Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Kurtiformes (Nurseryfishes, cardinalfishes.) >
Apogonidae (Cardinalfishes) > Apogoninae
Etymology: regula: From the Latin for meaning ruler, measure or pattern, in reference to the re-occurring pattern of alternating 3 broad (darker) stripes and 3 (lighter) narrow stripes on the caudal peduncle shared with many dark-striped species of Apogon.
More on authors: Fraser & Randall.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 27 - 55 m (Ref. 50541). Tropical
Distribution
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Central Pacific: Guam and Condor Reef (Caroline Islands).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.8 cm SL male/unsexed; (Ref. 50541)
Dorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8; Vertebrae: 24. Alternating golden-brownish and white stripes on head and body, broad dark brown stripes on upper and lower caudal peduncle, midlateral stripe without a developed spot, whitish stripe extending onto last two anal rays (Ref. 50541).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fraser, T.H. and J.E. Randall, 2003. Two new species of deeper dwelling Apogon (Perciformes: Apogonidae) from Micronesia and South Pacific Ocean. Zootaxa 171:1-11. (Ref. 50541)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00509 - 0.02362), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).