Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335); ismailiaensis: Named on geographical basis since it was collected from Ismailia city in the north of Egypt (Ref. 47363).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Brackish; benthopelagic. Temperate
Africa: Ismailia Canal, Egypt (Ref. 47363).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 19.1 cm TL male/unsexed; (Ref. 47363)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 11 - 14; Anal spines: 3; Anal soft rays: 8 - 11; Vertebrae: 27 - 32. Head with straight profile; mouth terminal, oblique, moderately large; maxillary extending to below the anterior border of the orbit (Ref. 47363). Ventral fin reaching the vent; the pectoral fin reaching beyond the origin of anal fin; caudal fin truncate, more or less oblique in some cases; the last dorsal soft fin ray extending to the dorsal origin of caudal fin (Ref. 47363). Caudal peduncle as long as deep or a little deeper than long; ventral outline straight or slightly rounded (Ref. 47363). Scales not denticulate; two lateral lines present; the majority of scales of the dorsal one pored (Ref.47363).
General body colour pale grey-silver, darker below the dorsal fin and on the dorsal side of the head; belly being usually white; 8 black vertical bars on the body, the first one partly developed; a black dorsal opercular spot present (Ref. 47363). Dorsal fin with oblique black striations on their posterior soft rays, no tilapia mark on the dorsal fin; caudal fin dark red without vertical stripes; a black pyramid present, its base at the caudal fin base, its top extending to fin margin; anal fin reddish with a black anterior base (Ref. 47363). Eye with black iris, with a red circle around the pupil (Ref. 47363).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mekkawy, I.A.A., 1995. Description of Oreochromis ismailiaensis sp. N., and its hybrid with Oreochromis niloticus (Linnaeus, 1758) (Perciformes; Cichlidae) from Egypt. Bull. Fac. Sci., Assiut Univ., 24(2-E):1-27. (Ref. 47363)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
