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To evaluate the success of A. cervicornis outplanting, an assessment of the entire, habitable reef area using photomosaics may be the most effective method. This project is evaluating long-term and large-scale monitoring methods for outplanted staghorn coral utilizing photo-capture techniques utilizing divers and Automated Underwater Vehicles (AUVs) to compliment standard reef survey methodologies. Photomosaics can be assessed to determine the effectiveness and longterm survival of restoration activities. High-resolution images were captured using a REMUS 1000 for two large outplant sites in Key Largo, FL where multiple outplantings of staghorn coral have occurred over the past five years resulting in the collection of over 60,000 images. Such images were stitched together to create high-definition mosaics of outplanted A. cervicornis colonies and the surrounding reefscape. In addition to the outplanting data collected within mosaic data, restoration success was also evaluated through in-water assessment of the relationship between the current observed A. cervicornis density and past outplanting effort at 11 long-term outplanting sites in the Upper Keys. Finally, a cost benefit analysis was completed to compare the use of mosaics and AUVs to current methods of demographic data collection such as in-water surveys and point count analysis of underwater images.

Continental weathering delivers elements to the oceans via rivers, is responsible for soil and landscape formation, and regulates the concentration of CO2 in the atmosphere. There are multiple controls on rates of continental weathering that can vary in both space and time. This study utilises the lithium (Li) and magnesium (Mg) isotope composition (δ7Li and δ26Mg) of weathering products to better understand the hydrological controls on weathering processes in different environmental settings. The effects of glacial weathering processes on the isotope signatures of Li and Mg delivered to the ocean are assessed by analysis of fjord waters in Greenland at times of high and low ice melt. These data demonstrate that glacial weathering is an insignificant source of both Li and Mg even when ice melt is high. The influence of melt water input on δ7Li and δ26Mg can only be detected at very high freshwater/seawater ratios (>5). Although weathering rates in highly weathered tropical river catchments are typically considered to be very low, analyses of weathering products from the Quiock Creek catchment in Guadeloupe show that weathering processes can respond to short-lived rain events. The δ7Li composition of the Creek decreases after a storm event because of increased input of Li from soil solutions input that have relatively low δ7Li; however, there is little change in δ26Mg after rain events because most of the Mg in the Creek is supplied by throughfall. There are also significant differences in the δ7Li value of the River Amazon between the high and low water stages. δ7Li values are 0.7 to 8.7‰ higher in the wet season, which is attributed to increased input of Li stored in floodplains. However, input of Mg from floodplains has little effect on δ26Mg.

On a beautiful summer day Emma and Steven want to have fun at their favourite lake. However, a mysterious situation thwarts their plans. This leads the two friends on an unexpected quest ... Join Emma and Steven as they explore the vast, intriguing and efficient world of stable isotopes: What are isotopes? How do isotopes work? And last but not least, how can isotopes help Emma and Steven to finally answer the question: Who poisoned Family Mole?