New Research Shows Pretend Porpoise Sounds are Helping Conservation Efforts

Below is a press release about the Methods in Ecology and Evolution article ‘Estimating effective detection area of static passive acoustic data loggers from playback experiments with cetacean vocalisations‘ taken from Swansea University.

Harbour porpoise under the surface - I. Birks, SeaWatchFoundation

Harbour porpoise under the surface – I. Birks, SeaWatchFoundation

An examination into the detection of harbour porpoises is helping to give new understanding of effective monitoring of species under threat from anthropogenic activities such as fisheries bycatch and coastal pollution.

In a first study of its kind, Dr Hanna Nuuttila, currently at Swansea University’s College of Science – together with scientists from the German Oceanographic Museum, the University of St Andrews and Bangor University – revealed how playing back porpoise sounds to an acoustic logger can be used to assess the detection area of the device, a metric typically required for effective monitoring and conservation of protected species.

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New Tool to Assess Effects of Powerful Man-Made Underwater Sounds

Below is a press release about the Methods paper ‘An interim framework for assessing the population consequences of disturbance‘ taken from the University of St Andrews:

A team of scientists from the University of St Andrews has developed a new desktop tool for assessing the impact of noise from human disturbance, such as offshore wind development on marine mammal populations.

PCOD_PR_imageThe team, led by Prof. John Harwood, have developed the interim Population Consequences of Disturbance (PCoD) framework for assessing the consequences of human induced noise disturbance on animal populations. The study was published yesterday in the journal Methods in Ecology and Evolution.

Changes in natural patterns of animal behaviour and physiology resulting from animals being disturbed may alter the conservation status of a population if the activity affects the ability of individuals to survive, breed or grow. However, information to forecast population-level consequences of such changes is often lacking. The project team developed an interim framework to assess impacts when empirical information is sparse. Crucially, the model shows how daily effects of being disturbed, which are often straightforward to estimate, can be scaled to the duration of disturbance and to multiple sources of disturbance.

“We have developed a novel framework that can be used to broadly forecast the consequences of anthropogenic disturbance on animal populations, which in principal can be applied to a range of marine and terrestrial species and different types of disturbance.” – Dr Stephanie King

One important application for the interim PCoD framework is in the marine industry. Many industries use practices that involve the generation of underwater noise. These include shipping, oil and gas exploration, defence activities and port, harbour and renewable energy construction. Continue reading