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African manatee
Sign in to saveAlso known as Trichechus senegalensis, West African manatee
The African manatee (Trichechus senegalensis), also known as the West African manatee, is a species of manatee that inhabits much of the western region of Africa – from Senegal to Angola. It is the only manatee species to be found in the Old World.
OverviewAI-generated
The African manatee, scientifically named *Trichechus senegalensis*, is a species of marine mammal. It belongs to the family Trichechidae within the order Sirenia, class Mammalia, and phylum Chordata. The taxon was described by Link in 1795 and is currently accepted as a valid species. Its parent taxon is *Trichechus*.
This organism inhabits marine, brackish, and freshwater environments. The African manatee is listed as Vulnerable on the IUCN Red List, a status assessed in 2015. It is also included in Appendix I of CITES. The species is known by other names, including Manati de Africa and Lamantin d'Afrique.
Synthesized by Vinony from 22 facts across 4 sources: Wikidata, WoRMS, IUCN Red List, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Species
VulnerableAfrican manatee
Species
- PhylumChordata
- ClassMammalia
- OrderSirenia
- FamilyTrichechidae
二名法 Trichechus senegalensis(Link, 1795) 分佈範圍:西非沿海和尼日河流域 西非海牛從很久以前就是非洲海岸原住民的肉、油脂與民俗療法耗材的重要來源,在民間傳說中也佔有相當重要的地位。牠們可能是中、西部非洲美人魚神話的由來,被稱為「mami-wata」。西非海牛的生態情形充滿神祕性,也許是因應獵捕壓力的結果。雖然在各地區的捕獵威脅其生存,但牠們大致仍維持以往的分布範圍。 目录 1 基本資料 2 外型特徵 3 分布 4 習性 5 生殖 6 食性 7 現狀 8 參考書目 基本資料 其他俗名: (英)African manatee, Seacow (法)Lamantin d'Afrique, Lamantin du Sénégal (西)Manatí de Senegal 出生時身長體重:約80-150cm、30kg 最大身長體重紀錄:雄-3.3m、雌-3m;1,400kg 壽命:可能達60年以上。 外型特徵 西非海牛的外觀接近其近親西印度海牛,體型呈紡錘狀,背部寬闊無背鰭,頭部比例小。體色灰,皮膚厚而硬,略微粗糙,體毛稀疏。棲息於海岸的個體可能有藤壺附著。眼睛小且略微突出(與西度印度海牛不同,其眼睛較為深陷),沒有外耳殼。吻部比西印度海牛肥厚而較短,可能是為了適應攝食浮水、挺水植物與生長於淺灘的植物。前肢外側有三至四個趾甲殘留。僅具臼齒,會不斷地更換。 分布 西非海牛棲息於海岸與河流水域,由茅利塔尼亞南部的塞內加爾河(Senegal River)及其支流往南至安哥拉的廣薩河(Cuanza River)。牠們會往大河的上游移動,直到被急流、瀑布或淺灘阻擋其行動為止。牠們曾自尼日河(Niger River)河口上溯2,000公里至內陸三角洲的馬利,在該處有時會被急流困住。在洛貢河(Logone River)、沙里河(Chari River)流入查德湖(Lake Chad)之間的水域有時也可發現其蹤跡。部分待在大湖以度過旱季的個體會被困住,但在雨季水漲時又可與主要河道連結。西非海牛偏好平靜的河口與海岸潟湖,但只要是適合的水域皆可發現牠們的蹤跡。 習性 西非海牛通常為獨自行動,雖然在休息、覓食與交配時可能會形成鬆散的群體,但基本的社會單位是母子對。其叫聲沒有詳細的研究資料,推測母子間可能會以高音的軋軋聲與尖銳聲彼此連繫。在象牙海岸的海牛有明顯的一日活動區隔現象,白天休息、晚上移動與進食。增加夜間的活動可能是對獵捕壓力下的因應。西非海牛傾向於在潟湖與河流中部,或紅樹林根部與懸垂植物下休息,這使得牠們更難被發現。牠們有散步的習性,會在潟湖、海岸線與河流間作季節性的移動,有時會長達上百哩遠。部分個體曾在兩天內移動了75公里。 生殖 人們對西非海牛的生殖行為幾乎一無所知,學者推測應與西印度海牛近似。根據當地獵人以及研究者少數目擊的報告指出,發情
via IUCN
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Trichechus
- Image
- African manatee at Coex Aquarium, South Korea.jpg
Show 8 more facts
- taxon rank
- species
- IUCN conservation status
- Vulnerable
- Commons category
- Trichechus senegalensis
- taxon name
- Trichechus senegalensis
- Commons gallery
- Trichechus senegalensis
- taxon common name
- Afrikanischer Manati
- CITES Appendix
- Appendix I of CITES
- short name
- T. senegalensis
Sources (1)
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Encyclopedic overview
The African manatee (Trichechus senegalensis), also known as the West African manatee, is a species of manatee that inhabits much of Western Africa – from Senegal to Angola. It is the only manatee species to be found in the Old World, as well as one of the two living Sirenians that live in the Old World, the other being the Dugong.
Taxonomy
Excerpted from Wikipedia’s “African manatee” article, available under the CC BY-SA 4.0 licence.