分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Perciformes/Percoidei (Perchs)
鱸形目 (Perchs) >
Percidae (Perches)
鱸科 (Perches) > Etheostomatinae
Etymology: Percina: Latin, diminutive of perch = perch (Ref. 45335); tanasi: Named after the former capital of the Cherokee Nation, which was located on the Little Tennessee River, the type locality (Ref. 10294).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 溫帶; 36°N - 34°N
North America: upper Tennessee River drainage of eastern Tennessee and northern Georgia in the USA.
北美洲: 出現在美國只在田納西州東部與喬治亞州北部的田納西河上游流域中。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 9.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5723); 最大年齡: 4 年 (Ref. 12193)
Occurs in gravel and sand runs of medium-sized rivers (Ref. 5723, 10294); also found in creeks (Ref. 10294). Feeds on small pleurocerid river snails, mostly Leptoxis and Lithasia, as well as some physid snails and limpets; also consumes caddisfly larvae (Glossosoma, Hydropsyche, Brachycentrus), midge and blackfly larvae, and a few mayfly nymphs (Ref. 10294).
出現於礫石與沙子中等大小河川的支流;(參考文獻 5723,10294) 也發現於小溪。 (參考文獻 10294) 吃小的 pleurocerid 河蝸牛, 大部份 Leptoxis 與 Lithasia, 以及一些 physid 蝸牛與笠貝; 也消費石蠶幼生 ( Glossosoma ， Hydropsyche, Brachycentrus) ，蚊與黑蠅幼生 , 與一些孚游類蛹。 (參考文獻 10294)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
北美洲: 出現在美國只在田納西州東部與喬治亞州北部的田納西河上游流域中。
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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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=0.00575 (0.00268 - 0.01234), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (tmax=4; Fec=100-600).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
