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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.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री 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.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 300 cm TL पुल्लिंग / अलिंग; (Ref. 4171)
संक्षिप्त वर्णन
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय रीढ़ (सम्पूर्ण) : 2 - 7; गुदा कांटा: 0; ऐनल सौफट रेज़: 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).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Heemstra, P.C., 1986. Regalecidae. p. 403. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4171)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: कोई रुचि बग़ैर
साधन
विशेष रिपोर्ट
XML डाउनलोड करें
इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
पसंदीदा तापमान (संदर्भ
123201): 6.4 - 13.4, mean 9.5 °C (based on 127 cells).
जातिवृति विविधता सूचकांक (संदर्भ
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).
ट्रॉफिक स्तर (संदर्भ
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
मछली पकड़ने की भेद्यता (Ref.
59153): Very high vulnerability (90 of 100).
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