Ocean Predator Movement Ecology

and Conservation

Research Lead – Professor David Sims

Our research focuses on marine predator, notably shark movements, behaviour and ecology in relation to environmental changes and anthropogenic threats. The aim has been to understand patterns, mechanisms, causes and consequences of behaviour, movement and population redistributions across fine to global scales. Key motivating questions are why do sharks move where they do, what space use patterns emerge and why, and what are the consequences of such dynamics for conservation in the face of anthropogenic activities?

Our approach is to obtain new insights by applying novel telemetry, bio-logging and analytical approaches to understand predator-environment interactions from individual-based tracking to population modelling. Our research tests hypotheses about foraging behaviour, habitat use, optimal searching, migration under climate change, redistribution patterns, and impacts of fishing and climate change. Results are used to to inform conservation and management of shark and other populations, particularly in relation to fishing exploitation and climate change.

A Whale Shark swimming in clear seas with multiple sharks seen in distance
Whale Shark. Credit: Dr Simon Pierce

Our Research Impacts


Mysterious circles of basking sharks explained

Research by our group identifies northeast Atlantic coastal waters as critical habitat supporting courtship reproductive behaviour of endangered basking sharks, the first such habitat revealed for this species globally.

Global shipping trade is killing whale sharks

Our research reveals substantial “cryptic” lethal ship strikes of whale sharks, which could explain why populations continue to decline despite international protection and low fishing-induced mortality. Mitigation measures to reduce ship-strike risk are needed to conserve populations.

Read more: “Global shipping trade is killing whale sharks” The Washington Post

Key Publications

Global collision-risk hotspots of marine traffic and the world’s largest fish, the whale shark – PNAS

Climate-driven deoxygenation elevates fishing vulnerability for the ocean’s widest ranging shark – eLife

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Global spatial risk assessment of sharks under the footprint of fisheries – Nature

Latest News


Our Team

Professor David Sims

Professor David Sims, Mem.MBA, MAE

Senior Research Fellow

Professor David Sims, Mem.MBA, MAE

Senior Research Fellow

Professor David Sims

dws@mba.ac.uk

I have a lifelong interest in the behaviour, ecology and conservation of ocean predators. My research career began in 1991 with studies on the ecophysiology of feeding in small-spotted catsharks, completed in part at the Marine Biological Association. I embarked in 1995 on what has become a 25 year study of basking shark behavioural ecology. In 2001, shortly after joining the MBA as Research Fellow, we obtained the first long-term satellite trackings of basking sharks showing that they do not hibernate in winter, exhibit regional annual site fidelity, and cross national boundaries frequently, results which contributed to their international protection under CITES (2003) and CMS (2006) listings. Since 2001 I have studied the movement ecology of oceanic sharks and other threatened fish in relation to climate change and fishing. In 2016 I initiated the Global Shark Movement Project, a collaboration of over 150 scientists across 26 countries, aimed at tracking movements and changing habitats of pelagic sharks and quantifying the threats they face. We revealed where large spatial overlaps between sharks and longline fisheries and shipping occurred, demonstrating how threatened populations are most impacted. Awards for our research include the FSBI Medal (2007) and the Marsh Award for Marine Conservation (2019).

Research Group: Ocean Predator Movement Ecology and Conservation

Amy Jeffries smiling with an image of a Basking Shark mouth open behind her

Amy Jeffries BSc

PhD Student

Amy Jeffries BSc

PhD Student

Amy Jeffries smiling with an image of a Basking Shark mouth open behind her

amyjef@mba.ac.uk

I am a marine biologist currently completing my PhD with the Sims Lab at the Marine Biological Association in conjunction with the University of Southampton, as part of the European Research Council funded project OCEAN DEOXYFISH. My research explores the impacts of declining dissolved oxygen levels in our world’s oceans, and the effects this is having on the physiological ecology of marine predators, in particular wide-ranging oceanic shark species. Through my research I aim to provide better insights into how sharks navigate their 3D environment and determine their responses to changing oceanic conditions. Prior to starting my PhD, I completed my MRes Marine Biology degree at the University of Plymouth in collaboration with the MBA and studied Marine Biology at undergraduate level with the University of Exeter. Alongside my studies I have participated in various field work experiences roles as I wanted to be at the forefront of the conservation action. I worked in South Africa for an NGO; it was here where I saw my first shark in its natural habitat. This encounter sparked my enthusiasm to help contribute to the species conservation efforts through my research.

Dr Emily Southall

Dr Emily Southall

Project Scientific Officer

Dr Emily Southall

Project Scientific Officer

Dr Emily Southall

emisou@mba.ac.uk

I am part of the dynamic multidisciplinary team working on the ERC Ocean DeOxyfish project, aimed at unravelling the complex effects of climate-driven ocean deoxygenation on shark and tuna species. My love of shark behaviour and ecology began with research on basking sharks in 1998 and after joining the MBA in 2001 I have worked on several projects, including one that led to the first long-term, 3D tracks of any pelagic shark species and ultimately contributed to the worldwide protection of basking sharks through CITES and CMS listings. More recently, a collaboration with scientists and the conservation sector in Ireland led to ‘Circles in the sea’, a multi-year study on non-feeding basking shark social behaviour and the discovery of ‘toruses’ which will help inform protection of basking sharks in Irish waters. With a hope to conserve shark species, I am also a member scientist of the Global Shark Movement, a worldwide collaborative initiative consisting of 40 groups from 26 countries that assembles and uses hard-won shark bio-logging data to tackle global anthropogenic pressures such as climate warming and over-fishing.

matt-waller

Matt Waller

PhD Student

Matt Waller

PhD Student

I am a PhD student within the Sims lab at the Marine Biological Association, in conjunction with the University of Southampton, as part of the European Research Council funded project OCEAN DEOXYFISH. My research focuses on the impact declining oxygen in the world’s oceans will have on the biology and ecology of large oceanic shark species. My main interests lie in using satellite tracking technologies to explore how shark behaviour and distributions are altered by changes in their environment and how this may effect shark interactions with human threats, such as fishing.

Before beginning my PhD I competed my bachelor’s and master’s degrees in marine biology with the University of Plymouth. I have also held marine science roles at the United Kingdom Hydrographic Office and several positions in Seychelles, including at the UNESCO world heritage site Aldabra

Freya_Womersley

Dr Freya Womersley

Postdoctoral Research Scientist

Dr Freya Womersley

Postdoctoral Research Scientist

Freya_Womersley

frewom@mba.ac.uk

I am a conservation biologist currently completing my PhD research in the Sims Lab. My goal is to undertake research that can directly inform policy and sustainable management of marine species and habitats. At the moment my work focuses on exploring how movements and behaviours of pelagic sharks can be integrated into management through an understanding of their interactions with human activities now and in future oceans.

Through my research and professional development I have aimed to collaborate widely and approach topics where conservation and biology/ ecology converge, while fuelling my own passions and interests in the ocean.

Born in the UK, I studied Biological Sciences at undergraduate level at the University of Exeter where I developed an interest in marine ecology.

After my studies, I wanted to experience the ocean first hand and immerse myself in the front lines of conservation. Particularly intrigued by sharks, I first spent time working in Seychelles for a whale shark focussed NGO and then for other projects across the world. Working with local communities and dedicated researchers in the field shaped me into the scientist I am today and led me to continue my MSci and PhD research. 

In my spare time I love to hike, wild camp and swim and to dive.