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WWF

Infographic: Sea turtles

For more than 100 million years sea turtles have covered vast distances across the world's oceans, filling a vital role in the balance of marine habitats.

7 species of sea turtles grace our ocean waters and most are endangered

White icon of a sea turtle
Leatherback

Dermochelys coriacea

Status: Vulnerable
Length: 55–63 in.
Diet: Jellyfish

Small white turtle icon
Loggerhead

Caretta caretta

Status: Vulnerable
Length: 33–49 in.
Diet: Clams, sea urchins

Sea turtle white icon
Green turtle

Chelonia mydas

Status: Least Concern
Length: 31–47 in.
Diet: Seagrass

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Flatback

Natator depressus

Status: Data Deficient
Length: 31–37 in.
Diet: Crabs, other crustaceans, mollusks

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Hawksbill

Eretmochelys imbricata

Status: Critically Endangered
Length: 30–35 in.
Diet: Sponges, sea anemones

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Kemp's Ridley

Lepidochelys kempii

Status: Critically Endangered
Length: 24–28 in.
Diet: Crabs, other crustaceans, mollusks

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Olive ridley

Lepidochelys olivacea

Status: Vulnerable
Length: 24–28 in.
Diet: Crabs, other crustaceans, mollusks

Deadly threats at every life stage

Bycatch

The incidental capture of non-target species when fishing.

Illegal trade and direct consumption

Used for meat, eggs, shell, leather, curios.

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Habitat loss

Uncontrolled coastal development destroys or disturbs nesting beaches.

Climate change

Global warming could skew sex ratios, resulting in more females.

  • 90% population decline

    of Eastern Pacific leatherbacks over the last 30 years

  • Tens of thousands

    of sea turtles are lost each year to overharvesting and illegal trade

  • 4,950 turtles are caught

    as bycatch each year by Indonesian longline vessels alone

How you can help

Call for a global treaty on plastic pollution

World leaders are negotiating a legally binding global treaty to end plastic pollution. Add your name in support of an ambitious treaty.

Make a good buy when traveling

Think twice and ask at least a few questions before buying that tortoiseshell souvenir, coral jewelry or snakeskin belt.

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Support sea turtle ecotourism

Book a sustainable tour to see turtles, particularly when it benefits local communities.

Sources

  • "90% population decline …" statistic from Las Baulas National Park, Costa Rica
  • "4,950 turtles caught as bycatch …" statistic from Research Center for Capture Fisheries Indonesia Ministry of Marine Affairs and Fisheries (PRPT)
  • More information can be found on the turtle species page.