🐟Squatina squatina
扁鯊（學名：Squatina squatina）是扁鯊科下的一種鯊魚，曾一度廣佈在大西洋東北部的海岸水域。它們的身體扁平，胸鰭及臀鰭也很闊，可以將自己偽裝成為海床的一部份。它們的特徵是有圓錐狀的觸鬚，背上沒有刺及呈灰色或褐色，有一些深淺色的斑紋。它們可以長達2.4米。 扁鯊是夜間活動的，會將自己隱藏在沉積中埋伏獵物。它們主要吃底棲區的硬骨魚、鰩科及無脊椎動物。它們是無胎盤胎生的，雌鯊每隔一年會生7至25條幼鯊。它們並不怎麼帶有攻擊性，但若受到騷擾，則會很快的咬對方。扁鯊早至古希臘時就已經被漁獵作為食物，並被當作安康魚賣到歐洲。自20世紀中葉，頻繁的漁業令它們的數量大減，現已從北部滅絕。餘下的群落也因繁殖率低而面臨威脅。國際自然保護聯盟故此將它們列為極危。
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2019.
- Body mass
- 80 kg
- Body length
- 1.5 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- not recorded
Everything we know about the Squatina squatina
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass80 kgmaximum recordedFishBaseDetails ↓Hide ↑
Source: FishBase · v25.04 · CC BY-NC 4.0
Body length1.5 mrecord 1.83 m · FishBasetypical adultFishBaseOther figures ↓Hide ↑
Record: largest individual on record
Source: FishBase · v25.04 · CC BY-NC 4.0
By sex
- Female2.44 mFishBasev25.04
Trophic level4.05FishBaseDetails ↓Hide ↑
Source: FishBase · v25.04, estimate table · CC BY-NC 4.0
DietcarnivoreaverageDetails ↓Hide ↑
From trophic level 4.05 (FishBase): <2.2 herbivore, 2.2–2.8 omnivore, >2.8 carnivore.
Danger to humanstraumatogenicFishBaseDetails ↓Hide ↑
Source: FishBase · v25.04 · CC BY-NC 4.0
Volume l80 LaverageDetails ↓Hide ↑
Body mass at ~1.0 kg/L, the density of vertebrate tissue.
average = a mean across sexes or species in a group.
Not recorded for Squatina squatina yet: shoulder height, top speed, bite force, maximum lifespan.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classElasmobranchii
- ›orderSquatiniformes
- ›familySquatinidae
- ›genusSquatina
- ›speciesSquatina squatina
- subphylumVertebrata
- superclassGnathostomata
- classSharks & rays · Chondrichthyes
- subclassElasmobranchii
All 7 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- classSharks & rays · Chondrichthyes
- subclassElasmobranchii
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