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) SOUTHWARD AJ,Forty years of changes in species composition and population density of barnacles on a rocky shore near Plymouth,J Mar Biol Ass UK,,,1991,47,,81-95,https://cir.nii.ac.jp/crid/1574231874920364544,