Teleostei (teleosts) > Perciformes/Zoarcoidei
(Eelpouts and pricklebacks) > Eulophiidae
("Spinous fin eelpouts")
Etymology: Azygopterus: Greek, azygos = without yoke; fellowless, unpaired + Greek, pteryx = fin (Ref. 45335).
More on authors: Andriashev & Makushok.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 60 - 200 m (Ref. 50610). Polar
Northwest Pacific: Kuril Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Morphology | Morphometrics
Characterized by the following; absence of haemonephrapophyses, seismosensory canals on the body, pectoral and pelvic fins; epipleurals extend over the tail region of vertebra column; 6 rays in gill membrane (Ref. 94496).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Quast, J.C. and E.L. Hall, 1972. List of fishes of Alaska and adjacent waters with a guide to some of their literature. U.S. Dep. Commer., NOAA Tech. Rep. NMFS SSRF-658, 47 p. (Ref. 6876)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).