Mobula eregoodoo | UAE National Red List of Marine Species: Reef-building corals, cartilaginous fishes and select bony fishes

Taxa
Mobula eregoodoo | (Cantor, 1849)
Location
Countries in Assessment
United Arab Emirates
Country ISO code(s)
ARE
Does the assessment cover a marine EEZ area(s)?
Off
Scope (Assessment)
National
Taxon
Taxonomic Group
Vertebrates
Taxonomic Group Level 2
Fishes
Assessed taxon level
Species
Taxonomic Notes
Combined morphological and molecular data led Last et al. (2016) and White et al. (2017) to conclude that Mobula eregoodootenkee is a junior synonym of M. kuhlii. However, Hosegood et al. (2019) suggested these were separate species, which was supported by Notarbartolo di Sciara et al. (2020), who also clarified the nomenclature as M. eregoodoo.
Taxon distribution as listed in assessment
The Longhorned Pygmy Devil Ray occurs throughout UAE waters. Globally, it is widespread in the tropical Indo-West Pacific (Notarbartolo di Sciara et al. 2017).
Habitats and Ecology
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
Yes
Habitat
Habitat details as listed in assessment
This ray is not known to penetrate the epipelagic zone. Mating and birthing occur in shallow water, and juveniles remain in these areas. The Longhorned Pygmy Devil Ray reaches a maximum size of approximately 100 cm disc width (DW). The neotype for this species, a male of 96.9 cm DW, was sexually mature (Notarbartolo-Di-Sciara 1987). These rays are ovoviviparous (uterine viviparity), usually producing one offspring per litter. Intrinsically, Manta and Mobula rays have among the lowest productivity of any chondrichthyan (Pardo et al. 2016). As there is not enough data to estimate an exact generation length for this species, an approximate, suspected generation length is used. A midway point of 7.5 years between a very conservative low of five years, and the larger Spinetail Devil Ray's 10-year generation length is suspected to be the approximate generation length for the Longhorned Pygmy Devil Ray until more accurate information becomes available (Cuevas-Zimbron et al. 2013).
Is there a map available in assessment?
Yes
Assessed status
Asessment status in full
Near Threatened
Assessment status abreviation
NT
Assessment status criteria
A2d
Assessment rationale/justification
The Longhorned Pygmy Devil Ray occurs throughout UAE waters and may be locally common there. There is a total ban on fishing for this species in UAE waters. It may be a synonym of Mobula kuhlii according to some workers. It is a component of the bycatch in several fisheries, but much of this catch is unreported. It is directly targeted in Sri Lanka (if it occurs there) and India, and exported to international markets, especially China where the gill plates are highly-valued. When captured in the Red Sea and Arabian Gulf, it is typically discarded alive, and significant declines are not suspected there at this time. Its low productivity causes it to be susceptible to rapid population declines when experiencing exploitation. It is especially susceptible to exploitation (target and bycatch) in many largely unregulated gill net, longline and trawl fisheries that operate within its range outside and surrounding UAE waters. Some management measures are now in place in the Arabian Sea region, although domestic fisheries are likely to continue. Though data specifically from the UAE are not available, individuals in the UAE are a component of a larger, interconnected and migratory population that occurs broadly in the north-western Indian Ocean. It is inferred that declines reported in the Arabian Sea region are representative of its status in the UAE. Based on recorded levels of exploitation, it is suspected to have declined by 20-30% over the past three generation lengths, or about 23 years. It is listed as Near Threatened, nearly meeting the thresholds for Vulnerable A2d.
About the assessment
Assessment year
2019
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Affliation of assessor(s)/contributors/reviewers listed on assessment
Government
IGO
Assessor affiliation specific
Government|IGO
Criteria system
Criteria system specifics
IUCN v3.1
Criteria system used
IUCN
Criteria Citation
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1, Second edition. IUCN, Gland, Switzerland and Cambridge, UK. iv + 32pp pp. And IUCN. 2012. Guidelines for Application of IUCN Red List Criteria at Regional and National Levels: Version 4.0. Gland, Switzerland and Cambridge, UK: IUCN. iii + 41pp.
Endemism
Endemic to region
Not_assigned
Endemism Notes
Is an endemic?: Not_assigned
Conservation
Threats listed in assessment
Information pertaining to threats specific to the UAE are unavailable. This species is impacted by target (for fins and their valuable meat) and bycatch fisheries that are active elsewhere in its range. Manta rays are easy to target because of their large size, slow swimming speed, aggregation behaviour and predictable habitat use.
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Scientific Name Kingdom Phylum Class Order Family Genus
Mobula eregoodoo Animalia Chordata Chondrichthyes Myliobatiformes Mobulidae Mobula