Advances in fisheries science through emerging observing technologies

Abstract

Fisheries is in need for high-quality observations at scales that resolve critical ecological processes and are timely for management. Recent advances in ocean observing technologies have improved the spatial and temporal resolution of measurements, performed during conventional scientific surveys as collaborative approaches, to better understand the dynamics and organization of fish populations and their associated habitat in a rapidly changing environment. In recent years, more reliable and cost-efficient sensors, platforms, and processing technologies have been deployed successfully, which we envision in the coming decade will revolutionize the wide-scale observations pertinent to ocean ecology and biology. The aim of this work is to review the emerging sensing technologies for selected major ecological and biological parameters relevant to fisheries science, and to identify transformative directions for future development of cost-effective technologies and deployment strategies.

Artificial intelligence for fish behavior recognition may unlock fishing gear selectivity

“…Optic and sonar imaging rapidly came into play to directly estimate catches during capture (Silicon Intensified Target, SIT camera system, Krag et al, 2009;acoustic imaging, Ferro et al, 2007), then applied to observe species behavior in gears (Mortensen et al, 2017). Over the years, observing fishes became achievable in various conditions with the breadth of available technology that can be autonomously deployed for ecological and fisheries monitoring (Durden et al, 2016;Moustahfid et al, 2020).…”

“…For ethologists, interpreting behaviors from visual observations come almost instantaneously. As developments of non-invasive and autonomous underwater video cameras continue to advance (Graham et al, 2004;Moustahfid et al, 2020), behavioral observations can now be derived from a plethora of high-resolution marine imagery and videos (Logares et al, 2021). The reach of human vision continues to extend as cameras can be used in most conditions (Shafait et al, 2016;Christensen et al, 2018;Jalal et al, 2020), such as light, dark and muddy underwater conditions, and can go to greater depth and longer periods (Torres et al, 2020;Bilodeau et al, 2022;Xia et al, 2022).…”