Tagging Studies

Tagging studies, using technologies such as satellite telemetry, collect information on both bycatch and target species to identify and characterize their habitat** [1]. These habitat data can be used with fisheries data, such as effort and bycatch interaction rates, [1] to identify habitat or interaction 'hotspots' and inform managementBycatch management is becoming increasingly dynamic, aided by advances in tagging telemetry. For example, a recent study identified the principal environmental variables influencing the co-occurrence between whale sharks, baleen whales and tuna purse-seine fisheries [2]. These mega-fauna were mostly observed in productive areas during particular seasons.

See 'Spatial and Temporal Measures' for more information.

**Studies examining post-release mortality of bycatch species utilise tagging. Use the filter ‘post-release mortality’ to discover these references.


  1. Howell, E.A., Hoover, A., Benson, S.R., Bailey, H., Polovina, J.J., Seminoff, J.A. and Dutton, P.H. 2015. Enhancing the TurtleWatch product for leatherback sea turtles, a dynamic habitat model for ecosystem-based management. Fisheries Oceanography 24(1): 57-68. doi:10.1111/fog.12092.
  2. Escalle, L., Pennino, M.G., Gaertner, D., Chavance, P., Delgado de Molina, A., Demarcq, H., Romanov, E. and Merigot, B. 2016. Environmental factors and megafauna spatio-temporal co-occurrence with purse-seine fisheries. Fisheries Oceanography 25(4): 433-447. doi:10.1111/fog.12163.