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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Laviniinae
Etymology: Ptychocheilus: Greek, ptyx, ptychos = fold + Greek, cheilos = lip (Ref. 45335).
More on author: Ayres.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي; رود رو (Ref. 126106). Temperate; 39°N - 35°N
North America: Sacramento-San Joaquin, Pajaro-Salinas, Russian, and Clear Lake drainages in California, USA. Introduced elsewhere in California, including Eel River and tributaries to Morro Bay.
اندازه / وزن / سن
بلوغ: Lm ?  range ? - ? cm
Max length : 140 cm TL جنس نر / بدون خواص جنسي; (Ref. 5723); common length : 40.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 12193); بيشينه سن گزارش شده: 9 سال ها (Ref. 72486)
شعاع نرم باله مخرجي: 8. Dorsal fin usually with 8 rays; anal fin with 8 rays; 38-44 scales on back from head to dorsal fin; 65-78, usually 67-75, scales on lateral line; and 12-15 scales above lateral line (Ref. 86798).
Body shape (shape guide): elongated.
Adults inhabit rocky and sandy pools and runs of small to large rivers. Usually found in clear, warm streams (Ref. 5723). They are voracious pike-like habits. Small pikeminnows (less than or equal to 7 cm SL) are found in shallow water with cover and lower velocities. The microhabitat use of these juveniles is controlled by the presence of large pikeminnows which connotes intraspecific predation. The microhabitat shift is observed to be significantly influenced by the presence rather than the number of large pikeminnows in the area (Ref. 55069).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك; ماهي ها ي سرگرم كننده: بله; طعمه: usually
ابزارها
گزارش های ويژه
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منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
سطح تروفیک (مرجع 69278) |
2.0 ±0.2 se; based on size and trophs of closest relatives |
جهندگی (مرجع 120179) |
خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (Preliminary K or Fecundity.). |
آسیبپذیری ماهیگیری (Ref. 59153) |
Very high vulnerability (82 of 100). 🛈 |
طبقه قيمت (Ref. 80766) |
Unknown.
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