Comparing the Effects of Boat Noise on Sedentary and Mobile Soniferous Fish: Behavioral and Methodological Insights
摘要
Anthropogenic sound, particularly from boat traffic, has significantly altered marine soundscapes, affecting vocal fish species in complex, species-specific ways. This chapter explores how boat noise impacts wild soniferous fishes with differing life-history traits and highlights the methodological challenges involved. For example, toadfishes are epibenthic, nest-breeding species with prolonged parental care, while sciaenids are semi-pelagic broadcast spawners with pelagic larvae. Despite these ecological differences, both groups rely on acoustic communication for reproduction and are susceptible to noise interference. Reported responses to boat noise vary widely, shaped not only by species’ mobility and reproductive strategies but also by the methodologies used to study them. Toadfish, being relatively sedentary, allow for acoustic monitoring and individual-level assessments of anthropogenic sound impacts. In contrast, the greater mobility of sciaenids complicates localization and challenges in behavioral assessment, making it difficult to track individuals or capture the full extent of noise-related disruption. Evaluating reproductive impacts in such mobile species is particularly challenging, if not impossible. Consequently, comparing impacts across taxa requires methodological refinement that accounts for species-specific traits. This chapter highlights the need for refined methodologies to better assess the full extent of anthropogenic sound impacts on species with different life-history traits.