Biology
provided by Arkive
Very little is known about the biology of the pygmy devilray but mating is known to take place in shallow water, with each litter usually comprising just one offspring (1). In a form of reproduction known as ovoviviparity, the embryo develops in a membranous egg within the mother. After hatching, it remains in the mother and continues to be nourished by the yolk sac until it is ready to emerge. Like other mobulid species, adult and juvenile pygmy devilrays feed on plankton and small fish (1) (5).
Conservation
provided by Arkive
There are no conservation measures in place for the pygmy devilray.
Description
provided by Arkive
In many ways, the pygmy devilray resembles its larger and more iconic relative, the manta ray (3). Large pectoral fins, fused to the sides of its head, form a diamond shaped wing-like disc, which it gracefully strokes up and down to move efficiently through the water column (3) (4) (5). From above, its body is broadly brownish-grey, but underneath it is mostly white (6). Extending forward from either side of its head are two prominent lobes that funnel plankton into the mouth on the underside of its head (4) (5). The eyes are positioned on the side of the head and the broad gill openings are situated underneath the front half of the pectoral fins (5). A thin, spineless tail projects from the rear of its flattened body (3) (5).
Habitat
provided by Arkive
Usually found near the surface of coastal waters (1) (2).
Range
provided by Arkive
The pygmy devilray is found in tropical coastal waters of the Indian Ocean and the Western Pacific Ocean, from South Africa north to the Red Sea and eastwards as far as Vietnam, New Guinea and northern Australia. It has not been recorded from oceanic islands (1) (2).
Status
provided by Arkive
Classified as Near Threatened (NT) on the IUCN Red List (1).
Threats
provided by Arkive
Although only marketed in Thailand, and possibly other parts of southeast Asia, the pygmy devilray is caught as bycatch in several fisheries in other parts of its range (1) (2). As this species is likely to have a low reproductive output, there are concerns that fishing pressure could be having a signifincat impact on the stability of its global population (1).
Diagnostic Description
provided by Fishbase
Brownish-grey above, whitish below (Ref. 11228). Underside of pectorals with semicircular black blotch along middle of anterior edge (Ref. 11228).
- Recorder
- Cristina V. Garilao
Life Cycle
provided by Fishbase
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Trophic Strategy
provided by Fishbase
Occurs in coastal and oceanic waters (Ref. 30573). Found on the continental shelf (Ref. 75154). Not known to penetrate the epipelagic zone (Ref. 9911). Feeds on plankton.
- Recorder
- Drina Sta. Iglesia
Biology
provided by Fishbase
Found in coastal and oceanic waters (Ref. 30573); solitary of aggregations, sometimes with 50 or more individuals (Ref. 90102). Not known to penetrate the epipelagic zone (Ref. 9911). Feeds on plankton (Ref. 30573). Ovoviviparous (Ref. 50449).
- Recorder
- Cristina V. Garilao
Mobula eregoodootenkee
provided by wikipedia EN
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 and possibly elsewhere in southeast Asia.
References
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^ Rigby, C.L., Barreto, R., Carlson, J., Fernando, D., Fordham, S., Francis, M.P., Jabado, R.W., Liu, K.M., Marshall, A. & Romanov, E. (2020). "Mobula eregoodootenkee". IUCN Red List of Threatened Species. 2020: e.T41832A166793082. Retrieved 17 July 2020.
{{cite journal}}: CS1 maint: multiple names: authors list (link) -
^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
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Mobula eregoodootenkee: Brief Summary
provided by wikipedia EN
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 and possibly elsewhere in southeast Asia.
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- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Media related to Mobula eregoodootenkee at Wikimedia Commons