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Uptake, metabolism and excretion of the molluscicide N‐tritylmorpholine by the tropical food fish Sarotherodon mossambicus (Peters)
Author(s) -
Matthiessen P.
Publication year - 1977
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1977.tb04142.x
Subject(s) - biology , oreochromis mossambicus , excretion , tilapia , fish <actinopterygii> , feces , metabolism , zoology , endocrinology , medicine , fishery , ecology
Uptake, metabolism and excretion of radio‐labelled N‐tritylmorpholine (Frescon) were studied in the tropical food fish Sarotherodon mossambicus (Peters). After 55 h exposure to sub‐lethal solutions, concentration factors in whole fish were as high as 1300 (up to 40 mg/kg), at least 80 % of the absorbed activity being unchanged Frescon. Approximately 40 % of this activity was found in bone, 16% in muscle, 16% in gut and 10% in gill. The bile was found to be a route of Frescon excretion, and recovering fish excreted 50% of the absorbed activity in 55 h. The applicability of these results to the field situation is discussed.