Faculty & Staff Profiles

Bernhard Riegl

Professor
Associate Director of the National Coral Reef Institute
rieglb@nova.edu
www.nova.edu/ocean/ncri
Education
Area(s) of Research
Coral reefs: geology, population dynamics, mathematical modeling, hydrographic surveying

Dr. Bernhard Riegl is professor at the Nova Southeastern University Oceanographic Center. He is the associate director of the National Coral Reef Institute (NCRI). He received the MSc degree from the University of Vienna (Austria) and the PhD degree from the University of Cape Town (South Africa). He also received the habilitation at Karl-Franzens-University Graz (Austria). He is Geology editor of the international scientific journal Coral Reefs, and editor of the book series Coral Reefs of the World.

 Dr. Riegl's research centers on coral reefs and other tropical benthic biota, such as seagrass and algae. He is both a biologist and geologist, his research and publications have involved the paleontology, sedimentology, spatial dynamics, ecology, taxonomy and conservation biology of coral reefs and associated organisms. He is also active in hydrographic survey, particularly sonar-based seafloor discrimination, which he integrates with optical remote-sensing to provide high-resolution maps of the seafloor. His research has taken place in the Red Sea, Arabian Gulf, Indian Ocean, South Pacific, Eastern Pacific, tropical Atlantic and Caribbean.

Riegl held grants from the Austrian Science Foundation, the South African Foundation for Research Development, the South African Association for Marine Biological Research, NOAA, the US Navy, the WWF, the Austrian Geological Survey, the US Geological Survey and many other local and international agencies. He is author of numerous scientific publications and technical reports for various agencies and companies. He has served as Commission of the European Community and USAID technical advisor in the environmental departments of several Middle Eastern governments and has played an active role in the development of coastal zone management, conservation strategies for coral reefs and environmental legislation.

Current students

PhD Candidates
Kristi Foster -  Coral population dynamics in high-latitude reefs

Anastasios Stathakopoulos -  Sea level history and geomorphic change in early Holocene reefs in Florida

Publications

Riegl B, Bruckner A, Coles S, Renaud P, Dodge RE (2009) Coral Reefs - Threats and conservation in an era of global change. Annals of the New York Academy of Science 1162: 136-186.

Riegl B, Purkis SJ, Keck J, Rowlands GP (2009) Monitored and modeled coral population dynamics and the refuge concept. Marine Pollution Bulletin 58:24-38.

Glynn PW, Riegl B, Romanski AM, Baums IM (2009) Rapid recovery of a coral reef on Darwin Island. Galapagos Research 66: 6-16. Riegl B, Purkis SJ (2009) Model of coral population response to accelerated bleaching and mass mortality in a changing climate. Ecological Modelling 220: 192-208.

Riegl B, Purkis SJ (2009) Markov models for linking facies in space and time (Arabian Gulf, Miocene Paratethys) in: Swart P, McKenzie J (eds) Perspectives in Sedimentary Geology: A Tribute to the Career of Robert Nathan Ginsburg, International Association of Sedimentologists, Special Publication 40, 337-360

Baker AC, Glynn PW, Riegl B (2008) Climate change and coral reef bleaching: an ecological assessment of long-term impacts, recovery trends and future outlook. Estuarine, Coastal and Shelf Science 80:435-471

Rowlands G, Purkis SJ, Riegl B (2008) The 2005 coral-bleaching event Roatan (Honduras): Use of pseudo-invariant features (PIFs) in satellite assessments. Journal of Spatial Science 53(1): 99-113

Purkis SJ, Graham NAJ, Riegl B (2008) Predictability of reef fish diversity and abundance using remote sensing data in Diego Garcia (Chagos Archipelago). Coral Reefs 27:167-178

Riegl B, Moyer R, Dodge RE, Kohler K, Walker B, Gilliam D (2008) A tale of storms, bombs, and germs: Geomorphology and coral assemblage structure at Vieques (Puerto Rico) and St. Croix (U.S. Virgin Islands). Journal of Coastal Research

Walker B, Riegl B, Dodge RE (2008) Mapping coral reef habitats in southeast Florida using a combined-technique approach. Journal of Coastal Research

Riegl B, Dodge RE (2008) Introduction: A diversity of oceans, reefs, people, and ideas: a perspective of US coral research. In:

Riegl B, Dodge RE (eds) Coral Reefs of the USA. Springer-Verlag, Dordrecht, 1-9

Riegl B, Purkis SJ, Houk P, Cabrera G, Dodge RE (2008) Geologic setting and geomorphology of coral reefs in the Mariana Islands (Guam and Commonwealth of the Northern Mariana Islands). In: Riegl B, Dodge RE (eds) Coral Reefs of the USA. Springer-Verlag, Dordrecht, 687-714

Banks KE, Riegl BM, Richards VP, Walker BE, Helmle KP, Jordan LKB, Phipps J, Shivji M, Spieler RE, Dodge RE (2008) The reef tract of continental Southeast Florida (Miami-Dade, Broward, and Palm Beach Countoes, USA). In: Riegl B, Dodge RE (eds) Coral Reefs of the USA. Springer-Verlag, Dordrecht, 125-172

Birkeland C, Craig P, Fenner D, Smith L, Kiene WE, Riegl BM (2008) Geologic setting and ecologic functioning of coral reefs in American Samoa. In: Riegl B, Dodge RE (eds) Coral Reefs of the USA. Springer-Verlag, Dordrecht, 737-762

Glynn PW, Wellington GM, Riegl B, Olson DB, Bornemann E, Wieters EA (2007) Diversity and biogeography of the scleractinian coral fauna of Easter Island (Rapa Nui). Pacific Science 61(1): 67-90.

