分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 ? - 800 m (Ref. 11892), usually 20 - 200 m (Ref. 11892). Polar; 48°S - 54°S, 63°E - 79°E
Southern Ocean: considered endemic to the Kerguelen Plateau (Ref. 5159).
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL オス/雌雄の選別がない; (Ref. )
Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 6.0 cm long and 3.4 cm wide (Ref. 41249). Frequently taken in commercial bottom hauls but not much utilized because of its small size (Ref. 5159).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). 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)
Human uses
水産業: 少数商業の
用具
特記事項
XMLをダウンロードして下さい
インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 1.6 - 3.9, mean 3 °C (based on 42 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).
栄養段階 (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
Climate Vulnerability (Ref.
125649): High to very high vulnerability (73 of 100).
Nutrients (Ref.
124155): Calcium = 4.88 [0.73, 93.88] mg/100g; Iron = 0.289 [0.029, 3.844] mg/100g; Protein = 14.4 [12.6, 16.4] %; Omega3 = 0.446 [0.167, 1.203] g/100g; Selenium = 13.5 [2.3, 61.0] μg/100g; VitaminA = 6.87 [0.48, 87.04] μg/100g; Zinc = 0.277 [0.017, 3.184] mg/100g (wet weight);