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 +5 more sources
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
doaj +12 more sources
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 +4 more sources
Morphometric Response of Galaxias maculatus (Jenyns) to Lake Colonization in Chile [PDF]
Diversity, 2020 Body and head shape in fish responds to environmental factors such as water flow rate, food sources, and niche availability. However, the way in which fish respond to these environmental factors varies.
Margaret Mercer +4 more
doaj +3 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 +7 more sources
Latin American Journal of Aquatic Research, 2008 The nuclear DNA content (2C value) was determined in the commercial fish Galaxias maculatus (Galaxiidae) was determined by microdensitometry of erythrocyte nuclei after Feulgen staining; rainbow trout erythrocytes with a known 2C value were used as a ...
Pedro Jara-Seguel +3 more
doaj +3 more sources
Phylogeography in Galaxias maculatus (Jenyns, 1848) along Two Biogeographical Provinces in the Chilean Coast. [PDF]
PLoS ONE, 2015 Major geologic and climatic changes during the Quaternary exerted a major role in shaping past and contemporary distribution of genetic diversity and structure of aquatic organisms in southern South America.
Claudio A González-Wevar +7 more
doaj +8 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
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
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