Striped Loggerhead Shark (Cephaloscyllium Fasciatum)

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Striped Loggerhead Shark (Cephaloscyllium Fasciatum)
Striped Loggerhead Shark (Cephaloscyllium Fasciatum)

Video: Striped Loggerhead Shark (Cephaloscyllium Fasciatum)

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The Reticulated swell shark does not exceed 42 cm in length. It is found only in the western Pacific Ocean off the coast of Vietnam, China and the Philippines. The main food of striped logged sharks is invertebrates, small fish, crustaceans, larvae. Oviparous fish. All large cartilaginous and bony fish of larger sizes are enemies of the striped logged sharks of this species.

Appearance

The striped loggerhead sharks are characterized by a strong, thick body, flat, small head, short, rounded snout. The nostrils are wide with fairly narrow nasal valves. The mouth is long, arched, without labial grooves.

The eyes are set high on the head. They have an oval shape (much longer in length than in width) and a nictitating membrane. The pupils are narrow, slit-like. The squirt is located just behind the eyes. There are five pairs of gill slits. They are located almost vertically, have approximately the same length, except for the fifth branchial slit, which is longer than the others and more inclined towards the tail. The fifth slit is located at the base of the pectoral fins.

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The dorsal fins are located in the tail. The first dorsal fin is several times larger than the second. It has the shape of a non-equilateral triangle with a rounded tip. The second dorsal fin is small and strongly rounded. It starts almost immediately after the first dorsal fin and ends 2–3 cm before the beginning of the caudal fin. The pectoral fins are wide and large. The pelvic fins are small. The second dorsal, anal, and pelvic fins are approximately the same size. The anal fin is located under the second dorsal fin. The caudal fin is about 10 cm long and has an underdeveloped lower lobe.

Striped loggerhead shark (Cephaloscyllium fasciatum), drawing picture of a fish
Striped loggerhead shark (Cephaloscyllium fasciatum), drawing picture of a fish

Color

The striped loggerhead sharks are light brown in color with the exception of the belly, which is light gray in color. All over the body (except for the abdomen) are narrow dark brown curved lines, rings, large dots (small spots) that form a characteristic reticular pattern. On the back of adults there are also subtle saddle spots. Subtle dark spots may be present on the belly and underside of the head of sharks.

The size

Small fish. The largest ever caught of this species was a male 42 cm long. Since females are usually larger than males, it can be assumed that their bodies are about 48-50 cm in length, but there is no evidence of this yet.

Area

The striped loggerhead shark has a small habitat. It is found only in the western part of the Pacific Ocean off the coast of Vietnam, China (Hainan Island and Guangxi Zhuang Autonomous Region) and the Philippines (northern islands). The habitation of sharks of this species in the waters of Australia (Western Australia) was recently refuted by zoologists Ebert and White, who proved that the species living off the coast of Australia should be considered as an independent species (now it has the name Cephaloscyllium hiscosellum - Australian reticulated swelling shark).

Habitat

Inhabits the continental shelf and the upper continental slope. Prefers coral reefs and muddy bottom. The striped swelling shark lives at a depth of 200 to 450 meters.

Striped loggerhead shark (Cephaloscyllium fasciatum), photo drawing fish
Striped loggerhead shark (Cephaloscyllium fasciatum), photo drawing fish

Nutrition

The main food of striped logged sharks is invertebrates, small fish, crustaceans, larvae. Most likely, these sharks can feed on any food of animal origin they can catch.

Behavior

The striped loggerhead sharks are still poorly understood. Little is known about their behavior. They are slow bottom predators. Like all other sharks of this genus, these sharks can inflate their body, filling it with water or air. This ability allows them to escape from predators or scare them away, as well as survive for about a day without water.

Enemies

Enemies of sharks of this species are all large cartilaginous and bony fish of a larger size that live in a similar environment, as well as parasites. Sea snails eating shark eggs can also be considered enemies.

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Reproduction

Oviparous fish. In two parts of the oviduct, females develop one egg at a time. The eggs have an elongated shape, a strong shell and long, twisted antennae, with the help of which the egg attaches to algae, soil or benthic invertebrates.

Puberty

It occurs when the body is about 36 cm long.

Offspring

The length of newborn sharks is about 12 cm.

Benefits for humans

The striped loggerhead sharks have no commercial value. They end up in fishing nets as a by-catch, but data on their further use are not yet available. Sharks of this species are not dangerous to humans.

Strength and security

Due to the lack of information on the number of large-headed striped sharks, the species was assigned the conservation status "DD" (lack of data).

Lyricist: wolchonokW7

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