Common Mud Common Musk Alligator Snapper Red-eared Slider AQUATIC TURTLES OF KENTUCKY Smooth Soft-shell Painted Turtle Common Map Eastern River Cooter History and Life • First turtles appeared about 200 million years ago, considerably before dinosaurs • Have undergone little evolutionary change • There are about 100 aquatic turtles that live in the United States, only about 16 live in Kentucky • Can live for more than 50 years, average is about 35 in wild • Live in almost every type of habitat Kentucky Turtles • • • • • • • • • Alligator Snapper Common Snapper Mississippi Map False Map Ouachita Map Common Map Midland Painted Southern Painted Red-eared Slider • • • • • Common Musk Eastern Mud Mississippi Mud Eastern River Cooter Hieroglyphic River Cooter • Midland Smooth Softshell • Eastern Spiny Softshell Taxonomy • Kingdom: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Class: Reptilia • Subclass: Anapsida Order: Chelia or Testudines Family: Chelydridae Snapping turtles Family: Kinosternidae Mud and Musk turtles Family: Emydidae Sliders and Cooters Family: Trionychidae Soft-shelled Types of Turtles • Tortoises: terrestrial • Terrapins: freshwater • Turtles: used to refer to marine, used commonly for all members Turtle Anatomy Turtle Anatomy • No teeth, sharp strong jaws and beak • Scutes of tough keratin cover the surface of the bones • Turtles have about 50 bones • Shell has hinge between plastron and carapace to protect turtle inside Family CHELYDRIDAE 2 Turtles: Alligator Snapper Macroclemys temminckii Common Snapper Chelydra serpentina Common Snapper Common Snapper • Carapace tan to dark brown • Massive head and powerful jaws • 3 rows of keels • Tail as long as carapace • Up to 45 lbs. in wild, can exceed 75 lbs. in captivity • Diet: invertebrates, aquatic plants, fish, birds, small mammals • Likes soft mud bottoms, plenty of vegetation and some brackish waters • Length: 10-18 ½ in. • N.A. Status: Common Rockies-east coast Common Snapper Breeding • Mates April to November • Lays as many as 83 spherical eggs, usually 20-30 • Eggs laid in muskrat lodge • Females can retain sperm • Incubation depending on weather 9-18 weeks Common Snapper Distribution Alligator Snapper Alligator Snapping Turtle • Largest freshwater turtle, record 316 lbs. • Massive head with strongly hooked beak • Long tail • Carapace brown or gray • 3 prominent keels and extra row of scutes • Likes deepwater rivers, lakes, some brackish • Unique structure in mouth, acts as “fishing lure” • Diet: anything including other turtles • Length: 16-32 in. • Status: Vulnerable E. Tex.-Ga.,north to Miss. River in Iowa Alligator Snapper Breeding • Lays one clutch between April and June • 10-52 spherical eggs buried in mud or sand • Incubation 11 ½ -16+ weeks • Only females leave water to lay eggs Alligator Snapper Alligator Snapper Distribution Family KINOSTERNIDAE Common Musk Sternotherus odoratus Eastern Mud Kinosternon subrubrum subrubrum Mississippi Mud Kinosternon subrubrum hippocrepis Common Musk Turtle Common Musk ID • Smooth, high domed carapace, olive brown to dark gray with layer of algae • 2 light stripes on head • Females short tail, small head • Males large, long tail ending in a blunt spine, enlarged head, anus posterior to edge of carapace • Barbels on head and throat, both sexes • Length: 3-5 inches • Status: Common c. Tex.-Wisconsin, east Common Musk Breeding • Mates February to June • Females lay several clutches annually • 1-9 elliptical eggs • Deposited in tunnels dug by muskrats or in nests of alligators, under tree stumps • Incubation about 9 to 12 weeks Common Musk Turtles • Musky odor released by two glands under the edge of carapace, musk turtles smell worse than mud turtles • Nicknames: – “Stinking Jim” – “Stinkpot” • Live in freshwater and streams, some brackish waters • Mainly in sluggish water with mud bottom and plenty of vegetation • Diet: omnivorous, worms, aquatic insects, crickets, larvae, and aquatic plants Musk Turtle Distribution Eastern Mud Turtle Eastern Mud • Carapace olive to dark brown, patternless, smooth • Dives swiftly at the least sign of danger • Fresh or brackish water - shallow, slowmoving, soft bottom, plenty of vegetation • Diet: prey caught off bottom and aquatic vegetation • Males more aggressive than females over territory • Musky odor • Length: 3-4 inches • Status: Common S.E. U.S. Eastern Mud Breeding • Mates March to May • Several clutches laid annually • 1-6 elliptical eggs • Incubation about 100 days • Deposited in tunnels dug by muskrats or in nests of alligators Mud Turtle Distribution Family EMYDIDAE Mississippi Map Common Map Graptemys