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  1. No Access

    Article

    Disruption of SMC-related genes promotes recombinant cholesterol esterase production in Burkholderia stabilis

    Burkholderia stabilis strain FERMP-21014 secretes cholesterol esterase (BsChe), which is used in clinical settings to determine serum cholesterol levels. Previously, we constructed an expression plasmid with an e...

    Kenji Konishi, Yoshiaki Yasutake, Shuji Muramatsu… in Applied Microbiology and Biotechnology (2022)

  2. Article

    Open Access

    Estimation of the feeding record of pregnant Antarctic minke whales (Balaenoptera bonaerensis) using carbon and nitrogen stable isotope analysis of baleen plates

    Antarctic minke whales (Balaenoptera bonaerensis) are migratory capital breeders that experience intensive summer feeding on Antarctic krill (Euphausia superba) in the Southern Ocean and winter breeding at lower ...

    Mayuka Uchida, Ippei Suzuki, Keizo Ito, Mayumi Ishizuka, Yoshinori Ikenaka… in Polar Biology (2021)

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  3. Article

    Open Access

    Decline in body condition in the Antarctic minke whale (Balaenoptera bonaerensis) in the Southern Ocean during the 1990s

    Changes in the body condition of Antarctic minke whales (Balaenoptera bonaerensis) have been investigated in a number of studies, but remain contested. Here we provide a new analysis of body condition measurement...

    Céline Cunen, Lars Walløe, Kenji Konishi, Nils Lid Hjort in Polar Biology (2021)

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  4. No Access

    Article

    Antarctic minke whales find ice gaps along the ice edge in foraging grounds of the Indo-Pacific sector (60° E and 140° E) of the Southern Ocean

    Antarctic minke whales Balaenoptera bonaerensis are rorquals that migrate to Antarctic waters to forage during the austral summer. Because the species frequents the edges of ice packs in summer, the potential imp...

    Kenji Konishi, Tatsuya Isoda, Takeharu Bando, Shingo Minamikawa… in Polar Biology (2020)

  5. No Access

    Article

    Decrease in stomach contents in the Antarctic minke whale (Balaenoptera bonaerensis) in the Southern Ocean

    The Antarctic minke whale (Balaenoptera bonaerensis) is one of the major krill predators in Antarctic waters. A reported decline in energy storage over almost two decades indicates that food availability for the ...

    Kenji Konishi, Takashi Hakamada, Hiroshi Kiwada, Toshihide Kitakado… in Polar Biology (2014)

  6. No Access

    Article

    Decline in energy storage in the Antarctic minke whale (Balaenoptera bonaerensis) in the Southern Ocean

    The annual trend in energy storage in the Antarctic minke whale was examined using catch data from all 18 survey years in the Japanese Whale Research Program (JARPA). Regression analyses clearly showed that bl...

    Kenji Konishi, Tsutomu Tamura, Ryoko Zenitani, Takeharu Bando… in Polar Biology (2008)