Conséquences socio-économiques de l’expulsion des pêcheurs étrangers en Côte d’ivoire : lacs d’Amyame et de Buyo

Nos sincères remerciements au Professeur Germain Gourène, Vice-Président de l’Université d’Abobo-Adjamé et Responsable du Laboratoire d’Environnement et de Biologie Aquatique de l’Université d’Abobo-Adjamé, pour sa contribution à la rédaction de ce manuscrit. Dans l’Afrique ancienne, les valeurs socioculturelles en vigueur favorisaient une intégration des populations dans leur milieu d’origine ou d’accueil. Le système social et économique a souvent entraîné des mouvements de populations aussi..

Facteurs De L’adoption Et De L’abandon Du Coton Et De L’anacarde Dans Le Departement De Sinematiali (Nord De La Cote D’ivoire)

Le développement de la culture du coton dans le nord du pays par l’Etat de Côte d’Ivoire visait à lutter contre les disparités régionales, à réduire l’exode rural et la pauvreté. Quant à la vulgarisation de l’anacarde, elle répond à un souci de diversification des revenus des producteurs, quoiqu’introduit, au départ, en tant qu’essence forestière pour lutter contre la désertification. Le présent article se propose de déterminer les différents facteurs influençant l’adoption et l’abandon du coton et de l’anacarde dans le département de Sinematiali Les producteurs du coton et de l’anacarde poursuivent des enjeux basés sur la satisfaction des besoins socioéconomiques et nutritionnels, qui sont influencés par un certain nombre de facteurs, tant favorables que défavorables ; autrement dit, des facteurs de l’adoption et de l’abandon. Relativement aux facteurs de l’adoption, facteurs ont été évoqués. Il s’agit des facteurs économiques, sociaux, environnementaux, des facteurs liés à l’encadrement ainsi que d’autres facteurs de considérations distinctes. Pour ce qui est des facteurs de l’abandon, trois  facteurs, qui se rapportent aux aspects économiques, aux aspects liés aux pratiques culturales et aux aspects divers, ont permis d’expliquer ce phénomène. Au plan méthodologique, l’article s’appuie sur une approche mixte (qualitative que quantitative), à visée compréhensive et  axée sur la recherche documentaire, l’observation directe, les entretiens semi-directifs ainsi que sur les enquêtes. The development of cotton growing in the north of the country by the state of  Côte d’Ivoire aimed at fighting against regional disparities, reducing rural exodus and poverty. As for the vulgarisation of  cashew nuts, it responds to a matter of diversification of the producers’ incomes, whatever introduced at the beginning as a forest essence to fight against desertification. The concurrent article aims to determine the different factors influencing the adoption and the abandonment of the cotton and the cashew nut in the area of Sinematiali. The producers of the cotton and the cashew nut pursue purposes  based on the satisfaction of socio-economic and food needs influenced by a certain number of factors, both favorable and unfavorable, in other words, the factors of the adoption and the abandonment. Relatively to the adoption, five factors have been evoked : there are economic, social and environmental factors, factors linked to the supervision as well as other factors of distinct consideration. As for the abandonment,  three  factors  related to economic aspects, aspects linked to cultural practices and diverse aspects have enabled to explain this phenomenon. The current article aims to determine the different factors influencing the adoption and the abandonment of the cotton and the cashew nut  in the area of Sinematiali. Methodologically, the article is based on a mixed approach, (qualitative and quantitative) comprehensive target and focused on documentary research, direct observation, semi-direct interviews as well as surveys through questionnaires

Performances Économiques Comparées Des Unités De Pêche En Lagune Et Des Alternatives Agricoles Et Aquacoles À Grand-Lahou (Côte d’Ivoire)

The lagoons are high biological and economic potential areas exploited by thousands of fishermen. Otherwise, the persistent use of pesticides in fisheries may be perceived as a response of fishermen to lower yields and, consequently, to reduced income from fishing activities. In this context, the hypothesis of a lack of profitability concerning the activity of professional fishermen was therefore raised. To reach this goal, a market survey, investments and fish landings were carried out in order to analyze the profitability and economic performance of this activity. It recorded 5227 catch exits from a sample of 35 fixed fishermen in 7 villages. These were followed 15 times a month for 12 months whenever possible. In practice, approximately 60% of the suspected activity of professional fishermen has been observed. After elaborating the annual operating accounts and calculating the performance ratios, it appears that the lagoon fishing activity of Grand-Lahou is profitable and competitive compared to the alternative economic activities of the study area. However, performance is not homogeneous between villages. This suggests a fishing-related effect on fishers' performance. In addition, it is the Liza falcipinnis and Chrysichthys nigrodigitatus species that significantly influence the value of production and hence income

Etude Des Determinants Socioeconomiques Et Techniques De La Psciculture Extensive En Cote D’ivoire

The contribution of fish farming is relatively low in the national consumption of fish products. Yet the country has a significant socio-natural potential, which well valued can reduce fish imports and enhance food security. This study, based on a survey conducted in the two main areas of extensive fish farming (Central West and Southwest), was to analyze the technical and socioeconomic determinants of family fish farming to support the dynamic development of this activity. The results showed that 98% of fish farmers are men of 51 to 60 years old. Most of them are illiterate practicing agriculture as their main activity. Farming infrastructure are usually composed of dams ponds (90%) of 0.25-1.5 ha, and ponds of 0.1 ha. Water was provided either by river (95%) or groundwater (5%). On average most farms are of mall size (3 ha) and were acquired by purchasing lands. Fish farmers mainly practiced mixed farming of Tilapia (Oreochromis niloticus) and Heterotis (Heterotis niloticus). In 60% of the cases, fish farming is associated with rice cultivation practiced in the shallows. Fish were mainly fed with rice bran. An important number of farmers (72%) practiced sexing of in order to improve their yields. Furthermore, 60% of them have a lower production to 6 tons per year, and fish were old between 1500 and 2000 CFA (1 FCFA=0,0014 euros) per kg leading to an average annual income of less than 5 million CFA francs

