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Ovalentaria/misc (Various families in series Ovalentaria) >
Embiotocidae (Surfperches)
Etymology: Hysterocarpus: Greek, hysteros = later + Greek,karpos = fruit (Ref. 45335).
Eponymy: John Boadman Trask (1824–1879) was a physician, amateur geologist, and founding member (1853) of the California Academy of Sciences, who was a friend of the author (who was also a founding member). [...] (Ref. 128868), visit book page.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة; مياه مخلوطة القاع. Temperate; 41°N - 36°N
North America: Clear Lake; Russian, Sacramento-San Joaquin, and Pajaro-Salinas River drainages in California, USA. Three subspecies were recognized: Hysterocarpus traskii lagunae in Clear Lake; Hysterocarpus traskii pomo in Russian River; and Hysterocarpus traskii traskii in rest of range.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 15.0 cm TL ذكر/ مختلط الجنس; (Ref. 86798); العمر: 5 سنين (Ref. 72464)
Adults inhabit mud- to gravel-bottomed pools and runs of small to large, low-elevation rivers and lakes. Usually occurs near emergent aquatic plants or overhanging banks. They rarely enter brackish water (Ref. 86798). Viviparous, female carries the developing young (Ref. 205). Migratory behaviour is undetermined (Ref. 126106).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Viviparous, female carries the developing young (Ref. 205).
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
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مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01950 (0.00850 - 0.04473), b=2.97 (2.77 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
المرونه (مرجع 120179) |
وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (tmax=5;). |
ضعف الصيد (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |