The invasion of lionfish in the Caribbean has developed into one of the greatest threats to the survival of the region’s coral reefs thanks to the devastating effect they have on native fish populations. Research has naturally focused on mapping the spread of lionfish, quantifying their ecological impacts, and exploring management interventions to reduce their numbers. However, improving our understanding of the behaviour of this species on non-native reefs is of particular interest to better grasp the underlying success of their invasion. This project will assess lionfish behaviour both on the reefs and in a small laboratory, where individuals will be captured and processed. Particular focuses of this work could include prey selectivity, and habitat preferences to investigate the cryptic nature of this species, and data can be linked to ecological characteristics of the reef itself.
In the Caribbean there are a number of core issues that have been affecting the biodiversity of the reefs – including the mass mortality of keystone sea urchins that have allowed algal colonisation of reef areas, an invasive species originally from the Indo Pacific (lionfish) that acts as a predator on reef fish has been spreading across the Caribbean, and overfishing of reef fish by local communities. Opwall has a series of monitoring sites around the Caribbean (Cuba, Dominica and Mexico) and two of those monitoring sites are in Honduras. One is on the island reefs of Utila and the second on the coastal barrier reef of Tela. The island of Utila is used to represent a typical modern Caribbean reef, whereas the mainland bay of Tela offers an alternative type of reef ecosystem, and they combine to help Opwall scientists explore the best ways to protect coral reefs throughout the region. At both sites, teams of Opwall scientists and students collect annual monitoring data to assess temporal patterns of ecosystem change, alongside novel research to address key management priorities and gaps in our current understanding of tropical marine coastal ecosystem function.
Our marine sites are hot and usually dry, but with occasional storms.
Fitness level required
Low. Some fitness is required if including in-water activities, but conditions are relatively easy.
Facilities are comfortable but basic. There is phone signal and limited wifi that is often unreliable.