David Harasti

Larger and more abundant legal-sized targeted fish inside ‘no take’ areas of a subtropical marine park over a 12-year period

Context Multiple-use marine parks vary spatially in how they are managed, which may influence ecological response over time. Aims We surveyed four key targeted species (snapper, Chrysophrys auratus; pearl perch, Glaucosoma scapulare; venus tuskfish, Choerodon venustus; grey morwo...

Search for sociality in white sharks: investigation of the co-occurrence of juvenile white sharks (Carcharodon carcharias) using passive acoustic telemetry data

Context Social network analysis (SNA) as a quantitative measure of animal grouping and social behaviours has been increasingly used to study the group dynamics and potential sociality of elasmobranch species. Aims Despite their mainly solitary swimming and hunting behaviours, whi...

Two major floods affect fish, invertebrates and marine habitats within a temperate estuary

Context Severe flooding can cause physiological stress and mortality for marine organisms within estuaries through reduced salinity, increased turbidity and sedimentation, and the delivery of nutrients, organic matter and contaminants. Aims The Port Stephens estuary in Australia...