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Rhinobatos annandalei Norman, 1926

Annandale's guitarfish
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Rhinobatos annandalei
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335).
More on author: Norman.

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

海; 汽水性の 底生の; 両側回遊性 (Ref. 51243); 深さの範囲 40 - 90 m (Ref. 114953). Tropical; 26°N - 5°N, 56°E - 99°E (Ref. 114953)

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Indian Ocean: Oman to the Andaman Sea, off Myanmar.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 89.0 cm TL オス/雌雄の選別がない; (Ref. 121648); 65.0 cm TL (female); 最大公表体重: 2.4 kg (Ref. 121648); 最大公表体重: 2.4 kg

生物学     用語集 (例 epibenthic)

Primarily benthic (Ref. 114953). Occurs mainly in the marine environment, but also enters the lower reaches of rivers. Ovoviviparous (Ref. 50449). Males mature by 68 cm TL; born at ca. 20 cm TL. Females produces litters up to 6 pups (Ref. 114953). Minimum depth range from Ref. 121775.

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

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

Last, P.R., B. Séret and G.J.P. Naylor, 2019. Description of Rhinobatos ranongensis sp. nov.(Rhinopristiformes: Rhinobatidae) from the Andaman Sea and Bay of Bengal with a review of its northern Indian Ocean congeners. Zootaxa 4576(2):257-287. (Ref. 123963)

IUCNのレッドリストの状況は (Ref. 130435)

  絶滅寸前の危機的状況 (CR) (A2d); Date assessed: 13 May 2020

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

FAO - 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=0.00178 (0.00118 - 0.00268), b=3.10 (2.98 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  3.7   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低い, ４．５年～１４年の倍増期間の最小個体群 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  High vulnerability (56 of 100).