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Entosphenus folletti Vladykov & Kott, 1976

Northern California brook lamprey
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Entosphenus folletti
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Cephalaspidomorphi 头甲鱼纲 (八目鳗) (lampreys) > Petromyzontiformes (Lampreys) > Petromyzontidae (Northern lampreys) > Lampetrinae

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 居于水底的; 非迁移的.   亞熱帶的

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

North America: known only from the types collected from Willow Creek, upper Klamath river system, California.
北美洲: 只有模式標本採集自加州克拉瑪斯河流域上游的柳樹小溪了。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 30.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12280)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 0; 臀棘 0. Adults: 17.6-22.8 cm TL; body proportions, as percentage of TL (based on 6 specimens measuring 18.6-22.8 cm TL): 12.3-14.5 prebranchial length, 9.2-10.6 branchial length, 42.7-48.6 trunk length, 28.4-32.7 tail length, 1.7-2.3 eye length and 6.6-7.8 disc length; 5.7 urogenital papilla length (percentage of branchial length in one spawning male measuring 21 cm TL); trunk myomeres, 61-65. Adult dentition: supraoral lamina, 3 unicuspid teeth, the median one smaller than the lateral ones; infraoral lamina, 5 unicuspid teeth; 4 endolaterals on each side; endolateral formula, typically 2-3-3-2, the fourth endolateral can also be unicuspid; 1-2 rows of anterials; first row of anterials, 2 unicuspid teeth; exolaterals absent; 1 row of posterials with 13-18 teeth, of which 0-4 are bicuspid and the rest unicuspid (some of these teeth may be embedded in the oral mucosa); transverse lingual lamina, 14-20 unicuspid teeth, the median one slightly enlarged; longitudinal lingual laminae teeth are too poorly developed to be counted. Velar tentacles in adults, 8-9, with tubercles; median tentacle is about the same size as the lateral ones immediately next to it; body coloration (preserved), dark brown on dorsal, lateral, and ventral aspects; lateral line neuromasts darkly pigmented; second dorsal fin pigmentation, +++; caudal fin pigmentation, +++; caudal fin shape, spade-like; oral papillae, 13.
四对侧齿板 (尖头 =2-3-3-2);上口板有 4 或较少的钝的牙尖。

生物学特性     字汇 (例如 epibenthic)

Freshwater; in creeks and rivers (Ref. 89241). Non-parasitic lamprey; adults do not feed but remain in the streams where they soon spawn and die. Ammocoetes larvae live as filter feeders in the bottom mud for at least 4 years before metamorphosis.

非寄生的八目鳗; 成鱼不进食但是留在溪流中在哪里它们将要产卵而且死。 幼八目鳗对于锐变前的至少 4 年在底部泥中生活如滤食者。

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

北美洲: 只有模式標本採集自加州克拉瑪斯河流域上游的柳樹小溪了。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

McGinnis, S.M., 1984. Freshwater fishes of California. University of California Press, Berkeley. 316 p. (Ref. 12280)

世界自然保护联盟红皮书 (Ref. 120744)

  不评价 

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

渔业: 没有兴趣
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特别资料

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网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00120 (0.00052 - 0.00278), b=3.00 (2.80 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.2   ±0.7 se; Based on size and trophs of closest relatives
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (assuming tm=5).
脆弱性 (Ref. 59153):  Moderate to high vulnerability (50 of 100) .