| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | ACTINOPTERYGII | PERCIFORMES | GOBIIDAE |
| Scientific Name: | Istigobius rigilius | |||
| Species Authority: | (Herre, 1953) | |||
Common Name/s:
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| Synonym/s: |
Bikinigobius welanderi Herre, 1953
Pallidogobius rigilius Herre, 1953
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| Red List Category & Criteria: | Least Concern ver 3.1 |
| Year Published: | 2010 |
| Assessor/s: | Larson, H.K., Murdy, E. & Van Tassell, J. |
| Reviewer/s: | Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M. |
| Contributor/s: | De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P., Smith, J. & Livingston, F. |
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Justification: Istigobius rigilius has been assessed as Least Concern. It is a broad ranging species and while it may be undergoing localised declines due to factors relating to habitat degradation, these threats are not known to pose a significant threat to the global population. |
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| Range Description: | Istigobius rigilius is distributed from the Ryukyu Islands (Japan) to the Great Barrier Reef (Australia), and east to New Caledonia, Fiji, Tonga, Palau, Kiribati, Ashmore and Cartier Reefs, and the Marshall Islands. |
| Countries: |
Native:
Australia; Fiji; Indonesia; Japan; Kiribati; Marshall Islands; New Caledonia; Palau; Papua New Guinea; Philippines; Tonga
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| FAO Marine Fishing Areas: |
Native:
Pacific – western central; Pacific – northwest; Pacific – eastern central
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| Range Map: | Click here to open the map viewer and explore range. |
| Population: | Istigobius rigilius is reported as uncommon in the Capricorn-Bunker Group (Lowe and Russell 1990). Nevertheless, it is generally the most common Istigobius species found on coral reefs (E. Murdy pers. comm. 2009). |
| Population Trend: |
Unknown
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| Habitat and Ecology: | Istigobius rigilius can be found resting on sand patches, amongst living coral and coral rubble, in clear water lagoons and bays. It occurs at a depth range of 0–30 m. |
| Systems: | Marine |
| Major Threat(s): | There are no known major threats to Istigobius rigilius. Due to its association with coral habitats, it is likely to be undergoing localised declines from factors relating to habitat degradation such as destructive fishing practices, coral bleaching, sedimentation, coastal development, pollution, and tourism. However, due to the localised nature of these threats, they are not considered to pose a major threat to this broad ranging species. |
| Conservation Actions: | There are no known species-specific conservation measures in place for Istigobius rigilius, however its distribution may coincide with numerous marine protected areas (MPAs), including the Great Barrier Reef Marine Park. |
| Citation: | Larson, H.K., Murdy, E. & Van Tassell, J. 2010. Istigobius rigilius. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 24 May 2012. |
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