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Glyptocephalus kitaharae

  • Fish
  • Usual depth117–343 m
  • Water temperature6–26 °C
  • Best monthsJuly and October
  • How commonRare
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About this species

The willowy flounder is a flatfish of the family Pleuronectidae. It is a demersal fish that lives on bottoms at depths of between 100 and 200 metres. Its native habitat is the temperate waters of the Western Pacific, from Southern Hokkaido in Japan to the Gulf of Bohai, the East China Sea and Taiwan. It can grow up to 30 centimetres (12 in) in length. It is sometimes classified in the monotypic genus Tanakius.

Text from the Wikipedia article “Willowy flounder”, 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: 0 records
  • February: 0 records
  • March: 0 records
  • April: 1 records
  • May: 0 records
  • June: 0 records
  • July: 7 records
  • August: 0 records
  • September: 4 records
  • October: 9 records
  • November: 4 records
  • December: 0 records

Depth and water temperature

Depth

Mostly recorded at 117–343 m · Deepest record: 383.5 m

  • 110–120 m: 3 records
  • 120–130 m: 2 records
  • 130–140 m: 0 records
  • 140–150 m: 2 records
  • 150–160 m: 2 records
  • 160–170 m: 3 records
  • 170–180 m: 0 records
  • 180–190 m: 1 records
  • 190–200 m: 2 records
  • 200–210 m: 0 records
  • 210–220 m: 0 records
  • 220+ m: 7 records

Water temperature

Recorded in surface water of 6–26 °C

  • 6–8 °C: 1 records
  • 8–10 °C: 0 records
  • 10–12 °C: 1 records
  • 12–14 °C: 0 records
  • 14–16 °C: 3 records
  • 16–18 °C: 3 records
  • 18–20 °C: 4 records
  • 20–22 °C: 10 records
  • 22–24 °C: 0 records
  • 24–26 °C: 0 records
  • 26–28 °C: 1 records

Names and classification

Other scientific names: Glyptocephalus kitaharai, Microstomus kitaharae, Tanakius kitaharae, Tanakius kitaharai

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.
  • 25 open-data records from 1906 to 1996.

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