Arctoraja parmifera, Alaska skate

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Arctoraja parmifera (Bean, 1881)

Alaska skate
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Arctoraja parmifera
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Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: parmifera: Name from Latin 'parma' meaning shield, and 'fero' for 'to bear', likely in reference to the strong thorns along the midline. (Ref. 89865).
More on author: Bean.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

Biển gần đáy; Mức độ sâu 20 - 1450 m (Ref. 56527), usually 120 - 450 m (Ref. 56527). Boreal; 2°C - 7°C (Ref. 56527)

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

North Pacific: Bering Sea to southeastern Alaska.

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm 90.5, range 81 - 95 cm
Max length : 135 cm TL con đực/không giới tính; (Ref. 85855); Khối lượng cực đại được công bố: 18.2 kg (Ref. 56527)

Short description Hình thái học | Sinh trắc học

This species is distinguished from all other members of the subgenus Arctoraja by having a complete or, uncommonly, an incomplete row of dorsal thorns extending from the nuchal region to the interdorsal; dorsum nearly uniform brown, often with vague dark spotting and a yellowish blotch at pectoral-fin base; and two unique COI haplotypes. It is further distinguished from B. panthera by having fewer total thorns 19-36 (vs. 31-42), fewer tail thorns 15-23 (vs.19-28), internal carotid foramina widely separated (vs. foramina in a single median pit), distal portion of ventral marginal cartilage distolaterally directed and straight (vs. sinusoidal), accessory terminal 2 broadly triangular with short spike (vs. elongate with long spike), distal tip of axial cartilage bluntly rounded (vs. pointed), anterior portion of body short and narrow (vs. longer and wider); tail short (vs. longer); from B. simoterus by its wider interdorsal space 1.0-3.9% TL (vs. 0.5-1.0% TL), fewer precaudal and caudal vertebrae 32-40 and 82-89 (vs. 41 and 90), fewer tail thorns 15-23 (vs. 22-28), larger orbit 4.3-5.3% TL (vs. 2.6-4.8% TL), anterior- and posterior-most postdorsal and postventral foramina of the scapulacoracoid larger than three intervening foramina (vs. three postdorsal foramina slightly smaller posteriorly, posteriormost postventral foramina four times larger than preceding six foramina), distal projection of the ventral marginal directed distolaterally (vs. distally), ventral terminal tear-drop shaped (vs. lanceolate), and dorsal and ventral marginals extend to about a quarter the length of dorsal terminal 2 (vs. extending farther distally to distal tip of dorsal terminal 3); from B. smirnovi by its typically complete dorsal row of thorns (vs. always broadly interrupted between the nuchal and tail thorns), wider interdorsal space (1.0-3.9% TL (vs. 0.1-1.4% TL), distal projection of the ventral marginal projecting distolaterally (vs. distally), ventral terminal tear-drop shaped (vs. lanceolate), and dorsal and ventral marginals extending to about a quarter the length of dorsal terminal 2 (vs. extending farther distally to distal tip of dorsal terminal 3) (Ref. 89865).

Sinh học     Tự điển (thí dụ epibenthic)

An epi- to mesobenthic species (Ref. 89865). Large individuals are reported to feed on Pleurogrammus monopterygius and miscellaneous other fishes, while the smaller ones feed on crabs and amphipods; in the eastern Bering Sea, mature individuals feed primarily on Theragra chalcogramma, miscellaneous fishes, and Chionocetescrabs (Ref. 89865). 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 12.9-15.0 cm long and 8.9-9.1 cm wide (Ref. 41249, 41298).

Life cycle and mating behavior Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng

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).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối : McEachran, John | Người cộng tác

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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 27 July 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

Thêm thông tin

Tên thường gặp
Các synonym ( Các tên trùng)
Trao đổi chất
Các động vật ăn mồi
Độc học sinh thái
Sự tái sinh sản
Chín muồi sinh dục
Đẻ trứng
Tổng số cá thể đẻ trứng
Sự sinh sản
Các trứng
Egg development
Age/Size
Sự sinh trưởng
Length-weight
Length-length
Length-frequencies
Sinh trắc học
Hình thái học
Ấu trùng
Sự biến động ấu trùng
Bổ xung
Sự phong phú
BRUVS
Các tài liệu tham khảo
Nuôi trồng thủy sản
Tổng quan nuôi trồng thủy sản
Các giống
Di truyền
Electrophoreses
Di sản
Các bệnh
Chế biến
Nutrients
Mass conversion
Người cộng tác
Các tranh (Ảnh)
Stamps, Coins Misc.
Các âm thanh
Ngộ độc dạng ciguetera
Tốc độ
Dạng bơi
Vùng mang
Otoliths
Não bộ
tầm nhìn

Các công cụ

Special reports

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Các nguồn internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Giống, Các loài | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Cây Đời sống | Wikipedia: Go, tìm | World Records Freshwater Fishing | Tạp chí Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): -0.5 - 5.8, mean 1.5 °C (based on 556 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00312 - 0.00485), b=3.10 (3.05 - 3.15), in cm total length, based on LWR estimates for this species (Ref. 93245).
Mức dinh dưỡng (Ref. 69278):  4.2   ±0.5 se; based on diet studies.
Generation time: 12.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Thích nghi nhanh (Ref. 120179):  thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (69 of 100).