Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

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); megagnatha: From the Greek megas for large and gnathos for jaw, in reference to the large mouth.

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

Marine; bathydemersal; depth range 410 - 590 m (Ref. 10737). Deep-water

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

Southeast Pacific: known from three seamounts on the Sala y Gomez Ridge, between Chile and Easter Island.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 24.6 cm SL male/unsexed; (Ref. 10737)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 111 - 118; Anal spines: 0; Anal soft rays: 71 - 81; Vertebrae: 52 - 56. About one-fourth to one-third of lower jaw length projecting anterior to upper jaw symphysis; upper jaw length 0.98-1.18 in HL, lower jaw length 0.67-0.83; pectoral fins asymmetrical, fin on ocular side slightly longer than on blind side (Ref. 10737).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

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

Amaoka, K. and N.V. Parin, 1990. A new flounder, Chascanopsetta megagnatha, from the Sala-y-Gomez Submarine Ridge, Eastern Pacific Ocean (Teleostei: Pleuronectiformes: Bothidae). Copeia 1990(3):717-722. (Ref. 10737)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 19 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Introductions
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
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Aquaculture profiles
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Ciguatera cases
Stamps, coins, misc.

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References
References

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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 10.6 - 11.4, mean 11.1 °C (based on 14 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=3.04 (2.85 - 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 (20 of 100).

Chascanopsetta megagnatha Amaoka & Parin, 1990