What’s Washing Up: Bioluminescent Ostracods!

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My third week was just as action packed as the last two, with plenty of in-water activities to keep us busy! We focused on underwater surveys this week, which included a few SharkWatch and TurtleWatch dives, of course plenty of those amazing Manta dives, as well as continuing our coral bleaching surveys, and implementing a new project looking at Crown of Thorns Starfish behaviour. We used a range of different techniques as each survey is assessing totally different aspects of the reef and the creatures that inhabit it. Ecological monitoring is an important tool in science. It allows us to take a snapshot and quantify what is currently in a system, to monitor any changes over time, and to compare different sites.

SharkWatch is a Citizen Science project where dive operators from around the Maldives submit their species sightings to the central Marine Research Centre based in Male. For me, it meant I got to go on several dives to help the dive guides collect the data. For the guides it can be difficult to look after a guest and simultaneously remember how many of which species they saw, especially when we can see up to 30 white tips and 20 black tips on one dive! So it was my job to go along to quantify their sightings! This data helps inform policy regarding the protection of shark species, as we track if the shark populations are increasing or decreasing following the shark fishing ban in 2010. So far it has been noted that all shark species sightings are on the increase in Maldives – great news for a healthy system!

SharkWatch is a Citizen Science project where dive operators from around the Maldives submit their species sightings to the central Marine Research Centre based in Male. For me, it meant I got to go on several dives to help the dive guides collect the data. For the guides it can be difficult to look after a guest and simultaneously remember how many of which species they saw, especially when we can see up to 30 white tips and 20 black tips on one dive! So it was my job to go along to quantify their sightings! This data helps inform policy regarding the protection of shark species, as we track if the shark populations are increasing or decreasing following the shark fishing ban in 2010. So far it has been noted that all shark species sightings are on the increase in Maldives – great news for a healthy system!

TurtleWatch is a similar project, but with an added aspect of photographic identification! The scales on the faces of each turtle are unique like finger prints, allowing us to tell the difference between individual turtles on the reef. We managed to spot some golden oldies who were ID’d years ago, like Pippin at the Manta Point (She zooms around the cleaning station pretending to be a Manta..), but we also managed to capture some new faces, which was pretty cool – I’m keen to name one Dylan! The aim of this project is to determine the demographics of the sea turtle population in Maldives. We collect data on the species, sex, carapace (shell) length, any injuries, and also take photo ID’s of the facial scutes. This project also helps inform policy. Turtles in Maldives have been protected since 2005 by a 10 year moratorium. In 2016, this policy needed renewing and our data from TurtleWatch was used to ensure a new poaching ban was imposed for the next 10 years. The project also includes data collection on turtle nests, which enforced a new ban to protect turtle eggs in the Maldives too!

SharkWatch is a Citizen Science project where dive operators from around the Maldives submit their species sightings to the central Marine Research Centre based in Male. For me, it meant I got to go on several dives to help the dive guides collect the data. For the guides it can be difficult to look after a guest and simultaneously remember how many of which species they saw, especially when we can see up to 30 white tips and 20 black tips on one dive! So it was my job to go along to quantify their sightings! This data helps inform policy regarding the protection of shark species, as we track if the shark populations are increasing or decreasing following the shark fishing ban in 2010. So far it has been noted that all shark species sightings are on the increase in Maldives – great news for a healthy system!