Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Nemipteridae
(Threadfin breams, Whiptail breams)
Etymology: Scolopsis: Greek, skolex = worm + Greek, opsis = appearance (Ref. 45335). More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 25 m (Ref. 9785). Tropical; 24°N - 27°S, 94°E - 172°E (Ref. 3810)
Western Pacific: South China Sea to Vanuatu and northwestern Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm TL male/unsexed; (Ref. 9710); common length : 15.0 cm SL male/unsexed; (Ref. 3810)
soft rays: 7. Head scales reaching to or almost to posterior nostrils. Lower limb of preopercle scaly. Antrorse (forward-directed) suborbital spine absent. Pelvic fins long, reaching almost to or beyond level of origin of anal fin. Color: Upper body olive, white below. 2 pearly white stripes on snout in front of eyes. Lower lobe of caudal fin reddish. Juveniles white, with a narrow black stripe along back (only on some specimens) and black midlateral stripe. Some with a yellowish ventral surface. Presence of a black spot between first four dorsal spines. Some color variation between Indian and Pacific populations: juveniles lack yellow stripe in the Indian Ocean population and adults show a contrasting dark back compared to Pacific form (Ref. 48635).
Found on sand bottoms close to reefs. Feed on crustaceans, polychaete worms, mollusks and small fishes (Ref. 3810, 9785). Juveniles may be Batesian mimics of poison-fang blennies, Meiacanthus spp. (M. geminatus and M. vittatus) (Ref. 37816, 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Russell, B.C., 1990. FAO Species Catalogue. Vol. 12. Nemipterid fishes of the world. (Threadfin breams, whiptail breams, monocle breams, dwarf monocle breams, and coral breams). Family Nemipteridae. An annotated and illustrated catalogue of nemipterid species known to date. FAO Fish. Synop. 125(12):149p. Rome: FAO. (Ref. 3810)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 115941)
Threat to humans
Fisheries: subsistence fisheries
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 26.7 - 29.3, mean 28.7 (based on 1950 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.01141 - 0.03825), b=2.99 (2.84 - 3.14), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.52 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .