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Migratory Sharks MoU
The Memorandum of Understanding on the Conservation of Migratory Sharks is an international instrument for the conservation of migratory species of sharks. It was founded under the auspices of the Convention on the Conservation of Migratory Species of Wild Animals (CMS; also known as the Bonn Convention). Background Many sharks are apex predators and keystone species, meaning that they are at the top of their food chain and play a crucial role in maintaining the health of marine environments. Sharks whose members cyclically and predictably move large distances are considered migratory and many pelagic (open ocean) shark species fall into this category. The IUCN considers one-third of all shark species as threatened or near threatened. For migratory sharks the situation is worse, with almost 50% being considered as threatened and 27% being considered as near threatened. Relatively little is known about the behavior of migratory sharks; researchers have been surprised by data on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manila
Manila ( , ; fil, Maynila, ), officially the City of Manila ( fil, Lungsod ng Maynila, ), is the capital of the Philippines, and its second-most populous city. It is highly urbanized and, as of 2019, was the world's most densely populated city proper. Manila is considered to be a global city and rated as an Alpha – City by Globalization and World Cities Research Network (GaWC). It was the first chartered city in the country, designated as such by the Philippine Commission Act 183 of July 31, 1901. It became autonomous with the passage of Republic Act No. 409, "The Revised Charter of the City of Manila", on June 18, 1949. Manila is considered to be part of the world's original set of global cities because its commercial networks were the first to extend across the Pacific Ocean and connect Asia with the Spanish Americas through the galleon trade; when this was accomplished, it marked the first time in world history that an uninterrupted chain of trade routes circling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetorhinus Maximus
The basking shark (''Cetorhinus maximus'') is the second-largest living shark and fish, after the whale shark, and one of three plankton-eating shark species, along with the whale shark and megamouth shark. Adults typically reach in length. It is usually greyish-brown, with mottled skin, with the inside of the mouth being white in color. The caudal fin has a strong lateral keel and a crescent shape. Other common names include bone shark, elephant shark, sail-fish, and sun-fish. In Orkney, it is commonly known as hoe-mother (sometimes contracted to homer), meaning "the mother of the pickled dog-fish". The basking shark is a cosmopolitan migratory species, found in all the world's temperate oceans. A slow-moving filter feeder, its common name derives from its habit of feeding at the surface, appearing to be basking in the warmer water there. It has anatomical adaptations for filter-feeding, such as a greatly enlarged mouth and highly developed gill rakers. Its snout is conica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Tarapacana
The Chilean devil ray (''Mobula tarapacana''), also known as the box ray, greater Guinean mobula, sicklefin devil ray or the spiny mobula, is a species of ray in the family Mobulidae. It is often observed worldwide, basking just below the surface in tropical, subtropical and warm temperate oceans, mainly offshore, and occasionally appearing near the coast. It can reach a disc width of up to . Originally believed to be surface dwellers, ''Mobula tarapacana'' have been discovered to feed at depths of up to during deep dives; they are among the deepest-diving ocean animals. Their dives often follow a stepwise pattern, in which the ray dives deeply, then works its way back up by repeatedly "levelling up" for a bit and then moving higher. Sonar observations suggest that rays level up where there are denser layers of prey, suggesting that this is a foraging behavior. Rays display two distinct deep-dive patterns. The stepwise dive pattern, which is usually only performed once every 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Rochebrunei
''Mobula'' is a genus of rays in the family Mobulidae that is found worldwide in tropical and warm, temperate seas. Some authorities consider this to be a subfamily of the Myliobatidae (eagle rays). Their appearance is similar to that of manta rays, which are in the same family, and based on genetic and morphological evidence, the mantas belong in ''Mobula'' (they are traditionally in their own genus ''Manta''). Species of this genus are often collectively referred to as "devil rays", "flying mobula", or simply "flying rays", due to their propensity for breaching, sometimes in a spectacular manner. These rays gather in groups and leap out of the surface into the air up to around two metres before splashing back into the water. Depending on the species, the devil rays can attain widths up to , the largest being second only to the manta rays in size, which can reach . Despite their size, little is known about the devil rays, much of it anecdotal; the manta rays are better known. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Munkiana
''Mobula munkiana'', commonly known as the manta de monk, Munk's devil ray, pygmy devil ray, smoothtail mobula or Munk’s pygmy devil ray is a species of ray in the family Mobulidae. It is found in tropical parts of the eastern Pacific Ocean, ranging from the Gulf of California to Peru, as well as near offshore islands such as the Galapagos, Cocos, and Malpelo. Munk's devil ray was first described in 1987 by the Italian ecologist Giuseppe Notarbartolo di Sciara and named for his scientific mentor, Walter Munk. Description Munk's devil ray is a large fish with a horizontally flattened body, bulging eyes on the sides of its head and gill slits on the underside. It grows to a width of up to , making it the smallest species of devil ray (although it is only slightly smaller than '' M. hypostoma'' and '' M. kuhlii''). On either side of its central disc it has wide, pointed pectoral fins with which it swims. A pair of fleshy lobes protrude from the front of its head, enabling it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Mobular
