Other ID: none
Status: Completed
Organization(s): USGS, St. Petersburg Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): Richard Poore
Affiliate Investigator(s):
Information Specialist(s): T Hickey, Christopher Reich
Data Type(s): Imagery: Photo, Location-Elevation: Navigation, Sampling: Geology, Time Series: Mooring (physical oceanography)
Scientific Purpose/Goals: To collect cores from 3 species of living coral heads to be used as proxies for retrospective studies of Sea Surface Temperature and paleoenvironmental conditions. And to core into the Holocene rock cap in the Dry Tortugas to be used in reconstruction of sea level history and in the understanding of geological environmental changes in the Dry Tortugas.
Vehicle(s):
Start Port/Location: Key West, FL
End Port/Location: Key West, FL
Start Date: 2008-08-04
End Date: 2008-08-04
Equipment Used: Tripods, Ashtech Z-Xtreme DGPS, Camera, Digital, Hand Held, Choke Ring Antenna, Core Barrels, Hydraulic Coring Drill
Information to be Derived: Coral cores will be used as proxies for sea surface temperature (strontium-to-calcium rations in skeletal material) and coral growth rates over time. Holocene cores will be used in the determination of sea level positioning during the past 10,000 years.
Summary of Activity and Data Gathered: Collected 9 coral head cores from 3 species (Siderastrea siderea, Montastraea faveolata, and Diploria strigosa) within the Dry Tortugas Naitonal Park, primarily in the northeastern quadrant of the park. Holocene cores were collected at 3 sites. Depths drilled ranged from 10 to 18 meters below seafloor. Elevation was collected for the Holocene coring sites by using a dual-frequencey GPS system with Thales choke-ring setup. A basestation was established on a known benchmark, located on top of the fort on garden key, was used to increase the precision of the horizontal and vertical position/elevation at the coring sites.
Staff: Caitlin Reynolds, Jennifer Flannery, Barbara Lidz, Billy Reynolds
Affiliate Staff:
Notes: Equipment Used: Batteries
Location:
Dry Tortugas National Park, FL
| Boundaries | |||
|---|---|---|---|
| North: 24.7240596 | South: 24.45802992 | West: -83.0345 | East: -82.63046329 |
Platform(s):
 Halimeda |
DeLong, K.L., Maupin, C.R., Flannery, J.A., Quinn, T.M., Shen, C.-C., 2016, Refining temperature reconstructions with the Atlantic coral Siderastrea siderea: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 462, pp. 1–15, doi: 10.1016/j.palaeo.2016.08.028.
Flannery, J.A., Richey, J.N., Thirumalai, K., Poore, R.Z., DeLong, K.L., 2016, Multi-species Coral Sr/Ca based sea-surface temperature reconstruction data using Orbicella faveolata and Siderastrea siderea from Dry Tortugas National Park, Florida: U.S. Geological Survey data release, https://doi.org/10.5066/F7CC0XS9.
Flannery, J.A., Richey, J.N., Thirumalai, K., Poore, R.Z., DeLong, K.L., 2017, Multi-species coral Sr/Ca-based sea-surface temperature reconstruction using Orbicella faveolata and Siderastrea siderea from the Florida Straits: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 466, pp. 100–109, doi: 10.1016/j.palaeo.2016.10.022.
Hickey, T.D., Reich, C.D., DeLong, K.L., Poore, R.Z., Brock, J.C., 2013, Holocene core logs and site methods for modern reef and head-coral cores: Dry Tortugas National Park, Florida: U.S. Geological Survey Open-File Report 2012-1095, https://doi.org/10.3133/ofr20121095.
Muslic, A., Flannery, J.A., Reich, C.D., Umberger, D.K., Smoak, J.M., Poore, R.Z., 2013, Linear extension rates of massive corals from the Dry Tortugas National Park (DRTO), Florida: U.S. Geological Survey Open-File Report 2013-1121, 22 p., https://doi.org/10.3133/ofr20131121.
Toth, L.T., Courtney, T.A., Colella, M.A., Kupfner Johnson, S.A., Ruzicka, R.R., 2022, The past, present, and future of coral reef growth in the Florida Keys: Global Change Biology, Glob Change Biol, v. 28 no. 17, pp. 5294–5309, doi: 10.1111/gcb.16295.
Toth, L.T., Stathakopoulos, A., 2019, The absolute and relative composition of Holocene Reef Cores from the Florida Keys reef tract: U.S. Geological Survey data release, https://doi.org/10.5066/P93XXXA0.
Toth, L.T., Stathakopoulos, A., Kuffner, I.B., 2018, Descriptive core logs, core photographs, radiocarbon ages, and accretion data from Holocene reef cores collected throughout the Florida Keys reef tract: U.S. Geological Survey data release, https://doi.org/10.5066/F7NV9HJX.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| Tripods | --- | Mooring (physical oceanography) Benchmarks Navigation | No data was collected |
| Ashtech Z-Xtreme DGPS | --- | Benchmarks Navigation | 08CGS02-NL-rd-1 (GPS points) |
| Camera, Digital, Hand Held | --- | Photo | 08CGS02-PV-rd-1 (field photos) |
| Choke Ring Antenna | --- | Benchmarks Navigation | No data was collected |
| Core Barrels | --- | Geology | 08CGS02-SA-rd-1 (Coral and Holocene Rock Cores from DRTO) 08CGS02-SA-pd-3 (evaluation of coral DRTO 2008) 08CGS02-SA-pd-4 (core description sheets (lithologic descriptions)) 08CGS02-SA-pd-6 (Sr/Ca analysis) 08CGS02-SA-pd-5 (core photographs) |
| Hydraulic Coring Drill | --- | Geology |
