Chronic effects of Cd on the reproduction of the guppy (Poecilia reticulata) through Cd-accumulated midge larvae (Chironomus yoshimatsui)

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Ecotoxicol. Environ. Saf.; (United States)

DOI:https://doi.org/10.1016/0147-6513(87)90062-5· OSTI ID:5551028

Hatakeyama, S; Yasuno, M

Chronic effects of Cd on the growth and reproduction of the guppy (Poecilia reticulata) were studied using a food chain model, midge larvae as prey and guppy as predator. The transfer rate of Cd from the midge to the guppy was between 0.5 and 1% during the 30-day experiment. Growth rate of the guppy fed Cd-accumulated midge larvae (270 micrograms/g dry wt) for 30 days was not impaired. Cumulative numbers of fry produced by the guppy fed Cd-accumulated midge larvae (210 micrograms/g) for 2 months decreased to ca. 80% of the control. Guppies had been fed the Cd-accumulated midges from 30 days old for 7 months. Cumulative numbers of fry produced by the guppy fed midge larvae-accumulated 500, 800, and 1300 micrograms Cd/g for 6 months decreased to 79, 65, and 55% of the control, respectively. Similar effects of Cd on the reproduction of guppy were shown between the guppies fed the Cd-accumulated midge larvae (500 micrograms Cd/g) and exposed to 10 or 20 micrograms Cd/liter for the 6 months. The Cd concentrations of the digestive tract, liver, and kidney increased strongly, indicating that such Cd accumulation was brought on mainly through the Cd-accumulated midges. Mortality of the female guppies fed larvae-accumulated 1300 micrograms Cd/g increased abruptly from the 6 months of the experiment, whereas no male guppy died during the experiment.

• Research Organization: National Institute for Environmental Studies, Ibaraki, Japan
• OSTI ID: 5551028
• Journal Information: Ecotoxicol. Environ. Saf.; (United States), Journal Name: Ecotoxicol. Environ. Saf.; (United States) Vol. 14:3; ISSN EESAD
• 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.
ANIMAL GROWTH
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BIOLOGICAL ACCUMULATION
CADMIUM
CONTAMINATION
DISTRIBUTION
ELEMENTS
FISHES
FOOD CHAINS
GROWTH
INSECTS
INVERTEBRATES
LARVAE
METALS
POLLUTION
PREDATOR-PREY INTERACTIONS
REPRODUCTION
TISSUE DISTRIBUTION
TOXICITY
VERTEBRATES
WATER POLLUTION