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Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Ophichthinae
Etymology: Yirrkala: Named for its type locality Yirrkala, Caledon Bay, Gulf of Carpentaria, Queensland, Australia; ori: Named for the Oceanographic Research Institute of South Africa, which collected these and many other valuable specimens.
Eponymy: This is an acronym for the Oceanographic Research Institute (ORI) of South Africa, honoured for its contributions to the ichthyology of South African waters. Its research vessel David Davies collected the type of the whiptail. (Ref. 128868), visit book page.
More on author: McCosker.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall ? - 20 m (Ref. 86861). Subtropical
Western Indian Ocean: South Africa.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 43.8 cm TL hane/ej könsbestämd; (Ref. 86861); 35.3 cm TL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Ryggkotor: 149 - 152. This species is distinguished by the following set of characters: head 6.2-6.7% TL; tail 50% TL; dorsal-fin origin nearly above gill openings; eye behind middle of upper jaw; supraorbital pores 4; teeth conical, minute, uniserial on jaws and vomer; colour yellowish, slightly darker dorsally; total vertebrae 149-152; mean vertebral formula 6.5-74-150 (n=4) (Ref. 86861).
Body shape (shape guide): eel-like.
Inhabits coarse sand substrate (Ref. 86861).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
McCosker, J.E., 2011. Two new Indo-Pacific species of the sand-eel genus Yirrkala (Anguilliformes: Ophichthidae). Smithiana Bulletin 13:45-50. (Ref. 86861)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00041 - 0.00214), b=2.99 (2.79 - 3.19), 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): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low to moderate vulnerability (34 of 100).
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