Abudefduf troschelii

Pomacentridae
Panama Sergeant Major, Panama Sergeant Major
  • Abudefduf troschelii, Panama, Photo: Graham Edgar
    Abudefduf troschelii, Panama, Photo: Graham Edgar
  • Abudefduf troschelii, Gulf of California, Mexico, Photo: Rick Stuart-Smith
    Abudefduf troschelii, Gulf of California, Mexico, Photo: Rick Stuart-Smith
  • Abudefduf troschelii, Machalilla, Ecuador, Photo: Graham Edgar
    Abudefduf troschelii, Machalilla, Ecuador, Photo: Graham Edgar
Distribution
Tropical Eastern Pacific
Description
High silvery body with 6 dark bars, another faint bar on tail base, black spot at pectoral fin base, and a yellow back. Found in large aggregations above the reef.
Information
  • Max Size: 20 cm
  • Sea Temperature Range: 20.8-30.4°C
  • Depth: 1-12m
  • Habitat: Coral Reef, Rocky Reef
  • Habitat Generalisation Index: 23
    Also referred to as the SGI (Species generalisation index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here
Rarity
  • IUCN Threat Status: Least Concern
  • Occurrence: Common (33% of sites)
    Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
  • Abundance: Many (22 per transect)
    Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: Joe Shields
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