Taxonomic Remarks
The 3 subspecies were upraised at species rank, as provisionally accepted names, , until more works are conducted on T. acus susbepcies to fix their status.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino associati a barriera corallina; distribuzione batimetrica 0 - ? m. Subtropical; 43°N - , 98°W - 36°E
Western Atlantic: Massachusetts, USA to Brazil. Eastern Atlantic: off Morocco and the Mediterranean (Ref. 5505).
Lunghezza alla prima maturità / Dimensione / Peso / Età
Maturità: Lm 47.3, range 45 - 50 cm
Max length : 153 cm TL maschio/sesso non determinato; (Ref. 26340); common length : 90.0 cm SL maschio/sesso non determinato; (Ref. 3129); peso massimo pubblicato: 3.7 kg (Ref. 4699)
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 20 - 27; Spine anali: 0; Raggi anali molli: 20 - 24; Vertebre: 90 - 95. Diagnosis: body elongate; upper and lower jaws extremely long, forming a stout beak armed with very sharp teeth; gill rakers absent (Ref. 57228, 90102). Nostrils in depression before eyes (nasal pit); pelvic fins abdominal; 20-26 dorsal-fin rays; anal fin short, 9.7-11.7 times in body length; small, black lateral keel on either sides of caudal peduncle; caudal fin deeply forked (Ref. 57228).
Body shape (shape guide): elongated; Cross section: circular.
Inhabits oceanic and neritic waters (Ref. 26340). Feeds on small fishes. Oviparous (Ref. 205). Eggs may be found attached to objects in the water by tendrils on the egg's surface (Ref. 205). Although sold fresh and salted, its market is limited due to the green-colored flesh (Ref. 5217). Circumglobal in tropical seas and divisible into four subspecies (Ref 90102).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Traumatogenic (Ref. 26235)
Usi umani
Pesca: commerciale; Pesce da pesca sportiva: si
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Temperatura preferita (Fonte Biblio.
123201): 20 - 28.5, mean 26.5 °C (based on 1282 cells).
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00049 - 0.00177), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 4.5 ±0.6 se; based on diet studies.
Generation time: 2.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Vulnerabilità della pesca (Ref.
59153): Moderate vulnerability (44 of 100).
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Nutrienti (Ref.
124155): Calcium = 33 [8, 135] mg/100g; Iron = 0.498 [0.212, 1.475] mg/100g; Protein = 17.2 [14.4, 20.3] %; Omega3 = 0.16 [0.06, 0.47] g/100g; Selenium = 16.9 [6.9, 46.1] μg/100g; VitaminA = 102 [14, 608] μg/100g; Zinc = 0.447 [0.259, 0.773] mg/100g (wet weight);