Achondrostoma occidentale

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Achondrostoma occidentale (Robalo, Almada, Sousa Santos, Moreira & Doadrio, 2005)

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drawing shows typical species in Leuciscidae.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) > Leuciscidae (Minnows) > Leuciscinae
Etymology: Achondrostoma: Name refers to the absence of horny plate on the mouth.;  occidentale: From the Latin name occidentale, in reference to the occurrence of this species in Portugal area known as Oeste, meaning west in English..

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

; 淡水 底中水层性. 温带

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Europe: Alcabrichel, Sizandro and Safarujo drainages in Estremadura, Portugal (Ref. 55625). Reported from Iberian Peninsula, Spain (Ref. 119049).
欧洲: 葡萄牙。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 9.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 59043)

简单描述 型态特徵 | 形态测量图

Belongs to the Chondrostoma arcasii - C. oligolepis species group characterized by lack of horny blade on the lower lip and having a lateral line scale which is much lower than other bladeless species of Chondrostoma. Distinguished from C. arcasii and C. oligolepis by the following combination of characters: 40-43 canaliculate scales on the lateral line; 6-7 scales above the lateral line; 2-3 scales below the lateral line. Axillary pelvic scale shorter than or equal to the insertion of the pelvic fin; and the coronoid process of the dentary is very thick (Ref. 55625). Diagnosed from its congeners by the possession of the following characters: lateral line usually with 37-41 + 2-3 scales; 3-4 (modally 3) scale rows between lateral line and pelvic fin origin; 14 circumpeduncular scale rows; eye diameter greater than snout length; snout usually pointed, conical; and ventral profile of head without marked angle at articulation of lower jaw (Ref. 59043).
属于 Chondrostoma arcasii- C. oligolepis 种群在下面的唇上特征为缺乏角的叶片了，而且有一个侧线鳞片是 Chondrostoma 的多低于其他无叶片种。 与 C. arcasii 与 C. oligolepis 区分了藉由跟随组合特征: 在侧线上的 40-43个 canaliculate 鳞片; 在侧线上面的 6-7 鳞片; 在侧线之下的 2-3个鳞片。 腋窝的腹鳍鳞片短于或等于腹鳍的嵌入; 而且齒骨的下顎齒骨冠突非常厚.(參考文獻 55625)

生物学特性     字汇 (例如 epibenthic)

Found in small coastal streams that have a greatly reduced water flow in the dry summer period (Ref. 55625). During dry summer time, fish become concentrated in a few pools seeking shelter in shady areas under the cover of vegetation (Ref. 55625). Occur in lower stretches of rivers. Threatened due to pollution, intensive agriculture and water abstraction. Size reaches up to at least 9.5 cm SL (Ref. 59043).

发现于了有一个很大的小的海岸溪流在干的夏天缩小的水水流时期了.(参考文献 55625) 在干的夏天时间期间，鱼变成集中在植物的表面下面的暗的区域中寻找庇护所的一些水池。

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

欧洲: 葡萄牙。

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

Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)

世界自然保护联盟红皮书 (Ref. 130435)

  濒危 (EN) (B1ab(iii)+2ab(iii)); Date assessed: 01 January 2008

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00358 - 0.01465), b=3.14 (2.98 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.9   ±0.1 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).