A5021709315- African Botany and Ecology Studies
- Agriculture and Rural Development Research
- Aquaculture Nutrition and Growth
- Crustacean biology and ecology
- Cocoa and Sweet Potato Agronomy
- Marine and fisheries research
- Genetic diversity and population structure
- Plant biochemistry and biosynthesis
- Ecology and Vegetation Dynamics Studies
- Botanical Research and Applications
- Wildlife Ecology and Conservation
- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Identification and Quantification in Food
- Botany and Plant Ecology Studies
- Primate Behavior and Ecology
- Agroforestry and silvopastoral systems
- Seed and Plant Biochemistry
- Horticultural and Viticultural Research
- Amphibian and Reptile Biology
- Forest ecology and management
- Polysaccharides Composition and Applications
- Microbial Metabolites in Food Biotechnology
Institut de Recherche Agricole pour le Développement
2012-2023
Université de Yaoundé I
2016
Le défi actuel des acteurs de la filière cacao au Cameroun est trouver stratégies pour augmenter production en cabosses matures et mûres systèmes agroforestiers à base cacaoyers (SAFc) camerounais afin mieux répondre forte demande mondiale fève cacao. L’objectif cette étude était caractériser diversité évaluer dendrologie variantes identifiées dans un SAFc zone forêt dense humide camerounaise. Un inventaire d’aménagement forestier a été fait du 02 septembre 25 octobre 2020 collecter les...
Abstract Macrobrachium (Bate, 1868) is a large and cosmopolitan crustacean genus of high economic importance worldwide. We investigated the morphological molecular identification freshwater prawns in South, South West, Littoral regions Cameroon. A total 1,566 specimens were examined morphologically using key described by Konan (Diversité morphologique et génétique des crevettes genres Atya Leach, 1816 Bate, 1868 de Côte d'Ivoire, 2009, Université d'Abobo Adjamé, d'Ivoire), leading to seven...
The African River prawn Macrobrachium vollenhovenii is the largest of local Palaemonidae prawns along Cameroonian coast and an important target species for fisheries aquaculture. A preliminary study on larviculture this was carried out at IRAD-AQUASOL hatchery in Kribi, Cameroon. Berried females M. were obtained from Lobe Lokoundje Rivers Southern Region, typical Lower Guinea rainforest streams. larval rearing system consisted a single recirculation four 65 L cylindrical plastic containers...
Au Cameroun, l’exploitation du bois a entraîné la réduction couvert forestier et son appauvrissement en espèces de d’oeuvre. Pour remédier à cette situation, nombreuses plantations forestières ont été crées, puis abandonnées quelques décennies plus tard pour des raisons diverses, ce qui n’a pas permis capitaliser l’ensemble connaissances sylvicoles escomptées devaient permettre réhabiliter les forêts limiter risques d’épuisement stocks d’essences commerciales. Le dispositif sylvicole...
Pericopsis elata is a timber tree with high commercial value used as hardwood in the Congo basin forest. It considered threatened species by International Union for Conservation of Nature (IUCN) and classified 1992 annex II Convention on Trade Endangered Species Wild Fauna Flora (CITES). The natural regeneration P. problematic; an increase knowledge concerning its ecology, productivity, potentials could significantly contribute to sustainable exploitation improve silviculture.
Prunus africana (Hook. f.) Kalkman est une plante médicinale Afro montagnarde dont l’exploitation de l’écorce obéit à un mode gestion bien défini au Cameroun. La présente étude visait faire état lieux cette espèce dans la Région l’Adamaoua. Les données sur l’état et les paramètres croissance ont été collectées du 5 20 décembre 2020 406 tiges écorcées en 2014 2015 deux sites. Pour chaque tige trouvée, latitude, longitude l’altitude précisées. Le diamètre hauteur poitrine, épaisseurs mesurées...
Abstract Official protection of an exploited species sometimes precedes any quantitative understanding its use, including dependence local residents on it for food and livelihood. Conservation initiatives could suffer without this information. The Goliath frog Conraua goliath is iconic globally because large size, categorized as Endangered the IUCN Red List. main threat to in Cameroon overexploitation, but associated socio-economic aspects have not been quantified. We provide insights into...
