Benthic Ecology Lab Dr. Diego Lirman Marine Biology and Fisheries UM / RSMAS Research Associates: Travis Thyberg (MPS) Stephanie Schopmeyer Graduate Students: Brittany Huntington Rolando Santos Ford Drury Undergraduate Students: Caitlin Hill LIRMAN LAB DISTURBANCE ECOLOGY RESTORATION RESILIENCE BENTHIC ECOLOGY LAB ORGANISMS / HABITATS? SCALE? WHERE? The Role of Coral Nurseries in the Restoration of the Threatened Staghorn Coral Acropora cervicornis Schopmeyer, S., Lirman, D., Huntington, B., Thyberg, T., Drury, C., Herlan, J., Santos, R., Young-Lahiff, C., Hill, C. Stephanie A. Schopmeyer Senior Research Associate UM/RSMAS In-situ Acropora nurseries Original BNP Nursery (2007) New BNP Nursery (2009) # Fragments 465 609 Max Colony Size 7.7m 1.3m Live Tissue 234.3 m (23x) 56.1 m (5x) Annual Growth Potential 104.3 m/yr 88.1 m/yr Scar Restoration/Outplanting • Restore damaged Acropora population from ship grounding • Outplanted 6 nursery reared genotypes • 92% survival- increased healthy tissue (3x) after 8 months May 2011 Sept 2010 Damselfish study • Determine effect of damsel predation/formation of algal lawns on growth and productivity on A. cervicornis • Field surveys within BNP/nursery manipulation experiments Linking corals to habitat: a multi-scale, cross Caribbean investigation using a landscape ecology approach Brittany Huntington PhD candidate How landscape heterogeneity determines patterns of species diversity? Remote sensing α+β=γ Coral Ecology Diversity theory Pattern Application Identifying patterns of coral diversity Linking diversity patterns to variations in reef landscape Process Testing the link between corals reef landscape Improving marine reserve evaluation Improving coral community monitoring Travis Thyberg Senior Research Associate/MPS Student Shallow Water Positioning System (SWaPS) Travis Thyberg- Senior Research Associate/MPS Student • To monitor and assess affects of freshwater regime changes over time • Work conducted in shallow boundary areas (less than 500m from shore) • All surveys conducted using digital camera (either boat or swimmer based) • High density site surveys conducted biannually (each image geo-tagged) • Randomized site selection annually Tt declining, Hw and Rm stable, MA highly dynamic MPS internship work with UM-Lirman Lab and Biscayne National Park Water Quality. Seagrass drivers: Salinity - variable/stable Nutrient availability/loading Distance from shore: Terrestrial origin? Do Buoys act as bird stakes? Biomass nutrient sampling Rolando O. Santos PhD Candidate Seascape Ecology – Bridging the gap between applied ecology and coastal management SAV Seascape Dynamics Ecological Implications vs Understand the relationship between ecological good and services, and changes in size, arrangement, and quality of habitats Sheltering Foraging Sheltering Foraging Some Results…… a p < 0.05 d p < 0.05 e p < 0.05 f b c Some Results…… TT Wet Hw Wet 55.00 50.00 45.00 Area (km^2) 40.00 35.00 30.00 35.88 37.06 Unsuitable Area Suitable Area 25.00 20.00 15.00 10.00 13.67 14.84 Thalassia testudinum Halodule wrightii 5.00 0.00 * HS using high occurrence threshold 16.00 Unsuitable Suitable Proportion of the landscape (%) 15.00 14.00 13.00 12.00 11.00 10.00 9.00 TT 8.00 HW 7.00 6.00 5.00 4.00 3.00 2.00 Unsuitable 1.00 Suitable 0.00 Zone 1 Zone 2 Zone 3 Zones Zone 4 Crawford Drury MBF Coral Feeding Experiment Ford Drury- MBF • Fed & Unfed, Shaded & Unshaded combined for 4 treatments using Acropora cervicornis and Porites furcata • Growth Measured via Buoyant weight and Linear Extension • 5 measurements taken over 117 days • Preliminary results indicate that light treatment influences A. cervicornis, while feeding treatment has the greatest impact on P. furcata. This indicates different feeding strategies in these two species. Feeding Results Acropora - Light vs. Shade Porites – Fed Vs. Unfed Additional parameters are being investigated including chl a density, zooxanthellae density, and stable isotope ratios. Algal Growth Experiment • Macroalgal blooms in Biscayne Bay can disrupt localized habitats and outcompete seagrasses in the area • One algae of particular interest is Anadyomene spp. • Anadyomene stellata & Anadyomene pavonina are being grown in the lab under different light, nutrient, and temperature conditions to help understand what induces localized blooms like those seen in northern Biscayne Bay Scoring Experiment Caitlin Hill UM Undergraduate Student • Increase productivity of A. cervicornis by inducing branch formation at lesion sites • 4 treatments: control, two scores, two scores with no apical, four scores alternating sides