Type: Large

SeyCCAT strategic objective: Support new and existing marine and coastal protected areas and sustainable use zones.

Lead Project Partner: Global Vision International – Seychelles.

Partners:  Seychelles National Parks Authority, University of Seychelles, James Michel Blue Economy Research Institute.

Summary:   The sicklefin lemon shark (Negaprion acutidens; Ruppell 1835) is categorized as vulnerable (IUCN 2014), in part due to its coastal preference and consequent proximity to human activity, and it faces many threats to its continued survival. The species is fished throughout its range (Compagno 1990), and its small habitat range and limited movement patterns make it susceptible to local depletion since dispersal is limited (Stevens 1984, Stevens et al. 2000, Shultz et al. 2008). For effective protection of shark species it is important to gain an understanding of spatial movements and habitat preferences of critical life stages. The installation of an acoustic receiver array along the north and east coast of Curieuse Island, together with the acoustic tagging of 20 neonates, will enhance our knowledge of N.acutidensspatial ecology. Furthermore, results from this project will enable MPA practitioners to make informed future recommendations with regards to the protection of this particular species. Curieuse Marine National Park (CMNP), designated in 1979, is 2.9km2and located north of Praslin Island and a key tourism site in the inner islands. The island is surrounded by a shallow fringing reef and seagrass beds and has a healthy stand of mangroves. These habitats serve as key sea turtle feeding and nesting grounds as well as providing nursery habitat for key ecological species such as N. acutidens

The overall outcome of this project will be a greater understanding of the movements of neonate N. acutidens within CMNP and the efficacy of the park size in their protection.  The main objectives are:

  • Obtain an improved understanding of spatial behaviour and habitat use of 20 neonate acutidenswithin CMNP by monitoring their movements for six months using acoustic transmitters.
  • Refine mark-recapture population estimates of neonate acutidenswithin CMNP within 18 months
  • Develop local capacity by training at least 10 Seychellois stakeholders and MPA practitioners in shark research techniques by December 2019.
  • Contribute to national efforts to protect biodiversity by identifying areas of critical habitat within and outside CMNP used by the threatened species, neonate acutidens within 18 months
  • Provide critical habitat data to national park managers and stakeholders within CMNP and other protected areas to better inform management decisions regarding the conservation of acutidens within 18 months

Outputs will include maps showing the movement and critical habitat areas of neonate N. acutidensin CMNP, a training workshop for Seychellois stakeholders and students in shark research techniques, a signboard providing information on the project and a peer-reviewed scientific paper on the findings of the project. These outputs will be enabled by activities to include the installation of an acoustic receiver array and implantation of acoustic receivers in neonate N. acutidens, capacity building of staff and students through in-field research experience, and the production of communication materials to disseminate the key findings from the project. The rationale of the project approach is that by collecting data on the movement and habitat use of neonateN. acutidens, a species that is vulnerable to over-fishing, the effectiveness of CMNP in protecting the critical life stage can be assessed. There would be a wide range of beneficiaries associated with this project including SNPA, protected area managers, shark biologists, university students and local fishers. The project will operate over 18 months, with the following phases: 1) development and training; 2) implementation; and 3) assessment, monitoring and management. The project is well aligned with the objectives of the National Biodiversity Strategy and Action Plan (2015-2020) including: 1.1. To make the Seychelles population aware of the values of biodiversity and the steps they can take to conserve it;3.2. To prevent the extinction and improve the conservation status of known threatened species, particularly those most in decline;5.3. To improve, share, transfer and apply the knowledge, science base and technologies relating to biodiversity, its values, functioning, status and trends, and the consequences of its loss. Finally, the project will contribute to the UN Sustainable Development Goal 14 to “Conserve and sustainably use the oceans, seas and marine resources for sustainable development” under sub-goal 14.2 and 14.a.

SeyCCAT funds:  SCR 550 000

Co-financing:  SCR 550 000

Duration: January 2019 – June 2020

Project Application Form: Project Application Form