Elasmobranchii (hajar och rockor) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Neotrygoninae
Etymology: yakkoei: Name 'yakkoei' is derived from the standard Japanese name 'yakkoei' (meaning ?).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina revassocierade; djupintervall 8 - 60 m (Ref. 137605). Subtropical
Utbredning
Territorier | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri
Northwest Pacific: Japan.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 35.0 cm WD hane/ej könsbestämd; (Ref. 137605); 42.5 cm WD (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
This species is distinguished by the following set of characters: when fresh, body greenish brown with single dark mask-like marking between eyes (often indistinct); there are fewer spots (mean 20.4); small pale blue spots (in fresh) surrounded by dark brown outer rings [1.2-3.4% DW (2.6% DW)]; longer head length (35.9–43.4% DW; mean 39.1% DW) (Ref. 137605).
Body shape (shape guide): other; Cross section: flattened.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Hata, H. and H. Motomura, 2024. Neotrygon yakkoei, a new bluespotted maskray (Dasyatidae) from Japan. Ichthyol. Res. 72(2):229-239. (Ref. 137605)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01096 (0.00348 - 0.03450), b=3.11 (2.85 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.4 ±0.3 se; based on size and trophs of closest relatives |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |