Sharksonline's Blog

Galapagos shark

Posted on: April 26, 2010

Above the Galapagos shark

1. The Galapagos shark is found mainly off tropical oceanic islands. In the Atlantic Ocean, the Indian Ocean and Pacific. Galapagos sharks are generally found over continental and insular shelves near the coast and preferring rugged reef habitats with clear water and strong converging currents. This shark is known to cross the open ocean between islands. Juveniles are found deeper than 25 m (82 ft) while adults have been reported to a depth of 180 m (590 ft).

2. The Galapagos shark reaches 3.0 m (9.8 ft) long. The maximum reported length is 3.7 m (12 ft) and the maximum reported weight is 85.5 kg (188 lb).

3. When the Galapagos shark are confronted or cornered they may perform a threat display similar to that of the grey reef shark. Arching their backs lowering its pectoral fins and puffing out its gills, gaping its jaw. The shark may also swing its head from side to side so as to keep the perceived threat within its field of vision.

4. The Galapagos sharks feeds on bony fishes and eels, sea bass, flatfish, flatheads, triggerfis and octopuses. They sometimes have mackerel, flyingfish, and squid. As the sharks grow larger they eat rays and smaller sharks of their own species.

5. The Galapagos shark exhibits a viviparous mode of reproduction in which the developing embryos are sustained by a placental connection formed from the depleted yolk sac. Females bear young once every 2–3 years. Mating takes place from January to March. The gestation period is estimated to be around one year the spring following females move into shallow nursery areas and give birth to 4–16 pups. The size at birth has been reported to be 61–80 cm. Males mature at 2.1–2.5 m (6.9–8.2 ft) long and 6–8 years old while females mature at 2.2–2.5 m (7.2–8.2 ft) long and 7–9 years old. The lifespan of this shark is at least 24 years.

6. The Galapagos shark is regarded as dangerous to humans and diving unprotected is not advisable in areas where they are abundant. They are known to approach close to swimmers showing interest in swim fins or hands. As of 2008 the Galapagos shark has been confirmed to have attacked two people one fatal attack in the Virgin Islands and a second non-fatal attack off Bermuda.

All of this info is from


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