Teleostei (teleosts) >
Scombriformes (Mackerels) >
Trichiuridae (Cutlassfishes) > Trichiurinae
Etymology: Trichiurus: Greek, thrix = hair + Greek, oura = tail (Ref. 45335); nickolensis: Named after the type locality, Nickole Bay, Western Australia (Ref. 50838).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; depth range ? - 79 m (Ref. 49863). Subtropical
Indo-West Pacific: northern Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 70.2 cm TL male/unsexed; (Ref. 49863)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 3; Dorsal soft rays (total): 138 - 143; Anal spines: 1; Anal soft rays: 108 - 117; Vertebrae: 160 - 166. Anterior margin of pectoral fin spine not serrate; first anal spine base situated below 34th-36th dorsal fin rays; total gill raker bases with a long spine 13-18; highest point of supraoccipital crest situated vertically above posterior margin of eye; strong pigmentation on anterior section of dorsal fin membrane; dorsal margin of head concave, in lateral view, rises gently from snout tip to a vertical through middle of orbit then extending more steeply to dorsal fin origin; preanal length 29-32% TL; head length 11-12% TL; upper jaw length 4% TL; predorsal length 7-8% TL (Ref. 49863).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Burhanuddin, A.I. and Y. Iwatsuki, 2003. Trichiurus nickolensis, a new hairtail from Australia belonging to the Trichiurus russelli complex (Perciformes: Trichiuridae). Ichthyol. Res. 50(3):270-275. (Ref. 49863)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00191 (0.00078 - 0.00464), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
4.1 ±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.). |
Fishing Vulnerability (Ref. 59153) |
Low to moderate vulnerability (31 of 100). 🛈 |