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Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Bothidae (Lefteye flounders)
Etymology: Chascanopsetta: Greek, chaskanon, -ou = a mask used in classicla Greek theatre with the mouth opened + Greek, psetta = grouper (Ref. 45335).
More on author: Norman.

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

Marine; bathydemersal; depth range 494 - 550 m (Ref. 11412). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: Maldives, Japan and the Ryukyu Trough.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 124 - 133; Anal spines: 0; Anal soft rays: 86 - 93; Vertebrae: 59 - 61. Similar to C. lugubris, but differs from it by lower jaw projecting well beyond the tip of the upper jaw, and the length of the lower, longer than head length. Mandibular membrane very thin, forming distinct gular pouch. Length of upper jaw about equal to head length (Ref. 559). Length of lower jaw on ocular side 22.7-26.5% SL, on blind side 22.2-26.9; depth of caudal peduncle 4.0-4.9% SL (Ref. 10737).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Amaoka, Kunio | Collaborators

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)

Least Concern (LC) ; Date assessed: 11 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Life cycle
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Distribution
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Anatomy
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Physiology
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Visual pigment(s)
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Human related
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 2.3 - 10.4, mean 8.7 °C (based on 16 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00912 (0.00408 - 0.02036), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.7 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (19 of 100).

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Chascanopsetta prognatha Norman, 1939