[10], Hunting is often performed alone, but L. colubrina may also do so in large numbers in the company of hunting parties of giant trevally and goatfish.
One study found that when yellow-lipped sea kraits on Fijian islands were relocated to different islands 5.3 km away, all recaptured individuals were found on their home islands in an average of 30.7 days. The blue-lipped sea krait, blue-banded sea krait, or common sea krait (Laticauda laticaudata) ... Distribution and habitat. [6] In mice, lethal venom doses cause lethargy, flaccid paralysis, and convulsions in quick succession before death. [3], The yellow-lipped sea krait is widespread throughout the eastern Indian Ocean and Western Pacific. It has very potent neurotoxic venom which it uses to prey on eels and small fish. Adult males are more terrestrially active during mating and hunt in shallower water, requiring more terrestrial locomotive ability. A banded sea krait can be distinguished from other krait species by its yellow snout and from true sea... Habitat and Distribution. In addition, females hunt for only one prey item per foraging bout, while males often hunt for multiple items. [4], Body adaptations, especially a paddle-like tail, help yellow-lipped sea kraits to swim. [1] The smoked meat of a related Laticauda species, the black-banded sea krait, is used in Okinawan cuisine to make irabu-jiru (Japanese: イラブー汁, irabu soup). [12][13], Yellow-lipped sea kraits primarily feed on varieties of eels, but also eat small fish. Males and females exhibit sexual dimorphism in hunting behavior, as adult females, which are significantly larger than males, prefer to hunt in deeper water for larger conger eels, while adult males hunt in shallower water for smaller moray eels. Most snakes … [1], The venom of this elapid, Laticauda colubrina, is a very powerful neurotoxic protein, with a subcutaneous LD50 in mice of 0.45 mg/kg body weight. March 2017. [4][14] After hunting, yellow-lipped sea kraits return to land in order to digest their prey. [1] The smoked meat of a related Laticauda species, the black-banded sea krait, is used in Okinawan cuisine to make irabu-jiru (Japanese: イラブー汁, irabu soup). It spends much of its time underwater in order for it to hunt, but returns to land to digest, rest, and reproduce. The snakes can deter predators, such as larger fish, sharks, and birds, by fooling them into thinking that their tail is their head, because the color and movement of the tail is similar to that of the snake's head. [5], Some varieties of eels, which are a primary food source for yellow-lipped sea kraits, may have coevolved resistance to yellow-lipped sea krait venom. The yellow-lipped sea krait is widespread throughout the eastern Indian Ocean and Western Pacific.
The eggs are deposited in crevices where they remain until hatching. If you disable this cookie, we will not be able to save your preferences. [3], The body of the snake is subcylindrical, and is taller than it is wide. Sea kraits are unique among sea snakes. [5] The venom is an α-neurotoxin that disrupts synapses by competing with acetylcholine for receptors on the postsynaptic membrane, similar to erabutoxins and α-bungarotoxins. [20], © Moalboal Reef Species 2020 | Website by PAV. Females are significantly larger, with an average total length of 1,420 mm (56 in) and a tail length of 145 mm (5.7 in). They prefer the open plains of the countryside. [9], Yellow-lipped sea kraits collected near the tip of Borneo had heavy tick infections. Most sea snake bites occur when fishermen attempt to untangle the snakes from their fishing nets. [11], While probing crevices with their head, yellow-lipped sea kraits are unable to observe approaching predators and can be vulnerable.
[19], In the Philippines, yellow-lipped sea kraits are caught for their skin and meat; the meat is smoked and exported for use in Japanese cuisine. Dogs injected with lethal doses produced symptoms consistent with fatal hypertension and cyanosis observed in human sea snake bite victims. [10], Hunting is often performed alone, but L. colubrina may also do so in large numbers in the company of hunting parties of giant trevally and goatfish. [15][16] After courtship, the snakes copulate for about an average of two hours. Banded sea kraits return to their breeding grounds to mate – often migrating long distances to do so. Mating occurs in the water whereby the male will “chase” the female until he become entwined with her.
The head of a yellow-lipped sea krait is black, with lateral nostrils and an undivided rostral scale. [11], While probing crevices with their head, yellow-lipped sea kraits are unable to observe approaching predators and can be vulnerable. [5] The venom is an α-neurotoxin that disrupts synapses by competing with acetylcholine for receptors on the postsynaptic membrane, similar to erabutoxins and α-bungarotoxins. This means that they can live in water, but they can’t go out to sea—they have to stay near the shore. The males then align their bodies with the female and rhythmically contract; the resulting mass of snakes can remain nearly motionless for several days.
The yellow-lipped sea krait is widespread throughout the eastern Indian Ocean and Western Pacific. [4], On average, the total length of a male is 875 mm (34.4 in) long, with a 130 mm (5.1 in) long tail. This means that every time you visit this website you will need to enable or disable cookies again. Because of their affinity to land, yellow-lipped sea kraits often encounter humans, but the snakes are not aggressive and only attack when feeling threatened. [1], There are fewer recorded bites from this species compared to other venomous species such as cobras and vipers as it is less aggressive and tends to avoid humans.
[3] The tail of the snake is paddle-shaped and adapted to swimming. We are using cookies to give you the best experience on our website. Individual yellow-lipped sea kraits return to their specific home islands, exhibiting philopatry. [1], Each year during the warmer months of September through December, males gather on land and in the water around gently sloping areas at high tide. Vagrant individuals have been recorded in Australia, New Caledonia, and New Zealand. [4], When hunting, yellow-lipped sea kraits frequently head into deep water far from land, but return to land in order to digest, shed skin, and reproduce.
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