The goal of this study is to analyze the economic and social determinants of production boards. An investigation was conducted among 50 operators. Taking into consideration the nature of the data collected, we estimated an econometric model. Our findings show that economic variables influence 79.6% of production and social variables influence at 9%. Sensitivity analysis of this probability shows that economic variables have the highest marginal effects on the exploitation of wood that social variable.
In front a relevant problem for the immediate spontaneous occupation (wild and accelerated) of Kivu Lake's shore, therefore authorities of the town have a great work to do. As some people in the area do not respect the length of ten meters of the town planning rules. Nowadays, the shore is attacked by a lot of anarchic building which do not respect the town planning rules to save ten meters for building near the Kivu Lake's shore. This is really a disaster!
The present work was to study the diet of Lamprichthys tanganicanus, a new species observed in Lake Kivu. Fish were caught from 12 to 13 August 2007 and 23 January to 22 March 2012 in the coastal of Bukavu basin during a 24-hour cycle using gillnets and beach seine. Stomach contents were analyzed and identified. The index of occurrence, abundance, volumetric and food were calculated. The results obtained indicate that L. tanganicanus feeds to 99.4% of zooplankton (Copepods, 86.54%, Cladocera-11.43% and Rotifera-2.03%), to 0.25% of phytoplankton (Diatoms), to 0.13% of insects and to 0.22% of prey unidentified. Zooplankton constitutes the major prey (IA=53.59%) although its degree of importance varies according to gender of L. tanganicanus (male: IA=48.81% and female: IA=57.72%). Other preys are of secondary importance (IA˂ 10). This fish is zooplanktivorous giving it a diet similar to that of Limnothrissa miodon.
The November 2009 and February 2010 flood waters of the River- fatal, devastating and historical with return estimated to 49 years- are the result of heavy rainfall in the side basins, the nature of the soil and the taken materials together with the presence of numerous ponds in the major bank/ bed of the Kibe River, although inhabited.
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