Abdullah Al Nahian, Director of the BCFRC

Abdullah Al Nahian, as the Director of the BCFRC (Biodiversity Conservation and Fisheries Research Center), is likely involved in initiatives related to nature research, conservation, and sustainable practices. Leaders in such roles typically focus on advancing scientific knowledge, conducting research on biodiversity, and promoting conservation efforts in ecosystems. He is graduated from the University of Chittagong, Chittagong, Bangladesh.

His research interest in Biotechnology, Molecular biology, Pollutants, Biota, Genetics etc.

BCFRC : World Wildlife Day 2025

World Wildlife Day is celebrated on March 3rd each year to raise awareness about the world's wild animals and plants and to highlight the importance of wildlife conservation. The day also commemorates the signing of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) in 1973.

Each year, World Wildlife Day has a specific theme that focuses on issues affecting wildlife and their habitats. Events and activities, such as educational programs, wildlife protection campaigns, and community involvement initiatives, are organized globally to promote the message of biodiversity conservation and the protection of vulnerable species.

Participating in World Wildlife Day can include activities like wildlife photography exhibitions, nature walks, lectures, volunteer opportunities for habitat restoration, and fundraising events for wildlife conservation organizations. The day emphasizes the importance of preserving natural ecosystems and acknowledging the vital role that wildlife plays in ecological balance and human wellbeing.  

World Wetlands Day : Biodiversity Conservation and Fisheries Research Center (BCFRC)

World Wetlands Day is celebrated on February 2nd every year. It was first celebrated in 1997 to raise awareness about the importance of wetlands and the need to conserve them. The day marks the date of the signing of the Ramsar Convention on Wetlands in 1971, an international treaty that aims to conserve and manage wetlands around the world. This year’s theme is “Protecting wetlands for our common future.” 

#World wetlands Day 2025

Contamination of PTEs in Sediment and Research

Abstract:

The concern of potential toxic elements (PTEs) contamination in the river ecosystem is growing due to anthropological activity. The contents of seven PTEs in sediments from the Balu River channel were analyzed using atomic absorption spectroscopy (AAS) and an environmental risk model. Several PTEs were found in the sediment at high levels, including zinc (Zn), copper (Cu), arsenic (As), lead (Pb), cadmium (Cd), nickel (Ni), and mercury (Hg), that might pose a risk to human and ecological health. The highest mean concentration of PTEs in sediment followed in decreasing order Zn (1365.21 mg/kg) > Cu (149.34 mg/kg) > Pb (46.34 mg/kg) > Ni (34.78 mg/kg) > As (6.31 mg/kg) > Cd (2.34 mg/kg) > Hg (1.03 mg/kg). In addition, most of these PTEs were significantly correlated (p < 0.05) among the sites and exceeded the safety guideline value. The geoaccumulation index (Igeo), contamination factor (CF), and pollution load index (PLI) showed high levels of PTEs contamination and moderately polluted to highly polluted levels of these elements. At the BL3, BL4, and BL6 sites within the study site, the ecological risk (PERI) score was extremely high, and the PERI values range found was from 75.39 to 355.72. Every PTE had a slightly greater concentration during the dry season than the wet season. Interestingly, PTE accumulation from sediment indicated non-carcinogenic risk (HQdermal) in human health, whereas most of the sites showed carcinogenic risk (CRdermal) to human health (adult and child) due to Cd and Ni accumulation. Multivariate statistical analysis (MVSA) indicated the most likely anthropological sources were the untreated wastes discharged in the river sampling area. People who come into contact with polluted sediments are constantly exposed to Ni and Cd pollution, which increases the risk of cancer and non-cancerous diseases. So, continuous PTE monitoring is advised by this study to assess ecological and human health risks.

Sources: Journal of Contaminant Hydrology 

https://doi.org/10.1016/j.jconhyd.2024.104492