Isolation Driven Divergence in Osmoregulation in Galaxias maculatus (Jenyns, 1848) (Actinopterygii: Osmeriformes). [PDF]
PLoS ONE, 2016 BACKGROUND:Marine species have colonized extreme environments during evolution such as freshwater habitats. The amphidromous teleost fish, Galaxias maculatus is found mainly migrating between estuaries and rivers, but some landlocked populations have ...
Ignacio Ruiz-Jarabo +6 more
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The Reproductive Biology of Puye (Galaxias maculatus) under Experimental Culture [PDF]
AnimalsThis study determines the reproductive patterns of puye (Galaxias maculatus) under culture conditions. A population of 567 wild fish was caught in the Cautín River, Chile, and held in captivity for four years.
Leydy Sandoval-Vargas +4 more
doaj +6 more sources
Surviving historical Patagonian landscapes and climate: molecular insights from
BMC Evolutionary Biology, 2010 Background The dynamic geological and climatic histories of temperate South America have played important roles in shaping the contemporary distributions and genetic diversity of endemic freshwater species.
Carrea Cecilia +4 more
doaj +9 more sources
Pathology associated with larval Eustrongylides sp. (Nematoda: Dioctophymatoidea) infection in Galaxias maculatus (Actinopterygii: Galaxiidae) from Patagonia, Argentina [PDF]
International Journal for Parasitology: Parasites and Wildlife, 2019 Helminth infections within tissues tend to be subjected to a host response that can include encapsulation and melanization to isolate the parasite. The effectiveness of this response depends on the host species. During a survey of parasites of the native
Silvia Guagliardo +2 more
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Effects of the cranial parasite Tylodelphys sp. on the behavior and physiology of puye Galaxias maculatus (Jenyns, 1842) [PDF]
PeerJ, 2021 Diplostomatid digeneans are well-known manipulators of the behavior of their intermediate hosts. Unencysted metacercariae of Tylodelphys sp. inhabit the cranial cavity of the fish Galaxias maculatus; however, to date they have not been documented to ...
Ruby López-Rodríguez +2 more
doaj +3 more sources
Contrasting Patterns of Genetic Diversity and Divergence Between Landlocked and Migratory Populations of Fish Galaxias maculatus, Evaluated Through Mitochondrial DNA Sequencing and Nuclear DNA Microsatellites [PDF]
Frontiers in Genetics, 2022 Galaxias species are interesting biogeographic models due to their distribution and different types of life cycles, with migratory and landlocked populations.
Marcela P. Astorga +11 more
doaj +2 more sources
Contrasting evolutionary responses in two co-distributed species of Galaxias (Pisces, Galaxiidae) in a river from the glaciated range in Southern Chile [PDF]
Royal Society Open Science, 2020 Life-history traits are among the most important factors affecting population abundance and genetic diversity of species. Here, we analysed the genetic patterns of two Galaxias species with different life-history traits to investigate how these ...
P. F. Victoriano +7 more
doaj +2 more sources
Effect of protein and lipids levels in a growth diet on adult whitebait Galaxias maculatus (Jenyns 1842) [PDF]
Brazilian Journal of Biology, 2021 Galaxias maculatus aquaculture objectives is to produce millions of eggs. Wild females are small (2 g), have quick sexual maturity and low mean fecundity (500 eggs/female), requiring larger fishes with higher fecundity.
R. Vega-Aguayo +7 more
doaj +2 more sources
Unpacking the complexity of longitudinal movement and recruitment patterns of facultative amphidromous fish [PDF]
Scientific Reports, 2022 Longitudinal movement plays fundamental role in habitat colonization and population establishment of many riverine fish species. Movement patterns of amphidromous fish species at fine-scales that would allow characterizing the direction of movement and ...
Rodrigo Ramírez-Álvarez +5 more
doaj +2 more sources
Cryptic diversity within two widespread diadromous freshwater fishes (Teleostei: Galaxiidae) [PDF]
Ecology and EvolutionIdentification of taxonomically cryptic species is essential for the effective conservation of biodiversity. Freshwater‐limited organisms tend to be genetically isolated by drainage boundaries, and thus may be expected to show substantial cryptic ...
Charlotte Jense +8 more
doaj +2 more sources