Olocefali (chimere) (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).
Eponymy: Not a true eponym as this is named after a ship’s company – the ‘hard-working’ fishers on board the Sealord Corporation fishing vessel ‘Will Watch’, from which the type was collected. (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batidemersale; distribuzione batimetrica 89 - 1365 m (Ref. 116312). Tropical; 34°S - 40°S, 41°E - 59°E (Ref. 116312)
Southwestern Indian Ocean: Southwest Indian Ocean Ridge, northern portion of the Madagascar Ridge, and Walters Shoal. High Seas only.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 83.4 cm TL maschio/sesso non determinato; (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).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: bycatch
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00331 (0.00137 - 0.00798), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Livello trofico (Fonte Biblio. 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Deepwater species with few large eggs.). |
Vulnerabilità della pesca (Ref. 59153) |
High vulnerability (61 of 100). 🛈 |