Department of Fisheries and Natural Resources: Recent submissions
Now showing items 21-40 of 110
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Growth Performance of African Catfish (Clarias Gariepinus) Fed on Diets Containing Black Soldier Fly (Hermetia Illucens) Larvae Under Aquaponic System
(AQUAST910, 2022)Cost of fish production can be reduced by replacement of high-priced fishmeal (FM) with insects sourced ingredients. Four months feed experiment was conducted at a fish farm in Baringo County, Kenya to investigate effects ... -
Factors Affecting Productivity and Profitability of Cage-Fish Farming in Siaya County, Kenya
(KALRO, 2022)Aquaculture is regarded as a critical rural development and livelihood strategy due to its vital role in livelihoods and the economy at large. However, declining capture fisheries from Lake Victoria and low pond productivity ... -
Biofloc and green water condition improves reproductive traits and fatty acid composition of Artemia franciscana cultured under limited algal conditions
(John Wiley & Sons, Ltd, 2022-11-29)This study investigated the effect of biofloc and green water conditions on the survival, growth, reproductive traits, and fatty acid composition of the brine shrimp Artemia franciscana. Artemia was cultured in glass jars ... -
Nile tilapia (Oreochromis niloticus Linnaeus, 1758) culture in Kenya: Emerging production technologies and socio-economic impacts on local livelihoods
(Wiley online library, 2022)Nile tilapia (Oreochromis niloticus) is one of the most farmed fish globally, with a significant contribution improving local livelihoods, especially in developing countries. Nile tilapia was first cultured in Kenya in ... -
Phytoplankton distribution along a salinity gradient in two Kenyan saltworks (Tana and Kurawa)
(AJOL, 2022)The current study assessed the diversity and abundance of phytoplankton genera in two Kenyan saltworks (Tana and Kurawa) in March and September 2021. Water samples were obtained from ponds with salinities ranging from 30 ... -
Parasitic loads in the genetically improved (F7) Nile tilapia Oreochromis niloticus (L.) cultured in fish farms in Busia and Siaya Counties, Kenya: indicators of increased resistance and efficiencies of synergistic technologies adoptions
(Research square, 2022)In Kenya, breeding programmes whose source of genetic material is local water bodies are at inception with the National Aquaculture Research Center, Sagana being the Nile tilapia and African catfish breeding nucleus. Fish ... -
Ecological implications of Rastrineobola argentea (omena) fishery: A rapid assessment of bycatch diversity at Dunga Beach, Lake Victoria, Kenya
(AfricArXiv, 2022-06)Rastrineobola argentea (omena) is the second most important species in the fisheries of Lake Victoria after Nile perch. However, its fisheries have negative impacts on the ecology of the lake especially because of the high ... -
Promoting Sustainable Smallholder Aquaculture Productivity Through Landscape and Seascape Aquapark Models: A case Study of Busia County, Kenya
(Frontiers, 2022-06)The dwindling capture fisheries has triggered an increase in Kenya's annual fish demand deficit, currently estimated at 553,000 MT. With the adoption of sustainable policies, aquaculture can bridge and surpass this deficit. ... -
Black soldier fly (Hermetia illucens) larvae meal improves growth performance, feed utilization, amino acids profile, and economic benefits of Nile tilapia (Oreochromis niloticus, L.)
(AQUATIC RESEARCH, 2022-07)This study investigated the effect of replacing soybean meal (SBM) with black soldier fly larvae meal (BSFLM) on the growth performance, feed utilization, carcass body composition, and amino acids profile of Nile tilapia ... -
Biofloc system improves protein utilization efficiency and growth performance of Nile tilapia, Oreochromis niloticus fry: Experimental evidence
(John Wiley &Sons Ltd., 2022)This study evaluated the effect of biofloc technology (BFT) on protein utilization and growth performance of Oreochromis niloticus fry under green house for 14 weeks under a 3 × 2 factorial design involving three crude ... -
Culturing live foods for fish larviculture using non‐microalgal diet: The role of waste‐generated bacteria and selected commercial probiotics—A review
(Aquaculture, Fish and Fisheries, 2022)Condensed suspension of live microalga cells, for example, Chlorella vulgaris, Nannochloropsis oculata and Tetraselmis tetrathele is often utilized as diets for mass production of live food resources, that is, rotifers, ... -
Complete mitochondrial genome of the freshwater monogonont rotifer Brachionus rubens (Rotifera, Brachionidae
(Taylor & Francis, 2020)The two complete mitochondrial genomes were sequenced from the freshwater monogonont rotifer Brachionus rubens. The genome sequences were 12,041bp and 13,793bp in size, and the gene order and contents were identical to ... -
Population Biology of Nile tilapia (Oreochromis niloticus) in Lake Naivasha, Kenya
(Wiley, 2020)The Nile tilapia (Oreochromis niloticus) was introduced into Lake Naivasha to provide exploitable fisheries, being one of the commercially important fish providing livelihoods to communities around the lake. Its stocks ... -
Water hyacinth (Eichhornia crassipes) infestation cycle and interactions with nutrients and aquatic biota in Winam Gulf (Kenya), Lake Victoria
(Lake and reservoirs, 2021)Lake Victoria, like many other lakes in Africa, is affected by water hyacinth that reside in several bays for the majority of the year. The weed affects several economic activities of the local communities and denies revenue ... -
The impacts of introduced species on lake ecosystems: A case of Lakes Victoria and Naivasha, Kenya.
(2019)Fish and other aquatic organisms have been introduced into new environments for various reasons. Provision of sports fishery, supplemental to stocks, to fill empty niches, control weeds, and disease vectors and even create ... -
Some aspects of fish growth in Redbelly Tilapia (Coptodon zilli) and Largemouth Bass (Micropterus salmoides) in Lake Naivasha, Kenya
(Fisheries and Aquaculture Journal, 2020)Coptodon zilli and Micropterus salmoides were introduced into Lake Naivasha in 1929 and 1959 respectively. The reasons for introduction were to boost the fisheries and for recreational fishing respectively. However, the ... -
Perceived consumer preferences of fisheries products retailed in Kenyan markets
(Bioscience Research, 2020)Fish consumption in Africa is still low below the FAO recommended levels due to low production of fish compared to China and other Asian countries and Europe. The consumer food purchasing behavior is also highly affected ... -
The status of research on Lake Victoria fisheries: Historical and current data on fisheries and the lake environment
(AfricArXiv, 2019)Lake Victoria which is the second largest freshwater lake in the world supports a large population living around it through provision of food; fish and employment; both directly and indirectly. Due to its varied uses, ... -
Efficiency of pumpkin (Cucurbita pepo), sweet wormwood (Artemisia annua) and amaranth (Amaranthus dubius) in removing nutrients from a smallscale recirculating aquaponic system
(Springer International Publishing, 2019)In aquaponic systems, plants absorb dissolved nutrients from aquaculture wastewater for their growth. The removal of nutrients allows reuse of water and minimises wastewater discharge to the surrounding environment. This ... -
Saving the endangered Native Victoria Tilapia, Oreochromis variabilis Boulenger (1906), in Upper Victoria Nile
(National Agricultural Research Organisation, 2020)This study investigated the catch estimates, mortality, growth, food and feeding habits, and water parameters of Oreochromis variabilis in Upper Victoria Nile (UVN) from 2008 to 2019. Catch rates ranged 0.32±0.08 to ...