Analysis of sperm whale (Physeter macrocephalus ) calls from cabled underwater observatories

In the past decades, along with the fast development of industry and shipping, need to introduce the term noise pollution followed. Together with overfishing and overpopulation on the coast of the world sea, level of anthropogenic noise introduced into marine environment is reaching alarming proportions. Thus, being able to acoustically follow underwater life gives us an opportunity to estimate the impact of artificial noise to marine environment. Without invasive methodology, following in real-time activity and behavior of vocal marine mammals, but also many other groups of animals that have ability to express their behavior in any type of sound, can give us an insight of the current situation in the oceans, concerning noise pollution. Acoustical approach could be the leading method of research in future, because of many advantages in compare to few disadvantages that it is offering. In this paper, tree different methods of Sperm whale (Physeter macrocephalus) clicks detection were tested. Performances of two automated detectors (S-SONS Lido, developed for Listening to the Deep Ocean Environment project, and PAMGuard, open-source platform) were compared to manual method (performed by author D.DJ.). Results show the importance of specificity and sensitivity, when it comes to filtering the output of automated detection.

ISCED Categories

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0522 - Conservation and environmental management