Eva Varga

Operations Manager

Eva joined HWDT in January 2014. She had done volunteer work for whale and dolphin conservation organizations, including HWDT and has a keen interest in cetaceans.

Until the end of 2013 she was the Director for Portfolio Performance at NESsT, leading the development and implementation of new strategies for a portfolio of social enterprises, capacity building, financing and performance tools/mechanisms. Eva worked for over 10 years at NESsT, developing social enterprises in Central European and Latin American countries. Before joining NESsT in 2003, Eva worked in the field of microfinance, as a Branch Manager of the Micro Finance Bank of Yugoslavia. Prior to that, she worked as an internal management consultant at ABN-Amro Bank in Hungary.

Eva is a member of the European Commission’s Expert Group on Social Entrepreneurship (GECES). She has a master’s degree in international affairs from the School of International and Public Affairs, Columbia University in the City of New York.

Contact Eva

Kerry Froud

Marine Biodiversity Officer

Kerry graduated from the University of Chichester in 2009 with a BA (Hons) degree in Adventure Education. During her years work placement as a sea kayak guide in Tonga (where she encountered the majestic humpback whales), she discovered her passion for whale and dolphin conservation. Since then she has gained vast experience in marine mammal science volunteering and working on projects worldwide.

Projects have included sailing across the Atlantic on IFAW’s cetacean research vessel Song of The Whale, studying breeding elephant seals on the remote Southeast Farallon island off California, grey seals on the Isle of Man, fur seals and sperm whales in New Zealand, migrating humpbacks in Eastern Australia and recently she conducted a cetacean survey on the Faroe Islands.

Contact Kerry

Mark Whitaker

Finance Office and Acting Volunteer Coordinator

Gemma Paterson

Gemma Paterson

Education Officer & HWDT Administrator

Gemma is now on maternity leave until summer 2014 - please direct all correspondence to or call 01688 302620.

Gemma has been working within the education team at the Trust since April 2008. Gemma runs all aspects of the education and outreach programme. Her role also includes fundraising and overseeing the day-to-day running of the HWDT office.

Prior to working with the Trust, Gemma gained an MSc in Ecology at the University of Aberdeen and was employed in the south of England in the field of marine environmental education. She has most recently completed her PGCE in secondary science at the University of Leicester.

Contact Gemma

Morven Russell

Morven Summers

Volunteer Coordinator & Marketing Officer

Morven is now on maternity leave until summer 2014 - Mark Whitaker is now the acting Volunteer Coordinator

Morven became the Trust’s Volunteer Coordinator and Marketing Officer in April 2007.  As well as completing various marketing and administration tasks, Morven recruits and manages both land and boat based volunteers.  She is also responsible for keeping in touch with supporters.   

In 2006 Morven gained a BSc in Environmental Management and Technology from Heriot Watt University.  She has also worked with local marine wildlife operators Sea Life Surveys.


Contact Morven

Olivia Harries

Biodiversity Officer- Currently on sabbatical.

Olivia Harries graduated from St Andrews University where she gained a MRes in Marine Mammal Science. Her interests lie within population biology and ecological and environmental modelling. Her Masters thesis analysed data collected from whale watching operations and assessed whether such platforms of opportunity could contribute to the data required for conservation and management. It was based in the Inner Hebrides and concerned harbour porpoise distributions and densities. She has conducted marine mammal based field work in Honduras, Central America; Plettenberg Bay, South Africa; Florida, USA and in Cardigan Bay, Wales which is her native country.

Contact Olivia

Past members of staff

Mark Hosford

Sightings & Strandings Intern

Mark Hosford is a marine biologist with an interest in cetaceans. He graduated from University College Cork where he gained a BSc in Zoology and an MSc in Applied Marine Biology. His masters thesis studied the behaviour and habitat use of a resident population of bottlenose dolphins on the west coast of Ireland. He has worked as crew onboard a dolphin watching vessel and as assistant Sightings Officer for Sea Watch Foundation. Mark has been involved in marine mammal research in the Shannon estuary, Ireland, Cardigan Bay, Wales and the Faroe Islands. 

Contact Mark

Georgina Reeve

Education Intern

Georgina is the Education Intern at the Trust, and will be supporting the Education Officer with the outreach and education programmes over the summer months.
She has a BSc in Environmental Geography from The University of York, with a keen interest in marine science, education and outreach. Prior to volunteering with the Trust, Georgina has worked on marine projects in Greece, northern Fiji and Cardigan Bay, Wales. She is joining HWDT temporarily, before starting a Masters in September.

Nienke Van Geel

Biodiversity Consultant

Nienke van Geel worked for the Trust in 2009 and 2010 as Biodiversity Officer. She is a marine mammal scientist, especially interested in species’ distributions and habitat preferences. She has a M.Sc. (Honours) in Natural Resources Management from Utrecht University (Netherlands), performing her final Masters thesis on whales and dolphins of the Azores in relation to water depth and slope gradient. Before joining HWDT, she worked on IFAW’s RV Song of the Whale on acoustic detections of beaked whales. Currently she is doing a PhD with SAMS on bottlenose dolphin movement patterns in relation to marine renewables and remains working for HWDT as a research consultant.

Susannah Calderan

Susannah Calderan

Biodiversity Consultant

Susannah Calderan is a marine mammal scientist, with a particular interest in cetacean ecology. Having graduated from the University of Wales, Bangor, with an MSc in Marine Mammal Science, she worked on visual and acoustic surveys around the British Isles, including for offshore windfarm sites, before joining HWDT in 2006. She ran the field research onboard Silurian for three years, and now works as a research
consultant for HWDT.

Laura Mandleberg

Sightings Consultant

Laura worked as Sightings Officer with HWDT between 2005 and 2009. She was also the principal photo-identification researcher, maintaining the Trust's catalogues for minke whales, killer whales, bottlenose and Risso's dolphins.

She is an MSc marine biology graduate from Aberdeen University and has worked on projects in France and Greece before moving to the Hebrides.

Laura is currently available as a research consultanat.

Cally Fleming

Cally Fleming

Development Consultant

Cally initially started at the Trust as Director in 1998 and since then has managed the Trust’s development and co-ordinated the wide variety of operations in the Trust. Work includes a wide range of management responsibilities, fundraising and raising the profile of the Trust.

Prior to joining the Trust, Cally gained an Honours degree in Marine Biology and a Marketing Diploma, and has considerable experience working in Scotland’s west coast rural tourism industry.

Contact Cally