Reducing vessel noise increases foraging in endangered killer whales

Open Access Research Article 2021

Marine Pollution Bulletin

Williams, R., Ashe, E., Yruretagoyena, L., Mastick, N., Siple, M., Wood, J., Joy, R., Langrock, R., Mews, S., Finne, E.
Observations of southern resident killer whales (SRKW) collected from San Juan Island. Analyses found linear relationship between received noise level and behavioural responses, notably foraging activity. Results suggest reducing ship speed, and therefore ship noise amplitude will help decrease the probability of ship noise disrupting SRKW foraging activity and may help to increase the proportion of accessible salmon.
Keywords: Foraging behaviour, Linear relationship, San Juan Island, Ship speed, Shipping noise, Southern resident killer whales

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