Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Nemipteridae
(Threadfin breams, Whiptail breams)
Etymology: Scolopsis: Greek, skolex = worm + Greek, opsis = appearance (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; depth range 1 - 25 m (Ref. 9710). Tropical; 32°N - 36°S, 66°E - 176°W (Ref. 3810)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm TL male/unsexed; (Ref. 9710); common length : 13.0 cm SL male/unsexed; (Ref. 3810)
soft rays: 7. Some geographical variations, especially different between Indian and Pacific Oceans; Pacific form with yellow stripes and yellow dorsal fin, while the Indian ocean form lacks the yellow (Ref. 48635). Head scales reaching to or just in front of anterior nostrils. Lower limb of preopercle scaly. Antrorse (forward-directed) suborbital spine present beneath eye. Pelvic fins long, reaching to or almost to level of origin of anal fin. Axillary scale present. Upper part of body olive or greyish-brown, pearly-white below. 2 narrow yellow stripes on head, another dark red-edged pearly-white stripe from mouth to base of soft dorsal fin. A yellow mid dorsal stripe from above ayes along base of dorsal fin. A whitish patch just below base of posterior half of soft dorsal rays. Juveniles with 3 dark brown stripes on upper part of body, interspaces between stripes yellow.
Indo-West Pacific: Maldives (Ref. 11303) and the Laccadive Islands to Fiji, north to southern Japan, south to Lord Howe Island. Recently reported from Tonga (Ref. 37816).
Common on coral reefs. Adults occur on most reef habitats, usually in pairs, and juveniles inshore or in lagoons or rubble zones (Ref. 48635). Occurs singly or in small aggregations. Feeds on small fishes and benthic invertebrates. A protogynous hermaphrodite (Ref. 9785).
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.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: subsistence fisheries; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01329 (-0.09171 - 0.11830), b=3.05 (2.98 - 3.12), based on LWR estimates for species & family-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.50 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 vulnerability (22 of 100) .