Actinopteri (ray-finned fishes) > Pleuronectiformes
(Flatfishes) > Rhombosoleidae
(South Pacific flounders)
Etymology: Peltorhamphus: Greek, pelteos, peltes = a fish named as "korakinos"; when it was salted received the name of "pelte" + Greek, rhamphos = bill (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 1 - 55 m (Ref. 13395), usually 1 - 25 m (Ref. 13395). Temperate; 0°C -
Southwest Pacific: Norfolk Island (Ref. 8879) and New Zealand.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 17.5 cm SL male/unsexed; (Ref. 13395)
Prefers harbors and bays.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
James, G.D., 1972. Revision of the New Zealand flatfish genus Peltorhamphus with descriptions of two new species. Copeia 1972(2):345-355. (Ref. 13395)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 12 - 21.9, mean 17.9 °C (based on 52 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00782 - 0.04043), b=2.97 (2.76 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (16 of 100) .