分類 / Names
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Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Trachonurus: Greek, trachon, -onos = roughness + Greek, oura = tail (Ref. 45335); gagates: Named in reference to the dark scale covering of the body..
More on authors: Iwamoto & McMillan.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 深海魚; 深さの範囲 436 - 1240 m (Ref. 13675). Deep-water; 15°S - 44°S
Western Pacific: Australia and New Zealand.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 47.8 cm TL オス/雌雄の選別がない; (Ref. 13675)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 2; 背鰭 (合計) : 6 - 8. Without a grooved lateral line. Chin barbel 4-8 % of head length. Suborbital width, 13-15%; postorbital length of head 50-55%. Total gill rakers of first arch (mesial) 11-13; second arch (lateral or mesial) 10-13/10-12. Scale rows below mid-base of first dorsal 25-31; over a distance equal to predorsal length usually 35-42; and between pelvic fin base and gill cover 11-14. Mouth moderately large; lips thick and fleshy (Ref. 13675).
A benthic species found on the continental slope (Ref. 75154).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Iwamoto, T. and P. McMillan, 1997. A new grenadier , genus Trachonurus, from New Zealand and Australia (Pisces: Gadiformes: Macrouridae). Mem. Mus. Victoria 56(1):255-259. (Ref. 13675)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 5.7 - 9, mean 7.8 °C (based on 107 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00111 - 0.00431), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (38 of 100).
