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Perciformes/Notothenioidei (Icefishes) >
Channichthyidae (Crocodile icefishes)
Etymology: Channichthys: Greek, channe, -es = an anchovy + Greek, ichthys = fish (Ref. 45335); mithridatis: Name from the Latin spelling of Pontic (Bosporus) Tzar Μιθριδατης = Mithridates, who ruled Panticapaeum (antique name of the city of Kerch).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina djupbottenlevande; djupintervall 250 - 310 m (Ref. 80896). Temperate
Antarctic: Kerguelen Is.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 37.0 cm TL hane/ej könsbestämd; (Ref. 80896); 43.7 cm TL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 6 - 9; Mjukstrålar i ryggfenan (totalt) : 32 - 34; Mjukstrålar i analfenan: 30 - 32; Ryggkotor: 55 - 58. This species is made distinct by the following characters: interorbital width narrow, 6.3-7.7 times in HL, 1.2-1.7 shorter than horizontal orbit diameter; large eyes, orbit 4.5-5.6 times in HL and 2.1-2.7 in snout length; posterior edge of maxilla extending below 1/2-2/3 of the orbit diameter; a row of rakers on lower part of 1st gill arch on the outer side of ceratobranchial; first dorsal fin very high, 2.9-4 times in SL, with 2nd or 3rd spine longest; fin membrane of D1 not reaching tips of longest spines; well separated dorsal fins, posterior edge of D1 fin membrane not reaching 1st ray base of D2; rounded bony plates usually absent from anterior part of median lateral line; tuberculation on frontals and on anterior dorsal spines very faint or absent, absent on maxilla, dentary and branchiostegals (Ref. 80896).
A piscivorous species; stomach contents contain fish (Ref. 80896). Females mature at about 30-32 cm TL or 26-28 cm SL. Caught by bottom trawls in an area of barren of benthic fauna (Ref. 80896).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Shandikov, G.A., 2008. Channichthys mithridatis, a new species of icefishes (Perciformes: Notothenioidei: Channichthyidae) from the Kerguelen Islands (East Antarctica), with comments on the taxonomic status of Channichthys normani. Visnyk Charkivs'koho Universytetu Imeni V. N. Karazina, Ser. Biologija, Charkiv 14(917):123-131. (Ref. 80896)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fiskeri:
Verktyg
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=0.00132 (0.00060 - 0.00289), b=3.46 (3.28 - 3.64), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).
