Marine Detective: tracking the origin of marine animals
Understanding the movement patterns and foraging behaviours of marine animals is vital for effective conservation of endangered organisms and management of limited marine resources. However, tracking large numbers of small or elusive organisms, or understanding past foraging locations is extremely difficult in open ocean settings. In addition EU law states that all commercially landed fish must be labelled with their catch location, however current techniques are unable to verify these locations are being reported accurately, opening up opportunities for food fraud. At the University of Southampton, we have been developing new techniques using naturally occurring “internal tags” called stable isotopes which allow us to retrospectively investigate where an animal has been feeding. In this talk I will explain the importance of determining origin and traceability of marine animals, the methods behind this work and show examples of how these techniques can increase our understanding of behavioural ecology of different marine animals (fish, seabirds and sharks) and how this has crucial impacts on marine conservation, management and food fraud.
Katie St John Glew is a PhD student at the University of Southampton. Her doctoral research focusses on spatial ecology where she is studying the movement and foraging behaviours of different marine animals by using stable isotope analysis. During her PhD, Katie has taken part in three fisheries surveys around the UK Shelf seas to collect her data and hahasve spent time working within NIWA’s stable isotope ecology facility in New Zealand. Katie has also completed a three month internship working for the Chief Scientific Advisor at DEFRA. Before starting her PhD, she completed a MSci in Marine Biology also at the University of Southampton. Katie's interests include conservation, fisheries and marine policy.
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Marine Life Talks
These talks are held on the first Thursday of each month at 7pm in the Henry Charnock Lecture Theatre, National Oceanography Centre. Please sign in outside the lecture theatre on level four.
All talks are free and open to members of the public.
Next Month’s Talk
7 December 2017 – Title to be confirmed