Survival, growth, and bioaccumulation of heavy metals by juvenile tanner crabs (Chionoecetes bairdi) held on weathered mine tailings

Juvenile tanner crabs were held for at least 500 d on weathered mine tailings, and the effects of survival, growth, and bioaccumulation of heavy metals were examined. All crabs were monitored daily for molting and mortality. Growth appeared to be unaffected during the first and second growth periods...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1997-05, Vol.58 (5), p.830-837
Main Authors: STONE, R. P, JOHNSON, S. W
Format: Article
Language:English
Subjects:
Alaska
Analysis of Variance
Animal, plant and microbial ecology
Animals
Applied ecology
Bioaccumulation
Biological and medical sciences
Biological Availability
Brachyura - growth & development
Brachyura - metabolism
Chionecetes bairdi
Chionoecetes bairdi
Crustaceans
Decapoda
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on protozoa and invertebrates
Food Contamination
Fundamental and applied biological sciences. Psychology
Gills - drug effects
Gills - pathology
Heavy metals
Industrial Waste - adverse effects
Marine
Metals - metabolism
Metals - toxicity
Mine tailings
Mine wastes
Mining
Muscles - drug effects
Muscles - pathology
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Summary:Juvenile tanner crabs were held for at least 500 d on weathered mine tailings, and the effects of survival, growth, and bioaccumulation of heavy metals were examined. All crabs were monitored daily for molting and mortality. Growth appeared to be unaffected during the first and second growth periods, and no external signs of stress were observed. Histological examinations revealed no tissue alteration due to tailings exposure. Metal concentrations were 1.5 12 times greater in the tailings than in the control sediment at the beginning of the study period. Generally, baseline metal levels in muscle tissue were below or comparable to levels measured in crabs at other sites. The only exception was chromium, which was six times higher in the muscle of control crabs. Regardless of the treatment, the concentrations of cadmium, Cr, copper, nickel, and lead were greater in gill than in muscle.
ISSN:0007-4861
1432-0800
DOI:10.1007/s001289900409