Photo Friday

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White grunts schooling over a fire coral.

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Reef Watch: Empowering citizens to monitor Bermuda's reefs and fishes

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Bermuda’s coral reefs are vital to the persistence of our economy and wellbeing. Living coral reefs act as a self-healing protective sea wall, blocking storm waves from destroying our fragile limestone shoreline and the coastal infrastructure we built along its edge. Our tourism industry relies on the beauty and charisma of our island; contributed substantially by the many recreational and aesthetic opportunities provided by the coral reefs around us. An economic evaluation of the lagoonal reef, which represents half of the entire reef system, found that $750,000,000 to $1,250,000,000 are contributed to Bermuda’s economy annually by the reefs of Bermuda. It is strongly in our interests to ensure that the coral reef system that protects and sustains our lives is itself protected from the extensive harm that can be caused by bad human behaviour such as overfishing, dredging, shipping traffic and the global environmental threats of climate change and ocean acidification. Creole w...
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Clod cards are what??

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By Brittany Huntington, Doctoral Student, RMSAS Univ. of Miami and BREAM summer graduate intern, funded by ACP What are these? Fossilized marshmallows? White chocolate petite fours? No no…this is real science people! This abundance of ice cube shaped trapezoids are nicknamed “clod cards”: a simple yet effective way to measure water movement as a proxy for current and flow exposure at underwater sites (developed by Doty et al., 1971). The mechanism is straight-forward. These plaster of paris ‘clods’ are all identical in composition, shape and size. Each clod should therefore dissolve slowly underwater at a constant rate. By weighing the dry clod cards before deployment, leaving them underwater for a fixed time period (usually between 24-48 hours) and then collecting them and re-weighing each clod, we can determine the precise weight of plaster of paris lost from each card. Clods losing more weight were exposed to greater water flow than cards exposed to less water flow. I am a visi...
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Mapping Bermuda's Coral Reefs

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