You can sponsor this page

Trichiurus lepturus  Linnaeus, 1758

Largehead hairtail
Envoyez vos Photos et vidéos
Pictures | Images Google
Image of Trichiurus lepturus (Largehead hairtail)
Trichiurus lepturus
Picture by Flescher, D.


Nigeria country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Nakamura, I. and N.V. Parin, 1993
National Database:

Classification / Names

Actinoptérygiens (poissons à nageoires rayonnées) > Perciformes (Perch-likes) > Trichiuridae (Cutlassfishes) > Trichiurinae
Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Référence principale

Taille / Poids / Âge

Max length : 234 cm TL mâle / non sexé; (Ref. 26340); common length : 100.0 cm TL mâle / non sexé; (Ref. 26999); poids max. publié: 5.0 kg (Ref. ); âge max. reporté: 15 années (Ref. 7142)

Length at first maturity
Lm 46.3, range 30 - 99 cm

Environnement

; marin; saumâtre benthopélagique; amphidrome (Ref. 51243); profondeur 0 - 589 m (Ref. 58018), usually 100 - 350 m (Ref. 35388)

Climat / Gamme

Subtropical, preferred 26°C (Ref. 107945); 49°N - 54°S, 114°W - 180°E (Ref. 54931)

Distribution

Circumtropical and temperate waters of the world. Trichiurus japonicus which was originally described from Japan as Trichiurus lepturus japonicus was synonymized with Trichiurus lepturus. Another nominal species synonymized with Trichiurus lepturus is Trichiurus nitens from the eastern Pacific Ocean (California to Peru).
Pays | Zones FAO | Écosystèmes | Occurrences | Introductions

Description synthétique

Épines dorsales (Total): 3; Rayons mous dorsaux (Total): 130-135; Rayons mous anaux: 100 - 105. Body extremely elongate, compressed and tapering to a point. Mouth large with a dermal process at the tip of each jaw. Dorsal fin relatively high; anal fin reduced to minute spinules usually embedded in the skin or slightly breaking through; anterior margin of pectoral fin spine not serrated. Pelvic and caudal fins absent. Lateral line beginning at the upper margin of the gill cover, running oblique to behind the tip of the pectoral fins, then straight close to the ventral contour. Fresh specimens steely blue with silvery reflections, becoming uniformly silvery gray sometime after death (Ref. 6181).

Biologie     Glossaire (ex. epibenthic)

Generally over muddy bottoms of shallow coastal waters (Ref. 9351). Often enter estuaries (Ref. 9351). Juveniles feed mostly on euphausiids, small pelagic planktonic crustaceans and small fishes; adults feed mainly on fishes and occasionally on squids and crustaceans (Ref. 6181). Adults and juveniles have opposing complementary vertical diurnal feeding migration. Large adults usually feed near the surface during the daytime and migrate to the bottom at night. Juveniles and small adults form schools 100 m above the bottom during the daytime and form loose feeding aggregations at night near the surface. Pelagic eggs (Ref. 35388) and larvae (Ref. 6768). Max weight of 1.5 kg given in Ref. 28023 seems too low. The current angling world record was caught in Rio de Janeiro's Guanabara Bay and weighed 3.69 kg. Commercial fisherman have caught fish of up to 5 kg (Capt. Eduardo Baumeier, pers. Comm., 2001). Marketed salted or dried and also frozen (Ref. 9351). Excellent taste when fried or grilled; also for sashimi when fresh.

Statut dans la liste rouge de l'IUCN (Ref. 115185)

Menace pour l'homme

  Harmless



Utilisations par l'homme

Pêcheries: hautement commercial; pêche sportive: oui

Plus d'informations

Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
Collaborateurs
Images
Stamps, Coins
Sons
Ciguatera
Vitesse
Type de nage
Surface branchiale
Otolithes
Cerveaux
Vision

Outils

Articles particuliers

Télécharger en XML

Sources Internet

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Niveau trophique (Ref. 69278)
4.4   ±0.4 se; Based on diet studies.

Résilience (Ref. 69278)
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.25-0.29; tm=2; tmax=15)

Vulnérabilité (Ref. 59153)
Moderate to high vulnerability (51 of 100)
Catégorie de prix (Ref. 80766)
High