Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Labridae
Etymology: Diproctacanthus: Greek, di = two + Greek, proktos = anus + Greek, akantha = thorn (Ref. 45335).
Environment / Climate / Range
Marine; reef-associated; depth range 2 - 25 m (Ref. 90102), usually 2 - 20 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 19°N - 12°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. 6023)
soft rays: 9 - 11;
Vertebrae: 25. Juveniles with 3 broad black stripes from head to caudal fin where the stripes merge; with growth, lower stripe disappears, upper stripe is less distinct; black caudal fin becomes entirely yellow in adults. Head scales small. Lips thick and fleshy, forming a short tube when mouth is closed. Caudal fin rounded to truncate; pelvic fins rounded.
Western Central Pacific: Philippines, Palau, Indonesia, New Guinea, and Great Barrier Reef.
A solitary species (Ref. 90102) occurring in coral rich areas of shallow lagoons and sheltered seaward reefs. Adults feed mainly on coral polyps while juveniles remove ectoparasites from small territorial fishes (Ref. 2334, 9710). Adults swim in small groups. Usually, only small juveniles clean other fishes (Ref. 48636).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, distinct pairing during breeding (Ref. 205).
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00462 - 0.01887), b=3.05 (2.88 - 3.22), based on LWR estimates for this species & Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.61 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 (18 of 100) .