分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Perciformes/Percoidei (Perchs) >
Percidae (Perches) > Etheostomatinae
Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma (Ref. 45335); sagitta: The specific epithet sagitta means arrow (Ref. 10294).
More on authors: Jordan & Swain.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 亞熱帶的; 38°N - 36°N
North America: upper Cumberland River drainage in Kentucky and Tennessee, USA.
北美洲: 發現在肯塔基州與美國田納西州只在肯塔基州上游與坎伯蘭河上游流域中。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723)
简单描述
型态特徵 | 形态测量图
Distinguished by having the following characters: body long and slender; snout long and pointed; caudal fin base with 2 black spots partially fused into short bar; straw colored to olive above, 6-9 brown saddles; 7-9 large green Us alternate with orange bars (faint on female) along side; yellow below. Breeding males with bright orange bars on side, red-orange edge on 1st dorsal fin, bands of red -orange spots on 2nd dorsal and caudal fins, blue-green anal and pelvic fins. Lateral line usually incomplete, with 55-69 lateral scales, usually 63 or more; and 49-66 pored lateral-line scales, usually more than 52 (Ref. 86798).
Inhabits rocky riffles and pools of headwaters, creeks and small rivers (Ref. 5723, 10294). Feeds on mayfly nymphs (heptageniids, baetids), blackfly and midge larvae, and lesser numbers of caddisfly, stonefly, and beetle larvae (Ref. 10294).
栖息于河川源头,小溪与小河的岩石急流与水池。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
北美洲: 發現在肯塔基州與美國田納西州只在肯塔基州上游與坎伯蘭河上游流域中。
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
人类利用
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00235 - 0.01227), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Generation time: 1.6 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (K=0.67-0.79).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
