Utafutaji Journal Articles Kwa tarehe ya kutolewa kitabu
Now showing items 1-20 ya 51
-
Macroinvertebrate functional feeding groups in Kenyan highland streams: evidence for a diverse shredder guild
(The Society for Freshwater Science, 2014-02)Data on the functional composition of invertebrates in tropical streams are needed to develop models of ecosystem functioning and to assess anthropogenic effects on ecological condition. We collected macroinvertebrates ... -
Litter processing and shredder distribution as indicators of riparian and catchment influences on ecological health of tropical streams
(Ecological Indicators, 2014-05)Terrestrial plant litter is the main source of energy for food webs in forest headwater streams. Leaf litter quality often changes when native tree species are replaced by exotic ones and land use change in the watershed ... -
Are Large Herbivores Vectors of Terrestrial Subsidies for Riverine Food Webs?
(Springer Science+Business Media New York, 2015-03-17)The tropical savannas of Africa have witnessed a dramatic reduction in native large mammalian herbivore populations. The consequences of these changes for terrestrial-aquatic food-web linkages are poorly documented. ... -
Genetic identification of invasive walking catfish, Clarias batrachus, intermingled with African catfish, C. gariepinus, in South Africa
(African Journal of Wildlife Research 45(1): 55–62 (April 2015), 2015-04)Molecular genetic techniques were used to determine the identity of two catfish individuals that could not be identified as indigenous Clarias gariepinus after phenotypic analysis. The unidentified catfish were compared ... -
High genetic diversity and population differentiation in Clarias gariepinus of Yala Swamp: evidence from mitochondrial DNA sequences
(Journal of Fish Biology (2016) 89, 2557–2570, 2016-07)In order to improve the conservation and sustainable utilization of the African catfish Clarias gariepinus of the Yala Swamp in Kenya, genetic diversity and population structure of Lakes Kanyaboli and Namboyo populations ... -
Use of macroinvertebrate assemblages for assessing performance of stabilization ponds treating effluents from sugarcane and molasses processing
(Springer, 2017)Wastewater discharge from sugarcane processing is a significant pollutant of tropical aquatic ecosystems. For most developing countries, monitoring of the level of pollutants is done mostly through chemical analysis, but ... -
Genetic diversity and population structure of the African catfish, Clarias gariepinus (Burchell, 1822) in Kenya: implication for conservation and aquaculture
(Belgian Journal of Zoology, 2017)African catfish, Clarias gariepinus, is an important species in aquaculture and fisheries in Kenya. Mitochondrial D-loop control region was used to determine genetic variation and population structure in samples of C. ... -
Influence of catchment land use and seasonality on dissolved organic matter composition and ecosystem metabolism in headwater streams of a Kenyan river
(Biogeochemistry An International Journal, 2017-01)Headwater streams influence the biogeochemical characteristics of large rivers and play important roles in regional and global carbon budgets. The combined effects of seasonality and land use change on the biogeochemistry ... -
GROWTH AND SURVIVAL ON EXPOSURE TO LAMBDA CYHALOTHRIN AND AFLATOXINS OF DIETARY FISH FROM SELECTED AQUATIC SOURCES IN KENYA
(Journal of Advance Research in Food, Agriculture and environmental science, 2018)Toxicants cause a wide range of concerns in the health of fish. The specific objectives of the study were determine aberration of growth and survival as an iron indicator on exposure to lambda cyhalothrin and aflatoxins ... -
Effect of Replacing Fish Meal by Soybean-Blood Meal Mixture on Performance of Tilapia (Oreochromis Niloticus)
(THE INTERNATIONAL JOURNAL OF SCIENCE & TECHNOLEDGE, 2018)Commercial fish feeds are highly expensive and unaffordable to majority of fish famers, usually fish meal which is scarce and expensive is used in compounding fish feeds. A fourteen-week study was done to determine growth ... -
Influence of Rainfall Seasonality onEndohelminth Parasites of Oreochromisniloticusbaringoensis (Trewavas, 1983) at River Molo Inlet in Lake Baringo, Rift Valley, Kenya
(Journal of Aquatic Science and Marine Biology, 2018)This study was conducted at the inlet of River Molo in Lake Baringo, Kenya during dry and wet seasons.Dissolved oxygen, temperature, turbidity and pH were measured in-situ.Fish samples collected werepreserved ... -
Aberrationof Metals Competing for Iron on Exposure to Lambda Cyhalothrin and Aflatoxins in Dietary Fish from Selected Aquatic Sources in Kenya
(Food Science and Nutrition Studies, 2018)Excess or deficiency of minerals may seriously disturb biochemical processes and upset internal homeostasis, leading to various diseases and disorders in fish species due to deficiency or excess ... -
Shifts in the food of Nile perch (Lates niloticus) in Lake Victoria
(Journal of Lake and Reservoirs, 2018)The study investigated diet of Nile perch in Lake Victoria and compared results with past data from the same lake in order to analyse diet shifts over time. Fish samples (2020) were collected by seining and trawling from ... -
Assessment of theFisheries Status in River Molo to Guide the Management on its Fisheries
(African Journal of Education, Science and Technology, 2018)Rivers provide a suite of ecosystem goods and services to fisheries as well as water that benefit the domestic and industrial use of the riparian communities. The increasing intensification of ... -
EFFECTS OF BIOFLOC TECHNOLOGY ON GROWTH PERFORMANCE OF NILE TILAPIA (Oreochromis Niloticus)FINGERLINGS AND MICROBIAL COLONIZATION IN THE SYSTEM.
(International Journal of Agriculture, Environment and Bioresearch, 2018)Aquaculture intensification is characterized by high stocking density and need of high quality and quantity of artificial feed. Increased fish biomass and feed input brings about rapid deterioration ... -
Colonization patterns of benthic macroinvertebrates in fertilized and non-fertilized earthen fi sh ponds
(International Journal of Aquaculture and Fishery Sciences, 2018)International Journal of Aquaculture and Fishery SciencesISSN: 2455-8400CC By022Life Sciences Group Citation: Orwa PO, Omondi R, Chemoiwa EJ (2018) Colonization patterns of benthic macroinvertebrates in fertilized and ... -
Trophic structure of an African savanna river and organic matter inputs by large terrestrial herbivores: A stable isotope approach
(John Wiley & Sons Ltd ; Freshwater Biology., 2018-06). Knowledge of trophic structure is important to understand sources and pathways of energy resources in community ecology and to identify determinants of ecosystem changes. Yet, little is known from rivers of African ... -
Shifts in the food of Nile perch (Lates niloticus) in Lake Victoria
(John Wiley & Sons Australia, Ltd, 2018-11)The study investigated diet of Nile perch in Lake Victoria and compared results with past data from the same lake in order to analyse diet shifts over time. Fish samples (2020) were collected by seining and trawling from ... -
Assessment of Duckweed Supplement Diet to Fishmeal on the Growth Performance of Oreochromis niloticus Fingerlings
(AER Journal, 2019)Oreochromis niloticus is the most cultured fish in tropical freshwater aquaculture systems and second most cultured fish after carps in the world. In Kenya, Oreochromis niloticus has potential in eradicating hunger and ... -
Biological aspects of Schilbe intermedius (Ruppell, 1832) in the Nyanza Gulf of Lake Victoria, Kenya
(Lakes & Reserv, 2019)Silver butter catfish (Schilbe intermedius) is an indigenous fish species in Lake Victoria. It has a good economic value because of the quality and freshness of its flesh, in creasing its demand for consumption. It is ...
