Overview

Comprehensive Description

Biology

Collected in channels (Ref. 33412). Benthic (Ref. 58302).
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Distribution

Pacific Ocean: Kinmei and Kanmu Seamounts of the Emperor Seamount Chain (Ref. 37208) and from the Hawaiian Islands.
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Northern Central Pacific: Hawaiian Ridge endemic.
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Physical Description

Morphology

Dorsal spines (total): 4; Dorsal soft rays (total): 8; Analspines: 0; Analsoft rays: 7; Vertebrae: 21
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Size

Max. size

13.1 cm SL (male/unsexed; (Ref. 33412))
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Diagnostic Description

Adult females have a higher first dorsal fin than the adult males, and the first dorsal spine is more filamentous than that of the male (Ref. 33412). The third membrane of first dorsal fin with a large dark mark; posterior tip of preopercular spine straight and not curved upward; lower half of caudal fin rays elongate and filamentous in male (Ref. 37208).
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Ecology

Habitat

Environment

bathydemersal; marine; depth range 220 - 532 m (Ref. 33412)
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Depth range based on 3 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 350 - 512.1
  Temperature range (°C): 9.548 - 11.510
  Nitrate (umol/L): 13.644 - 19.653
  Salinity (PPS): 34.172 - 34.358
  Oxygen (ml/l): 4.402 - 4.673
  Phosphate (umol/l): 1.107 - 1.479
  Silicate (umol/l): 21.868 - 34.251

Graphical representation

Depth range (m): 350 - 512.1

Temperature range (°C): 9.548 - 11.510

Nitrate (umol/L): 13.644 - 19.653

Salinity (PPS): 34.172 - 34.358

Oxygen (ml/l): 4.402 - 4.673

Phosphate (umol/l): 1.107 - 1.479

Silicate (umol/l): 21.868 - 34.251
 
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Conservation

Threats

Not Evaluated
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