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Review

14 Citations

9,301 Views

14 Pages

Structures Associated with Oogenesis and Embryonic Development during Intraovarian Gestation in Viviparous Teleosts (Poeciliidae)

Mari Carmen Uribe,
Gabino De la Rosa Cruz,
Adriana García Alarcón,
Juan Carlos Campuzano Caballero and
María Guadalupe Guzmán Bárcenas

Fishes2019, 4(2), 35;https://doi.org/10.3390/fishes4020035

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19 June 2019

Viviparity in teleosts involves, invariably, the ovary in a gestational role. This type of viviparity is due to the combination of unique aspects, different from those found in the rest of vertebrates. These aspects are: The ovary has a saccular stru...

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Review

11 Citations

3,429 Views

15 Pages

Distinguishing Between Embryonic Provisioning Strategies in Teleost Fishes Using a Threshold Value for Parentotrophy

Zoe M. G. Skalkos,
James U. Van Dyke and
Camilla M. Whittington

Biomolecules2023, 13(1), 166;https://doi.org/10.3390/biom13010166

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13 January 2023

The source of embryonic nutrition for development varies across teleost fishes. A parentotrophy index (ratio of neonate: ovulated egg dry mass) is often used to determine provisioning strategy, but the methodologies used vary across studies. The vari...

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Article

613 Views

12 Pages

Nutrition During Gestation in 2 Species of Viviparous Fishes (Poeciliidae): Poecilia latipinna (Lecithotrophic) and Heterandria formosa (Matrotrophic)

Mari Carmen Uribe,
Adriana García Alarcón,
Gabino De la Rosa Cruz and
Juan Carlos Campuzano Caballero

Fishes2026, 11(1), 3;https://doi.org/10.3390/fishes11010003

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19 December 2025

In viviparous teleosts, the lack of oviducts defines intraovarian gestation, with the ovary being the site for oogenesis but also the site for insemination, fertilization, and gestation. Consequently, intraovarian gestation is a complex and exception...

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