Glaucostegus granulatus | UAE National Red List of Marine Species: Reef-building corals, cartilaginous fishes and select bony fishes
Taxa
Glaucostegus granulatus | (Cuvier, 1829)
Publication
Asessment status in full
Endangered
Assessment status abreviation
EN
Assessment status criteria
A2cd
Assessment rationale/justification
The Sharpnose Guitarfish occurs throughout UAE coastal waters, and may be naturally uncommon there. It likely grows slowly and matures late, which causes it to have a low productivity and be particularly susceptible to declines when experiencing exploitation. It is commonly taken in gill net and trawl fisheries, and coastal development is a significant threat. Significant declines of wedgefishes and guitarfishes have been documented in India, Pakistan and Iran. There has been a total ban on fishing for this species in UAE waters in place since 2019. Though data specifically from the UAE are not available, and it is not known how individuals occupying the UAE are connected with the broader population of the Arabian Seas region, there is no information available to suggest that its population status differs in the UAE as compared to other parts of its range in the region. Given the threats faced by this species in other parts of the Arabian Seas region, and ongoing threats from discarding and habitat loss in the UAE, it is inferred that declines reported in the Arabian Seas are representative of the status in the UAE. Based on recorded levels of exploitation and decline in habitat quality, it is suspected to have declined by 50-80% over the past three generation lengths, or about 39 years. It is listed as Endangered A2cd.
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 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.
Endemic to region
Not_assigned
Endemism Notes
Is an endemic?: Not_assigned
Threats listed in assessment
In the UAE, sharks have been impacted by targeted commercial fisheries until 2014 when a ban on export of sharks was imposed (Ministry of Climate Change and Environment). Sharks continue to be impacted by artisanal and bycatch fisheries (Annual Fisheries Statistical Report for Abu Dhabi Emirate 2001-2018), though catch data are not species-specific. This species is impacted by bycatch fisheries that are active elsewhere in its range. This species may also be impacted by coastal development and habitat degradation (Moore et al. 2012), especially since juveniles utilize inshore areas as nursery grounds. Marine habitats in the Gulf are experiencing high levels of disturbance and quickly deteriorating due to major impacts from development activities (including dredging and sea-filling), 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 |
---|---|---|---|---|---|---|
Glaucostegus granulatus | Animalia | Chordata | Chondrichthyes | Rhinopristiformes | Glaucostegidae | Glaucostegus |