Evaluating Connectivity of Coastal Marine Habitats in the Gulf of Maine by Integrating Passive Acoustics and Metabarcoding

Abstract

Ecological connectivity among coastal marine habitats—linkage in the movement of organisms and natural processes across habitat boundaries—has significant implications for the health and resilience of commercially important or threatened species in the Gulf of Maine (GOM), off the coast of the northeastern United States. Methods designed to efficiently assess connectivity are vital for identifying and managing critical habitats (Perry et al., 2018). Paired use of passive acoustic monitoring (PAM) and metabarcoding seawater samples (MSS) for observing biological and functional connectivity at various spatiotemporal scales in the marine environment is largely unexplored and may provide an efficient alternative or supplement to existing strategies.

First assessment of passive acoustics as a tool to monitor the endangered Mediterranean monk seal in the Madeira Archipelago (Portugal)

“…Because of the vast distances travelled by underwater sound compared to any other cues, chemical or visual, soundscape studies with passive acoustic monitoring (PAM) are particularly useful in marine ecosystems. PAM enables assessment of soundscapes over extended temporal periods with minimal environmental disturbance (Milne et al, 2023) and can provide round‐the‐clock long‐term robust data regardless of weather conditions and other logistically challenging situations (e.g. monitoring remote areas) with minimal or no interference with the behaviour of the individuals (Deichmann et al, 2018; Spence, 2017).…”