Search
Now showing items 41-47 of 47
The commercial fishery of the middle Nyong River, Cameroon: productivity and environmental threats
Type: Journal Article
Fishing methods, catches, fish species diversity, water quality and diets were examined in the middle Nyong River basin of south-central Cameroon over five years. Out of 79 indigenous species from the upper and middle Nyong ...
Farming fish to save water
Type: Journal Article
Author's comment on the farming of fish as a efficient means in terms of water use.
Relative Importance of Various Predators in Clarias gariepinus Fry Mortality in Cameroon
Type: Journal Article
To estimate the relative importance of the most common predators of Clarias gariepinus fry, increasing levels of protection were afforded to exclude amphibians, aquatic arthropods and birds. At a stocking density of 10 ...
Protocols for the development of indigenous species: polyculture of indigenous species under Malawian smallholder conditions
Type: Journal Article
Shire tilapia, Oreochromis shiranus shiranus (Boulenger 1897), was grown in monoculture and polyculture with either straightfin barb, Barbus paludinosus (Peters 1852), or threespot barb, Barhus trimaculatus (Peters 1852), ...
Intensity and profitability of Clarias nursing systems in periurban Yaoundé, Cameroon
Type: Journal Article
To target development efforts, the technological options for investments in Clarias gariepinus hatchery systems were compared for cost, average weight, number of fingerlings harvested, survival and profitability in periurban ...
The evolution of aquaculture in African rural and economic development
Type: Journal Article
In Africa, aquaculture has developed only recently and so far has made only a small contribution to economic development and food security. We review developments and identify constraints to the expansion of aquaculture ...
Towards the maximum profitability of smallholder catfish nurseries: predator defense and feeding-adapted stocking of Clarias gariepinus
Type: Journal Article
To determine how best smallholders could maximize the profitability of their catfish hatcheries, the cost/benefit analyses of using fences, hapas and bird nets to exclude predators; as well as over-stocking to create food ...