Capture records of abyssal megafauna captured using submersibles and ROVs at Station ALOHA off Hawaii and Station M off California from 2019 to 2020

This dataset includes the capture records for the abyssal megafauna captured as part of this food web project. Megafauna were captured using submersibles and ROVs at Station ALOHA off Hawaii and Station M off California from 2019 to 2020. These animals were captured as representatives of their abyssal food webs for an isotopic investigation of their original particulate nutritional sources (different sized particles). Each organism was identified, measured, most weighed using a motion compensated scale, and frozen for later drying and isotope analysis. For larger organisms such as holothurians or fishes, samples of tissues were taken and often the whole animal was preserved for later confirmation of taxonomic identification.本数据集涵盖了本食物网研究项目中捕获的深渊巨型生物（abyssal megafauna）的捕获记录。2019年至2020年，研究人员借助载人潜水器与遥控无人潜水器（ROVs），分别在夏威夷外海的阿洛哈站（Station ALOHA）以及加利福尼亚外海的M站（Station M）开展了此类生物的捕获工作。本次捕获的生物作为其所属深渊食物网的代表样本，用于探究其原始颗粒营养源（不同粒径颗粒）的同位素特征。每只受试生物均完成物种鉴定、形态测量，多数个体还通过运动补偿秤（motion compensated scale）进行了体重测定，随后被冷冻保存，以供后续干燥处理与同位素分析使用。对于海参类（holothurians）或鱼类等大型生物，研究人员会采集其组织样本，且通常会将完整个体留存，用于后续的分类学鉴定复核。