Effects of dieldrin in food on growth and bioaccumulation in mallard ducklings
- Cite this article as:
- Nebeker, A.V., Dunn, K.D., Griffis, W.L. et al. Arch. Environ. Contam. Toxicol. (1994) 26: 29. doi:10.1007/BF00212790
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The effects of dieldrin in food organisms and commercial feed on growth and bioaccumulation were determined in mallard ducklings (Anas platyrhynchos). Dieldrin-fed crickets, mealworms and annelid worms, and dieldrin-spiked commercial feed, were fed to mallard ducklings for 8 days. Mean measured food concentrations (animals plus feed) of <0.2, 2.6, 26.2, and 49.3 μg/g dieldrin did not affect growth after 14 days. Tissue dieldrin concentrations (μg/g wet wt) increased rapidly: up to 80.7 (lipid), 30.1 (skin), 4.1 (liver), 1.8 (muscle), and 1.6 (brain) μg/g. Dieldrin concentrations in tissues were up to 3.7 times greater than in the test diets.