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Resource ID
10827
Access
Open
Full Title
Spatial risk assessment of threats to Hector's and Maui dolphins (Cephalorhynchus hectori). Fisheries New Zealand, 169pp. Available at: http://www.mpi.govt.nz/news-resources/publications.aspx.
Author
J.O. Roberts, D.N. Webber, K.T. Goetz, C.T.T. Edwards, W.D. Roe and I.J. Doonan
Abstract
A spatial risk assessment of threats was undertaken for Hector’s dolphins (Cephalorhynchus hectori) and their closely-related sub-species Māui dolphin (Cephalorhynchus hectori maui), to inform a revised Threat Management Plan (TMP) for the species. A Bayesian spatial risk model was developed using the spatially-explicit fisheries risk assessment (SEFRA) approach. Under this approach, encounters between animals and lethal threats such as fishing are estimated as a function of their overlap in space, and the probability of death per encounter is estimated from fisheries observer data or other observations of deaths.