Though its large size and huge mouth can create a sinister appearance, this shark is particularly timid.
Despite its vast size, this particular species of shark was only discovered in 1976. Less than ten have been studied or even sighted, and as a result, knowledge is limited.
IUCN Red List of Threatened Species: data deficient
No negative economic effects by the megamouth shark have been reported.
Little is known about the economic importance of the megamouth shark, though sharks in general have proven to be an essential element in the aquatic ecosystem. In areas where sharks were killed because of the belief that they threatened fisheries by preying on certain fish, a significant disruption of the ecosystem (such as overpopulation of small fish and planktonic animals) occurred.
The Megamouth is a filter feeder. It uses its enormous mouth to draw in water and filter out small planktonic animals such as crustaceans and shrimp.
The Megamouth Shark was recently discovered in deep water off of the Hawaiian Islands and near the shores of California, Japan and Western Australia.
Biogeographic Regions: pacific ocean (Native )
The megamouth lives in the deep scattering layer of the ocean. It seems to enjoy warmer climates, though it has been discovered in temperate waters.
Aquatic Biomes: benthic ; coastal
The megamouth Shark is five meters long and weighs approximately 750 kilograms. Its body is cylindrical and flabby, its eyes small, and it swims in stiff, slow movements.
Average mass: 750 kg.
Other Physical Features: bilateral symmetry
The megamouth reproduces sexually through internal fertilization. There are separate sexes, and the offspring are miniature versions of the adult at birth.