Leveraging data science and machine learning for urban climate adaptation in two major African cities: a HE 2 AT Center study protocol

Introduction: African cities, particularly Abidjan and Johannesburg, face challenges of rapid urban growth, informality and strained health services, compounded by increasing temperatures due to climate change. This study aims to understand the complexities of heat-related health impacts in these cities. The objectives are: (1) mapping intraurban heat risk and exposure using health, socioeconomic, climate and satellite imagery data; (2) creating a stratified heat–health forecast model to predict adverse health outcomes; and (3) establishing an early warning system for timely heatwave alerts. The ultimate goal is to foster climate-resilient African cities, protecting disproportionately affected populations from heat hazards. Methods and analysis: The research will acquire health-related datasets from eligible adult clinical trials or cohort studies conducted in Johannesburg and Abidjan between 2000 and 2022. Additional data will be collected, including socioeconomic, climate datasets and satellite imagery. These resources will aid in mapping heat hazards and quantifying heat–health exposure, the extent of elevated risk and morbidity. Outcomes will be determined using advanced data analysis methods, including statistical evaluation, machine learning and deep learning techniques. Ethics and dissemination: The study has been approved by the Wits Human Research Ethics Committee (reference no: 220606). Data management will follow approved procedures. The results will be disseminated through workshops, community forums, conferences and publications. Data deposition and curation plans will be established in line with ethical and safety considerations

Protocol of an individual participant data meta-analysis to quantify the impact of high ambient temperatures on maternal and child health in Africa (HE 2 AT IPD)

Introduction: Globally, recognition is growing of the harmful impacts of high ambient temperatures (heat) on health in pregnant women and children. There remain, however, major evidence gaps on the extent to which heat increases the risks for adverse health outcomes, and how this varies between settings. Evidence gaps are especially large in Africa. We will conduct an individual participant data (IPD) meta-analysis to quantify the impacts of heat on maternal and child health in sub-Saharan Africa. A detailed understanding and quantification of linkages between heat, and maternal and child health is essential for developing solutions to this critical research and policy area. Methods and analysis: We will use IPD from existing, large, longitudinal trial and cohort studies, on pregnant women and children from sub-Saharan Africa. We will systematically identify eligible studies through a mapping review, searching data repositories, and suggestions from experts. IPD will be acquired from data repositories, or through collaboration with data providers. Existing satellite imagery, climate reanalysis data, and station-based weather observations will be used to quantify weather and environmental exposures. IPD will be recoded and harmonised before being linked with climate, environmental, and socioeconomic data by location and time. Adopting a one-stage and two-stage meta-analysis method, analytical models such as time-to-event analysis, generalised additive models, and machine learning approaches will be employed to quantify associations between exposure to heat and adverse maternal and child health outcomes. Ethics and dissemination: The study has been approved by ethics committees. There is minimal risk to study participants. Participant privacy is protected through the anonymisation of data for analysis, secure data transfer and restricted access. Findings will be disseminated through conferences, journal publications, related policy and research fora, and data may be shared in accordance with data sharing policies of the National Institutes of Health. PROSPERO registration number: CRD42022346068

Accès au foncier relatif à la pisciculture familiale au Centre-Ouest et au Sud-Ouest de la Côte d’Ivoire

Le contexte combinant saturation foncière sur fond de marchandisation imparfaite de la terre, prise de valeur des bas-fonds et regain d’engouement pour la pisciculture familiale au Centre-Ouest (C.-O.) et au Sud-Ouest (S.-O.) de la Côte d’Ivoire complexifie le mécanisme acquisitif et conservatoire de droits portant sur le foncier piscicole. La présente étude s’est effectuée auprès de 213 pisciculteurs dont 142 au C.-O. et 71 au S.-O. ainsi que 34 acteurs fonciers non pisciculteurs en se proposant de décrire les modes d’accès au foncier piscicole dans ces deux régions. Il en résulte que, dans des proportions variables, divers modes sont adoptés pour l’accès au foncier piscicole. Ce sont le don, l’achat, l’héritage et le faire-valoir indirect (FVI) au travers desquels les pisciculteurs se garantissent des droits d’exploitation pérennes sur leurs sites de production.The context combining land saturation on the backdrop of imperfect commodification of the land, appreciation of lowlands and renewed enthusiasm for family fish farming in Central-West (CW) and Southwest (SW) of Côte d'Ivoire complicates the acquisitive and conservative mechanism of rights relating to fish farm land. This study was conducted with 213 fish farmers of whom 142 in the CW and 71 at SW as well as 34 non-fish farmer actors by proposing to describe the access modes to fish farm land in these two regions. As a result, in varying proportions, different modes are adopted for access to fish farm land. These are the donation, the purchase, the inheritance and the indirect farming (IF) through which the fish farmers guarantee perennial exploitation rights on their production sites