Interlinked patterns in movements and otolith formation of cod (Gadus morhua) in the southern Baltic Sea

Interlinked patterns in movements and otolith formation of cod (Gadus morhua) in the southern Baltic Sea Interlinked patterns in movements and otolith formation of cod (Gadus morhua) in the southern Baltic Sea Dissertation with the aim of achieving a doctoral degree at the Faculty of Mathematics, Informatics and Natural Sciences Department of Biology Institute of Marine Ecosystem and Fishery Scien. [...] The evaluation of movement patterns in the present centre of cod distribution thus provided new insights into the behaviour and ecology of cod inhabiting the permanently stratified brackish-water ecosystem of the southern Baltic Sea. [...] Tags vary by the manufacturer in the structure of the data collected, the number and types of sensors included, and the size (Nielsen, 2019). [...] When applying a geolocation framework to cod in the Baltic Sea both the characteristics of the hydrography and of the species have to be considered to identify the most promising approach. [...] The EBC currently mainly inhabits the Arkona Sea and the Bornholm Basin because the hydrographic conditions on the spawning grounds further East prevent successful, regular survival of cod eggs since the mid-1980s and led to a contraction of the stock to the southern Baltic Sea (Köster et al., 2009; Eero et al., 2012).