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Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Hongeo: Name refers to the Korean common name for skates, 'hong-eo'.’; koreanus: Named after its type locality (Ref. 26574).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 30 - 180 m (Ref. 81217). Temperate
Northwest Pacific: southwestern coast of the Korean Peninsula.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 76.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 26574); 73.5 cm TL (female)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
This species is characterized by two derived character states: rostral cartilage continuous with the neurocranium and stout proximally, but very slender and uncalcified distally; and a broad anterior fontanelle, extending forward onto the basal part of rostral cartilage, slightly beyond the leading edge of nasal capsules. Other characters that distinguished this species are the following: the dorsal surface of tail of both sexes with a row of distinct thorns along midline; most thorns are directed anteriorly; middle of dorsal surface of disc with a pair of longitudinally elongated black blotches with undulated contours; three groups of outer buccal ampullae and tubules; three groups of nasal ampullae and tubules; ventral surface with hyoidean ampullae and tubules extending posteriorly past cloaca; rostral shaft is narrow with filamentous cartilage at the base; scapulocoracoid comparatively short and high with dorsoventrally elliptical anterior fenestra and expanded postventral fenestra; external margin of mesopterygium of pectoral fin slightly undulated, not sinuous nor fused with pectoral radials; with clasper component eperon and pent (Ref. 81217).
Oviparous (Ref. 50449, 81217). Eggs have horn-like projections on the shell (Ref. 205). Maximum length for female from Ref. 26574.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Jeong, C.-H. and T. Nakabo, 1997. Raja koreana, a new species of skate (Elasmobranchii, Rajoidei) from Korea. Ichthyol. Res. 44(4):413-420. (Ref. 26574)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
اطلاعات بيشتر
Age/Sizeرشدطول - وزنطول - طولنوسانات طولیريخت ستجي بوسيله انداره گيريريخت شناسيتوزاد ( لارو)پويايي لارويبازسازیفراوانيBRUVS
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكElectrophoresesوارثبيماري هافرآوریNutrientsMass conversion
همكارانعکس هاStamps, Coins Misc.صداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): پايين ، كم, كمينه زمان لازم براي دو برابر شدن جمعيت 5/4 – 14 سال (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
