分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Eupercaria/misc (Various families in series Eupercaria)
鱸形目 (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
石首魚科 (Drums or croakers)
Etymology: Cynoscion: Greek, kyon = dog + Greek, odous = teeth + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).
Eponymy: Presley Norton Yoder (1932–1993) was an independently wealthy US & Ecuadorian archaeologist and founder of the Research Centre of Salango, Ecuador. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 底中水層性; 非遷移的; 深度上下限 100 - 200 m (Ref. 43583). 熱帶; 0°S - 5°S
Southeast Pacific: Ecuador.
東南太平洋: 厄瓜多。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 55763); common length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 55763)
背棘 (總數) : 11 - 12; 背的軟條 (總數) : 23 - 26; 臀棘: 2; 臀鰭軟條: 9 - 10; 脊椎骨: 25. A moderate sized Cynoscion, the largest specimen is 353 mm TL. It can be distinguished from its congeners by : a long head contained 2.8 to 3 times in SL, a large eye contained 5.1 to 5.8 times in head length (HL), a low gill raker count, a relatively high number of dorsal-fin rays (23-26), a long pectoral fin contained 1.6 in HL, a dark steel grey color on its dorsum and a black pigmented oral cavity.
一個中等大小的 Cynoscion, 最大的標本是 353 mm TL。 它能被與它的同類區分被 : 一個長的頭部包含了 2.8 到 3 標準體長比率, 一個大的眼包含 5.1 到 5.8 倍頭長 (HL), 包含 1.6 HL比率的一個低的鰓耙數，一個背鰭鰭條 (23-26) 的相當高數字一個長的胸鰭, 深色的鐵灰色的色彩在它的背面與一個黑色的口腔。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
東南太平洋: 厄瓜多。
Béarez, P., 2001. Description of a new weakfish, Cynoscion nortoni, from Ecuador with a note on the distribution of Umbrina bussingi (Perciformes: Sciaenidae). Rev. Biol. Trop. 49 Suppl. 1:59-65. (Ref. 43583)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 低經濟
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Estimates based on models
Preferred temperature (Ref.
123201): 13.9 - 16, mean 15 °C (based on 3 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00386 - 0.01791), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
