Discovered new fish species: Freshwater fish study and survey with Swedish scientist in 2014. Discovered new fish species Danio annulosus. It is a small freshwater fish species belonging to the family Cyprinidae and subfamily Danioninae. Molecular analysis based on the mitochondrial COI gene confirmed that Danio annulosus is genetically distinct from closely related species such as Danio catenatus, with a divergence of about 3.4%. It was formally described in 2015 by ichthyologists Sven O. Kullander, Michael Norén. This discovery represents an important addition to the biodiversity of Bangladesh, particularly within the ecologically rich hill stream systems of the Chittagong Hill Tracts.The species was discovered in a small rocky pool at the base of the Shuvolong Falls in the Kaptai Lake system, located in Rangamati district, southeastern Bangladesh. Its unique ringed pattern, restricted habitat, and genetic distinctiveness make it an important species for studies in taxonomy, biogeography, and conservation biology. The Shuvolong Falls are part of a hill waterfall system connected to Kaptai Lake and the Karnaphuli River basin. Citation :Kullander et al. 2015, Danio annulosus, a new species of chain Danio from the Shuvolong Falls in Bangladesh (Teleostei: Cyprinidae: Danioninae). Zootaxa, 3994(1):53-68. DOI: 10.11646/zootaxa.3994.1.2.
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Participated at 1st International Conference Hydromedit 2014, Volos, Greece : The 1st International Congress of Applied Ichthyology & Aquatic Environment (HydroMedit 2014) was held from November 13–15, 2014, in Volos, Greece, and was organized by the University of Thessaly. This inaugural congress marked the beginning of the HydroMedit series, which has since developed into a major international platform for research in ichthyology, fisheries, and aquatic sciences. I represented article entitled “Freshwater Habitats and Fishing Activities in the Buriganga River, Dhaka, Bangladesh”. The 1st International Congress of Applied Ichthyology & Aquatic Environment (HydroMedit 2014) was a landmark event that successfully united the global scientific community in the field of aquatic sciences. Its establishment marked the beginning of a sustained international effort to advance research, foster collaboration, and support sustainable management of aquatic ecosystems worldwide.
HydroMedit 2014, Volos, Greece
Participated at 1st International Congress of Applied Ichthyology & Aquatic Environment, HydroMedit 2014, on November 13-15, 2014, Organised by The University of Thessaly, Volos, Greece.
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Participated in Prof. Dominique Bureau’s course at Huazhong Agricultural University, China, during the PhD program:
Courses taught by Prof. Dominique P. Bureau (University of Guelph, Canada) are internationally recognized for their strong focus on aquaculture nutrition, fish physiology, and feed formulation. His teaching integrates scientific theory with real-world aquaculture applications, preparing students for careers in fisheries, aquaculture industries, and research. Prof. Bureau is a leading expert in fish nutrition and aquafeed development, and his courses reflect decades of research on nutrient utilization, growth modeling, and sustainable aquaculture systems.
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PhD Graduation (2017 – 2021) at Huazhong Agricultural University, China
Md. Muzammel Hossain pursued his Doctor of Philosophy (PhD) at Huazhong Agricultural University (HZAU), Wuhan, China, one of the leading research universities in Asia, particularly renowned for agriculture, environmental science, and life sciences.
During his PhD tenure, Dr. Hossain contributed to several peer-reviewed international publications, focusing on:
- Contamination of crayfish and rice culture by silicone
- Risks associated with silicone in crayfish and rice growth
- Antioxident enzyme activities and related gene expression
- Addresses critical environmental pollution issues
These works have contributed to the growing body of knowledge in environmental toxicology and exposure science and support evidence-based environmental policies.
Huazhong Agricultural University provided a research-intensive environment with:
- Modern laboratories and analytical facilities
- Collaboration with international scientists and research groups
- Opportunities for conference participation and scientific exchange
- Strong emphasis on innovation and applied research
This environment helped Dr. Hossain develop both technical expertise and global research perspectives.
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Postdoc (2022 – 2025) at Jiangsu University, China
During his Postdoc traning, Dr. Hossain worked on interdisciplinary themes linking environmental contamination, ecological processes, and human health risks. His research primarily emphasized:
- Heavy metal pollution and distribution in aquatic and terrestrial ecosystems
- Ecotoxicology and environmental exposure pathways
- Risk assessment of pollutants in water, soil, sediment, and biota
- Bioaccumulation and biomagnification in food chains
- Sustainable environmental management and remediation strategies
These research areas are highly relevant to global environmental challenges, especially in rapidly industrializing regions.
His postdoctoral training involved advanced scientific methodologies, including:
- Field sampling and environmental monitoring (water, soil, sediment, fish, plants)
- Laboratory-based chemical analysis (e.g., heavy metal quantification)
- Statistical and modeling approaches for ecological and human health risk assessment
- Use of analytical instruments such as spectroscopy and chromatography
This combination of field and laboratory work provided a comprehensive understanding of environmental systems. Dr. Md. Muzammel Hossain’s Postdoc program at Jiangsu University, China represents a strong blend of advanced research, practical application, and global relevance. His work in environmental toxicology and risk assessment continues to influence research, education, and sustainable environmental practices, particularly in developing countries like Bangladesh.