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Lampriformes (Velifers, tube-eyes and ribbonfishes) >
Regalecidae (Oarfishes)
Etymology: Agrostichthys: Greek, agros = field, country + Greek, ichthys = fish (Ref. 45335).
Eponymy: Thomas Jeffery Parker (1850–1897) was a British zoologist who graduated from the University of London (1868). [...] (Ref. 128868), visit book page.
Environment: milieu / Zona climática / intervalo de profundidade / distribution range
Ecologia
marinhas pelagic-oceanic. Temperate; 25°S - 59°S (Ref. 92949)
Southern Oceans: collected relatively neaer the surface over or near the continental slope of New Zealand, Australia (with Tasmania), southern Namibia, and Argentina (including Falkland Is or Malvinias.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 300 cm TL macho/indeterminado; (Ref. 4171)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 2 - 7; Espinhos anais: 0; Raios anais : 0. Distinguished in having just 6 to 9 gill rakers on the first gill arch, 8 to 11 pectoral fin rays, and just 2 caudal fin rays. Start of the dorsal fin having 1 to 3 simple elongated rays, apparently never ornamented; not forming a single or double crest but are membranously joined to each other as well as to the dorsal fin. No cristophore. Head is shallow, with gently sloping snout. (Ref. 92949). Body silvery in color. Dorsal fin rose-colored and with more than 400 soft rays (Ref. 4171). Opercular bones well-developed. Small, protrusible mouth, without visible teeth; premaxilla extending forward along dorsal profile of head; axis of maxilla oblique. Skin of fragmented body naked, studded with numerous hard tubercles. Lateral line runs along sides consisting of a chain of oblong plates to form a continuous tube (Ref. 43600).
Body shape (shape guide): eel-like.
Rare species, known from only seven specimens. Occurs in the open ocean habitat (Ref. 4171). Found only in the southern oceans from 25°S to 59°S. Apparently also capable of autotomy, unique amongst lampridiforms. Early life history stages (eggs and larvae) unknown. Predators, prey, and parasites unknown (Ref. 92949).
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Heemstra, P.C., 1986. Regalecidae. p. 403. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4171)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: sem interesse
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 6.4 - 13.4, mean 9.5 °C (based on 127 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 1.1250 [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).
Nível Trófico (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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