Stonogobiops yasha
Spot the Yasha Goby in Okinawa, Fiji, and Queensland in 24-29 °C water. Learn what to look for at 15-40 m on Indo-Pacific reefs.
A small, slender goby with a pale whitish body marked by vivid red-orange to reddish-brown vertical stripes or blotches running from head to tail. The first dorsal fin is notably tall and flag-like, which is the quickest field mark at depth. It typically hovers just centimetres above the sandy or rubble substrate near a burrow entrance, rarely straying far. The striking contrast between its pale body and bold striping makes it stand out against the sand even from a short distance.
You will almost always find a Yasha Goby right at the mouth of a burrow on sandy or rubble slopes, typically between 15 and 40 metres. It shares its burrow with a snapping shrimp (alpheid shrimp), a classic goby, shrimp partnership where the shrimp excavates and the goby keeps watch. Approach slowly and stay low: any sudden movement will send it backwards into the hole in an instant, and it may take several minutes of patient hovering before it reappears.
The Yasha Goby lives in a mutualistic partnership with nearly blind alpheid shapping shrimp. The shrimp maintains the shared burrow while keeping one antenna in contact with the goby; the goby uses fin and body signals to warn the shrimp of danger. It is a living example of interspecies communication you can watch play out in real time.
No clear seasonal peak has been detected from the available data, so the Yasha Goby can be treated as a year-round target. Its temperature niche of roughly 25 to 29 °C matches stable tropical conditions across its range.
Reef neighbours a diver could mistake it for. Use the identification notes above to tell them apart.
The Yasha Goby has a strong Indo-Pacific presence, with the most sites modelled around Japan, particularly in the Okinawa Islands and the Yaeyama and Miyako Islands. Fiji, especially Viti Levu and Kadavu, and the Queensland coast of Australia are also well-represented, along with New Caledonia and Tonga.
Mapping where Yasha Goby is logged…
The Yasha Goby is most reliably found across the Indo-Pacific, with strong coverage in Japan's Okinawa Islands and Yaeyama and Miyako Islands, Fiji (particularly Viti Levu and Kadavu), Queensland in Australia, and New Caledonia. Tonga and Vanuatu also feature in its range.
No single peak season has emerged from the data. Because the species lives in warm tropical water of around 25 to 29 °C year-round, it can be targeted on any dive trip to its Indo-Pacific range regardless of season.
Look for a small pale goby with bold red-orange vertical stripes and a distinctively tall, flag-like first dorsal fin, hovering close to a sandy or rubble burrow at depths of 15 to 40 m. The tall dorsal fin combined with vivid striping is the quickest distinguishing mark.
Yasha Gobies are small fish, typically only a few centimetres in length. Their small size means they can be easy to overlook on the sand, so scanning carefully just above the substrate near obvious burrow openings gives the best chance of a sighting.
Yes. The Yasha Goby lives alongside an alpheid (snapping) shrimp in a well-documented mutualistic partnership. The nearly blind shrimp digs and maintains the burrow, while the goby stands guard and signals danger through body and fin movements the shrimp detects by touch. Watching this interaction is one of the main draws for macro divers.
Site and sighting data is aggregated from diver logs, iNaturalist and GBIF. For taxonomy and conservation status:
Slender Goby
803 sites
