Results 1 to 10 of about 6,133 (210)

Long‐Term Sperm Storage in a Superfetatious Live‐Bearing Fish (Poeciliopsis gracilis, Poeciliidae) [PDF]

open access: yesEcology and Evolution
Sperm storage is a post‐copulatory strategy by which females can improve their fecundity by creating asynchrony between mating and fertilization. Sperm storage duration varies across vertebrate species, wherein longer sperm storage is thought to coincide
T. R. Ernst   +6 more
doaj   +3 more sources

Complete mitochondrial genome of a livebearing freshwater fish (Cyprinodontiformes: Poeciliidae): Poecilia parae [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2023
Members of the fish family Poeciliidae (livebearing ‘tooth-carps’) have historically been used as models in medical research, behavior ecology, and biological control.
Kayla M. Fast   +2 more
doaj   +2 more sources

The Morphogenesis of Sperm Storage Micropockets in the Western Mosquitofish (Gambusia affinis) [PDF]

open access: yesAnimals
Sperm storage within the female reproductive tract is widespread among animal species with internal fertilization, such as the fish family Poeciliidae, wherein the females possess a sperm storage micropocket (SSP) that can store sperm for up to a year ...
Tengfei Wu   +6 more
doaj   +2 more sources

Reproductive Mode and Conflict Shape the Evolution of Male Attributes and Rate of Speciation in the Fish Family Poeciliidae

open access: yesFrontiers in Ecology and Evolution, 2021
Sexual conflict is caused by differences between the sexes in how fitness is maximized. These differences are shaped by the discrepancy in the investment in gametes, how mates are chosen and how embryos and young are provided for.
David N Reznick, Andrew I Furness
exaly   +3 more sources

Light and electron microscopic morphology of the fertilized egg and fertilized egg envelope of Poropanchax normani, Poeciliidae, Teleostei [PDF]

open access: yesApplied Microscopy, 2022
We examined the morphology of the fertilized egg and the fine structure of fertilized egg envelopes of Poropanchax normani belonging to the family Poeciliidae, also known as Norman’s lampeye using light and electron microscopes.
Dong Heui Kim
doaj   +2 more sources

Heterochronic changes in gene expression underlie placental evolution in the fish family Poeciliidae [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences
Polly Campbell   +2 more
exaly   +2 more sources

Diurnal Changes in Hypoxia Shape Predator-Prey Interaction in a Bird-Fish System

open access: yesFrontiers in Ecology and Evolution, 2021
Animals often face changing environments, and behavioral flexibility allows them to rapidly and adaptively respond to abiotic factors that vary more or less regularly.
Juliane Lukas   +15 more
doaj   +1 more source

The complete mitochondrial genome of the Variable Platyfish Xiphophorus variatus

open access: yesMitochondrial DNA. Part B. Resources, 2021
We present the complete mitochondrial genome sequence of the Variable Platyfish, Xiphophorus variatus (Meek 1904) (Cyprinodontiformes: Poeciliidae). The genome consists of 16,624 bp which encodes 13 protein-coding genes, 22 transfer RNAs, 2 ribosomal ...
Anna Nicole Eastis   +2 more
doaj   +1 more source

Fish, Cubatão River basin, Atlantic Rainforest stream, Paraná, Brazil [PDF]

open access: yesCheck List, 2009
The freshwater ichthyofauna of the Cubatão River basin was studied. This drainage belongs to the Atlantic rainforestbiome in Paraná state coastal region, southern Brazil.
Bastos, L. P., Abilhoa, V.
doaj   +4 more sources

The Fish Family Poeciliidae as a Model to Study the Evolution and Diversification of Regenerative Capacity in Vertebrates

open access: yesFrontiers in Ecology and Evolution, 2021
The capacity of regenerating a new structure after losing an old one is a major challenge in the animal kingdom. Fish have emerged as an interesting model to study regeneration due to their high and diverse regenerative capacity.
Diego Safian   +3 more
doaj   +1 more source

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