分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Esociformes (Pikes and mudminnows) >
Esocidae (Pikes)
Etymology: Esox: From Greek, isox and also related with the Celtic root, eog, ehawc = salmon (Ref. 45335); niger: niger meaning black (Ref. 10294).
More on author: Lesueur.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: ? - 22.0; 非遷移的; 深度上下限 ? - 6 m (Ref. 39106). 10°C - 20°C (Ref. 2059); 46°N - 25°N
North America: Nova Scotia, Canada (introduced) to southern Florida, USA; Gulf coast west to Sabine Lake drainage in Louisiana, USA; Mississippi River basin north to Kentucky and Missouri, USA. Introduced to Lakes Ontario and Erie drainages and elsewhere.
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 16 - ? cm
Max length : 99.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); common length : 41.9 cm TL 雄魚/尚未辨別雌雄; (Ref. 12193); 最大體重: 4.3 kg (Ref. 4699); 最大年齡: 9 年 (Ref. 12193)
背棘 (總數) : 0; 背的軟條 (總數) : 17 - 21; 臀棘: 0; 臀鰭軟條: 11 - 13; 脊椎骨: 49 - 54. Body rather slender, somewhat compressed, deepest near middle. Head large, naked, and depressed above, profile slightly concave over snout; snout long, broad, and rounded; mouth large, nearly horizontal; lower jaw projecting; maxillary extending to, or slightly beyond anterior margin of pupil. Lateral teeth on lower jaw and vomer enlarged. Cheek and opercle fully scaled. Gill rakers on lateral and media surfaces of arches.
Pigmentation: Greenish above, sometimes very dark, venter pale; scales above with golden luster; laterally with light areas enclosed by dark chain-like markings; dark upper side interrupted by light vertical bars; suborbital bar almost vertical or with slight posterior slant; rays of dorsal, anal, pectorals, and pelvic fins with light interradial membranes, caudal fin base marbled with dark pigment, tips dusky; pupil of eye yellow.
Live in vegetated lakes, swamps, and backwaters and quiet pools of creeks and small to medium rivers (Ref. 26373). Also found in deep, cold water with little or no vegetation (Ref. 39109, 39108). Adults migrate to deeper water during winter (Ref. 39110, 39097, 39111) undertaking shoreward spawning migrations soon after spring ice disappears (Ref. 39109). Oviparous (Ref. 205). Juveniles tend to lie motionless near shore or burrow themselves in mud beneath debris (Ref. 39112). Larvae hide among vegetation (Ref. 39113). Oviparous, with pelagic eggs.
Crossman, E.J., 1996. Taxonomy and distribution. p. 1-11. In J.F. Craig (ed.) Pike biology and exploration. Chapman and Hall, London. 298 p. (Ref. 26373)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 01 December 2011
人類使用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5157 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00259 - 0.00884), b=3.07 (2.91 - 3.23), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.46 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tm=1-4; tmax=9; Fec=936).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
