Effect of dietary selenium on the reproductive success of bluegills (Lepomis macrochirus)

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Environmental Toxicology and Chemistry; (United States)

DOI:https://doi.org/10.1897/1552-8618(1993)12[551:EODSOT]2.0.CO;2· OSTI ID:6332178

Coyle, J J; Buckler, D R; Ingersoll, C G; Fairchild, J F; May, T W ^[1]

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1. Fish and Wildlife Service, Columbia, MO (United States)

The effects of dietary and waterborne selenium on the reproductive success of adult bluegills were evaluated in a chronic toxicity study. Before spawning, two-year-old bluegills were exposed for 60 d to six combinations of dietary and waterborne selenium. Mean seleno-L-methionine concentrations measured in the diet were 0.8 (control), 4.6, 8.5, 16.8, and 33.3 [mu]g/g. Waterborne selenium was supplied as a 6:1 mixture of selenate and selenite. Nominal water-borne selenium exposure concentration was 10[mu]g/L in all exposures except the control. Morphological measurements of adult fish, including length, weight, condition factor, and Gonado Somatic Index, were measured at days 60 and 140 of exposure. Reproductive indicators, including spawning frequency, number of eggs per spawn, percentage of hatch, and survival of resulting fry for 30 d after hatch were monitored during the 11-week spawning period. Selenium concentrations were determined in adult fish, eggs, and 30d-old fry. Only fry were significantly affected. Survival was severely reduced in fry of parents exposed to 10[mu]g/L waterborne selenium in combination with dietary exposure of 33.3 [mu]g/g seleno-L-methionine. These results support field observations that indicate food-chain accumulation of selenium can severely reduce reproductive success of bluegills.

• OSTI ID: 6332178
• Journal Information: Environmental Toxicology and Chemistry; (United States), Journal Name: Environmental Toxicology and Chemistry; (United States) Vol. 12:3; ISSN 0730-7268; ISSN ETOCDK
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AGE DEPENDENCE
ANIMALS
AQUATIC ORGANISMS
CHRONIC EXPOSURE
DIET
ELEMENTS
FISHES
POLLUTION
REPRODUCTION
SELENIUM
SEMIMETALS
SENSITIVITY
TOXICITY
VERTEBRATES
WATER POLLUTION