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MARINFORSK-Marine ressurser og miljø

Research Term at IMEDEA, Mallorca

Tildelt: kr 0,43 mill.

My proposed reserach term will focus on two main activties; Ignacio Catalan and coworkers has extensive experience in working with telemetry. Currently, a high – resolution tracking system is in place to study behavioural patterns of pearly razorfish (Xyrichtys novacula) in a marine protected area, where movement of 300 tagged fish is being analyzed. The pearly razor fish are quite stationary, and are not believed to move from the large sand patch where the 70 receivers are placed. They also have interesting sexual traits such as the formation of harems, so this represent a unique opportunity to study a very distinct mating system where lots of different hypotheses in regard to mate choice, fitness and reproductive success can be tested. I have worked extensively with telemetry studies on the Atlantic cod (Gadus morhua) mating system (see attached CV) so this represent a great opportunity to learn about a new mating system while also gaining insights valuable for my own research. Ignacio Catalan also works on topics such as climate change impacts on local fish and fisheries. This topic is of particular relevance to the ongoing RCN project ScaleClim where I lead a WP looking at the effect of climate change on cod spawning performance. I am presently involved in numerous telemetry studies spanning the Norwegian coastline, where telemetry grids have been deployed at Atlantic cod spawning grounds. These studies focus on the effect of various anthropogenic and environmental factors on cod spawning, and continues to provide a rich source of data. More than 700 adult cod have been fitted with acoustic telemetry transmitters and the telemetry study in the Trondheimsleia in mid-Norway have alone provided more than 11 000 000 unique data points. Combined with information of fish physical size, genetic structure, gender and maturation stage, this makes for a unique data set that can be used to study a plethora of questions related to cod spawning and habitat use.

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MARINFORSK-Marine ressurser og miljø