Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Acropomatidae
(Lanternbellies, temperate ocean-basses)
Etymology: Malakichthys: Greek, malakia = softness + Greek, ichthys = fish (Ref. 45335); levis: Named for the absence of tooth-like spines on the chin ('levis' = beardless).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 143 - 256 m (Ref. 44351). Tropical; 11°S - 21°S, 116°E - 126°E (Ref. 57279)
Eastern Indian Ocean: northern Australia, from the North West Cape, Western Australia to Cape Arnhem, Northern Territory.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.9 cm SL male/unsexed; (Ref. 44351)
Morphology | Morphometrics
soft rays: 8. This species is distinct in having the following characters: no paired spines on chin; proximal-middle radial of first anal-fin pterygiophore is broad with cone-shaped hollow lacking lamellar septum; well developed lateral wing; A III, 8; pectoral-fin rays 14; gill rakers on lower arm 20-23; 49-53 scales on lateral line; 5-7 transverse scale rows above lateral line; body depth 26-35% SL (Ref. 76883).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Yamanoue, Y. and K. Matsuura, 2002. Descriptions of two new acropomatid species of the genus Malakichthys (Teleostei: Perciformes) from Australia. Bull. Mar. Sci. 69(3):1139-1147. (Ref. 44351)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 16.8 - 20.4, mean 20.4 (based on 8 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.5 se; Based on size and trophs of closest relatives
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) .