| |
VIMS Sea Turtle Stranding Program
View some video clips about the turtle program:
Video
clip of sea turtle tagging Video
clip of migratory sea turtle
Virginia's Sea Turtles: Between 5,000 and 10,000 sea turtles
enter the Chesapeake Bay each spring/summer when the sea temperatures
rise. The majority of these turtles are either juvenile loggerhead
(Caretta caretta) or Kemp's ridley (Lepidochelys kempii) sea
turtles utilizing the Bay seasonally as a feeding ground. Green
(Chelonia mydas) and leatherback (Dermochelys coriacea) sea
turtles are also found within Virginia waters, though only one hawksbill
(Eretmochelys imbricata) has been reported stranded in Virginia.
All sea turtle
species are protected under the Endangered Species Act. The Kemp's
ridley is the most endangered sea turtle and one of the most endangered
animals in the world.
Since 1979, the Virginia Institute of
Marine Science (VIMS) has served as the Commonwealth's center for the
monitoring, study and conservation of endangered and threatened sea
turtles within Virginia's waters. Under the direction of Dr. J. A.
Musick, these studies have become an integral part of the educational,
research and advisory missions of the institute.
- 250 to 350 sea turtles strand within Virginia's waters each
year-mostly juvenile loggerheads and Kemp's ridleys
- Stranding activity peaks in May and June, with a smaller peak in
October when the turtles leave the Bay to travel south
- During the peak stranding period, VIMS receives four to eleven calls
a day from homeowners (majority), the Coast Guard, local fishermen, the
VA Game Warden and local state parks and industries
- Cause of death is varied: drowning due to entanglement, boat strike
injuries, cold stunning, illness, ingestion of fishing hooks, plastics
or fishing gear. Cause of death can only be determined in a small
fraction of the strandings found
- ONLY VIMS and state cooperatives are federally authorized to handle
these endangered/threatened animals
- Sick or injured sea turtles are treated and/or rehabilitated before
release back into the wild.
Objectives of the VIMS Sea Turtle Stranding Program: To monitor
population trends of sea turtles in the Chesapeake Bay and surrounding
waters. The Chesapeake Bay is a major summer foraging ground for juvenile
loggerhead and Kemp's ridley sea turtles. This region is a unique site
within the U.S. where researchers are able to assess the impact of
national conservation efforts on sea turtles. Sea turtles are very
long-lived animals that may not reach sexual maturity for at least 20
years of age. The Bay provides the first opportunity to evaluate the
success of regulations such as trawling limitations, utilization of sea
turtle exclusion devices by commercial fisheries and conservation efforts
on nesting beaches. Population increases due to conservation programs, or
population decreases due to human impact may be detected first within
Virginia's juvenile sea turtle population.
- VIMS Stranding Program responds to every sea turtle stranding from
the James
River north to the Maryland border/Potomac River.
- Virginia Marine Science Museum
(VMSM) responds to strandings south
of the James River and along the Eastern Shore.
- VIMS coordinates state-wise stranding response via volunteers and
cooperative agencies, including VMSM
- Provides real-time stranding data to federal agencies (daily and
weekly reports)
- Maintains 21+ year database of all stranding events in Virginia-the
longest continuous monitoring program in existence for juvenile
loggerhead and Kemp's ridley sea turtles
- Maintains an ongoing mark-recapture tagging program working with
local fishermen to tag and measure sea turtles caught within poundnets.
Mark-recapture data have been collected for 15+ years.
Current and Future Projects: Since 1979, VIMS Sea Turtle Program
has collected data on the long term abundance and distribution of sea
turtles within Virginia's waters, sea turtle migration, age and growth,
physiology and habitat utilization. This program has included aerial
over-flights to estimate sea turtle abundances, satellite and radio
telemetry studies to trace migratory patterns, and biological studies to
determine feeding patterns, energetics, visual acuity and causes of
mortality. Current and future projects include:
- Tracking
the at-sea movements of adult and juvenile sea turtles
utilizing Virginia's waters via satellite telemetry
- Development of a tagging database to analyze foraging site fidelity
and behavior
- Examining turtle interaction with various types of fishing gear in
order to develop safer gear alternatives
- Development of a state-wide training program for cooperating
agencies
- Development of an educational outreach program for local schools
(class projects include tracking movements of turtles via satellite
data)
Facilities/Resources: The "Turtle Greenhouse" contains 12 tanks
and a flow-through pump system. Live turtles including those that are sick
or injured may be kept and cared for within the greenhouse during the
summer months.
For more information, please contact:
Sea Turtle Stranding Coordinator Fisheries Science
Department Virginia Institute of Marine Science P.O. Box
1346 Gloucester Point, Virginia 23062 USA Phone: (804)
684-7313 Email: turtles@vims.edu
|