1 AIT Asian Institute of Technology

Bioassay studies on Chao Phya River fish

AuthorYang, Byung Soo
Call NumberAIT Thesis no. 1409
Subject(s)Fishes--Thailand--Chao Phya Rive
Biological assay
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science of the Asian Institute of Technology, Bangkok, Thailand
PublisherAsian Institute of Technology
AbstractAcute toxic tests on seven species of Chao Phya River fish were con ducted using heavy metals (Cadmium and Copper) to identify a sensitive fish which could be used as a standard fish for future works. It was found that the most sensitive fish to copper was Morulius chry sophekadion with a 96 h-TLm value of 0.043 mg/l as copper and the next most sensitive fish was Puntius gonionotus with a 96 h-TLm value of ยท0.11 mg/l. The most sensitive fish to cadmium was Puntius gonionotus with a 96 h TLm value of 3.43 mg/l as metal and the next most sensitive fish was Moru rius chrysophekadion with a 96 h-TLm value of 4.5 mg/l as metal. The most resistant fish to both Cadmium and Copper was Tilapia nilotica. Median to lerance limits of Copper and Cadmium to certain species of fish after 96 h approached the lethal threshold concentration but some species of fish re quired a longer period of time, and the toxicity of Copper was greater than that of Cadmium.
Year1978
TypeThesis
SchoolStudent Research Before 1979
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Edwards, Peter ;Samorn Muttamara
Examination Committee(s)Chongrak Polprasert
Scholarship Donor(s)The Government of Canada
DegreeThesis (M.Eng.) - Asian Institute of Technology,1978


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