Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Plotosidae
Etymology: Plotosus: Greek, plotos = swimming (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic. Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 18.3 cm SL male/unsexed; (Ref. 75200)
Morphology | Morphometrics
This species is distinguished by the following set of characters: 2-3 pale stripes on body, of which 2 extend onto head, a pair of dermal fold fringing base of dendritic organ; nasal and maxillary barbels reach well beyond posterior border of orbit; origin of dorsal procurrent caudal-fin posterior to vertical thorough middle base of pelvic fins, and slightly anterior to vertical through origin of anal fin; 21-26 (usually 23-25) gill rakers; 142-174 (usually 146-174) total rays in confluent median fins; 48-52 (usually 49-51) vertebrae excluding anterior complex vertebra (Ref. 75200).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Yoshino, T. and H. Kishimoto, 2008. Plotosus japonicus, a new eeltail catfish (Siluriformes: Pltosidae) from Japan. Bull. Natl. Mus. Nat. Sci. Ser. A. Suppl. 2:1-11. (Ref. 75200)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 19.1 - 26.3, mean 24.1 °C (based on 213 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00197 - 0.01058), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±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.).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .
Nutrients (Ref. 124155
): Calcium = 82.8 [38.0, 164.9] mg/100g ; Iron = 0.352 [0.211, 0.625] mg/100g ; Protein = 16.7 [14.4, 19.0] % ; Omega3 = 0.464 [0.209, 1.014] g/100g ; Selenium = 16.7 [7.6, 38.3] μg/100g ; VitaminA = 23.2 [7.0, 77.9] μg/100g ; Zinc = 0.853 [0.570, 1.266] mg/100g (wet weight);