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Shokihaze goby
Tridentiger barbatus (Günther, 1861)
Also calledAziatische baardgrondel (nld) · Shokihaze (jpn) · ショウキハゼ (jpn) · 髭縞鰕虎 (zho) · 髭縞鰕虎魚 (zho)
The Shokihaze goby (Triaenopogon barbatus) is a small fish species that bears a superficial resemblance to sculpins but can be distinguished by specific morphological features. One notable characteristic is the presence of fused pelvic fins, which form a suction cup, a feature not found in sculpins. Additionally, Shokihaze gobies have barbels on their heads, specifically below the eyes and along the lower jaw which help differentiate them from other similar species.
Descriptions from checklists and floras indexed by GBIF
description
Shokihaze Goby. To 10.9 cm (4.4 in) TL (Greiner 2002). Native to western Pacific; Japan and Korea as far south as Taiwan (Akihito et al. in Nakabo 2002); San Francisco Bay Estuary (Moyle and Davis 2000). Benthic; marine (Hwang and Lee 1999) and brackish waters (Akihito et al. in Nakabo 2002); benthic; depth: 2 – 26 m (6 – 85 ft) (min.: Wang 2011; max.: Greiner 2002).
Checklist of marine and estuarine fishes from the Alaska-Yukon Border, Beaufort Sea, to Cabo San Lucas, Mexico
From Wikipedia (CC BY-SA), quoted section by section
Description
The Shokihaze goby can be further distinguished from other introduced species in the Tridentiger genus, such as the Shimofuri goby (T. bifasciatus) and the Chameleon goby (T. trigonocephalus). While the Shokihaze goby displays approximately six vertical or diagonal dusky bars along its body, the other two species feature dark horizontal stripes instead of bars. The presence of barbels is also unique to T. barbatus compared to its counterparts.
Typical size. This species can reach a length of 5.2 centimetres (2.0 in) SL. Juvenile and adult of the Shokihaze Goby have total length (TL) ranging from 13 to 121 mm (0.51 to 4.76 in).
Range & habitat
Shokihaze goby is a species of goby native to marine and brackish waters along the coasts of eastern Asia, specifically it is native to China. It has also been introduced to the San Francisco Bay in California, United States. Both the State Water Project (SWP) and Central Valley Project (CVP) export water from the Sacramento-San Joaquin Delta. These water conveyance systems provide potential pathways for species dispersal into southern California. One notable example of this is the expansion of the shimofuri goby, which was facilitated by the State Water Project.
What it does
Triaenopogon barbatus is a benthic species primarily feeding on invertebrates and small fish. Its diet mainly consists of benthic invertebrates such as polychaete worms and crustaceans, as well as small fishes. In California, the shokihaze goby's diet is more diverse, including gammarid amphipods, copepods, mysids, isopods, and clam siphons. Notably, it has been observed to consume polyps of the non-native hydrozoan Cordylophora caspia, which can make up to 10% of the total gut content weight during certain seasons.
Where it has been recorded
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Tridentiger barbatus in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 2376464.