The broadnose sevengill shark ( Notorynchus cepedianus ) is a large marine predator found in temperate coastal marine habitats. Despite being commonly encountered, details of its ecology are limited. To partially address this, we quantified the size and sex structure of N. cepedianus in Paterson Inlet, Stewart Island, New Zealand. A stereo‐camera baited underwater video system (BRUV) was deployed in a shallow coastal embayment...