of Human Physical Disturbance on Mangrove Forest Structure at the Gazi Bay, KenyaKihia, C.M.http://hdl.handle.net/1834/107332021-05-19T06:15:19Z2014-01-01T00:00:00ZImpact of Human Physical Disturbance on Mangrove Forest Structure at the Gazi Bay, Kenya
Kihia, C.M.
Human physical disturbance is prevalent in mangrove forests of the Western
Indian Ocean. This study investigated the impact of human physical
disturbance on the structure of mangrove forests by comparing forest
attributes such as density, taxon richness, stem diameter and tree height
between disturbed and relatively undisturbed sites. Physical disturbance was
evaluated through tree harvesting intensity, roads and footpaths and other
human activities, such as digging for fish bait at the sites. Disturbed sites
recorded significantly (ANOVA, P<0.001) higher tree cutting intensity than
comparable undisturbed sites, corresponding to lower forest complexity and
changes in dominant tree species. Disturbance increased prevalence of
Avicennia marina and Ceriops tagal species at the landward margin of
disturbed sites. Disturbed sites also recorded significantly lower abundance
of harvestable trees and stand volume (223 stem.ha-1, 14.56 m3
.ha-1,
respectively) than undisturbed sites (288 stem.ha-1, 19.69 m3
.ha-1,
respectively). In addition, accessible sites recorded lower marketable trees,
heights, pole size classes (mazio 4-6cm, boriti >10cm) and species
(Rhizophora and Bruguiera), being dominated by juvenile and stunted
Ceriops and Avicennia. These results indicate that overexploitation of
mangrove forests affects the species composition and structural complexity
of the forest and hence may impair forest functioning and regeneration and
subsequently, sustainable exploitation. Thus, human physical disturbance
leads to exponential decline in forest complexity and requires management
intervention.
2014-01-01T00:00:00ZFisheries in the Southwest Indian Ocean: Trends and Governance ChallengesKimani, E.N.Okemwa, G.M.Kazungu, J.M.http://hdl.handle.net/1834/105142021-05-19T06:14:57Z2009-01-01T00:00:00ZFisheries in the Southwest Indian Ocean: Trends and Governance Challenges
Kimani, E.N.; Okemwa, G.M.; Kazungu, J.M.
Laipson, E.; Pandya, A.
This assessment presents an overview of the current and prospective fisheries in the context of other transnational issues that affect the Southwest Indian Ocean (SWIO) region. It also examines key governance challenges, as well as trade-offs that can be made in the short and long term to meet the needs and interests of local fisher communities, national governments, and the international trade mechanisms that shape the region’s maritime policies. Finally, it reviews the work of regional and global fishery organizations in managing the IO fisheries.
2009-01-01T00:00:00Z