分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dactylobatus: Greek, daktyleys, -eos = a kind of grey mullet + Greek, batis = a kind of ray (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 475 - 1000 m (Ref. 28767). 深水域; 5°S - 31°N, 97°W - 33°W (Ref. 114953)
Western Central Atlantic: northern Gulf of Mexico (Ref. 13608) to South Carolina (Ref. 114953) and northern coast of South America (Ref. 5217).
中西大西洋: 墨西哥灣北部 (參考文獻 13608) 與南美洲的北海岸.(參考文獻 5217)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 59.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 13608); 69.0 cm WD (female)
Inhabits mud-bottom habitat on the upper slope, generally in waters deeper than 350 meters. Mainly feeds on small bony fishes (Ref. 114953). Stomach contents include one specimen of Mullus argentinae, remains of a teleost fish and predominance of Myctophidae fishes. Sympatric with other chondrichthyans, Etmopterus bigelowi, Squalus aff. blainvillei, and Dipturus leptocauda (Ref. 56543). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
在上层斜坡上栖息于泥底栖息地, 通常在水域深度超过 350 公尺中。 胃内含物包括 Mullus argentinae 的一件标本, 硬骨鱼鱼与 Myctophidae 鱼的卓越保持。 与其他的 chondrichthyans ， 比氏乌鲨〔Etmopterus bigelowi〕 ， Squalus aff 重迭分布了。 blainvillei, 与 Dipturus leptocauda.(参考文献 56543)卵生的.(參考文獻 50449) 卵在貝殼上有像觸角一樣的突出。 (參考文獻 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).中西大西洋: 墨西哥灣北部 (參考文獻 13608) 與南美洲的北海岸.(參考文獻 5217)
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)
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Estimates based on models
Preferred temperature (Ref.
123201): 5.5 - 13, mean 8 °C (based on 76 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [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).
营养阶层 (Ref.
69278): 4.5 ±0.80 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
