Faunal structure of Japanese freshwater fishes and its artificial disturbance

The hierarchical structure of areas of endemicity of freshwater fishes in the Japanese Archipelago was analyzed using parsimony analysis of endemicity (PAE) and its modification. Supporting the results of previous studies, the present analysis, which includes species, subspecies, intraspecific monop...

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Bibliographic Details
Published in:Environmental biology of fishes 2012-07, Vol.94 (3), p.533-547
Main Author: Watanabe, Katsutoshi
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal populations
Animal Systematics/Taxonomy/Biogeography
Animal, plant and microbial ecology
Animals
Archipelagoes
Autoecology
Biogeography
Biological and medical sciences
Biomedical and Life Sciences
Environment
Evolutionary biology
Fish
Freshwater
Freshwater & Marine Ecology
Freshwater fish
Fundamental and applied biological sciences. Psychology
Homogenization
Human influences
Introduced species
Lakes
Life Sciences
Nature Conservation
Pisces
Vertebrata
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Zoology
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Summary:The hierarchical structure of areas of endemicity of freshwater fishes in the Japanese Archipelago was analyzed using parsimony analysis of endemicity (PAE) and its modification. Supporting the results of previous studies, the present analysis, which includes species, subspecies, intraspecific monophyletic lineages, and/or hypothetical ancestors, revealed the uniqueness of the local ichthyofauna in northeastern Hokkaido, large changes in ichthyofauna across the Fossa Magna region, central Honshu, and some additional new patterns. A split network analysis was used to represent the complex relationships among local faunas in the archipelago and also in East Asian regions. Artificially disturbed fish faunas have recently lost part of their original endemic areas, producing a remarkable “homogenization” among local faunas (+9.0% in Jaccard’s similarity coefficient). The majority of this homogenization can be explained by introduction of domestic species (+8.6%), especially from Lake Biwa, the largest lake in Japan.
ISSN:0378-1909
1573-5133
DOI:10.1007/s10641-010-9601-5