The large-scale loach Paramisgurnus dabryanus , introduced from continental Asia, coexists with the native dojo loach Misgurnus anguillicaudatus in Japan, likely causing genetic contamination of native populations through hybridization. Previous mitochondrial DNA (mtDNA) analyses have identified two divergent lineages of large-scale loach (groups 1 and 2), whereas nuclear DNA analysis of the RAG1 region revealed no differences...

Under global warming, impacts on animals’ spatial distribution in response to ocean warming have been anticipated for marine endotherms like cetaceans. Therefore, determining the distribution patterns of small cetaceans is key to understanding how their distributional patterns are susceptible to changing oceanic environments. To investigate the effect of environmental variations on distributional patterns of small cetaceans on...