Milt characteristics, reproductive performance, and larval survival and development of white sucker exposed to bleached kraft mill effluent
- Department of Biology, University of Waterloo, Ontario, (Canada)
White sucker from a Lake Superior bay which receives bleached kraft mill effluent (BKME) show increased hepatic mixed-function oxygenase (MFO) activity, reduced plasma sex steroid levels, decreased egg and gonad size, a decrease in the occurrence of secondary sexual characteristics, and an increased age to maturation. This study evaluated the reproductive performance of that white sucker population relative to a similar reference population. Spawning male white sucker from the BKME site had reduced spermatozoan motility but no significant differences in milt volume, spermatocrit levels, or seminal plasma constituents. BKME male and female fish had equal or greater fertilization potential compared to both male and female fish at the reference site. There was no difference either in the hatchability of the eggs or in larval size at hatch. BKME larvae did show reduced growth rates by 24 days posthatch but showed equal rates of yolk utilization. No difference in larval MFO activity was detected between sites at 21 days posthatch, indicating no parental transfer of induction to the progeny.
- OSTI ID:
- 5324252
- Journal Information:
- Ecotoxicology and Environmental Safety; (United States), Vol. 23:1; ISSN 0147-6513
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
FISHES
SENSITIVITY
LAKE SUPERIOR
WATER POLLUTION
POLLUTANTS
TOXICITY
CHEMICAL EFFLUENTS
FERTILITY
LIVER
MIXED-FUNCTION OXIDASES
PAPER INDUSTRY
REPRODUCTION
SPERMATOZOA
ANIMALS
AQUATIC ORGANISMS
BODY
CHEMICAL WASTES
DIGESTIVE SYSTEM
ENZYMES
GAMETES
GERM CELLS
GLANDS
GREAT LAKES
INDUSTRY
LAKES
NONRADIOACTIVE WASTES
ORGANIC COMPOUNDS
ORGANS
OXIDOREDUCTASES
OXYGENASES
POLLUTION
PROTEINS
SURFACE WATERS
VERTEBRATES
WASTES
WOOD PRODUCTS INDUSTRY
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology