著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Diallo Samba T. and Sane Aboubacar and Nelson Thomas and Katsumata Taiki and Hakamada Takashi,"CETACEANS OFF GABON BASED ON A 2011 SIGHTING SURVEY, WITH A PRELIMINARY DENSITY ESTIMATE OF THE HUMPBACK WHALE MEGAPTERA NOVAEANGLIAE",鯨類資源研究,24345571,鯨類資源研究刊行会,2021-12-28,3,0,258-264,https://cir.nii.ac.jp/crid/1390854064992078208,https://doi.org/10.34331/cpops.2020s009