pseudogeographica kohni Graptemys pseudogeographica pseudogeographica Graptemys pseudogeographica ouachitensis Graptemys geographica Midland Painted Southern Painted Chrysemys picta picta Chrysemys picta dorsalis False Map Ouachita Map Family EMYDIDAE (con’t) Red-eared Slider Trachemys scripta elegans Hieroglyphic River Pseudemys concinna Cooter heiroglyphica Eastern River Cooter Pseudemys concinna concinna Common Map Turtle Common Map • Yellow and olivebrown colored carapace • Yellow oddly shaped circle behind eyes • Females are larger, males half their size • Large ponds, swamps, quiet streams with muddy bottoms, abundant aquatic vegetation • Basks in sun • Diet: females-clams, crayfish, snails, insects, some plants • Length: 9-13 inches • Status: Common Northern Ala.north,Eastern Nebraska east to Eastern OH., Common Map Breeding • 2-3 clutches per season • 3-20 eggs laid early summer • Males stroke face and neck of females with claws Common Map Distribution Red-eared Slider Red-eared Slider • Prominent red stripe behind eyes • Carapace olive to brown with yellow bars and stripesCarnivorous young, herbivorous as adults • Enjoy basking on logs • Hibernate in colder weather • Live more than 30 years • Sluggish water, soft bottoms, dense vegetation • Diet: young-aquatic invertebrates, tadpoles adults-plant material • “Dime Store” Turtle • Don’t survive to adult • Length: 8-12 inches • Status: Lower risk S. Central-S.E. U.S. Slider Breeding • Females larger than males • Males stroke face and neck of female with claws • Mates March to June • 1-3 clutches, 2-23 oval eggs • Incubation: 2-2 ½ months • Males mature 2-5 years Slider Distribution Family TRIONYCHIDAE Midland Smooth Soft-shell Trionyx mutica mutica Eastern Spiny Soft-shell Apalone spinifera spinifera Spiny Soft-shell Spiny Soft-shell • Yellowish-greenish carapace • Entire shell feels like sandpaper • Several large spines or conelike projections • Nose resembles a snorkle • Rivers, streams, and large lakes with sandy or muddy bottoms • Diet: crayfish, food, aquatic insects • Can remain submerged for up to five hours using either dermal or cloacal respiration • Capable of exchanging gas through their skin in both water and air • Length: 17 inches females, ½ that males • Status: Common but at risk S. Central U.S. Spiny Soft-shell Distribution Midland Smooth Soft-shell Midland Smooth Soft-shell • Gray or brown with dots and dashes on the back • No bony scutes like other turtles • Flat and leathery with very flexible edges • Nose tapers to a point and resembles a snorkle • NO ridge in each nostril, different from a spiny softshell • Feet of softshells have extensive webbing • Found in rivers, large streams, and rarely large lakes with sandy or muddy bottoms • Diet: insects, worms, snails, clams, frogs, fish, young birds, small mammals, algae, and seed • Length: 14 inches or more, males half that • Status: Common/risk Smooth Soft-shell Distribution Spiny and Smooth Soft-shell Breeding • Breed in May and they lay their eggs in June or July • Young hatch in August or September • Lay the 12 to 30 eggs, ping-pong ball shaped • Nests are on sandbars • Eggs often dug up by carnivorous mammals, drown, some fish Threats • Most turtles are declining in numbers due to: – Pet Trade – Organs sold for medicinal purposes worldwide – Food – Habitat Loss – Overabundance of predators such as raccoons Solutions • In the pet trade, it is now illegal to sell a turtle if the carapace is less than 4 inches in length • Some turtles are being put on threatened lists and being labeled as “vulnerable” so they can be more protected under laws and policies • Of 270 or more known species, more than 100 are considered rare or threatened with extinction Problems in Kentucky • Snapping turtles are a danger to young waterfowl. • To remove turtles, bait heavy lines with chicken gizzards and place baited lines in the shallow water areas around the pond. Captured turtles can be eaten or relocated. • Smaller, hard-shell, or slider turtles can be captured with a trap. Make a trap place placing a box or barrel in your pond. Put a board across the top. Turtles will climb onto the board to bask in the sun, then fall into the box or barrel. Research • Most research done on Sea turtles, not freshwater • “Temperature and Sex Determination in Reptiles with Reference to Chelonians” David Madge, University of London (2000) • Several places have included turtles in research but only in terms of species inventory of a specific piece of land • “An Inventory of the Amphibian and Reptile Fauna of Ichauway” Joseph W. Jones Ecological Research Center at Ichauway in Georgia (2001)