Overview

Distribution

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

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 111 - 118; Analspines: 0; Analsoft rays: 71 - 81; Vertebrae: 52 - 56
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Size

Max. size

24.6 cm SL (male/unsexed; (Ref. 10737))
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Diagnostic Description

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).
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Type Information

Paratype for Chascanopsetta megagnatha Amaoka & Parin
Catalog Number: USNM 427245
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): N. Parin
Year Collected: 1987
Locality: Pacific
Depth (m): 563 to 590
Vessel: Professor Shtokman
  • Paratype: Amaoka, K. & Parin, N. V. 1990. Copeia. 1990 (3): 718, 1.
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Source: National Museum of Natural History Collections

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Ecology

Habitat

Environment

bathydemersal; marine; depth range 410 - 590 m (Ref. 10737)
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Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 345 - 410
  Temperature range (°C): 8.408 - 10.533
  Nitrate (umol/L): 22.952 - 32.417
  Salinity (PPS): 34.468 - 34.469
  Oxygen (ml/l): 1.949 - 2.881
  Phosphate (umol/l): 1.990 - 2.497
  Silicate (umol/l): 10.431 - 20.496

Graphical representation

Depth range (m): 345 - 410

Temperature range (°C): 8.408 - 10.533

Nitrate (umol/L): 22.952 - 32.417

Salinity (PPS): 34.468 - 34.469

Oxygen (ml/l): 1.949 - 2.881

Phosphate (umol/l): 1.990 - 2.497

Silicate (umol/l): 10.431 - 20.496
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Known from seamounts and knolls
  • Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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Source: World Register of Marine Species

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Conservation

Threats

Not Evaluated
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