ACCE+ DLA programme: Predatory fish declines in coral reef ecosystems: understanding the socio-ecological implications

Background

Coral reefs are vibrant ecosystems that depend on a delicate balance of predator-prey interactions to maintain their health and structure. Unfortunately, predatory fish, particularly those at the top of the food chain like sharks and groupers, are experiencing significant declines in the Western Indian Ocean (WIO). Overfishing and inadequate protection measures threaten these crucial species, leading to a potential `functional extinction` that could disrupt the reef ecosystem and impact local communities. This project aims to explore the ecological role of reef fish predators, the threats they face, and the socio-economic implications of their decline.

Objectives

1.     Investigate predator vulnerability

The project will analyse how predatory fish in the WIO respond to both environmental changes and human activities. This includes assessing the direct effects of fishing pressures.

2.     Otolith analysis to understand life history

Using ear bones (otoliths) from predatory fish, the project will study their growth and longevity. Otoliths have growth rings similar to tree rings, providing critical data on the age and life history of these fish, which is vital for understanding their role in the ecosystem.

3.     Socio-ecological assessment

Integrate local fisher knowledge, to gain insights into community perceptions of predator populations and their ecological importance.

4.     Quantify socio-economic impact

Evaluate the significance of predatory fish to local fisheries, providing valuable information that will inform conservation efforts.

Methodology

The project will employ a multidisciplinary approach, including:

1.     Utilsing long-term datasets (1987-2024) from underwater visual censuses across 70 sites in the WIO to analyse trends in predator abundance.

2.     Conducting interviews with coastal fishing communities to understand their experiences and perceptions of predator populations and human-induced stressors.

3.     Collecting and examining otoliths from fish landing sites in Kenya and Comoros to gather biological data that can be linked with socio-economic and environmental factors.

Skills

This project offers a dynamic research environment where candidates will gain hands-on experience in marine ecology, fisheries science, and socio-ecological analysis.

Training

We are committed to providing comprehensive training throughout the project, ensuring that all candidates develop the necessary skills to succeed. The research environment will be inclusive, valuing diverse perspectives and fostering collaboration. We encourage candidates from all backgrounds to apply, as different experiences and viewpoints enhance the quality of our research.

How to Apply

Please see the ACCE website for all details of how to apply to the programme at each ACCE+ institution: https://accedtp.ac.uk/how-to-apply/. 

All applicants to ACCE+ must complete the ACCE+ personal statement proforma. This is instead of a personal/supporting statement or cover letter. The proforma is designed to standardise this part of the application to minimise the difference between those who are given support and those who are not. Candidates should also submit a CV and the contact details of two referees.

Part-Time Study Options

All ACCE+ PhDs are available as part time or full time, with part time being a minimum of 50% of full time. Please discuss potential part time arrangements with the primary supervisor before applying to the programme. 

Project CASE Status

This project is a CASE project. Your project will be co-supervised by the non-academic partner organisation, and you will spend 3-6 months on a placement with your CASE partner in their workplace. You will experience training, facilities and expertise not available in an academic setting, and will build business and research collaborations. 

Candidate webinar

The project primary supervisor will hold a candidate Zoom webinar in December 2024 to discuss the project with interested candidates. Please register here if you would like to join!