SYMPOSIA PAPER Published: 01 January 1980
STP27419S

Assimilation Efficiency and Clearance of Trichlorobenzenes in Rainbow Trout

Source

A unique experimental approach has been applied to a study of the bioaccumulation dynamics in rainbow trout fed a single meal containing trichlorobenzenes (TCBs). The technique involves the incorporation of a radioactive chemical marker in the diet, in addition to the chemical of interest (TCB). The marker chemical permits an estimate to be made of the assimilation efficiency of TCB in food. The assimilation efficiency can then be used, in conjunction with a series of direct analyses for TCB body burdens, to describe tissue clearance dynamics in terms of individual fish.

Trout given a pulse dose meal containing 50 ppm TCB assimilated approximately 61 percent of the chemical. Individual fish were capable of clearing more than 90 percent of the TCB sequestered in their tissues within 174 h after dosing.

Author Information

Smith, AD
Lakehead University, Thunder Bay, Ontario, Canada
Griffith, TJ
Lakehead University, Thunder Bay, Ontario, Canada
Orr, DE
Lakehead University, Thunder Bay, Ontario, Canada
Ozburn, GW
Lakehead University, Thunder Bay, Ontario, Canada
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Details
Developed by Committee: E35
Pages: 216–223
DOI: 10.1520/STP27419S
ISBN-EB: 978-0-8031-4775-1
ISBN-13: 978-0-8031-0280-4