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Squatina formosa Shen & Ting, 1972

Taiwan angleshark
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Image of Squatina formosa (Taiwan angleshark)
Squatina formosa
Female picture by Kochi University, Lab. Of Marine Biology, Faculty of Science (BSKU)

分類 / Names 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) > Squatiniformes (Angel sharks) 扁鯊目 (Angel sharks) > Squatinidae (Angel sharks) 琵琶鮫科 (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned). (See ETYFish);  formosa: Named for Formosa (Taiwan), type locality. (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋 深海底的; 深度上下限 183 - 220 m (Ref. 54905). 深水域; 24°N - 22°N, 120°E - 121°E (Ref. 54905)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

North Western Pacific: East coast of Taiwan and Ryuku Islands to SE Japan to Izu Peninsula (Ref. 84150); misidentifiction of S. caillieti in the Philippines (Ref. 86399).
西太平洋: 台灣與菲律賓的東北與西南海岸。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 55.4 cm TL 雄魚/尚未辨別雌雄; (Ref. 84150)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 0. Taiwan angelshark Squatina formosa has broad pectoral fins with outer corner more obtuse and free rear tips narrowly subangular; nasal barbels apparently simple, narrow and tapered. Anterior nasal flaps smooth to weakly fringed; dermal folds on sides of head possibly with a triangular lobe. Rear tip of inner margin of pelvic fins reaching little beyond origin of first dorsal. Very short hypocercal tail. Rows of small spines on midline of back and tail, and on snout and between eyes. Color: no ocelli (eye-like spot) on body (Ref. 247, 31369).
台灣琵琶鮫 Squatina formosa 寬的胸鰭有外部的角落更圓頭的與鰭游離後端狹窄子有角; 鼻骨觸鬚顯然單一, 狹窄的而且成錐形。 前鼻瓣平滑的到微弱地邊緣了; 在頭側上的表皮的摺層可能有一個三角形的葉。 超過第一背鰭的起源一點點的腹鰭的內緣的後頂端。 非常短的 hypocercal 尾部。 在背面與尾部的中線上的列的小棘, 與在吻上與在眼之間。 顏色: 沒有在身體上的假眼斑 (眼狀的斑點).(參考文獻 247,31369)

生物學特性     字彙 (例如 epibenthic)

A little-known angelshark found on the outer continental shelf. Possibly larger. Ovoviviparous (Ref. 50449).

所知極少的琵琶鮫發現於大陸棚外緣了。 可能比較大的。 卵胎生的.(參考文獻 50449)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

Ovoviviparous, embryos feed solely on yolk (Ref. 50449).西太平洋: 台灣與菲律賓的東北與西南海岸。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Compagno, Leonard J.V. | 合作者

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

IUCN 瀕危狀態 (Ref. 130435)

  瀕危 (EN) (A2d); Date assessed: 29 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  引起創傷的





人類使用

漁業: 沒有興趣
FAO - 漁業: 魚種描繪; Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00293 - 0.01558), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.8   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).