分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Holostei >
Lepisosteiformes (Gars) >
Lepisosteidae (Gars)
Etymology: Atractosteus: Greek, atraktos, arrow + Greek, osteon = bone (Ref. 45335); spatula: Atractosteus meaning spindle bone, and spatula in reference to the broad, elongated snout (Ref. 79012).
More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的; 深度上下限 0 - ? m (Ref. 55223). 亞熱帶的; 44°N - 20°N, 101°W - 82°W (Ref. 55223)
North America: ranges from Mississippi River basin from southwestern Ohio and southern Illinois in USA south to Gulf of Mexico; Gulf of Mexico Coastal Plain from Enconfina River in Florida, USA to Veracruz, Mexico.
北美洲: 在美國的來自西南方的俄亥俄州與伊利諾州南部的範圍從密西西比河流域南至墨西哥灣; 墨西哥灣海岸平原從美國佛羅里達的 Enconfina 河到墨西哥的Veracruz。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 305 cm OT 雄鱼/尚未辨别雌雄; (Ref. 3221); common length : 200 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3728); 最大体重: 137.0 kg (Ref. 58490)
Large size and broad, short snout. Light dorsal stripe. Dark olivaceous brown above and white to yellowish beneath. Dark brown blotches on all fins (Ref. 37032).
巨大的体型与宽的, 短的吻。 淡色的背鳍斑纹。 深橄榄褐色的上方与腹面白色到淡黄色的。 在所有的鳍上的深褐色的斑块.(参考文献 37032)
Facultative air-breathing (Ref. 126274); Adults inhabit sluggish pools and backwaters of large rivers, swamps, bayous, and lakes. Rarely enter brackish and marine waters (Ref. 5723). Feed on blue crabs, turtles, waterfowl or other birds and small mammals (Ref. 10294). Giant of the gars (Ref. 5723). Marketed fresh (Ref. 37032).
栖息于大河，沼泽，海湾与湖的滞水潭与洄水区。 很少进入半咸淡水与海洋。 一个相当缓动性鱼但是是捕食各种不同类型的鱼与甲壳动物的一个狼吞虎咽的掠食者。 大型的雀鳝.(参考文献 5723) 在市场上销售生鲜地了。 (参考文献 37032)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
北美洲: 在美國的來自西南方的俄亥俄州與伊利諾州南部的範圍從密西西比河流域南至墨西哥灣; 墨西哥灣海岸平原從美國佛羅里達的 Enconfina 河到墨西哥的Veracruz。
Etnier, D.A. and W.C. Starnes, 1993. The fishes of Tennessee. The University of Tennessee Press, Knoxville, Tennessee, USA. (pls. check date). (Ref. 10294)
人类利用
渔业: 低经济; 游钓鱼种: 是的; 水族馆: 公众的水族馆
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6406 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00121 - 0.00751), b=3.18 (2.96 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.67 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
