This work consists of contributing to the study of the phytodiversity of trees in the monodominant forest of YASIKIA, 31 km OPALA road RD Congo, specifically we wanted to know the richness of trees in this forest, analyze its floristic composition and structure by studying the specific abundances of trees structuring this forest. We proceeded to set up a 5 km or 5000 m transect in a North-South direction of the forest where emerging woody plants are well represented, crossing all topographic levels. 20 square plots of 50 mx 50 m were delimited on either side along the transect. We measured and identified all trees with DBH ≥ 10 cm at a height of 1.30 m from the ground, above the buttresses of the stilt roots. We calculated the diversity indices: Simpson, Shannon-weaver and Fisher alpha. After our field investigations, we inventoried 1573 tree individuals divided into 99 species, 88 genera and 30 families. The most abundant species overall are: Gilbertiodendron dewevrei with 303 plants, Scorodophloeus zenkeri with 153 plants, Cola griseiflora with 86 plants, Pancovia hamsiana with 80 plants, Polyathia suaveolens with 57 plants, Julbernadia sereti with 56 feet, Staudtia kamerunensis and Strombosia pustulata each with 55 feet, Cynometra sessiliflora with 45 feet, Guarea cedrata with 31 feet, Cleistanthus mildbraedi, Diospyros bipendensis and Diospyros crassiflora each with 30 feet.

This study evaluates the impact of physicochemical parameters on aquatic insect diversity of Fateh Sagar Lake by assessing water quality across five sampling sites. Physicochemical parameters such as temperature, pH, total hardness (TH), total dissolved solids (TDS), dissolved oxygen (DO), biochemical oxygen demand (BOD), and chemical oxygen demand (COD) were analyzed. The results indicated that while most physicochemical parameters remained within permissible BIS/ICMR standards, Site 5 exhibited signs of pollution with higher BOD and COD levels and lower DO. A total of 3668 aquatic insects from 65 species, categorized under 37 families and five orders, were recorded. The BMWP and ASPT indices were employed for biological assessment, revealing good water quality at Sites 1-3, moderate conditions at Site 4, and significant degradation at Site 5, where no aquatic insects were found. Statistical correlations highlighted the importance of DO in species composition and the influence of physicochemical factors on aquatic biodiversity. This study underscores the necessity of regular monitoring and conservation efforts to mitigate anthropogenic impacts on Fateh Sagar Lake.

The increasing intensification of the exploitation of fishery resources in Africa in general and in Côte d'Ivoire in particular, associated with the processes of degradation of the natural environment, pose real risks of regression, disappearance of species and reduction of fish production. So, knowledge of fishing parameters is very important in the strategy implemented by managers of this sector on Ivorian rivers and bodies of water. Thus, the composition of catches, fishing effort and fishing gear production were studied in the Bandama River from July 2023 to June 2024. The data was collected by experimental fishing with gillnets and traps to which fishing data were added artisanal fishing carried out during the sampling days. A total of 41 species belonging to 5 orders and 13 families of fish with a biomass of 18896 kg were identified. Siluriformes (44%) and Perciformes (26%) were dominant. The highest fishing efforts and CPUEs were obtained with gillnets and papolo traps. The values were maximum in the rainy season. Annual production was 7285.74 Kg for the gillnets and 5066.53 Kg for the papolo traps. The results of this study revealed that fish from the Bandama River at Lamto are overexploited. This constitutes a basic element for decision-making in the quest for a protection and conservation strategy of the fishing resources of this protected area in Côte d’Ivoire.

The tilapia Sarotherodon melanotheron is a fish species widely used in African fish farming due to its high market demand. It represented a significant proportion of the fish fauna in Taabo manmade lake in particular. However, the stock of this fish is facing parasitic infestation which deteriorates it considerably. In addition, there is no data on the parasitic epidemiology of this fish in this environment. These data are essential to finding strategies to avoid huge fish losses in the natural and the breeding environment. From March 2023 to April 2024, 1107 specimens of S. melanotheron were captured in this lake in order to study some aspects of their gill monogenean parasites. After host sampling and parasites mounting standard methods of parasitological examination were used for identification of monogenean species. Gill helminthofauna of this fish consisted of Cichlidogyrus acerbus, C. halli, C. halinus, C. lagoonaris and Scutogyrus minus. The fish captured in Ahondo station were the most infested. The infestation exhibited seasonal fluctuation with the maximum parasite species were recorded in the rainy seasons and the minimum one in the dry seasons. It was observed that the sex of this fish have an influence on parasitism infestation. These results could help to improve the productivity of this fish.

With the intensification of population aging, the integrated medical and elderly care industry has gradually become the focus of social attention. Baoding City, as an important node in the Beijing-Tianjin-Hebei coordinated development, faces new opportunities and challenges in the development of the medical and elderly care industry. This paper aims to explore how to promote the construction of a resilient medical and elderly care industry system in Baoding City, proposing specific strategies from four aspects: policy support, service system, technological innovation, and talent cultivation. By analyzing the current status of the medical and elderly care industry in Baoding and combining successful domestic and international experiences, this paper constructs a resilient medical and elderly care industry system with regional characteristics, providing a reference for the development of the medical and elderly care industry in Baoding and even nationwide.