分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (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.
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.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
海洋 居於水底的; 深度上下限 20 - 1450 m (Ref. 56527), usually 120 - 450 m (Ref. 56527). 溫帶; 2°C - 7°C (Ref. 56527)
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
North Pacific: Bering Sea to southeastern Alaska.
北太平洋: 白令海到阿拉斯加州東南方。
北太平洋: 白令海到阿拉斯加州東南方。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 90.5, range 81 - 95 cm
Max length : 135 cm TL 雄魚/尚未辨別雌雄; (Ref. 85855); 最大體重: 18.2 kg (Ref. 56527)
Max length : 135 cm TL 雄魚/尚未辨別雌雄; (Ref. 85855); 最大體重: 18.2 kg (Ref. 56527)
簡短描述 檢索表 | 型態特徵 | 形態測量圖
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).
Body shape (shape guide): other.
Body shape (shape guide): other.
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).
卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 12.9-15.0 公分長與 8.9-9.1 公分寬的.(參考文獻 41249,41298)
卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 12.9-15.0 公分長與 8.9-9.1 公分寬的.(參考文獻 41249,41298)
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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).北太平洋: 白令海到阿拉斯加州東南方。
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 : McEachran, John | 合作者
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)
CITES
Not Evaluated
對人類具威脅
無害處的
人類使用
漁業: bycatch
FAO - Publication: search | FishSource |
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網路資源
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基於模型的估計
|
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00417 (0.00340 - 0.00511), b=3.09 (3.03 - 3.15), in cm total length, based on LWR estimates for this species (Ref. 93245). |
|
營養階層 (參考文獻 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. |
|
回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100). |
| Rate of population increase | Prior r = 0.12, 95% CL = 0.08 - 0.18, Based on 1 full stock assessment. |
|
釣魚的脆弱性 (Ref. 59153) |
High to very high vulnerability (69 of 100). 🛈 |
|
價格種類 (Ref. 80766) |
Medium. |