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EDRI Federal Project Inventory:
Effects of Environmental Contaminants on Loggerhead Sea Turtles (Caretta Caretta)
- Sponsor Organization: DIVISION OF REFUGES & DIVISION OF ENVIRONMENTAL CONTAMINANTS, U. S.
FISH AND WILDLIFESERVICE, DEPARTMENT OF THE INTERIOR
- Project Title: EFFECTS OF ENVIRONMENTAL CONTAMINANTS ON LOGGERHEAD SEA TURTLES
(CARETTA CARETTA)
- Project Focus: ECOLOGICAL EFFECTS
- Description: Contaminants are known to be sequestered in vitellogenin of reptilian
eggs duringfolliculogenesis. However, no data are available relating
to the uptake of contaminants throughthe eggshell during incubation.
The possibility of using contaminated dredged material torenourish
beaches may produce sub-lethal, insidious physiological and anatomical
changes. Thesechanges could introduce sterile young into a
population, but these effects may not be noticed untilloggerhead sea
turtles reach reproductive maturity between 12-15 years of age.
Therefore, itbecomes implicit to identify and alleviate contaminant
sources before a population crash orextinction become a reality. Data
from collections of unhatched loggerhead turtle eggs from nestson
developed and undeveloped beaches in Georgia and eastern Florida will
be compared.
- References: Guillette, L.J. Jr., T. S. Gross, G.R. Masson, J.M. Matter, H.F.
Percival and A.R. Woodward. 1994. Developmental abnormalities of the
gonad and abnormal sex hormone concentrations injuvenile alligators
from contaminated and control lakes in Florida. Environ Health
Perspect102:680-688.
- Category: MEASUREMENTS
- Subcategory: EXPOSURE DETERMINATIONS/FOLLOW UP, BASIC RESEARCH, BIOMARKERS,
MULTIDISCIPLINARY RESEARCH
- Keywords for Experimental System/Species: FIELD STUDY, IN VIVO, REPTILIAN, LOGGERHEAD TURTLES
- Keywords for Experimental Endpoints: EXPERIMENTAL ENDPOINT: REPRODUCTIVE, NEUROLOGICAL, EMBRYO,
IMMUNOLOGICAL, TISSUE RESIDUES,HISTOPATHOLOGY,
- Chemical Agents: PCB's, CAS nos. 5701,5702,5700,5703,5704,5705,5706; Dioxin: CAS no.
1746-01-6 andrelated congeners; PAHs, Metals
- Performing Institution: U. S. Fish and Wildlife Service, Brunswick Field Office, 4270 Norwich
Street, Brunswick,GA 31520
- Contact: Greg R. Masson, Ph.D. (912) 265-9336
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