(كوسه ها و سپرماهيان) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); lindbergi: Named for Dr. G. U. Lindberg, for his work on western North Pacific zoogeography (Ref. 75535).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق ? - 2000 m (Ref. 96339), usually 200 - ? m (Ref. 43939). Temperate
North Pacific: Sea of Okhotsk off Hokkaido, Japan to the Bering Sea.
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 60.7 cm WD جنس نر / بدون خواص جنسي; (Ref. 75535); 53.2 cm WD (female)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
مهره ها: 113 - 117. This species is distinguished from its congeners Bathyraja in having a whitish brown coloration on the ventral surface of the disk, contrasting the dark greyish brown on other parts; scapular spine absent; row of middorsal spines uninterrupted, running from before scapular arch to first dorsal (Ref. 75535).
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Depth range given by H. Ishihara (pers.comm. 07/07).
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). Eggs have horn-like projections on the shell (Ref. 205).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
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
Preferred temperature (Ref.
123201): 1.3 - 4.2, mean 2.6 °C (based on 235 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
Generation time: 27.5 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
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): Very high vulnerability (75 of 100).