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Airborne environmental DNA (airborne eDNA) analysis leverages the globally ubiquitous medium of air to deliver broad species distribution data and support ecosystem monitoring across diverse environments. As this emerging technology matures…
Blue whale populations each produce distinctive repeated songs that are stable over periods of decades, and can be used to identify where each population resides and moves. In the Southern Hemisphere and northern Indian Ocean, there are at least seven distinct populations based on their songs…
Marine bioacoustics research in Australian waters has developed for more than 30 years, and has revealed a wide diversity of … sounds and acoustic environments. The number of researchers and the complexity of the experiments has increased over the years.
The method traditionally used to estimate pack-ice seal abundance employs sighting surveys from ships or aircraft to … estimate the number of seals hauled out on the ice, combined with studies of haul-out behaviour to estimate the proportion … of time spent on the ice.
The leopard seal is a top-order predator in … the Southern Ocean ecosystem and preys on a wide … variety of vertebrate species including seals and penguins. We assessed the use of hairs found in leopard … seal scats to identify the species of pinniped consumed.
This study investigated the feasibility and validity of using non-invasively … collected ice urine samples to measure cortisol concentrations in Weddell seals. Radio-immunoassays were used to determine urinary cortisol, and spectrophotometric … assay was used to determine creatinine concentrations.