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Aulopiformes (Grinners) >
Paralepididae (Barracudinas)
Etymology: Arctozenus: Greek, arktos = bear + particle zen, derived from zao = to give life; australis: Name from Latin 'australis' for 'southern', referring to the distribution of the species which appears restricted to the Southern Ocean.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas batipelágico; intervalo de profundidade 160 - 800 m (Ref. 122005). Temperate
Indian Ocean, Antarctic: off Kerguelen Islanda.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 31.6 cm SL macho/indeterminado; (Ref. 122005)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 9 - 10; Raios anais : 30 - 32; Vértebras: 79 - 84. A species of Arctozenus differing from the only congener in having a pale body with lower half
mostly devoid of chromatophores; body slender, its depth 14-19 in SL; a slender head, its depth at middle of eye 4.3-5.1 in HL. Compared to similar size specimens (>250 mm SL) of A. risso, A. australis has relatively slender body (5.2-7.3%, vs. 7.7-10.6% SL); the ratio of snout length/eye diameter relatively large 3.1-3.9 (vs. 2.7-3.4); origin of pelvic fin slightly but clearly behind dorsal-fin base (vs. usually below dorsal-fin base); and anterior lateral-line scales long, about twice as long as its height (vs. width subequal to the height). (Ref. 122005)
Cross section: compressed.
Reported as by-catch of bottom trawl on the slope of the Kerguelen Plateau (480-800 m) and South-Georgia (Ref. 122005).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Ho, H.-C. and G. Duhamel, 2019. A new species of the fish genus Arctozenus from the Kerguelen Islands, with comments on the lost teeth in adults (Aulopiformes: Paralepididae). Zootaxa 4651(3):497-512. (Ref. 122005)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: bycatch
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00186 (0.00078 - 0.00447), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low to moderate vulnerability (29 of 100).
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