Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Plotosidae
Etymology: Paraplotosus: Greek, para = in the side of + Greek, plotos = swimming (Ref. 45335); butleri: Named in honor of W. 'Harry' Butler, who assisted in with the collection of many of the paratypes (Ref. 31103)
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range - 5 m (Ref. 31103), usually - m (Ref. ). Tropical; 0°C -
Indo-West Pacific: northern Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 32.5 cm SL male/unsexed; (Ref. 31103)
Morphology | Morphometrics
soft rays: 87 - 102. Differs from Paraplotosus albilabris and P. muelleri in having a tall, sail-like first dorsal fin and extremely long nasal barbels, which extend posteriorly to the basal third of the pectoral fin or beyond (Ref. 31103). Small juveniles have a unique coloration consisting of a black head and body with a broad white to yellow margin on the first dorsal fin and continuous dorsal-caudal-anal fin (Ref. 31103). Adults entirely black (Ref. 31103).
Restricted to coastal reefs (Ref. 31103). Secretive, found in reef holes or under large rocks (Ref. 31103). Presumably nocturnal (Ref. 31103). Feeds on gastropod mollusks and crustaceans (Ref. 31103).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., 1998. A review of the marine catfish genus Paraplotosus (Plotosidae) with the description of a new species from north-western Australia. Raf. Bull. Zool. 46(1):123-134. (Ref. 31103)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.4 - 29.2, mean 28.3 °C (based on 1313 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00197 - 0.01063), 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
): 3.4 ±0.54 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (37 of 100) .
Nutrients (Ref. 124155
): Calcium = 65.3 [36.3, 150.5] mg/100g ; Iron = 0.612 [0.360, 0.978] mg/100g ; Protein = 17.6 [15.6, 19.7] % ; Omega3 = 0.102 [0.051, 0.194] g/100g ; Selenium = 40.6 [22.0, 82.8] μg/100g ; VitaminA = 69.3 [24.3, 196.8] μg/100g ; Zinc = 1.32 [0.87, 1.88] mg/100g (wet weight);