The devil fish or giant devil ray (''Mobula mobular'') is a species of ray in the family Mobulidae. It is currently listed as endangered, mostly due to bycatch mortality in unrelated fisheries. Description The devil fish is larger than its close relative the lesser devil ray. It grows to a length of disk , making it one of the largest rays. It possesses a spiny tail. The devil fish is the third largest species in the genus ''Mobula'', after the oceanic and reef manta rays. It is the only mobulid species that lives in the Mediterranean Sea. The species has been observed to have a maximum recorded length of disk width of 5.2 meters (roughly 17 feet). However, those data are unreliable and are allegedly misunderstood as Giant oceanic Manta Rays that have strayed into the Mediterranean. It is also considered to be the only Devil fish with a tail spine. The species is also considered endangered given its decreasing population density. Distribution and habitat The Devil fish is m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Kuhlii
''Mobula kuhlii'', the shortfin devil ray, is a species of ray in the family Mobulidae. It is endemic to the Indian Ocean and central-west Pacific Ocean. It ranges from South Africa, Mozambique, Tanzania and the Seychelles in the west to the Philippines and Indonesia in the east, and southward to the northern coast of Australia. Description The shortfin devil ray is a small eagle ray growing to a maximum width of and a weight of . It is flattened horizontally with a wide central disc and the head is short with small cephalic fins. The large pectoral fins have curved tips and the dorsal fin has a white tip. The tail is not tipped with a spine and is shorter than the body. The dorsal surface of this fish is brown and does not bear any placoid scales, and the ventral surface is white. Biology The shortfin devil ray feeds on plankton and possibly also on small fish and squid. It gathers its food by swimming with its mouth open and passing the water over its gill rakers which filte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Japanica
The spinetail devil ray (''Mobula japanica''), also known as the spinetail mobula ray or Japanese mobula ray, is a species of pelagic marine fish which belongs to the family Mobulidae. It is found throughout the tropical and sub-tropical waters of the Indo-Pacific and eastern Atlantic Ocean. Taxonomy Some analyses suggest that the species should be considered conspecific with the devil fish (''Mobula mobular''). It is no longer recognised as a species by the IUCN. Description The spinetail mobula ray is a large ray which can grow up to a maximal width of 3.1 m (average width 2.3 m). Like most rays, it is dorsoventrally flattened and has relatively large triangular pectoral fins on either side of the main body disc. At the front, it has a pair of cephalic fins which are forward extensions of the pectoral fins. These can be rolled up in a spiral for swimming or can be flared out to channel water into the ventral mouth when the animal is feeding. The background body coloration of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Hypostoma
The lesser devil ray (''Mobula hypostoma'') is a ray in the family Mobulidae. They occur along the coasts of the western Atlantic, from North Carolina to northern Argentina. Habitat These rays live in shallow waters and can be found singly or in large shoals. Diet They feed on mostly crustaceans, but will sometimes feed on shoals of smaller fish. Description True to their name, lesser devil rays are relatively small, with a maximum width of about . They have smaller cephalic fins than their larger manta Manta or mantas may refer to: * Manta ray, large fish belonging to the genus ''Manta'' Arts and entertainment Fictional entities * Manta (comics), a character in American Marvel Comics publications * Manta (''Uridium''), a spaceship in the Bri ... cousins, and have longer spineless tails. References * * * External links * {{Taxonbar, from=Q4548397 lesser devil ray Fish of the Western Atlantic Fish of the Dominican Republic Vulnerable fish lesser devil ray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobula Eregoodootenkee
''Mobula eregoodootenkee'', the pygmy devil ray or longhorned mobula, is a species of ray in the family ''Mobulidae''. It is endemic to the Indian Ocean and central-west Pacific Ocean. It ranges from South Africa in the west to the Philippines in the east, north to Vietnam, and south to the northern coast of Australia. It is a brownish-grey colour, with a whitish underside. It grows up to 100 cm wide. The species feeds on plankton and small fish. The longhorned mobula is an ovoviviparous fish, usually giving birth to a single pup in shallow waters. The young stay in these waters until they mature. The ray is likely a bycatch at several fisheries, being entangled in nets meant for other species. It is marketed in Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manta Birostris
The giant oceanic manta ray, giant manta ray, or oceanic manta ray (''Mobula birostris'') is a species of ray in the family Mobulidae, and the largest type of ray in the world. It is circumglobal and is typically found in tropical and subtropical waters, but can also be found in temperate waters. Until 2017, the species was classified in the genus ''Manta'', along with the smaller reef manta ray (''Mobula alfredi''). DNA testing revealed that both species are more closely related to rays of the genus ''Mobula'' than previously thought. As a result, the giant manta was renamed as ''Mobula birostris'' to reflect the new classification. Description The giant oceanic manta ray can grow up to in maximum length and to a disc size of across with a weight of about but average size commonly observed is . It is dorsoventrally flattened and has large, triangular pectoral fins on either side of the disc. At the front, it has a pair of cephalic fins which are forward extensions of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manta Alfredi
Manta or mantas may refer to: * Manta ray, large fish belonging to the genus ''Manta'' Arts and entertainment Fictional entities * Manta (comics), a character in American Marvel Comics publications * Manta (''Uridium''), a spaceship in the British computer game ''Uridium'' * Manta Oyamada, a character in the Japanese manga series ''Shaman King'' * Manta and Moray, amphibious superheroes from the 1970s TV series ''Tarzan and the Super 7'' Film * '' Manta, Manta'', a 1991 German-language action comedy film Music * Death (metal band), an American band known as Mantas (1983–1984) * Jeffrey Dunn (born 1961), known as Mantas, and his band Mantas, formed in 1986 People * Manta (surname) (includes a list of people with that name) * Mantas, a given name and a surname (includes a list of people with that name) * Manta people, nomadic ethnic group in Bangladesh Places * Manta, Benin a town and ''arrondissement'' in Atakora department, Benin * Manta, Cundinamarca, a municipality an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
