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: Roncador: Spanish, roncar, roncador = snore, snort (1882) (Ref. 45335).
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 1 - 22 m (Ref. 96339). 亞熱帶的; 42°N - 22°N, 125°W - 106°W
Eastern Pacific: Point Conception in California, USA to southern Baja California, Mexico.
東太平洋: 到墨西哥的下加利福尼亞南部的美國加州的 Point Conception。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 70.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9118); common length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9118); 最大體重: 4.8 kg (Ref. 2850); 最大年齡: 15 年 (Ref. 56049)
Occur in sandy shores and bays, mostly in shallow surf zones, but also to 15 m depth. Often found near rocks and entrances to bays. Usually form small groups, but aggregate for spawning. Pelagic spawners (Ref. 56049). Feed on invertebrates, such as marine worms, clams, crabs and small crustaceans.
出現於沙的海岸與海灣, 大部份在水淺的海浪區中, 也對 15 公尺深。 時常在岩石與通往海灣的入口附近發現。 通常形成小群魚群，但是聚集進行產卵。 吃無脊椎動物，例如海洋的蠕蟲，蛤，螃蟹與小型甲殼動物。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Pelagic spawner (Ref. 56049).東太平洋: 到墨西哥的下加利福尼亞南部的美國加州的 Point Conception。
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
人類使用
漁業: 商業性; 游釣魚種: 是的
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Estimates based on models
Preferred temperature (Ref.
123201): 15.9 - 19.5, mean 17.8 °C (based on 20 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00413 - 0.01752), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.44 se; based on food items.
Generation time: 3.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tm=2.5; tmax=15).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
Nutrients (Ref.
124155): Calcium = 69.6 [38.7, 139.0] mg/100g; Iron = 0.979 [0.496, 1.744] mg/100g; Protein = 19.6 [18.5, 20.7] %; Omega3 = 0.261 [0.142, 0.434] g/100g; Selenium = 23.6 [12.6, 48.5] μg/100g; VitaminA = 9.3 [3.0, 31.4] μg/100g; Zinc = 0.726 [0.527, 1.061] mg/100g (wet weight);
