Actinopteri (ray-finned fishes) > Beloniformes
(Needle fishes) > Belonidae
Etymology: Platybelone: Greek, platys = flat + Greek, belone = needle; any fish with sharp pointed snout; also Pierre Belon, 1517-64, French zoologist born in Le Mans. Professor at the College de France, author of " La nature et diversité des poissons", 1551 (Ref. 45335).
Considered mostly as a subspecies in the literature. Therefore the upraise at species rank here is considered as a provisionally accepted name, until more works are conducted on P. argalus susbepcies to fix their status.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-neritic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Eastern Atlantic: restricted to Annobon, Fernando Poo and São Tomé in equatorial Gulf of Guinea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm OT male/unsexed; (Ref. 5757); common length : 80.0 cm SL male/unsexed; (Ref. 2683)
Maximum length refers to body length. Inhabits surface waters (Ref. 2683). Circumglobal in tropical seas and divisible into five subspecies (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Collette, B.B. and N.V. Parin, 1990. Belonidae. p. 592-597. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 5757)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00056 - 0.00281), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.2 ±0.7 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
): Moderate vulnerability (39 of 100) .