Faculty of Science & Technology (FST): Recent submissions
Now showing items 1041-1060 of 4283
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Primary production of a grassland in Nairobi National Park, Keny
(University of Nairobi, 1986)(1) Net aerial primary production of a grassland in Nairobi National Park was estimated using the harvest method in conjunction with estimates of mortality in the three most abundant grass species. (2) As a result of ... -
Diet of the largemouth bass, Micropterus salmoides (Lacepède), in Lake Naivasha, Kenya
(University of Nairobi, 2008-11)Abstract The major food items of adult largemouth bass, Micropterus salmoides (Lacepède), in Lake Naivasha, Kenya are not markedly different from those in its native range. Although insects and their larvae are major ... -
Recent changes in the fishery of a new tropical man‐made lake, Lake Kamburu (Kenya)
(University of Nairobi, 2006-01)Five years after inundation, two varieties of Cyprinus carpio—the common carp and the mirror carp, have appeared in the commercial fishery in Lake Kamburu. Species of Tilapia continue to remain the most abundant fish in ... -
An overview of aquaculture in eastern Africa
(University of Nairobi, 1992-04)Egypt, Kenya and Malawi, have the earliest recorded history of fish farming in eastern Africa, dating back to the beginning of the century. Between 1940 and 1960 aquaculture started in Rwanda, Uganda Zambia, Zimbabwe and ... -
Optical Properties and Raman Studies of Amorphous Se-Bi Thin Films
(University of Nairobi, 2014)Flash evaporated amorphous Se_____Bi_(x = 0, 1, 2, 3, and 4 at.%) thin films of 350 پ} 10__ thickness have been investigated in the wavelength range of 200nm − 3000nm. It is found that the effect of increasing bismuth ... -
The food, feeding habits and distribution of a siluroid catfish, Bagrus docmac (Forsskal), in the Kenya waters of Lake Victoria
(University of Nairobi, 2006-01)Adult Bagrus docmac in the Nyanza Gulf of Lake Victoria feeds mostly on fish–Haplochromis spp. and Engraulicypris argenteus (Pelligrin). Juveniles prefer aquatic benthic invertebrates with Phyllogomphus aethiop.?(K.elys), ... -
Species combination in tilapia culture
(University of Nairobi, 1982)Preliminary determinations for the best species combination for the fastest rate of growth of Tilapia nilotica (Saro therodon niloticus) and T. zillii indicated that T. nilotica grew better (1.3 g/day) when raised with T. ... -
Abnormal terns, sick sea and shore birds, organochlorines and arboviruses in the Indian Ocean
(University of Nairobi, 1977-07)It has been suggested that congenital abnormalities and defects of feather growth of young terns along the east coast of the USA may be due to organochlorine pollution. Similar abnormalities are also found in young terns ... -
Seasonal dynamics of suspended-sediment plumes from the Tana and Sabaki Rivers, Kenya: Analysis of landsat imagery
(University of Nairobi, 1984)Landsat imagery of the Kenya coast, in conjunction with meteorological, oceanographic, and river discharge data, was used to analyze coastal movement of suspended sediment from the Tana and Sabaki Rivers. The distribution ... -
Foraging behaviour of the giant leaf-nosed bat (Hipposideros commersoni)
(University of Nairobi, 1977-12)Observations of the giant leaf-nosed bat (Hipposideros commersoni) were made in southern Kenya, East Africa. This bat was present in the study area only in March and early April, at the beginning of the March to May rains, ... -
The Food Of The Nile Perch, Lates Niloticus (l.), After The Disappearance Of The Haplochromine Cichlids In The Nyanza Gulf Of Lake Victoria (kenya)
(University of Nairobi, 1988-04)After the disappearance of the haplochromine species in the Nyanza Gulf of Lake Victoria as a result of predation by Lates niloticus, the latter has turned its attention to aquatic invertebrates and other fish. Changes in ... -
Histological Studies On The Testis Of Tilapia Leucosticta And Other Species Of The Genus Tilapia (pisces: Teleoste)1
(University of Nairobi, 1969-04)ABSTRACT: Histological studies carried out on specimens of the cichlid fishes T. leucosticta, T. nigra, and T. zillii collected in the East African Rift Valley crater lake, Lake Naivasha reveal that various stages of ... -
The Impact of Real Exchange Rate Misalignment on Economic Growth; Kenyan Evidence
(University of Nairobi,, 2014)This paper examines Real Exchange Rate (RER) Misalignment on economic growth in Kenya by using Johansen Cointegration, and Error Correction Model Technique to establish the factors that determine equilibrium real exchange ... -
The Distribution Of Geophilic Dermatophytes In Kenyan Soils
(University of Nairobi, 1978)Two hundred and eighty one soil samples from different provinces of Kenya were examined for dermatophytes by the hair baiting technique. Dermatophytes were recovered from 84 samples. Microsporum gypseum constituted 75.8% ... -
Gonadal Development And Reproductive Activity Of The Cichlid Fish Tilapia Leucosticta (trewavas) In An Equatorial Lake
(University of Nairobi, 1969)THE most important external factors that influence gonadal development and reproductive activity are day length and temperature1. In temperate zones both factors show dramatic changes in the annual cycle. In the tropics, ... -
Methallibure studies on tilapia. III. Effects of tilapian partially purified pituitary gonadotrophic fractions on the testes of Methallibure-treated Sarotherodon spirulus (= Tilapia nigra)
(University of Nairobi, 1979-12)Tilapian fish Sarotherodon spirulus (= Tilapia nigra) were treated with the gonadotrophic inhibitor, methallibure, for 9 weeks during the last 2 of which they were divided into a control group and 8 experimental groups. ... -
Methallibure studies on Tilapia: II. Effect of tilapia pituitary homogenate (TPH), human chorionic gonadotropin (HCG) and testosterone propionate (TP) on the testes of Methallibure-treated Tilapia nigra
(University of Nairobi, 1974-07)In Methallibure-suppressed T. nigra testes high and low doses of TPH and HCG stimulate a qualitatively similar reactivation of spermatogenesis resulting in a significant elevation of testicular weight and G.S.I.; interstitial ... -
Effect of chorionic gonadotrophin on testicular histology and testosterone production in Tilapia leucosticta (Teleostei: Cichlidae
(University of Nairobi, 1970-10)Eight adult male T. leucosticta were given daily injections of 500 IU human chorionic gonadotrophin (Pregnyl, Organon) intraperitoneally for 1 week. These fish showed marked increases in testicular size, gonosomatic index, ... -
Regulation of plasma Na+ and K+ concentrations in five African species of Tilapia fishes
(1974-08)1. Five species of the genus Tilapia were collected from five localities in the vicinity of Nairobi, Kenya. Two species, T. alcalica and T. grahami, were obtained from concentrated “soda” lakes (Lakes Natron and Magadi ...