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TURTLES IN LOUISIANA

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TURTLES IN LOUISIANA

RED-EARED SLIDER – 1988 vs 2009

•  1 some illegal trade •  2 100,000 female RES from wild each year •  3 6 months = tens of thousands trapped for food

– shipped to Asia •  4 trappers must expand areas to trap •  5 declines noted (1984-1988) •  6 trade in RES is widespread and increasing •  7 CITES list would allow data of exact numbers

traded •  8 hatchling turtles carry salmonella1

Page 3: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

TURTLE FARMS

Page 4: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

BANS – TRENDS - DIVERSIFICATION

Page 5: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

LEMIS DATA

•  2003-2008 – 77,841,396 turtles •  68% shipped from New Orleans

Page 6: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

APALONE

Page 7: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

TURTLES AS FOOD •  Chelydra + Apalone ferox •  $1.25 lb •  New Orleans •  171 Chelydra, 423 Apalone/ yr

Page 8: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

NUISANCE TURTLES

Page 9: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

TURTLE SURVEYS

Page 10: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

ALLIGATOR SNAPPING TURTLE

Page 11: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

SURVEY RESULTS

8421 Trap Nights

123 Sites

541 Alligator Snappers

Page 12: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

Demographics

•  Seasonality: 0.052 vs 0.070 •  Water Body: 0.075 vs 0.045 •  Juveniles – 43% •  Sex Ratio – 49:51 •  Weight – mean 18 kg : 13 kg

Page 13: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

HARVEST HISTORY » Harvest No harvest

•  % juveniles ns

•  Sex ratio ns

•  Weight 12.0 8.9

•  Trap rate 0.05 0.07

Page 14: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

Missing cohorts 1997 2007

Page 15: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

MESH SIZE

Page 16: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

TOTAL TURTLES 8421 trap nights

Page 17: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

TEN-YEAR RESURVEY

Page 18: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

BOX TURTLES

Page 19: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

DEMOGRAPHY

•  5 eggs per clutch

•  441 box turtles from 7 sites

•  Females mature at 7/8 years at ~12 cm CL

•  Sex ratio 58:42

Page 20: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

Harvest effects

•  Adult CL ns •  Juv CL ns •  Sex ratio ns •  Juv % ns

•  Capture rate •  0.41 vs 0.93

Page 21: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

POPULATION

•  ~6.5 adults per acre

Page 22: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

MANAGEMENT

•  Area Closures •  Seasonal Closures •  Size Restrictions •  Harvest Quotas •  Males Only

Page 23: TURTLES IN LOUISIANA - U.S. Fish and Wildlife Service · 2014-07-30 · TURTLES IN LOUISIANA . RED-EARED SLIDER – 1988 vs 2009 • 1 some illegal trade • 2 100,000 female RES

The Take of Turtles

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