Holocephali (helhuvudsfiskar) (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Chimaera: Named for the mythological creature composed of parts of multiple animals, referring to their odd mix of characteristics. (See ETYFish); owstoni: In honor of Alan Owston (1853‒1915), English businessman, yachtsman, and collector of Asian wildlife, who supplied holotype. (See ETYFish).
More on author: Tanaka.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina djupbottenlevande. Deep-water
Northwest Pacific: Sagami Bay, Japan.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 0.2 - 4, mean 2.5 °C (based on 50 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00118 - 0.00673), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming Fec <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).
