Taxon name
Crenidens indicus
Day, 1873
Uploaded by
National Red List Database
Taxonomic information
Scientific name
Crenidens indicus
Day, 1873
Assessed taxon level
Species
Higher level taxonomic groupings
Vertebrates
Fishes
Species authority
Day, 1873
Taxonomic notes and synonyms listed
According to Iwatsuki and Maclaine (2013) and Bogorodsky et al. (2017), Crenidens crenidens and C. indicus are two distinct species. Crenidens crenidens occurs from the Red Sea, East Africa along the east coast of Africa to Aliwal Shoal in South Africa. Juvenile C. crenidens have been found in Algoa Bay, South Africa (Heemstra and Heemstra 2004). Crenidens indicus occurs from the southern Arabian Peninsula (occasionally in the Red Sea) to the coasts of Iran and Pakistan, including the Gulf. Bauchot and Smith (1984) reported C. indicus from India; however, C. indicus either does not occur around India or is extremely rare in the area (Iwatsuki and Maclaine 2013).
Location and scope
Specific locality or subnational name or regional name
United Arab Emirates (the)
Scope (of the Assessment)
National
Countries included within the scope of the assessment
United Arab Emirates (the)
Does the assessment cover a marine EEZ area(s)?
Not_assigned
Conservation Status
Assessed as
Least Concern
Criteria system used
IUCN
(see Assessment details)
Assessment rationale/justification
This coastal species occurs throughout UAE waters. It is still referred to as Crenidens crenidens there, but recent taxonomic work confirms that C. indicus is the valid name for the population in the Arabian Gulf to India. There are no known major threats; therefore, it is listed as Least Concern.
Assessment details
Assessors/contributors/reviewers listed
UAE National Red List Workshop
Criteria system used
IUCN
Reference for methods given
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.
Further information
Endemism (according to assessment)
Endemic to region
Not assigned
Taxon distribution as listed in assessment
This species occurs throughout the UAE, but is still referred to as Crenidens crenidens there.Globally, it occurs in the western Indian Ocean from the southern Arabian Peninsula (occasionally in the Red Sea), throughout the Arabian Gulf to Pakistan and Mumbai, India (Iwatsuki and Maclaine 2013, Bogorodsky et al. 2017). Its depth range is 0-15 metres (Bogorodsky et al. 2017).
Is there a map available in assessment?
Yes
Habitat and systems
Ecological system type
Habitat
Habitat details as listed in assessment
This relatively small, coastal species inhabits shallow and muddy, turbid areas in estuaries and bays (Bogorodsky et al. 2017, Jawad et al. 2018). It rarely attains sizes greater than 20 cm total length (Y. Iwatsuki pers. comm. 2013).
Threats and conservation measures listed
Threats listed in assessment
Fishing activity is not known to be driving declines in the UAE at this time.
Publication
Ralph, G.M., Stump, E., Linardich, C., Bullock, R.W., Carpenter, K.E., Allen D.J., Hilton-Taylor, C., Al Mheiri, R., and Alshamsi, O. 2021. UAE National Red List of Marine Species: Reef-building corals, cartilaginous fishes and select bony fishes. 2021. Ministry of Climate Change and Environment, Dubai, United Arab Emirates.
