This current literature review updates and builds upon Samuels et al. 2000, by including almost 190 new references from 2000-2015 pertaining to swim-with activities, as well as vessel, land-based, and feeding interactions. The scope has also been expanded to include additional species of cetaceans, pinnipeds, and sirenians. Our updated review highlights the major animal responses to viewing activities in four major themes: (1) behavior, (2) habitat use, (3) health, and (4) reproduction. Reoccurring responses documented in all four interaction themes include changes in animals' behavioral budgets and ranging patterns, habitat displacement, avoidance behaviors, and reduced maternal care. Many studies highlighted the risks and effects associated with interactions, such as increased energetic demands, predation, acoustic disturbance, reduced juvenile survivorship, boat collision, and entanglement injuries. This updated literature review provides a comprehensive analysis of human-marine mammal interactions to date that can help guide future potential research projects and management strategies.

https://doi.org/10.7289/V5/TM-NMFS-SER-7

Technical Memorandum