| Abstract: | Fingerling channel catfish (Ictalurus punctatus) were given diets containing 0, 0.4, 0.8, or 4.0 I?g dieldrin/g of food (dry weight) for 210 days, followed by a dieldrin-free diet for 56 days. Catfish receiving 4.0 I?g dieldrin/g food gained about 17% less weight than the control fish in 210 days and about 35% less weight during the last 126 days of the 210-day period. No growth differences were attributable to the ingestion of 0.4 or 0.8 I?g dieldrin/g of feed. Mortality during the experiment was random and not appreciable.
Dieldrin accumulations were characterized by an immediate rapid rise of residue levels in the tissues, followed by a period during which concentrations were relatively stable. Residues in tissues decreased rapidly after dieldrin was withdrawn from the diet. Dieldrin half-life was 9.6 days (mean for the three groups).
Theoretical residue concentrations calculated from the growth, feeding, and half-life data were similar to the empirical concentrations, although the theoretical values were consistently the higher. The recoverable concentration accounted for 25.7% (mean of the three treatments) of the theoretical concentration. |
| Genre: | Article |
| ProdID: | 1000077 |
| Citation Author: | Argyle, Ray L.; Williams, George C.; Daniel, Clara B. |
| Citation Contributing Office: | Great Lakes Science Center |
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| Citation End Page: | 2204 |
| Citation Issue: | 11 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of the Fisheries Research Board of Canada |
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| Citation Number Of Pages: | 7 |
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| Citation Phsyical Description: | p. 2197-2204 |
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| Citation Search Results Text: | Dieldrin in the diet of channel catfish (Ictalurus punctatus) : uptake and effect on growth; 1975; Article; Journal; Journal of the Fisheries Research Board of Canada; Argyle, Ray L.; Williams, George C.; Daniel, Clara B. |
| Citation Start Page: | 2197 |
| Citation Volume: | 32 |
| Citation Year: | 1975 |
| Type: | citation/reference |
| Text: | Dieldrin in the diet of channel catfish (Ictalurus punctatus) : uptake and effect on growth; 1975; Article; Journal; Journal of the Fisheries Research Board of Canada; Argyle, Ray L.; Williams, George C.; Daniel, Clara B. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1975 00:00 -0600 |
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