Holocephali (chimeren) (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); willwatchi: In honor of the “hard-working” fishers onboard the Sealord Corporation fishing vessel Will Watch, from which holotype was collected. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 89 - 1365 m (Ref. 116312). Tropical; 34°S - 40°S, 41°E - 59°E (Ref. 116312)
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Southwestern Indian Ocean: Southwest Indian Ocean Ridge, northern portion of the Madagascar Ridge, and Walters Shoal.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 83.4 cm TL mannelijk / geslacht onbekend; (Ref. 116312); 97.1 cm TL (female)
This species is collected by midwater and bottom trawls. Maximum length for females is 64.5 cm BDL, 97.1+ cm TL, and for males 51.9 cm BDL, 83.4+ cm TL. The smallest free swimming individual is 11.8 cm BDL, 25.8 cm TL. Females are mature at 51.9 cm BDL, 76.7 cm TL, while males mature at 36.9 cm BDL, 63.8 cm TL (Ref. 116312).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Clerkin, P.J., Ebert, D.A. and J.M. Kemper, 2017. New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean. Zootaxa 4312(1):1-37. (Ref. 116312)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Deepwater species with few large eggs.).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).