Common names from other countries
分类 / Names
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Holostei >
Lepisosteiformes (Gars) >
Lepisosteidae (Gars)
Etymology: Lepisosteus: Greek, lepis = scale + Greek, osteon = bone; bony sacled (Ref. 45335); osseus: From the word osseus, meaning bony (Ref. 10294).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的; pH range: 7.0 - 25.0; dH range: 10 - 15; 深度上下限 0 - ? m (Ref. 55225), usually 0 - ? m (Ref. 55225). 溫帶; 12°C - 20°C (Ref. 2060); 48°N - 23°N, 99°W - 69°W (Ref. 55225)
North and Central America: Atlantic Slope from Delaware River in New Jersey to central Florisa; St. Lawrence River in Quebec through Great Lakes and Mississippi River basin to Red River (Hudson Bay basin), North Dakota, and south to Louisiana; Gulf Slope drainages from central Florida to Rio Grande drainage in Texas and Mexico.
中美洲與北美洲: 沿著海岸與內陸的從魁北克到墨西哥北部。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 66.9 range ? - 80 cm
Max length : 200 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 17.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大体重: 22.8 kg (Ref. 4699); 最大年龄: 36 年 (Ref. 12193)
背棘 (总数) : 0; 背的软条 (总数) : 6 - 9; 臀棘: 0; 臀鳍软条: 8 - 10. Long narrow snout. Olivaceous brown above and white below. Dark spots on median fins and on body (Ref. 37032). Scales ganoid: thin bony scutes on leading edges of unpaired fins, and on both edges of caudal fin (Ref. 4639).
长的狭窄吻。 背面橄榄褐色而腹面白色的。 在中央的鳍与身体上的深色斑点.(参考文献 37032) 鳞片硬鳞: 在不成对鳍的前缘上的细的骨质鳞甲, 与在尾鳍的两边上.(参考文献 4639)
Facultative air-breathing (Ref. 126274); Adults occur in sluggish pools, backwaters and oxbows of medium to large rivers, and lakes (Ref. 10294). Usually found near vegetation. Occasionally found in brackish waters. Spawning occur in freshwater and possibly slightly brackish water (Ref. 4639). Migrate up rivers during the spawning season (Ref. 4639). Eggs and larvae are demersal and adhesive (Ref. 4639). Voracious predator, feeding on various fishes and crustaceans. The roe is poisonous.
出现在中型到大型河川的滞水潭，洄水区与牛轭弯 , 与湖。 通常发现于植物附近。 偶然地发现于半咸淡水域了。 产卵在淡水中与可能地些微地半淡咸水.(参考文献 4639) 在产卵季节的时候向上洄游到河。 (参考文献 4639) 卵与仔鱼是底栖与聚集在一起的。 (参考文献 4639) 一个狼吞虎咽的掠食者,吃各种不同的鱼与甲壳动物。 鱼白是有毒的。
中美洲與北美洲: 沿著海岸與內陸的從魁北克到墨西哥北部。
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)
CITES (Ref. 128078)
Not Evaluated
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 = 0.5781 [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): 4.2 ±0.73 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (tm=3-6; tmax=36; Fec=1,110).
Fishing Vulnerability (Ref.
59153): High vulnerability (63 of 100).
