This week Shaun travelled to Ireland to meet with friends and colleagues Christos Ioannou, Phil McGinnity, and Valentin Lecheval, to perform work on some ongoing projects. The weather wasn’t very cooperative but it was a productive and fun trip nonetheless!
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This summer, Barbara, Magdalene, Jack and Shaun went to the North Sea Oceanarium in Denmark to run an ”upscaled” fishing experiment on Atlantic Cod. This work was done together with colleagues Junita Karlsen and Peter Skov from DTU, the Danish Technical University, and Albin Gräns and Per Hejlmstedt from SLU, the Swedish Agricultural University.
Part of the ERC PHYSFISH-project, this experiment aims to investigate why certain fish within species might be more vulnerable to capture by fishing than others and if this is because they differ in behavior, metabolism, or stress response. Before running fishing simulations, using trapping and angling, all fish where implanted with loggers continuously recording their heart-rate and then measured for their behavioural traits and metabolism.
Thanks to the staff at the North Sea Oceanarium for making this possible and to all for this great collaboration!
During the trip Shaun and Barbara also joined for the first year the annual ICES-FAO WGFTFB (Working Group on Fishing Technology and Fish Behaviour) meeting held in Hirtshals, Denmark to talk about the research done in the PhysFish-project. It was a great opportunity meeting scientists working on fishing gear technology and gear selectivity, including those that developed the cod pot used in our experiment! We also learned from the chairman Haraldur Einarsson, threatening to open a can of fermented shark is a rather efficient way to make speakers respect their presentation time…
Shaun Killen recently returned from a two-week stint working with colleagues Suzie Mills and Ricardo Beldade at CRIOBE (shown above), on the beautiful Tahitian island of Moorea in French Polynesia. Accompanying Shaun was IBAHCM Research Fellow Tommy Norin, who will remain in Moorea until mid-December (poor guy).
The main focus of the collaboration is to study the factors that influence the dispersal of clownfish larvae after they hatch and leave their nest. In particular, the aim was to see how the metabolism and swimming ability of the larvae changes throughout their early development, to understand whether the little guys are able to control their own destiny by swimming faster than the prevailing currents.
Other projects underway with the team include understanding how anenomes affect routine oxygen uptake in their resident clownfish, and studies to examine how various environmental stressors affect metabolic rate in sea hares.