Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Pseudochromidae
(Dottybacks) > Pseudochrominae
Etymology: Pseudochromis: Greek, pseudes = false + Greek, chromis = a fish, perhaps a perch (Ref. 45335); yamasakii: Named for Kimihiro Yamasaki, who collected the holotype and provided photographs of the new species.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 18 - 45 m (Ref. 118103). Subtropical
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm SL male/unsexed; (Ref. 118103)
Morphology | Morphometrics
soft rays: 15;
Vertebrae: 26. This species is distinguished from its congeners by the following characters: D III,25, all segmented rays are branched; A III,15 where anal-fin spines are moderately stout and pungent, the second spine stouter than third; scales in lateral series 37-38; circumpeduncular scales 16; predorsal scales 15, extending anteriorly to anterior AIO pores; caudal fin is rounded (Ref. 118103).
Water temperatures of two photograph sites were 18°C and 21°C , suggesting that this species is tolerant of relatively low temperatures (Ref. 118103).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gill, A.C. and H. Senou, 2016. Pseudochromis yamasakii, a new species of dottyback fish from Japan (Teleostei: Pseudochromidae: Pseudochrominae). Zootaxa 4173(3):296-300. (Ref. 118103)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00191 - 0.01317), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 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.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .