@techreport{oai:mie-u.repo.nii.ac.jp:00015316,
 author = {淀, 太我 and Yodo, Taiga},
 month = {May},
 note = {application/pdf, 流水環境での生態系被害が懸念されているにもかかわらず，生態的知見に乏しかった特定外来生物コクチバスの河川における生態を把握し，有効な駆除方法を開発することを目的とした。調査は本種の侵入後間もない三重県雲出川で行い，（1）環境DNAを使って侵入範囲の全体像を把握した。（2）胃内容物分析と安定同位対比分析から，成長に伴い水生昆虫から魚類へと食性を変化させ，アユへの依存度も高いことを明らかとした。（3）侵入地点の餌魚の食性を未侵入地点と比較し，直接的な捕食以外に餌の競合や捕食回避行動による間接的影響も受けていることを明らかとした。, The objective of this study was to understand the ecology of smallmouth bass in rivers, for which ecological knowledge is lacking despite concerns about serious damage in river environments, and to develop an effective control method. The study was conducted in the Kumozu River in Mie Prefecture, where the species had just invaded, and the following results were obtained: (1) Environmental DNA was used to determine the overall extent of the invasion. (2) Stomach contents analysis and stable isotope analysis revealed that the diet of the bass changes from aquatic insects to fishes with growth, and that it is highly dependent on ayu.(3) The feeding habits of prey fish at the invaded site were compared with those at the uninvaded site, and it was found that, in addition to direct predation, the fishes were indirectly damaged by food competition and predator avoidance behavior., 2018年度～2020年度科学研究費補助金(基盤研究(C))研究成果報告書, 18K05783},
 title = {特定外来生物コクチバスの本邦河川における影響評価と駆除技術の開発},
 year = {2021},
 yomi = {ヨド, タイガ}
}