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Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Paraschistura: Generic name taken from its similarity with the genus Schistura; pasatigris: Named for Pasatigris, the ancient name of the Karun River where the type material was collected. Pas in Sanskrit means to 'touch' or to be 'bound to'. This refers to the fact that the Karun is an independent drainage but closely bound to the Tigris. A noun in apposition.
Taxonomic Remarks
This species is synonym of Paraschistura ilamensis Vatandoust and Eagderi, 2015 according to Jouladeh-Roudbar et al. (2015: Ref. 106319:888). To be confirmed.
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. Subtropical
Asia: Bala River (Balarud) and the Cholvar River, two tributaries of the Dez in the Karun
drainage and from the Siah Gav in the Karkheh drainage in Iran.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 4.5 cm SL オス/雌雄の選別がない; (Ref. 103390)
簡単な記述
検索表 | 形態学 | 形態計測学
Paraschistura pasatigris can be diagnosed from its congeners in Iran by a combination of the following non-unique characters: a suborbital flap present in males (vs. absent in P. aredvii and a suborbital groove in P. nielseni); more slender caudal peduncle (caudal peduncle depth 1.6-1.8 times longer than deep vs. 1.1-1.4 in P. nielseni); back and flank in front of the dorsal-fin origin fully covered by scales (vs. absence of scales on the back and on the flank in front of the dorsal-fin origin in P. abdolii and P. cristata; and scales completely absent in P. kessleri and P. turcmenica); absence of a long dorsal adipose crest (vs. presence in P. cristata); pelvic-fin origin behind a vertical through the dorsal-fin origin (vs. below or slightly in front in P. naumanni). It is distinguished from P. bampurensis and P. hormuzensis by having a pointed suborbital flap in males overlapping the slit below the lachrymal bone (vs. triangular, not overlapping the slit) and a blunt snout (vs. pointed). It differs also from P. abdolii, P. cristata, P. kessleri, P. naumanni and P. turcmenica by the presence of a suborbital flap in males (vs. absence) (Ref. 103390).
Body shape (shape guide): elongated.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Freyhof, J., G. Sayyadzadeh, H.R. Esmaeili and M. Geiger, 2015. Review of the genus Paraschistura from Iran with description of six new species (Teleostei: Nemacheilidae). Ichthyol. Explor. Freshwat. 26(1):1-48. (Ref. 103390)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
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モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00318 - 0.01197), b=2.91 (2.75 - 3.07), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 2.8 ±0.3 se; based on size and trophs of closest relatives
回復力 (参照
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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