分類 / 名前
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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Leuciscinae
Etymology: Pseudochondrostoma: Name refers to its morphological similarity with the genus Chondrostoma as a consequence of homoplasy in multiple traits.
More on author: Steindachner.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の漂泳性; potamodromous (Ref. 138297). Temperate; 41°N - 36°N, 10°W - 2°W
Europe: Tagus drainage in Spain and Portugal; Vouga, Modego, Algoa and Sado drainages in Portugal. Introduced in Jucar and Segura drainages in Spain.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 9.0  range ? - ? cm
Max length : 40.0 cm SL オス/雌雄の選別がない; (Ref. 59043)
Diagnosed from its congeners by having the following characters: lower jaw edge straight; 61-75 + 3-4 scales on lateral line; anal fin usually with 9½ branched rays; 22-31 gill rakers; usually 6-5 pharyngeal teeth; and caudal peduncle depth 1.8-2.2 times in its length (Ref. 59043).
Adults inhabit middle stretches of rivers in areas with current. They can survive in reservoirs. They occur in groups, especially during pre-reproduction migration (Ref. 59043). Also found in lakes (Ref. 26100). Food consists of vegetal matter, small invertebrates and detritus (Ref. 59043). Spawning occurs in spring in shallow water, on gravel and sometimes on timber pilings in the river. Threatened due to the introduction of other species (Ref. 26100).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
脆弱 (VU) (A2ace); Date assessed: 07 December 2023
人間の用途
水産業: 食糧水産; ゲームフィッシュ: はい
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00502 - 0.01379), b=3.12 (2.98 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
栄養段階 (参照 69278) |
2.5 ±0.24 se; based on food items. |
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Generation time |
6.1 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
回復力 (参照 120179) |
手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.18; tm=2; tmax=7). |
漁業の脆弱性 (Ref. 59153) |
Moderate to high vulnerability (49 of 100). 🛈 |
価格帯 (Ref. 80766) |
Unknown.
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