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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]
A pink manta ray has been observed in Australia's Great Barrier Reef and scientists believe this could be due to a genetic mutation causing erythrism. [24] The fish, spotted near Lady Elliot Island, is the world's only known pink manta ray. [25] [26] M. alfredi with mouth closed, cephalic fins rolled and ventral surface showing distinctive markings
The manta ray, here seen at Hin Daeng, Thailand, is the largest ray. Both the largest species of this order and the largest of all rays is the giant oceanic manta ray (Manta birostris). This peaceful leviathan can reach a size of 3,000 kg (6,600 lb), a "disk" width of 9.1 m (30 ft) and a total length of 5 m (16 ft). [44]
The global population size is unknown, ... Florida Manta project, advancing our understanding of this unique species," said Calusa Horn, NOAA's southeast region giant manta ray coordinator. ...
US tests giant ‘Manta Ray’ drone submarine for long-distance underwater missions. Alexander Butler. May 2, 2024 at 6:47 AM. ... The Manta Ray prototype uncrewed underwater vehicle ...
Manta Matcher is a pattern-matching software that eases researcher workload; key spot pattern features are extracted using a scale-invariant feature transform (SIFT) algorithm, [5] which can cope with complications presented by highly variable spot patterns and low contrast photographs.
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The first difference could be the size because the giant oceanic manta ray is bigger than the reef manta ray, 4 to 5 m (13–16 ft) on average versus 3 to 3.5 m (9.8–11.5 ft) on average. [7] However, if the observed rays are young, their size can easily bring confusion.