Zinc accumulation in fiddler crabs Uca annulipes latreille and Uca triangularis (Milne Edwards)

Journal Article · Sun Oct 01 00:00:00 EDT 1989 · Ecotoxicology and Environmental Safety; (USA)

DOI:https://doi.org/10.1016/0147-6513(89)90073-0· OSTI ID:5098454

Uma Devi, V; Rao, Y P ^[1]

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1. Andhra Univ., Waltair (India)

The effect of exposure time and concentration on the tissue-specific accumulation of Zn in two fiddler crabs, Uca annulipes and Uca triangularis, obtained from polluted (Visakhapatnam Harbor) and unpolluted (Bhimilipatnam) areas was studied. Hepatopancreas registered major accumulation of Zn when the crabs were exposed to sublethal concentrations (6.38 to 15.39 ppm) for 30 days. However, when the crabs were exposed to different concentrations of Zn (LCO, LC25, LC50, LC75) ranging from 12.93 to 99.38 ppm, higher accumulation was recorded in gills than in hepatopancreas. There was a progressive increase in the percentage body burden of Zn in hepatopancreas, but that in gills showed a decreasing trend. The standardized body burdens for both species of crabs were calculated to evaluate their sensitivity to exposure time as well as to concentration. The fractional retention coefficients for exposure time estimated for exposed crabs indicate that U. triangularis from Bhimilipatnam, having the highest value, is sensitive and U. annulipes from Visakhapatnam Harbor, showing the lowest value, is resistant.

• OSTI ID: 5098454
• Journal Information: Ecotoxicology and Environmental Safety; (USA), Vol. 18:2; ISSN 0147-6513
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
54 ENVIRONMENTAL SCIENCES
CRABS
SENSITIVITY
WATER POLLUTION
BIOLOGICAL INDICATORS
ZINC
BIOLOGICAL ACCUMULATION
ABSORPTION SPECTRA
BODY BURDEN
DOSE-RESPONSE RELATIONSHIPS
GENETIC VARIABILITY
GILLS
INDIA
LIVER
METABOLISM
MUSCLES
PANCREAS
SPECTROPHOTOMETRY
TIME DEPENDENCE
TISSUE DISTRIBUTION
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
ASIA
BIOLOGICAL VARIABILITY
BODY
CRUSTACEANS
DECAPODS
DEVELOPING COUNTRIES
DIGESTIVE SYSTEM
DISTRIBUTION
ELEMENTS
ENDOCRINE GLANDS
GLANDS
INVERTEBRATES
METALS
ORGANS
POLLUTION
RESPIRATORY SYSTEM
SPECTRA
560300* - Chemicals Metabolism & Toxicology
540320 - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)