Do sea trout Salmo trutta parr surveys monitor the densities of anadromous or resident maternal origin parr, or both?

Rohtla, M., Matetski, L., Svirgsden, R., Kesler, M., Taal, I., Saura, A., Vaittinen, M. & Vetemaa, M. 2017. Do sea trout Salmo trutta parr surveys monitor the densities of anadromous or resident maternal origin parr, or both? Fisheries Management and Ecology 24, 156−162.
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