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) >
Rhinopristiformes (Shovelnose rays)
鰩目 (Shovelnose rays) >
Rhinobatidae (Guitarfishes)
琵琶鱝科 (Guitarfishes)
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 0 - 30 m (Ref. 26938). 亞熱帶的; 36°N - 18°N, 99°W - 75°W (Ref. 55283)
Western Atlantic: North Carolina, USA to the northern Gulf of Mexico and Yucatan, Mexico.
西大西洋: 美國北卡羅萊那州到墨西哥灣北部與墨西哥的尤卡坦半島。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 75.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9710); 76.0 cm TL (female); common length : 60.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6077)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Elongate, with a heart-shaped disk terminating in a wedge-shaped snout with a few enlarged tubercles on tip (Ref. 26938). Ashy gray to olive brown or chocolate brown. Entire upper surface is thickly freckled with several hundred small whitish dots. Lower surface is pale yellow or yellowish white or plain white, fins slightly darker than trunk (Ref. 6902).
延長, 具有一個心形的圓盤終端在一楔形的在頂端上吻部有一些增大的小瘤.(參考文獻 26938) 灰色的到黃褐色或褐色。 整個的上表皮是有厚的班點有幾百個小的微白色的點。 下表面是白黃色或黃白色或全白色, 鰭顏色略深的超過軀幹.(參考文獻 6902)
Inhabits sandy and weedy bottoms, sometimes near patch reefs. Also found along beaches from shoreline to depths of 30 m (Ref. 26938). Usually buried in the sand or mud. Feeds on mollusks and crustaceans. Ovoviviparous, with up to 6 in a litter (Ref. 12951). Size at birth 20 cm (Ref. 12951). Generally uncommon (Ref. 9710).
棲息於沙而雜草叢生的底部, 有時在礁坪的附近。 也發現沿著來自海岸線到深度的海灘 30 公尺。 (參考文獻 26938) 通常埋藏在沙或泥之中。 吃軟體動物與甲殼動物。 卵胎生的, 多達 6 一胎.(參考文獻 12951) 出生時的大小 20 公分。 (參考文獻 12951) 不常見的.(參考文獻 9710)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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).西大西洋: 美國北卡羅萊那州到墨西哥灣北部與墨西哥的尤卡坦半島。
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
人類使用
漁業: 自給性漁業
工具
特別的報告
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網路資源
Estimates based on models
Preferred temperature (Ref.
123201): 23.4 - 27.8, mean 26.3 °C (based on 280 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00134 - 0.00591), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.50 se; based on food items.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
Nutrients (Ref.
124155): Calcium = 12.2 [1.5, 49.3] mg/100g; Iron = 0.424 [0.102, 1.177] mg/100g; Protein = 20.1 [17.9, 22.2] %; Omega3 = 0.128 [0.053, 0.310] g/100g; Selenium = 11.3 [3.2, 35.3] μg/100g; VitaminA = 33 [11, 104] μg/100g; Zinc = 0.63 [0.30, 1.34] mg/100g (wet weight);
