Knowra Hawksbill sea turtle Hawksbill sea turtle The hawksbill sea turtle (Eretmochelys imbricata) is a critically endangered marine turtle distinguished by its pointed beak and overlapping shell scales.
Sea turtle : A marine reptile in the group comprising seven living species adapted to life at sea. Hawksbills share the sea-turtle body plan while retaining distinctive features.
Sponge : A mostly sedentary aquatic invertebrate that filters particles from water through a porous body. Many hawksbill populations eat sponges, including species defended by toxins or spicules.
Tortoiseshell trade : The commerce in decorative material made from the shells of hawksbill turtles and related products. Harvest for tortoiseshell has been a major historical cause of hawksbill decline.
Eastern Pacific hawksbill turtle : A regional population of hawksbill turtles inhabiting the eastern Pacific, among the species' most threatened populations. Its small, fragmented populations face distinctive risks along Pacific American coasts.
Carapace : The dorsal shell of a turtle, formed from bone and covered by keratinous scutes in many species. Hawksbill carapace scutes overlap, creating the shell pattern prized in tortoiseshell trade.
Sponge chemical defense : The production of compounds by sponges that deter predators, competitors, or microbes. Hawksbills tolerate some chemically defended prey that many reef animals avoid.
Bycatch : The unintended capture of non-target animals during fishing operations. Hawksbills can be caught in nets, longlines, and other fishing gear.
Hawksbill nesting beach : A coastal site where female hawksbill turtles lay eggs in nests dug in sand. Protecting these sites reduces egg loss and disturbance during nesting.
Beak : A hard, toothless mouth structure used by turtles and birds to seize or process food. The hawksbill's narrow, hooked beak helps it reach prey in reef crevices.
Natal homing : The tendency of an animal to return to its birth area to reproduce. Female hawksbills often return to a nesting region associated with their natal area.
Show all 24