Development of a Trait-Based Risk Assessment to Minimise the Impacts of Trout on New Zealand Native Fishes. [PDF]
Ecol EvolA trait‐based risk assessment framework was developed to identify New Zealand's native freshwater fish most vulnerable to the pressures of valued sports fisheries (trout). We further examine where the distributions between at‐risk species and trout are likely to overlap, providing priority locations for conservation managers to investigate further and ...
Coughlan A, Canning AD, Death RG.
europepmc +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
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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
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Invasive predatory fish occupies highest trophic position leading to expansion of isotopic niches in a riverine food web. [PDF]
EcologyAbstract Invasive species are drivers of ecological change with the potential to reshape the structure and function of terrestrial and aquatic ecosystems. The invasive flathead catfish (Pylodictis olivaris) is an opportunistic predator that has established a rapidly growing population in the Susquehanna River, Pennsylvania, USA, since they were first ...
Hodgson OC +5 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
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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
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Policy decisions matter: Cessation of logging benefits 34 threatened species in Victoria, Australia. [PDF]
PLoS ONEIn January 2024, the Australian state of Victoria committed to ending native forest logging six years ahead of schedule, a decision that has been advocated for by scientists and conservationists for decades.
Kita R Ashman +12 more
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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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Interactive Effects of Copper Contamination and Salinization Across Multiple Genotypes of <i>Daphnia magna</i>. [PDF]
Ecol EvolThis study examined how Daphnia magna genotypes from US and French populations respond to copper and salinity stress, alone and in combination. US genotypes were generally more sensitive but showed improved survival under combined stress, indicating possible cross‐tolerance mechanisms.
Hernandez Villatoro AM +4 more
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Como se formaram as galáxias? [PDF]
Revista Brasileira de Ensino de Física, 2023 Apresentamos aqui uma discussão pedagógica do processo de formação de estruturas (galáxias e além) no Universo, com um mínimo de formalismo e ênfase nas ideias físicas que colocam a instabilidade gravitacional como o principal agente do mesmo.
J.E. Horvath
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