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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.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
морской 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.
Размер / Вес / Возраст
половая зрелость: Lm ? range ? - ? cm
Max length : 300 cm TL самец/пол неопределен; (Ref. 4171)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 2 - 7; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 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).
Жизненный цикл и брачное поведение
половая зрелость | размножение | нерест | икра | Плодовитость | личинки
Heemstra, P.C., 1986. Regalecidae. p. 403. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4171)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
рыболовство: интереса не представляет
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Оценки, основанные на моделях
Предпочтительная температура (ссылка
123201): 6.4 - 13.4, mean 9.5 °C (based on 127 cells).
Индекс филогенетического разнообразия (ссылка
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).
Трофический уровень (ссылка
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Уязвимость рыбной ловли (Ref.
59153): Very high vulnerability (90 of 100).
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