Acroteriobatus annulatus, Lesser sandshark : fisheries, gamefish, aquarium

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Acroteriobatus annulatus (Müller & Henle, 1841)

Lesser sandshark
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Acroteriobatus annulatus
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
  More on authors: Müller & Henle.

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

; 海; 汽水性の 底生の; 深さの範囲 75 - ? m (Ref. 114953).   Subtropical; 17°S - 36°S, 10°E - 34°E (Ref. 114953)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Southeast Atlantic: Namibia to central Natal, South Africa. Record from Madagascar is uncertain (Ref. 3919).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 140 cm TL オス/雌雄の選別がない; (Ref. 3919)

生物学     用語集 (例 epibenthic)

Found from the surf line to about 70 m depth (Ref. 5578), also reported as common in shallow waters to at least 75 m depth (Ref. 114953); also enters estuaries (Ref. 27121). Feeds on crustaceans, bivalves, polychaete worms and small bony fishes (Ref. 5578). Ovoviviparous (Ref. 50449). Males mature at ca. 59 cm TL, females at 62-65 cm TL; born at ca. 23 cm TL. Produces litters of 2-10 pups (Ref. 114953). Taken by surf anglers (Ref. 3919). Flesh highly esteemed (Ref. 3919). It is parasitised by the monogeneans Pseudoleptobothrium christisoni on the dorsal skin surface (Ref. 124055) and Neoheterocotyle robii on the gill lamellae (Ref. 124054).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). 2-10 young born in the summer (Ref. 5578).

主な参考文献 Upload your references | 参考文献 | コーディネーター : McEachran, John | 協力者

Compagno, L.J.V., 1986. Rhinobatidae. p. 128-131. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3919)

IUCNのレッドリストの状況は (Ref. 123251)

  攻撃されやすい (VU) (A2bcd); Date assessed: 01 August 2019

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 商業; ゲームフィッシュ: はい; 水族館・水槽: 商業
FAO - Publication: search | FishSource |

より多くの情報

共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
卵の集合体
生産力

卵の開発
Age/Size
成長
体長-重さ
Length-length
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形態計測学
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BRUVS
参考文献
水産養殖
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シガテラ(食中毒の名前)
速度
泳ぐ 型式
カマ
Otoliths

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インターネットの情報源

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Estimates based on models

Preferred temperature (Ref. 115969): 16.1 - 25.7, mean 22 °C (based on 36 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00126 - 0.00381), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  3.4   ±0.48 se; based on food items.
回復力 (Ref. 120179):  非常に低い, 14年以上の倍増期間の最小個体群 (Fec=2).
弱み (Ref. 59153):  Moderate to high vulnerability (49 of 100) .
価格帯 (Ref. 80766):   Low.