Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335); chapmani: Named for Demian Chapman, for his contributions to shark and ray conservation and research.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Tầng đáy biển sâu; Mức độ sâu ? - 1714 m (Ref. 127873). Deep-water
Southeastern Pacific: Peru.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 113 cm TL con đực/không giới tính; (Ref. 127873)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
This large species (to at least 112.6 cm TL) with a rhombic disc, is distinguished from other
Peruvian species (as well as all other southeast Pacific congeners) by the following characters: a uniform black-to-chocolate or dark-plumbrown colouration, notably the same on both dorsal and ventral surfaces (vs. dorsal and ventral surfaces of different colors, except B. aguja; an irregular spotted pattern on both dorsal and ventral surfaces (vs. no spotting or, in B. aguja, two symmetrically arranged, large, white spots on dorsal surface at pectoral-fin bases and symmetrically arranged white spots along disc margins); differs from Peruvian congeners by having more precaudal vertebrae 79-81 (vs. 62-71); fewer pectoral-fin radials 69-70 (vs. 72-83) (Ref. 127873).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Ebert, D.A., J. Alfaro-Shigueto, X. Velez-Zuazo, M. Pajuelo and J.C. Mangel, 2022. Bathyraja chapmani n. sp., a new deep-sea skate (Rajiformes: Arhynchobatidae) from the Southeast Pacific Ocean. J. Ocean Sci. Foundation 39:23-35. (Ref. 127873)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Các công cụ
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00291 - 0.01038), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (68 of 100).
![Image of Bathyraja chapmani (Chapman\](/images/thumbnails/gif/tn_ARHYNCT0.gif "Image of Bathyraja chapmani (Chapman\")
