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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Goodeidae (Splitfins) > Goodeinae
Etymology: Xenotoca: Greek, xenos = strange + Greek, tokos, oy = birth (Ref. 45335).
Eponymy: Dr Gustav Eisen (1847–1940) was a Swedish-born American polymath with a particular interest in marine invertebrates and earthworms (a genus of the latter, Eisenia, being named after him). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة القاع; pH range: 6.0 - 8.0; dH range: 9 - 19. Temperate; 15°C - 32°C (Ref. 2060)
Central America: Mexico.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 6.0 cm TL ذكر/ مختلط الجنس; (Ref. 2060); 7.0 cm TL (female)
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Females can get young every 60 days.
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
IUCN Red List Status (Ref. 130435: Version 2025-1)
في خطر (EN) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 14 March 2018
استخدامات بشرية
مصائد: تجاري; حوض مائي: تجاري
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 2.0 ±0.1 se; based on size and trophs of closest relatives
المرونه (مرجع
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec=10).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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