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Isthmus Goby

Arcygobius baliurus

  • Fish
  • IUCN: Data deficient
  • Usual depth1–39 m
  • Water temperature27–30 °C
  • Best monthsJuly, August, and December
  • How commonRare
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About this species

The Isthmus goby is a species of goby native to marine and brackish waters of the Indian Ocean and the western Pacific Ocean where it can be found at depths of from 3 to 15 metres. This species lives on substrates consisting of a mix of sand and rubble. This species grows to a length of 10.2 centimetres (4.0 in) SL. This species is the only known member of its genus.

Text from the Wikipedia article “Isthmus goby”, 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: 0 records
  • March: 2 records
  • April: 3 records
  • May: 2 records
  • June: 2 records
  • July: 8 records
  • August: 7 records
  • September: 1 records
  • October: 4 records
  • November: 2 records
  • December: 6 records

Depth and water temperature

Depth

Mostly recorded at 1–39 m · Deepest record: 66 m

  • 0–10 m: 11 records
  • 10–20 m: 2 records
  • 20–30 m: 1 records
  • 30–40 m: 2 records
  • 40–50 m: 0 records
  • 50–60 m: 0 records
  • 60–70 m: 1 records

Water temperature

Recorded in surface water of 27–30 °C

  • 26–28 °C: 4 records
  • 28–30 °C: 45 records

Names and classification

English
Isthmus Goby
Names in 1 more languages
Thai
ปลาบู่ด่าง

Other scientific names: Acentrogobius baliurus, Gnatholepis baliurus, Gnatholepis calliurus, Gobius atherinoides, Gobius baliurus, Isthmogobius baliurus, Oplopomops atherinoides, Oplopomus atherinoides, Opua atherinoides

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).
  • 87 open-data records from 1837 to 2010.
  • Species data updated October 26, 2026.

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