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Teleostei (teleosts) > Lophiiformes (Anglerfishes) > Chaunacidae (Sea toads o coffinfishes)
Etymology: Chaunax: Greek, chaunax, -akos = a conceited man (Ref. 45335); russatus: Name from Latin 'russatus' or clothed in red; referring to the uniform bright red colour of the body and fins..

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; benthopelagic; depth range 512 - 1200 m (Ref. 93086). Deep-water

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Southwest Pacific: North I. and northern South I. of New Zealand north of the subtropical convergence; from s. Lord Howe Rise, West Norfolk Ridge, s. Kermadec Ridge, n slope of Chatham Rise to e. of Chatham Is. and Louisville Rdige (Ref. 93086). With specimens collected from the western Indian Ocean, it is now thought to exhibit a trans-Indian Ocean distribution (Ref. 94130).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 23.3 cm SL male/unsexed; (Ref. 93086)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 3; Dorsal soft rays (total): 12; Anal soft rays: 6 - 7. This species which is a member of the C. abei-species group possess a broad illicial trough that is wider than the eye pupil diameter and has a uniformly deep red body; further distinguished from its congeners in having the modally 1spine on each side of lateral-line neuromast; modally 12 pectoral-fin rays; caudal peduncle wide and stout; illicium short and stout; esca large with numerous bright red cirri; greyish gill chamber and gill arches; gill rakers - GRi = 17-18 (3-4+13-15); GRii = 14-15; GRiii = 14-15; GRiv = 12; lateral-line neuromast counts: AB = 11-12 (modally 12); AC = 8; BB' = 4-5 (4); BD = 2-3 (2); CD = 6-7 (7); EF = 4-5 (4); FG = 4-5 (4); GH = 11-14 (13); BI = 32-39 (Ref. 93086).

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Main reference Upload your references | References | Coordinator : Ho, Hsuan-Ching | Collaborators

Ho, H.-C., C.D. Roberts and A.L. Stewart, 2013. A review of the anglerfish genus Chaunax (Lophiiformes: Chaunacidae) from New Zealand and adjacent waters, with descriptions of four new species. Zootaxa 3620(1):089-111. (Ref. 93086)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 12 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 2.3 - 8.6, mean 6.8 °C (based on 153 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01905 (0.00762 - 0.04763), b=3.02 (2.80 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.7 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (18 of 100).

Chaunax russatus Ho, Roberts & Stewart, 2013