This Lunchtime Rendezvous is primarily a social occasion for the Seniors Group but the talks are intended to be of interest to all. Over coffee, lunch and tea there will be an opportunity to discuss possible future events of interest to Members. The cost is given on the Booking Form and includes coffee, a four-course lunch with wine and tea. Non-Members are most welcome to attend. Please note that the completed Booking Form must be received by the Seniors Group Coordinator before the deadline shown on the Booking Form.
The Aberdeen Maritime Museum is about a seven minute walk from the Aberdeen Railway Station and the adjoining Aberdeen Bus Station.
Commercial car parking is available nearby, with an entrance on Virginia Street.
10:30 - Arrival and Coffee/Tea with Shortbread
11:05 - Welcome by the Seniors Group Coordinator
11:06 - Introduction by Mr David MacLennan
11:10 - Lecture Hydroacoustic approaches to remote species identification by Dr Paul G Femandes, Reader, School of Biological Sciences, University of Aberdeen, Aberdeen.
12:00 - Tour of the Aberdeen Maritime Museum
12:30 - Four Course Lunch with Wine (Waitress Service) with partners and friends
15:00 - Lecture The Science of Managing Fisheries by Dr Robin Cook, Senior Research Fellow, Department of Mathematics and Statistics, University of Strathclyde, Glasgow.
15:50 - Afternoon Tea with Homebakes
16:30 - Finish
Hydroacoustic Approaches to Remote Species Identification by Dr Paul G Femandes, BSc, PhD, Reader, School of Biological Sciences, University of Aberdeen, Aberdeen.
Underwater acoustic surveys, using active acoustic devices such as echosounders and sonars, are used throughout the world to study the ecology of marine organisms and to determine the abundance and distribution of marine resources. The techniques, which are analogous to biological echolocation systems in whales and dolphins, are encapsulated in the discipline of fisheries acoustics which has flourished over the past 60 years. One of the principal requirements in any application is the isolation and identification of the echoes. In this presentation, the various methods that are used to determine the species composition of echoes are reviewed. These include traditional scrutiny methods based on experience of fishing operations; the application of theoretical scattering models; the use of multi-frequency devices, including broadband systems; multi-beam sonar; single-target detections; image analyses; statistical analyses; and ground-truthing (alternative sampling tools). Many of the objects that reflect sound underwater can now be identified, at least to object type. Combining this information with ecological data, highly resolved in space and time, is often enough to determine the species composition of the echoes. Consequently, hydroacoustic methods are now effective management tools which contribute to the sustainable exploitation of our marine resources.
The Science of Managing Fisheries by Dr Robin Cook, BSc, DPhil, Senior Research Fellow, Department of Mathematics and Statistics, University of Strathclyde, Glasgow; Formerly Director of Marine Scotland Science, Aberdeen.
The public perception of European fisheries is heavily influenced by tales of disaster and the evils of European policy. In this talk, the basic theory of fishing and why stocks become over-exploited will be explored. The process of managing fisheries within the EU will be discussed and how science is used or misused to support policy. An analysis of the fish stocks in the North East Atlantic will be presented to illustrate a number of misconceptions about their current status. The prospects for recovery of the stocks against a background of environmental change and seal predation will be discussed. As a result of strong public pressure, reforms have been made to the Common Fisheries Policy that will lead to a ban on the discarding of fish. The causes of discarding will be examined to show that catch limits are not the main cause of discarding. The proposed regulations to eliminate discarding may have unexpected consequences for the ecosystem and the benefits to the fish stocks themselves may be less than expected.