''Stegastes redemptus'', commonly known as the clarion major, clarion damselfish or clarion gregory, is a

damselfish Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about 30 ...

of the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Pomacentridae Pomacentridae is a family of ray-finned fish, comprising the damselfishes and clownfishes. This family were formerly placed in the order Perciformes but are now regarded as being ''incertae sedis'' in the subseries Ovalentaria in the clade Perco ...

. It is native to the tropical eastern Pacific Ocean, its range extending from the

Revillagigedo Islands The Revillagigedo Islands ( es, Islas Revillagigedo, ) or Revillagigedo Archipelago are a group of four volcanic islands in the Pacific Ocean, known for their unique ecosystem. They lie approximately from Socorro Island south and southwest of C ...

to the coast of

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

. It is found on rocky reefs at depths ranging from .

Status

''Stegastes redemptus'' has a very small range and 95% of the population is estimated to be found in the waters around the Revillagigedo Islands, an area of less than . The trend in population is unknown, but the small area of occupancy makes it vulnerable to external events such as environmental changes.

El Niño El Niño (; ; ) is the warm phase of the El Niño–Southern Oscillation (ENSO) and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific (approximately between the International Date L ...

events may cause the shallow waters in which it lives to become too warm and deficient in nutrients for extended periods which may threaten its survival. For these reasons, the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

has rated it as being " Vulnerable". No special conservation measures are in place but part of its range is within the Revillagigedo Islands Marine Protected Area.

References

{{Taxonbar, from=Q2191804 redemptus Fish described in 1903 Taxa named by Robert Evans Snodgrass Taxa named by Edmund Heller