Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Haemulidae
(Grunts) > Plectorhinchinae
Etymology: Diagramma: Greek, diagramma = mark out by lines (Ref. 45335). More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 50 m (Ref. 58304). Tropical
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Indian Ocean: Kenya to Durban, Comoros, Madagascar and Seychelles.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm SL male/unsexed; (Ref. 58304)
Morphology | Morphometrics
(total): 9 - 10;
soft rays: 7. This species possess the following characters: D IX-X, 21-25, with anterior spines elongated in small juveniles and with 2nd and 3rd longest in adults; pectoral fin rays 17-18, fin shorter than head and subequal to pelvic fins; lateral line scales 56-66; gill rakers 3-9/14-15; adult's lips swollen. Adults and subadults which are 30-100 cm long with uniform silvery grey or with numerous dark brown or black dots on head and dorsal part of the body; subadults with slightly larger orange-brown spots scattered dorsally on the head, body and peduncle. Juveniles of about 12 cm are grey or yellow, with broad black band from snout through eye to end of tail fin; another band from top of head to rear of dorsal fin; curving black band over front and basal 2/3 of dorsal from and black margins on pelvic and anal fins, and corners of tail fin; additional stripes appear with growth, at ca. 20 cm, stripes break up into spots (Ref. 58304);
Juveniles in seagrass beds. Large adults solitary or in small groups. Caught with line and apparently an excellent food fish (Ref. 58304).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing during breeding (Ref. 205).
Heemstra, P.C. and E. Heemstra, 2004. Coastal fishes of Southern Africa. National Inquiry Service Centre (NISC) and South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown. 488 p. (Ref. 58304)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.9 - 27.6, mean 26.8 (based on 60 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High to very high vulnerability (67 of 100) .