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  1. No Access

    Article

    Coastal water temperature difference, a potential predictor of glass eel recruitment in Anguilla japonica during non-meander periods of the Kuroshio

    Predictability of glass eel recruitment of Japanese eel (Anguilla japonica) was examined with a simple indicator constructed using coastal water temperature under the influence of the western boundary current, th...

    Yoichi Miyake, Marie-Agnès Tellier, Aigo Takeshige in Journal of Oceanography (2023)

  2. No Access

    Chapter

    Behavior

    In contrast to the large-scale oceanic migration between spawning grounds in the open ocean and continental habitats, eels exhibit sedentary behavior in rivers, lakes, and estuaries, where they spend a large p...

    Hikaru Itakura in Eel Science (2023)

  3. No Access

    Article

    Environmental influences on late-summer individual Japanese eel diel activity and space utilization patterns in a shallow western Japan brackish lake

    The late-summer diel activity patterns and space utilization of five Japanese eels, Anguilla japonica, were investigated using an acoustic telemetry positioning system in a shallow brackish lake in western Japan....

    Hikaru Itakura, Yoichi Miyake, Ryoshiro Wakiya, Shingo Kimura in Fisheries Science (2022)

  4. No Access

    Article

    Past and lost influence of the Kuroshio on estuarine recruitment of Anguilla japonica glass eels

    The present study aims to reveal the influence of path fluctuations of the western boundary current (Kuroshio) and other regional environmental factors on coastal recruitment of transported organisms. As a mod...

    Yoichi Miyake, Marie-Agnès Tellier, Aigo Takeshige in Journal of Oceanography (2020)

  5. Article

    Open Access

    Anguillid eels as a surrogate species for conservation of freshwater biodiversity in Japan

    To monitor and manage biodiversity, surrogate species (i.e., indicator, umbrella and flagship species) have been proposed where conservation resources are focused on a limited number of focal organisms. Using ...

    Hikaru Itakura, Ryoshiro Wakiya, Matthew Gollock, Kenzo Kaifu in Scientific Reports (2020)

  6. No Access

    Article

    Anthropogenic impacts on the distribution of wild and cultured Japanese eels in the Tone River watershed, Japan, from otolith oxygen and carbon stable isotopic composition

    Effective management decisions are vital for the declining Japanese eel Anguilla japonica. Elucidating the distribution range of wild eels (i.e., naturally recruited individuals) represents the first step in reso...

    Kohma Arai, Hikaru Itakura, Akihito Yoneta, Kenzo Kaifu in Environmental Biology of Fishes (2019)

  7. No Access

    Article

    Multiple habitat use of Japanese sea bass Lateolabrax japonicus in the estuary region of the Tone River system, implied by stable isotope analysis

    Japanese sea bass Lateolabrax japonicus is a euryhaline fish species. The present study aimed to elucidate their habitat use in the estuary region of the Tone River system in Japan through stable isotope analysis...

    Yoichi Miyake, Hikaru Itakura, Aigo Takeshige, Hiroaki Onda in Ichthyological Research (2019)

  8. Article

    Correction to: Predation on glass eels of Japanese eel Anguilla japonica in the Tone River Estuary, Japan

    In the original publication fig.1 is incorrectly published.

    Yoichi Miyake, Aigo Takeshige, Hikaru Itakura, Hajime Itoh in Fisheries Science (2018)

  9. No Access

    Article

    Predation on glass eels of Japanese eel Anguilla japonica in the Tone River Estuary, Japan

    Aquaculture of Japanese eel Anguilla japonica relies upon the natural recruitment of their glass eels (juveniles); however, predation that could influence glass eel recruitment remains unknown. In the present stu...

    Yoichi Miyake, Aigo Takeshige, Hikaru Itakura, Hajime Itoh in Fisheries Science (2018)

  10. No Access

    Article

    Depletion of naturally recruited wild Japanese eels in Okayama, Japan, revealed by otolith stable isotope ratios and abundance indices

    To investigate the population dynamics of naturally recruited wild Japanese eels, fisheries data of wild individuals in Okayama Prefecture were investigated as a case study. Wild and stocked eels were discrimi...

    Kenzo Kaifu, Kazuki Yokouchi, Tomihiko Higuchi, Hikaru Itakura in Fisheries Science (2018)

  11. No Access

    Article

    Discovering the dominance of the non-native European eel in the upper reaches of the Tone River system, Japan

    To investigate the presence of non-native anguillid eels in Japanese waters, 141 eels were collected from seven sampling sites throughout the Tone River system. Genetic species identification showed an extraor...

    Kohma Arai, Hikaru Itakura, Akihito Yoneta, Tatsuki Yoshinaga in Fisheries Science (2017)

  12. No Access

    Article

    Feeding, condition, and abundance of Japanese eels from natural and revetment habitats in the Tone River, Japan

    The rivers and lakes of Japan have had a wide range of shoreline modifications for flood control and stabilization, but the effects of this on the ecology of Japanese eels, Anguilla japonica, is not known. To cla...

    Hikaru Itakura, Tsubasa Kaino, Yoichi Miyake in Environmental Biology of Fishes (2015)

  13. No Access

    Article

    Declines in catches of Japanese eels in rivers and lakes across Japan: Have river and lake modifications reduced fishery catches?

    Catches and recruitment of the Japanese eel, Anguilla japonica, have declined for unknown reasons in recent decades, so examination of possible factors contributing to the declines is needed for resource manageme...

    Hikaru Itakura, Takashi Kitagawa, Michael J. Miller in Landscape and Ecological Engineering (2015)

  14. No Access

    Article

    Genetic identification and morphology of naturally spawned eggs of the Japanese eel Anguilla japonica collected in the western North Pacific

    Eggs of the Japanese eel Anguilla japonica collected in the western North Pacific were identified by onboard species-specific polymerase chain reaction (PCR) and DNA nucleotide sequencing after the cruise. Fish e...

    Tatsuki Yoshinaga, Michael J. Miller, Kazuki Yokouchi, Tsuguo Otake in Fisheries Science (2011)