New diagnostic descriptions and distribution information for Shepherd's beaked whale (Tasmacetus shepherdi) off Southern Australia and New Zealand (2008-2017)

A total of 13 vessel-based and five aerial sightings of Shepherds beaked whale were collated from sightings in the southern Australian and New Zealand regions from 2008 to 2017 (see cited publication) Eight of the 13 vessel-based sightings and all aerial sightings were collected during dedicated marine mammal surveys. The remaining sightings data were collected opportunistically by observers during field activities which included: dedicated pelagic bird surveys, fishing trips, and seismic surveys on a variety of vessels

本数据集于2008年至2017年间，从澳大利亚南部及新西兰海域的观测记录中整理得到13次船舶观测记录（vessel-based sightings）与5次航空观测记录（aerial sightings），观测对象为谢泼德喙鲸（Shepherds beaked whale），详见所引文献。13次船舶观测记录中的8次以及全部航空观测记录，均通过专项海洋哺乳动物调查获取。剩余的观测数据则由观测人员在各类野外作业期间偶遇采集，作业内容涵盖专项远洋海鸟调查、渔业航行及多类型船舶搭载的地震勘探作业。