Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Sicydiinae
Etymology: Sicyopus: Greek, sika, sikya = cucumber + Greek, pous = foot (Ref. 45335).
Environment / Climate / Range
Freshwater; benthopelagic. Tropical, preferred ?
Oceania: northern New Guinea and the islands of New Hanover and Bougainville in Papua New Guinea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL male/unsexed; (Ref. 26726); 3.4 cm SL (female)
Morphology | Morphometrics
(total): 6 - 7;
soft rays: 9. Male with 6 spines in first dorsal fin, female with 5; pectoral rays almost always 15; dusky to blackish band extending midlaterally from behind pectoral base to below origin of second dorsal fin in male and ending as a small spot at hypural base in female; in life male with lower two thirds of body between second dorsal and anal fins, and caudal peduncle bright red.
Inhabits clear, swift, high gradient streams with bottom of boulders and gravel at elevations of 350 m and 500 m.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Watson, R.E., 1995. A new species of Sicyopus from Papua New Guinea with a redescription of Sicyopus multisquamatus (Teleostei: Gobiidae: Sicydiinae). Ichthyol. Explor. Freshwat. 6(3):267-278. (Ref. 26726)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), based on all LWR estimates for this body shape (Ref. 93245
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .