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Overview

Comprehensive Description

Biology

Bathypelagic at 0-200 m at night, 425-1500 m during day (Ref. 58302). Epipelagic to mesopelagic (Ref. 31442). Depth range is between 300 to 600m during the day, and from 25 to 300 at night (Ref. 54154). Reported to feed on crustaceans (Ref. 6885). Oviparous, with planktonic eggs and larvae (Ref. 31442).
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Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Circumglobal in tropical through cold temperate seas, including Hawaiian Islands.
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Circumglobal. Common south of 35°N. North Pacific: off Japan (Ref. 11721), Hawaii (Ref. 11750), and from off southern British Columbia, Canada to southern California, USA. Western Central Atlantic: Cuba. Southeast Atlantic: Agulhas Current Region (Ref. 41388).
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 13 - 15; Analspines: 0; Analsoft rays: 13 - 16; Vertebrae: 35 - 38
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Size

Maximum size: 184 mm TL
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Max. size

18.4 cm TL (male/unsexed; (Ref. 4925))
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Diagnostic Description

Adipose fin slender; pectorals long and slender (Ref. 6885). Black with bluish metallic reflections from opercles and scales; dusky on median fins, paired fins unpigmented (Ref. 6885). Branchiostegal rays: 9 (Ref. 31442).
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Type Information

Type for Ceratoscopelus townsendi
Catalog Number: USNM 41921
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Collector(s): C. Eigenmann
Year Collected: 1889
Locality: Cortez Banks, Off California., San Diego County, California, United States, Pacific
  • Type:
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Ecology

Habitat

Habitat Type: Marine

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Environment

bathypelagic; marine; depth range 100 - 500 m (Ref. 51600)
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Depth range based on 27 specimens in 1 taxon.
Water temperature and chemistry ranges based on 23 samples.

Environmental ranges
  Depth range (m): 31 - 4100
  Temperature range (°C): 2.077 - 15.381
  Nitrate (umol/L): 0.196 - 43.002
  Salinity (PPS): 33.128 - 35.453
  Oxygen (ml/l): 0.704 - 5.817
  Phosphate (umol/l): 0.386 - 3.053
  Silicate (umol/l): 2.896 - 170.634

Graphical representation

Depth range (m): 31 - 4100

Temperature range (°C): 2.077 - 15.381

Nitrate (umol/L): 0.196 - 43.002

Salinity (PPS): 33.128 - 35.453

Oxygen (ml/l): 0.704 - 5.817

Phosphate (umol/l): 0.386 - 3.053

Silicate (umol/l): 2.896 - 170.634
 
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Migration

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

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Trophic Strategy

Bathypelagic at 0-200 m at night, 425-1500 m during day (Ref. 58302). Epipelagic to mesopelagic (Ref. 31442). Depth range is between 300 to 600m during the day, and from 25 to 300 at night (Ref. 54154). Reported to feed on crustaceans (Ref. 6885).
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Life History and Behavior

Life Cycle

Oviparous (Ref. 31442).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Ceratoscopelus townsendi

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Ceratoscopelus townsendi

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Genomic DNA is available from 3 specimens with morphological vouchers housed at British Antarctic Survey and National Institute of Water and Atmospheric Research, Wellington
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Threats

Not Evaluated
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