Holocephali (chimeren) (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: hydro-, combining form of hydor (Gr.), water; lagos (Gr.), hare, i.e., “water rabbit,” probably referring to three pairs of tooth plates, which tend to protrude from the mouth like a rabbit’s incisors (See ETYFish); purpurescens: Latin for purple-tinged, referring to its purplish or plum color (See ETYFish).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 1150 - 1951 m (Ref. 58302). Temperate
Pacific Ocean: Japan and the Hawaiian Islands.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Nakaya, K., 1984. Chimaeridae. p. 17. In H. Masuda, K. Amaoka, C. Araga, T. Uyeno and T. Yoshino (eds.) Fishes of the Japanese Archipelago. Tokai Univ. Press, Tokyo, Japan. 437 p, 370 pls. (Ref. 11099)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 1.4 - 1.7, mean 1.5 °C (based on 499 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00137 - 0.00798), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming Fec <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
