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

Taxa
Aetomylaeus nichofii | (Bloch & Schneider, 1801)
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
Aetomylaeus caerulofasciatus has recently been described as distinct from the wider-ranging Indo-West Pacific A. nichofii (White et al. 2015).
Taxon distribution as listed in assessment
The Banded Eagle Ray occurs throughout UAE waters (Randall 1995, Carpenter 1997, Hellyer and Aspinall 2005, Environment Agency Abu Dhabi unpublished data). Globally, it is widespread in the Indo-West Pacific (Spaet and Berumen 2015, Last et al. 2016).
Habitats and Ecology
Ecological system type
Terrestrial system
No
Freshwater system
No
Marine system
Yes
Habitat
Habitat details as listed in assessment
The Banded Eagle Ray is a demersal species in continental shelf inshore waters to at least 115 m depth (Last and Stevens 2009). It reaches a maximum size of 72 cm disc width (DW) with males maturing at 39-42 cm DW (Last et al. 2016). Size at maturity for females is unknown, but pregnant females have been recorded in the UAE at 54.8 cm DW (R.W. Jabado pers. comm. 06/05/2017). Females are viviparous with litters of up to four young with a size at birth of 17 cm DW (Compagno and Last 1999, Last and Stevens 2009). Nothing else is known of this species' biology. Generation length estimated at 10 years based on the generation length of the Bat Ray (Myliobatis californicus) (14.5 years) (Martin and Cailliet 1988). However, it is noted that the Bat Ray is a considerably larger species (reaching 180 cm DW) than the Banded Eagle Ray.
Is there a map available in assessment?
Yes
Assessed status
Asessment status in full
Vulnerable
Assessment status abreviation
VU
Assessment status criteria
A2cd
Assessment rationale/justification
The Banded Eagle Ray occurs throughout UAE inshore waters, and is common. This species is not targeted or valued in markets of the UAE and trawling has been banned there since 1980. It is caught as bycatch in inshore gill net fisheries. It is under extremely intense and increasing demersal fishing pressure in much of the Arabian Sea region, and declines have been detected in Pakistan, India and the Red Sea. The loss and degradation of coastal habitats in the Gulf is a significant concern. 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 and decline in habitat quality, it is suspected to have declined by at least 30% over the past three generation lengths, or about 45 years. It is listed as Vulnerable A2cd.
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
This species is impacted by fisheries in the UAE and forms a relatively large portion of all landed batoids. It is impacted by bycatch fisheries that are active elsewhere in its range as well. Marine habitats in the Gulf are experiencing high levels of disturbance and quickly deteriorating due to major impacts from development activities (including dredging and reclamation), desalination plants, industrial activities, habitat destruction through the removal of shallow productive areas and major shipping lanes (Sheppard et al. 2010).
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Scientific Name Kingdom Phylum Class Order Family Genus
Aetomylaeus nichofii Animalia Chordata Chondrichthyes Myliobatiformes Myliobatidae Aetomylaeus