Search results
Results from the WOW.Com Content Network
[Note 3] The second impact was the Nile perch's devastation of the haplochromine species flock, its main food source. Catches of this species crashed. The third impact related to the lake's diminutive endemic silver cyprinid, the dagaa. Freed from competition (with haplochromine species) for food sources, this species thrived.
Stewart K M (1989) Fishing Sites of North and East Africa in the Late Pleistocene and Holocene. Volume 34 of Cambridge monographs in African archaeology. Stewart KM (1994) "Early hominid utilisation of fish resources and implications for seasonality and behaviour" Journal of Human Evolution , 27 : 229–245.
Fishing gear and methods used in Uganda. Fishing gear and methods used in Uganda are both modern and traditional. Fish in Uganda are caught mostly with plank canoes and to a lesser extent, fiberglass boats. Some dugout canoes are also still being used. The plank canoes are generally 4–12 m (13.12–39.37 ft) in length and dugout canoes ...
Sub-Saharan African countries spent on average 0.3% of their GDP on S&T (Science and Technology) in 2007. This represents a combined increase from US$1.8bn in 2002 to US$2.8bn in 2007. North African countries spend a comparative 0.4% of GDP on research, an increase from US$2.6bn in 2002 to US$3.3bn in 2007.
Illegal, Unreported, and Unregulated (IUU) Fishing poses a global challenge and has significant economic and environmental repercussions. [5] The impact of IUU fishing includes economic losses, job losses, scarcity, price distortion, food insecurity and unfair competition, [6] together with the depletion of fish populations and damages to the marine habitat. [7]
Fishing techniques are methods for catching fish. The term may also be applied to methods for catching other aquatic animals such as molluscs (shellfish, squid, octopus) and edible marine invertebrates. Fishing techniques include hand-gathering, spearfishing, netting, angling and trapping.
A fishery is socially sustainable if the fishery ecosystem maintains the ability to deliver products the society can use. Major species shifts within the ecosystem could be acceptable as long as the flow of such products continues. [2] Humans have been operating such regimes for thousands of years, transforming many ecosystems, depleting or ...
Journal of Eastern African Studies. The Journal of Eastern African Studies is a quarterly peer-reviewed academic journal covering research on the Eastern African region. It was established in 2007 and is published by Routledge on behalf of the British Institute in Eastern Africa .