Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Zoarcidae (Eelpouts) > Lycodinae
Etymology: Ophthalmolycus: Greek, ophthalmos = eye + Greek, lykos = wolf (Ref. 45335); eastmani: Named for Dr Joseph T. Eastman, in honour of his contributions to knowledge of Antarctic fish.
Eponymy: Dr Joseph Thornton Eastman (d: 1944) is Professor Emeritus of Anatomy, Ohio University. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 1837 m (Ref. 84360). Polar; 68°S - 69°S, 86°W - 87°W
Southern Ocean: Bellingshausen Sea.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 36.9 cm SL male/unsexed; (Ref. 84360); 35.5 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Vertebrae: 117 - 118. Ophthalmolycus eastmani can be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips and snout; gill slit extending ventrally to the lower margin of the pectoral fin base; vertebrae asymmetrical 26 − 27 + 91 − 92 = 117 − 118; dorsal fin rays 111–113; dorsal fin origin associated with vertebra 6, with no free pterygiophores; pectoral fin rays 17–18; two postorbital pores; lateral line with ventral and mediolateral branches; scales extending anteriorly to just anterior to the anal fin origin; six branchiostegal rays; oral valve nearly reaching the anterior edge of vomer; palatine teeth in two rows anteriorly; 3–5 pseudobranch filaments; two well developed pyloric caeca; pelvic fin and vomerine teeth present (Ref. 84360).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Matallanas, J., 2011. Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the Southern Ocean and key to species of the genus. Journal of the Marine Biological Association of the United Kingdom, doi:10.1017/S0025315410000615. (Ref. 84360)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00120 (0.00058 - 0.00248), b=3.10 (2.91 - 3.29), 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): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (35 of 100).
