家系生態学：ゲノム情報から近年の生態情報を抽出して希少種保全に貢献する

秋田, 鉄也

doi:10.51094/jxiv.279

##article.authors##

秋田, 鉄也水産研究・教育機構　水産資源研究所　漁業情報解析部

DOI:

https://doi.org/10.51094/jxiv.279

キーワード:

個体数推定、近親標識再捕法、親子判別

抄録

本報告では、水産資源評価において成魚の個体数および生活史パラメータを推定するために近年開発された近親標識再捕法（CKMR法）について概説する。CKMR法は、大きな（小さな）集団では近親ペアは観測されにくい（やすい）ことを利用した標識再捕法の応用である。ここでは、親子ペアに基づくCKMR法の概要を説明する。まず、古典的な標識再捕法とのアナロジーを用いて、単純なモデルを説明したのちに、複雑なモデルが必要とされる条件を示す。次に、親子関係を使ってCKMR法を適用した文献をレビューする。最後に、本手法の有用性と不確実性について議論する。今後、半兄弟関係など他の近親関係が広く適用されることで、CKMR法のさらなる発展が期待されるだろう。

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