Loggerhead sea Turtle

Caretta caretta (Linnaeus, 1758)

Dermochelys coriacea (Vandelli, 1761) – Accepted by WoRMS

Animalia (Kingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Gnathostomata (Infraphylum) > Tetrapoda (Megaclass) > Reptilia (Superclass) > Testudines (Order) > Cryptodira (Suborder) > Chelonioidea (Superfamily) > Dermochelyidae (Family) > Dermochelys (Genus) > Dermochelys coriacea (Species)

Other names:

Vernacular names:

  • Tamil: Loggerhead kadal aamai
  • Telugu: samudrapu tabelu / palakala tabelu
  • Odiya: Mund Kainch
  • Bengali: Mathar kachchhap
  • Malayalam: Loggerhead Kadalaama
  • Kannada: Guru Tale aame
  • Marathi: Loggerhead Kasav
  • Gujarathi: mota matha valo dariyayi kachbo
  • Hindi: Logger kachhua

Identifying characters

  • Adult and subadult have reddish-brown carapace and dull brown to yellowish plastron
  • Carapace is thick and bony and covered with non-imbricated horny scutes, five pairs of costal scutes, 11 or 12 pairs of marginals and five vertebrae
  • They carry encrusting organisms like barnacles and distinguished by strong jaws and large heads

IUCN Red List Category and Criteria

Vulnerable A2b ver 3.1

Date Assessed 23 August 2015, Year Published 2017

Movement patterns: Fully Migrant

Geographical range

NATIVE

Extant (resident)

Albania; Algeria; Angola; Anguilla; Argentina; Aruba; Australia; Bahamas; Bahrain; Bangladesh; Barbados; Belize; Bermuda; Bonaire, Sint Eustatius and Saba (Bonaire); Brazil; Cabo Verde; Cayman Islands; Chile; China; Colombia; Comoros; Costa Rica; Croatia; Cuba; Curaçao; Cyprus; Djibouti; Dominican Republic; Ecuador; Egypt; Eritrea; Fiji; France; French Guiana; French Polynesia; Greece; Grenada; Guadeloupe; Guatemala; Haiti; Honduras; Indonesia; Iran, Islamic Republic of; Israel; Italy; Jamaica; Japan; Kenya; Korea, Republic of; Kuwait; Lebanon; Libya; Madagascar; Malaysia; Malta; Mauritius; Mexico; Montenegro; Montserrat; Morocco; Mozambique; Myanmar; Namibia; New Caledonia; New Zealand; Nicaragua; Niue; Oman; Pakistan; Panama; Papua New Guinea; Peru; Philippines; Portugal; Puerto Rico; Qatar; Saint Barthélemy; Saint Kitts and Nevis; Saint Lucia; Saint Vincent and the Grenadines; Senegal; Sierra Leone; Slovenia; Solomon Islands; Somalia; South Africa; Spain (Canary Is.); Sri Lanka; Suriname; Syrian Arab Republic; Tanzania, United Republic of; Tokelau; Tonga; Trinidad and Tobago; Tunisia; Turkey; Turks and Caicos Islands; United Arab Emirates; United States; Uruguay; Venezuela, Bolivarian Republic of; Viet Nam; Virgin Islands, British; Virgin Islands, U.S.; Yemen

Size: 90 cm to 1 m

Weight: 70 to 85 kg

Habitat: Inhabit shallow waters over the continental shelf

Food: Carnivorous in nature, Feeds on Molluscs like Giant clams and conches, Crustaceans like crabs and lobsters

Breeding season: January to June

Nesting intensity: 3 to 5 times/season

Average Clutch size: 40 to 150 eggs

Maximum Clutch size observed: 70 to 190 eggs

Egg size: Spherical and about 6 cm in diameter

Survival rate: Highest survival rate among other sea turtle species

Problem: Plastic bags

Natural Predators: Shorebirds and mongooses, genets, coyotes, dogs, coatis, raccoons, monitor lizards, ghost crabs ranging from little plovers to large gulls in shore. sharks, requiem, cephalopods and various large fish in seas and ocean

Common threats affecting sea turtle population

  • Habitat degradation and loss
  • Wildlife trade
  • Collection of meat and eggs for consumption
  • Climate change
  • Accidental capture
  • Water pollution

References

Tsang, E. & Milicich, M. (1999) Study on the suitability of South Lamma to be established as marine park. Final report. Submitted to the Agriculture, Fisheries and Conservation Department, The Hong Kong SAR Government.

Katona, S. K.; Rough, V.; Richardson, D. J. (1983). A field guide to the whales, porpoises and seals of the Gulf of Maine and eastern Canada, Cape Cod to Newfoundland. Charles Scribner’s Sons. New York. 1-255

King, C.M.; Roberts, C.D.; Bell, B.D.; Fordyce, R.E.; Nicoll, R.S.; Worthy, T.H.; Paulin, C.D.; Hitchmough, R.A.; Keyes, I.W.; Baker, A.N.; Stewart, A.L.; Hiller, N.; McDowall, R.M.; Holdaway, R.N.; McPhee, R.P.; Schwarzhans, W.W.; Tennyson, A.J.D.; Rust, S.; Macadie, I. (2009). Phylum Chordata: lancelets, fishes, amphibians, reptiles, birds, mammals. in: Gordon, D.P. (Ed.) (2009). New Zealand inventory of biodiversity: 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. pp. 431-554

Zug, G. R. 2009. Reptiles (Vertebrata: Reptilia) of the Gulf of Mexico, Pp. 1317–1320 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.