Classification / Names
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Perciformes/Zoarcoidei (Eelpouts and pricklebacks) >
Zoarcidae (Eelpouts) > Lycodinae
Etymology: Ophthalmolycus: Greek, ophthalmos = eye + Greek, lykos = wolf (Ref. 45335); andersoni: The new species is named after Dr. M. Eric Anderson, in honour of his many contributions to
knowledge of zoarcids (Ref. 80464).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino benthopelagico; distribuzione batimetrica 286 - ? m (Ref. 80464). Polar; 64°S - 65°S, 62°W - 63°W
Antarctic Ocean: Paradise Bay, Antarctic Peninsula (Ref. 80464).
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 26.3 cm SL maschio/sesso non determinato; (Ref. 80464)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 87 - 91; Raggi anali molli: 72 - 74; Vertebre: 92 - 96. A species of Ophthalmolycus as defined by Anderson (1992, 1994) with the following
combination of characters: 6 branchiostegal rays; pectoral fin origin well below midbody, pectoral base extending ventrally to abdomen; lateral line double with ventral and medio-lateral branches; oral valve not reaching anterior edge of vomer; gill slit extending ventrally well below ventral end of pectoral fin base; vertebrae asymmetrical 22+70-74=92-96; dorsal fin origin associated with vertebrae 4 or 5 with no supraneurals; pectoral fin rays 16 or 17; 2 postorbital pores (positions 1 and 4); 2 well developed pyloric caeca and 0–3 pseudobranch filaments (Ref. 80464).
Body laterally compressed and relatively short; tail laterally compressed, especially posteriorly. Head nearly triangular in cross section; eye ellipsoid, not entering dorsal profile of head. Scales small, sparse, present only on tail and un-paried fin bases. Gill slit extending ventrally well below lower edge of pectoral fin base. Triangular opercular flap at upper end of gill slit. Pectoral-fin origin well below midbody, pectoral-fin base with its lower end on abdomen, pectoral-fin margin rounded; ventralmost 5–7 rays thickened, tips exserted. Upper jaw protruding, end of maxilla extending to posterior margin of eye; lower lip with a small lobe. Nasal tube long, unpigmented, overhanging upper lip. Two well-developed pyloric caeca present, their length about 66 % of eye diameter. Gill rakers 3+ 8–9, triangular. Pseudobranch filaments 0–3.
Cephalic lateralis pore system with pores enlarged except the 7th and 8th preoperculomandibular, and the two postorbital pores. 2 nasal pore, 1st pore located anteromesial to nasal tube, the other dorsoposterior to it. Two postorbital pores (positions 1 and 4). Six suborbital pores all on the ventral ramus. Eight preoperculomandibular pores. Interorbital and occipital pores absent. Body lateral line configuration with 2 rows of neuromasts: lower lateral-line beginning just behind the fourth postorbital pore, steeply sloping above pectoral fin and extending ventrolaterally to the end of the tail; middle lateral line, originated behind the anal-fin origin and coursing to tail tip (Ref. 80464).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Matallanas, J., 2009. Description of Ophthalmolycus andersoni sp. nov. (Pisces, Zoarcidae) from the Antarctic Ocean. Zootaxa 2027:55-62. (Ref. 80464)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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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 (0.00057 - 0.00252), 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): 3.4 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
