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

Carcharhinus sorrah | (Müller & Henle, 1839)
Countries in Assessment
United Arab Emirates
Country ISO code(s)
Does the assessment cover a marine EEZ area(s)?
Scope (Assessment)
Taxonomic Group
Taxonomic Group Level 2
Assessed taxon level
Taxon distribution as listed in assessment
The Spottail Shark occurs throughout UAE waters. Globally, it is widespread in the tropical Indo-West Pacific (Last and Stevens 2009).
Habitats and Ecology
Ecological system type
Terrestrial system
Freshwater system
Marine system
Habitat details as listed in assessment
A common, inshore shark, the Spottail Shark is found on continental and insular shelves from close inshore to a depth of at least 140 m (Compagno and Niem 1998). The species is common over mud and sand bottom in depths between 20-50 m but also occurs near coral reefs (Last and Stevens 1994). In the Arabian Seas region, it grows to 196 cm TL (Jabado et al. 2016), which is larger than reported for this species in Australia and southeast Asia (to 160 cm TL) (Ebert et al. 2013). This species is born at 44 - 72 cm TL, males mature at 106-109 cm TL and females at 110-118 cm TL (Ebert et al. 2013, Jabado et al. 2016). It is viviparous with a yolk-sac placenta (White et al. 2006, Compagno et al. 2005). It exhibits a gestation period of 11 months and a reproductive periodicity of one year. Litter size in the region ranges from 2-4 pups/litter (Elhassan unpubl. data). Ageing data from Australia indicates that maturity occurs at 2-3 years and reaches a maximum of 14 years (Davenport and Stevens 1988). Generation length is estimated to be 8 years.
Is there a map available in assessment?
Assessed status
Asessment status in full
Assessment status abreviation
Assessment status criteria
Assessment rationale/justification
The Spottail Shark occurs throughout UAE inshore and offshore waters. It is commonly taken in a wide range of artisanal and commercial fisheries and is often one of the dominant species in shark catches in the Arabian Sea region. Inshore fishing pressure is intense and increasing. Anecdotal information indicates that declines have occurred over the past 20 years in UAE waters; however, quantitative data are not available to estimate the percent decline over three generation lengths (about 24 years). 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 30-50% over the past three generation lengths, or about 24 years. It is listed as Vulnerable A2cd.
About the assessment
Assessment year
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Affliation of assessor(s)/contributors/reviewers listed on assessment
Assessor affiliation specific
Criteria system
Criteria system specifics
IUCN v3.1
Criteria system used
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
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. Marine habitats in the region have experienced high levels of disturbance and are quickly deteriorating due to major impacts from development activities (Sheppard <em style=""font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2; text-align:start;widows: 2;-webkit-text-stroke-width: 0px;text-decoration-style: initial; text-decoration-color: initial;word-spacing:0px"">et al. 2010). Corals in the UAE and Arabian Gulf have severely declined due to the increasing frequency of mass bleaching events caused by rising water temperatures, which is a consequence of climate change, as well as pervasive coastal development (Riegl et al. 2018, Burt et al. 2019).
Conservation Measures

Conservation measures:
Conservation measures notes:
Required conservation measures:

Scientific Name Kingdom Phylum Class Order Family Genus
Carcharhinus sorrah Animalia Chordata Chondrichthyes Carcharhiniformes Carcharhinidae Carcharhinus