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[46] In August 2024, a female all black body manta ray kept in the Kuroshio tank gave birth. This is the first time in 11 years that a manta ray has birth, and the first case of all black body manta ray birth in the world. The pups were born black all over like their mother, 1.6 metres (5 ft) wide, and weighed 42 kilograms (93 lb). [47]
The Okinawa Churaumi Aquarium houses manta rays in the "Kuroshio Sea" tank, one of the largest aquarium tanks in the world. The first manta ray birth in captivity took place there in 2007. Although this pup did not survive, the aquarium has since had the birth of four more manta rays in 2008, 2009, 2010 and 2011.
The giant oceanic manta ray can grow up to a maximum of 9 m (30 ft) in length [6] and to a disc size of 7 m (23 ft) across with a weight of about 3,000 kg (6,600 lb), [7] [8] but the average size commonly observed is 4.5 m (15 ft). [9]
The pregnancy of a stingray living in a tank without male rays has stirred a sudden interest in parthenogenesis, a scientific term that essentially means virgin birth.
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Capture-induced premature birth and abortion (collectively called capture-induced parturition) occurs frequently in sharks and rays when fished. [7] Capture-induced parturition is rarely considered in fisheries management despite being shown to occur in at least 12% of live bearing sharks and rays (88 species to date).
A manta ray breaching during a study of courtship behaviors off Florida's east coast.
July 24, 2002 Started captivity on display at the Kuroshio Tank. July 28, 2005 Moved from the Kuroshio Tank to the marine cage in Kasasa Town, Kagoshima Prefecture. Body length over 5.4 m (18 ft). Released off the coast of Cape Noma, Kasasa-cho on August 8, 2005. Third generation (female) June 25, 2005 Kagoshima Prefecture Bonotsucho Akime ...