Examples of restriction endonucleases that will cleave marine predator's DNA within the target 16S amplicon region but leave prey DNA intact for amplification and further analysis.

* & 1: Prey taxa analysed (number of species): *Ray-finned Fish (3306), Echinodermata (198), Mollusca (1288), Crustacea (1462). 1 Other Odontoceti (32), Phocidae (18), Otariidae (8), all from S2.

* 1：分析的猎物类群（物种数量）：辐鳍鱼（Ray-finned Fish，3306种）、棘皮动物门（Echinodermata，198种）、软体动物门（Mollusca，1288种）、甲壳动物（Crustacea，1462种）。其余类群包括其他齿鲸小目（Odontoceti，32种）、海豹科（Phocidae，18种）、海狮科（Otariidae，8种），所有类群均来自S2。