Japanese eel Anguilla japonica do not assimilate nutrition during the oceanic spawning migration: Evidence from stable isotope analysis

Seinen Chow, Hiroaki Kurogi, Satoshi Katayama, Daisuke Ambe, Makoto Okazaki, Tomowo Watanabe, Tadafumi Ichikawa, Masashi Kodama, Jun Aoyama, Akira Shinoda, Shun Watanabe, Katsumi Tsukamoto, Sachie Miyazaki, Shingo Kimura, Yoshiaki Yamada, Kazuharu Nomura, Hideki Tanaka, Yukinori Kazeto, Kazuhiro Hata, Takeshi HandaAtsushi Tawa, Noritaka Mochioka

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

During 2008 and 2009, a total of 12 adult Japanese eels Anguilla japonica were captured in the southern part of the West Mariana Ridge, the presumed spawning area. We compared the stable carbon and nitrogen isotope ratios (δ13C and δ15N) between the 'Mariana silvers' (terminal phase) and those of yellow and silver eels caught in rivers, lakes and coastal areas of Japan (initial phase). Profiles of stable isotope signatures between the initial and terminal phases were similar; both characteristically had a wide range for δ13C (-24.9 to -12.0% and -20.5 to -11.3% for the initial and terminal phases, respectively) and δ15N (6.5 to 18.4% and 9.0 to 18.1, respectively). Mesopelagic fishes, including several other anguillid species caught near the West Mariana Ridge, characteristically had a very narrow range of δ13C (-16.9 to -15.3%) and a wide but lower range of δ15N (5.3 to 11.1%) than the Japanese eels. The very similar profiles in stable isotopic signatures between the initial and terminal phase eels, distinct from those of Mariana mesopelagic fishes, indicate that Japanese eels do not assimilate nutrition from the marine environment during long (ca. 6 mo) spawning migration and retain the initial isotopic values of where they ceased feeding.

Original languageEnglish
Pages (from-to)233-238
Number of pages6
JournalMarine Ecology Progress Series
Volume402
DOIs
Publication statusPublished - Mar 8 2010

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Anguilla japonica
eel
stable isotopes
nutrition
stable isotope
spawning
silver
Anguilla anguilla
fish
marine environment
nitrogen isotope
isotopes
carbon isotope
Japan
lakes
rivers
analysis
carbon
nitrogen
lake

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

Cite this

Japanese eel Anguilla japonica do not assimilate nutrition during the oceanic spawning migration : Evidence from stable isotope analysis. / Chow, Seinen; Kurogi, Hiroaki; Katayama, Satoshi; Ambe, Daisuke; Okazaki, Makoto; Watanabe, Tomowo; Ichikawa, Tadafumi; Kodama, Masashi; Aoyama, Jun; Shinoda, Akira; Watanabe, Shun; Tsukamoto, Katsumi; Miyazaki, Sachie; Kimura, Shingo; Yamada, Yoshiaki; Nomura, Kazuharu; Tanaka, Hideki; Kazeto, Yukinori; Hata, Kazuhiro; Handa, Takeshi; Tawa, Atsushi; Mochioka, Noritaka.

In: Marine Ecology Progress Series, Vol. 402, 08.03.2010, p. 233-238.

Research output: Contribution to journalArticle

Chow, S, Kurogi, H, Katayama, S, Ambe, D, Okazaki, M, Watanabe, T, Ichikawa, T, Kodama, M, Aoyama, J, Shinoda, A, Watanabe, S, Tsukamoto, K, Miyazaki, S, Kimura, S, Yamada, Y, Nomura, K, Tanaka, H, Kazeto, Y, Hata, K, Handa, T, Tawa, A & Mochioka, N 2010, 'Japanese eel Anguilla japonica do not assimilate nutrition during the oceanic spawning migration: Evidence from stable isotope analysis', Marine Ecology Progress Series, vol. 402, pp. 233-238. https://doi.org/10.3354/meps08448
Chow, Seinen ; Kurogi, Hiroaki ; Katayama, Satoshi ; Ambe, Daisuke ; Okazaki, Makoto ; Watanabe, Tomowo ; Ichikawa, Tadafumi ; Kodama, Masashi ; Aoyama, Jun ; Shinoda, Akira ; Watanabe, Shun ; Tsukamoto, Katsumi ; Miyazaki, Sachie ; Kimura, Shingo ; Yamada, Yoshiaki ; Nomura, Kazuharu ; Tanaka, Hideki ; Kazeto, Yukinori ; Hata, Kazuhiro ; Handa, Takeshi ; Tawa, Atsushi ; Mochioka, Noritaka. / Japanese eel Anguilla japonica do not assimilate nutrition during the oceanic spawning migration : Evidence from stable isotope analysis. In: Marine Ecology Progress Series. 2010 ; Vol. 402. pp. 233-238.
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AU - Chow, Seinen

AU - Kurogi, Hiroaki

AU - Katayama, Satoshi

AU - Ambe, Daisuke

AU - Okazaki, Makoto

AU - Watanabe, Tomowo

AU - Ichikawa, Tadafumi

AU - Kodama, Masashi

AU - Aoyama, Jun

AU - Shinoda, Akira

AU - Watanabe, Shun

AU - Tsukamoto, Katsumi

AU - Miyazaki, Sachie

AU - Kimura, Shingo

AU - Yamada, Yoshiaki

AU - Nomura, Kazuharu

AU - Tanaka, Hideki

AU - Kazeto, Yukinori

AU - Hata, Kazuhiro

AU - Handa, Takeshi

AU - Tawa, Atsushi

AU - Mochioka, Noritaka

PY - 2010/3/8

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N2 - During 2008 and 2009, a total of 12 adult Japanese eels Anguilla japonica were captured in the southern part of the West Mariana Ridge, the presumed spawning area. We compared the stable carbon and nitrogen isotope ratios (δ13C and δ15N) between the 'Mariana silvers' (terminal phase) and those of yellow and silver eels caught in rivers, lakes and coastal areas of Japan (initial phase). Profiles of stable isotope signatures between the initial and terminal phases were similar; both characteristically had a wide range for δ13C (-24.9 to -12.0% and -20.5 to -11.3% for the initial and terminal phases, respectively) and δ15N (6.5 to 18.4% and 9.0 to 18.1, respectively). Mesopelagic fishes, including several other anguillid species caught near the West Mariana Ridge, characteristically had a very narrow range of δ13C (-16.9 to -15.3%) and a wide but lower range of δ15N (5.3 to 11.1%) than the Japanese eels. The very similar profiles in stable isotopic signatures between the initial and terminal phase eels, distinct from those of Mariana mesopelagic fishes, indicate that Japanese eels do not assimilate nutrition from the marine environment during long (ca. 6 mo) spawning migration and retain the initial isotopic values of where they ceased feeding.

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