An experiment was conducted to evaluate the reproductive performance and offspring quality of Macrobrachium vollenhovenii broodstock fed four diets: commercial maturation feed (control, T0), maggot (T1), fresh mackerel (T2) locally formulated (T3). Spent M. experimental diets their performances were evaluated in phase one experimentation. In two a recirculation system with three replicates per treatment (TL0, TL1, TL2 TL3) for 30 days. The duration gonadal development significantly different...
Single Nucleotide Polymorphisms ( SNPs ) are now popular for a myriad of applications in animal and plant species including, ancestry assignment, conservation genetics, breeding, traceability products. The objective this study was to develop customized cost-effective SNP panel genetic characterisation Macrobrachium Cameroon. identified previous characterization were screened as viable candidates the reduced panel. Starting from full set 1,814 SNPs, total 72 core chosen using conventional...
The protocol of culture Macrobrachium vollenhovenii the main indigenous candidate for freshwater prawn in Africa is still under study. Though just few information exists, transition larvae from stage V to VI has been reported as critical rearing period larviculture. This study was evaluate efficiency two locally diets supplement Artemia feeding scheme post larviculture this species. experimental were differentiated by source protein: fish silage (Diet 1) and shrimp meat 2). One batch...
Gnetum africanum Welw. is a plant specie of Central and West Africa, Non Timber Forest Product (NTFP) with high nutritional, medicinal economic value. In Cameroon, its leaves are recognized by the forestry administration as special product. Strong demand combined destructive harvesting techniques has resulted in rarity distribution area. The objective this work to characterize trade G. africanaum, assess abundance (density structure) order appreciate value Lehman agroforest system (ALM)...
Le « SAPA » (Dioscorea praehensilis Benth) est une espèce dont les liens socio-culturels conservés avec Baka ne sont plus à démontrer. Son utilisation dans cette zone passe par plusieurs traitements culinaires (ébullition, braise…) qui affecte certaines propriétés jusqu’ici non encore élucidées. présent travail était axé sur la valorisation de D. au Cameroun l’étude l’effet quelques ses physico-chimiques, fonctionnelles et anti-oxydantes. matériel végétal (échantillons cru, bouilli, braisé...
This paper assesses the response of Pericopsis elata trees to silvicultural operations conducted in abandoned plantations settled between 1972 and 1975 East South regions Cameroon. Trees quality DBH were evaluated before 6 years after 2009 thinning. The treatment thinning improved (physiognomy), annual diameter increment stand basal area trees. average percentage winding dropped from 82.8% 44.1%, six later (2015). most important diameters observed thinned plots (27.3 ±10.4 cm -...
Cocoa is a major cash crop in Cameroon, where its production and export contributes significantly to the national economy poverty alleviation. Cocoa-based agroforestry systems (cAFS) have been recognised as fair strategy for natural resource management, combining both agricultural conservation objectives. This study aims (1) assess diversity, (2) analyses floristic structural characteristics well (3) dendrological features of (Exploitation Agricole Betti) (EAB), cAFS vast 120 ha, located...
This research, conducted in the tropical rainforest, is focused on restoration of tree diversity through natural regeneration mechanism 49 year-old Mangombe forest plantation. 12 plots were surveyed, 6 with large transects and others under regrowth. In each plot, two subplots 400 m² demarcated for inventory all stems diameter greater than 2.5 cm. A total 2239 comprising 107 species distributed 93 genera 42 families identified over 9600 m². There was a slight difference between richness...
Abstract Single Nucleotide Polymorphisms ( SNPs ) are now popular for a myriad of applications in animal and plant species including, ancestry assignment, conservation genetics, breeding, traceability products. The objective this study was to develop customized cost-effective SNP panel genetic characterisation Macrobrachium Cameroon. identified previous characterization were screened as viable candidates the reduced panel. Starting from full set 1,814 SNPs, total 72 core chosen using...