Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Paragobiodon: Greek, para = the side of + Latin, gobius = gudgeon + Greek,odous =teeth (Ref. 45335); kasaii: Named for Mr. Masao Kasai, discovere and and photographer of this new species.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 2 - 16 m (Ref. 93879). Subtropical
WesternPacific: Ryukyu Is. (Japan) and Palau.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 93879); 1.9 cm SL (female)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 26. This species is distinguished by the following characters: P-V 3/II II I I 0/9; origin of first dorsal fin posterior to the upper base of pectoral fins, origin of pelvic fins directly below the lower base of pectoral fins; colour of head and body light reddish yellow, median fins black and paired fins translucent (Ref. 93879).
Inhabits coral reefs of bays at the reef edge, or on the reef slope at depths of 2-16 m. Individuals live commensally on the branches of species of coral genus Pocillopora, mostly with Pocillopora eydouxi (Ref. 93879).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Suzuki, T. and J.E. Randall, 2011. Paragobiodon kasaii, a new gobiid fish from Japan and Palau. Bull. Natl. Mus. Nat. Sci., Ser. A 37(3):155-161. (Ref. 93879)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.5 - 29.4, mean 28.6 °C (based on 918 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00277 - 0.01371), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.3 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) .