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Whale Shark and his Fish Companions, Cenderawasih Bay, Indonesia
Whale shark Rhincodon typus is the world's largest fish, which is harmless to humans. Specimens rarely above 12 m. Often seen offshore but coming close inshore, sometimes entering lagoons or coral atolls. Feed on planktonic and nektonic prey, such as small fishes (sardines, anchovies, mackerel, juvenile tunas and albacore), small crustaceans and squids. Often seen in a vertical position with the head at or near the surface when feeding. The Whale sharks Rhincodon typus has a lot of companions: Sharksucker Echeneis naucrates is found in inshore as well as offshore in tropical and warm temperate waters at depths from 20-50 m (66-164 ft). Although known for attaching to a variety of hosts including sharks, rays, large bony fishes, sea turtles and marine mammals as well as sometimes ships, the sharksucker is often observed in free-swimming groups over shallow coral reefs. This species is dependent upon their hosts for survival as they are a poor swimmer and lack a swim bladder. The Golden Trevally, Gnathanodon speciosus is widely distributed throughout the tropical and subtropical waters of the Indian and Pacific Oceans, ranging from South Africa in the west to Central America in the east. The species predominantly occupies inshore waters where it inhabits both reef and sandy substrates. The Golden Trevally is easily distinguished from its relatives by its unique colouration, which ranges from bright yellow with black bars as a juvenile to a golden-silvery colour as an adult. It is known to grow to 120 cm in length and 15 kg in weight. A school of young White trevally, Pseudocaranx dentex. The species is widespread in tropical and warm temperate areas between 40°N and 47°S, in the Atlantic, Mediterranean, Indian and Pacific Oceans. It has dark spot above the gills. The fins are yellow. Maximum size is about 120 cm. Cenderawasih Bay Marine-Park, West Papua, Indonesia 3°18'20" S 134°59'51" E
Whale Shark Underwater Shark

Whale Shark and his Fish Companions, Cenderawasih Bay, Indonesia

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