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Filament Cusk

Homostolus acer

  • Fish
  • IUCN: Least concern
  • Usual depth400–699 m
  • Water temperature18–29 °C
  • Best monthsApril, October, and November
  • How commonRare
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About this species

The filament cusk is a species of cusk-eel found in the western Pacific Ocean from the waters off of Japan to Australia and New Caledonia where it occurs at depths of from 300 to 1,000 metres. This species grows to a length of 18.4 centimetres (7.2 in) SL and is of minor importance to commercial fisheries. It is the only known member of its genus.

Text from the Wikipedia article “Filament cusk”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 2 records
  • February: 3 records
  • March: 1 records
  • April: 10 records
  • May: 2 records
  • June: 6 records
  • July: 1 records
  • August: 4 records
  • September: 6 records
  • October: 9 records
  • November: 10 records
  • December: 3 records

Depth and water temperature

Depth

Mostly recorded at 400–699 m · Deepest record: 791 m

  • 180–190 m: 1 records
  • 190–200 m: 0 records
  • 200–210 m: 0 records
  • 210–220 m: 0 records
  • 220–230 m: 0 records
  • 230–240 m: 0 records
  • 240–250 m: 0 records
  • 250–260 m: 0 records
  • 260–270 m: 0 records
  • 270–280 m: 0 records
  • 280–290 m: 0 records
  • 290+ m: 49 records

Water temperature

Recorded in surface water of 18–29 °C

  • 18–20 °C: 1 records
  • 20–22 °C: 13 records
  • 22–24 °C: 1 records
  • 24–26 °C: 18 records
  • 26–28 °C: 22 records
  • 28–30 °C: 13 records

Names and classification

English
Filament Cusk
Names in 2 more languages
Japanese
Itohikiitachiuo, イトヒキイタチウオ
Simplified Chinese
長趾鼬魚, 長趾鼬鳚, 鼬魚

Other scientific names: Homostolus japonicus

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 138 open-data records from 1909 to 2007.

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