Effects of protracted cadmium exposure on gametes of the purple sea urchin, Arbacia punctulata

Adult sea urchins (Arbacia punctulata) were exposed to 100 ppb cadmium for 14 d and the effects on spermatogenesis and oogenesis were studied. Eggs and sperm from exposed and unexposed urchins were collected and the sex products were mixed to give 4 treatment groups: male and female exposed; male ex...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1996-03, Vol.56 (3), p.493-499
Main Authors: BOWEN, W. J, ENGEL, D. W
Format: Article
Language:English
Subjects:
Analysis of Variance
Animal, plant and microbial ecology
Animals
Applied ecology
Arbacia punctulata
Biological and medical sciences
Cadmium - toxicity
Echinoidea
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on protozoa and invertebrates
Embryonic and Fetal Development - drug effects
Female
Fundamental and applied biological sciences. Psychology
Larva
Male
Marine
Ovum - drug effects
Sea Urchins
Seawater
Spermatogenesis - drug effects
Water Pollutants, Chemical - toxicity
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Summary:Adult sea urchins (Arbacia punctulata) were exposed to 100 ppb cadmium for 14 d and the effects on spermatogenesis and oogenesis were studied. Eggs and sperm from exposed and unexposed urchins were collected and the sex products were mixed to give 4 treatment groups: male and female exposed; male exposed and female unexposed; male unexposed and female exposed; and male and female unexposed. Subsamples of eggs/larvae were collected at 3 sampling times (4-6, 24 and 48 h) and scored for normal development. Exposure to cadmium affected larval development at 4-6 and 48 h relative to controls but not at 24 h. Male gametes were affected more than females.
ISSN:0007-4861
1432-0800
DOI:10.1007/s001289900071