Davenport, D., Butcher, P., Andreotti, S., Matthee, C., Jones, A., & Ovenden, J. (2020). IF 2,39
Although population size is a key indicator for conservation, it can be challenging to track abundance for marine species that are in danger. Many marine species continue to lack data, posing obstacles to modelling future solutions and evaluating conservation management outcomes despite significant investment in research. The white shark (Carcharodon carcharias), a highly migratory apex predator, has seen rapid and significant population losses in several populations that are dispersed across the globe. In order to give an overview of recent reproductive efforts in an east Australian-New Zealand population of white sharks, we here estimate the effective number of breeders that effectively contribute offspring in one reproductive cycle (Nb). Using two genetic estimators (linkage and genetic correlation), Nb was calculated for four successive age cohorts (2010, 2011, 2012, and 2013).