Riegl B, Halfar J, Purkis SJ, Godinez-Orta L (2007) Sedimentary facies of the Eastern Pacific's northernmost reef-like setting (Cabo Pulmo, Mexico). Marine Geology 236: 61-77.

Purkis, S.J., K.E. Kohler, B.M. Riegl, S.O. Rohmann. 2007. The Statistics of Natural Shapes in Modern Coral Reef Landscapes. Journal of Geology 115:493-508.

Jameson SC, Ammar MSA, Saadalla E, Mostafa HM, Riegl B (2007) A Quantitative Ecological Assessment of Diving Sites in the Egyptian Red Sea During a Period of Severe Anchor Damage: A Baseline for Restoration and Sustainable Tourism Management. Journal of Sustainable Tourism 15(3): 309-322

Banks KW, Riegl BM, Shinn EA, Piller WE, Dodge RE (2007) Geomorphology of the southeast Florida continental reef tract (Miami-Dade, Broward, and Palm Beach Counties, USA). Coral Reefs 26: 617-640.

Riegl B (2007) Extreme climatic events and coral reefs: how much short-term threat from global change? In: Aronson R (ed) Geological approaches to coral reef ecology. Springer-Verlag, Berlin: 315-341

Halfar J, Strasser M, Riegl B, Godinez-Orta L (2006) Oceanography, sedimentology and acoustic mapping of a bryomol carbonate factory in the northern Gulf of California, Mexico. in: Pedley H.M, Carrannante, G., (Eds.) Cool-Water Carbonates: Depositional Systems and Palaeoenvironmental control. Geological Society, London, Special Publications, 255, 199-217.

Hetzinger, J, Halfar, J., Riegl, B., Godinez-Orta, L. (2006) Sedimentology and acoustic mapping of modern rhodolith beds on a non-tropical carbonate shelf (Gulf of California, Mexico). Journal of Sedimentary Research 76: 670-682.

Purkis SJ, Myint S, Riegl B (2006) Enhanced detection of the coral Acropora cervicornis using a contextural classifier. Remote Sensing of Environment 101: 82-94.

Rankey, E.C., Riegl, B., Steffen, K. (2006) Form, function and feedback in a tidally dominated ooid shoal, Bahamas. Sedimentology 53: 1191-1210.

Hernandez-Cruz LR, Purkis S, Riegl B (2006) Documenting decadal spatial changes in seagrass and Acropora palmata cover by aerial photography analysis in Vieques, Puerto Rico: 1937-2000. Bulletin of Marine Science 79(2): 401-414.

Vargas-Angel B, Riegl B, Gilliam D, Dodge RE (2006) An experimental histopathological rating scale of sediment stress in the Caribbean coral Montastrea cavernosa. Proceedings of the 10th International Coral Reef Symposium, Okinawa: 1168-1173.

Riegl B, Purkis SJ, Kohle K, Dodge RE (2006) Spatial patterns in Arabian Gulf coral assemblages (Jebel Ali, Dubai, U.A.E.) in response to temperature forcing. Proceedings of the 10th International Coral Reef Symposium, Okinawa: 683-687.

Purkis SJ, Riegl B, Dodge RE (2005) Fractal patterns of coral communities: evidence from remote sensing (Arabian Gulf, Dubai, UAE). Proc 10th Int Coral Reef Symp Okinawa, Japan June 28-July 2, 2004, 1753-1762.

Riegl B, Moyer RP, Morris LJ, Virnstein R, Purkis SJ (2005) Distribution and seasonal biomass of drift macroalgae in the Indian River Lagoon (Florida, USA) estimated with acoustic seafloor classification (QTCView, Echoplus). Journal of Experimental Marine Biology and Ecology 326: 89-104.

Purkis SJ, Riegl B, Andr´fou´t S (2005) Remote sensing of geomorphology and facies patterns on a modern carbonate ramp (Arabian Gulf U.A.E.) Journal of Sedimentary Research 75: 861-876.

Halfar J, Godinez-Orta L, Riegl B, Valdez-Holguin JE, Borges JM (2005) Living on the edge: high-latitude Porites carbonate production under temperate eutrophic conditions. Coral Reefs 24: 582-592.

Renegar DA, Riegl B (2005) Effect of nutrient enrichment and elevated CO2 partial pressure on growth rate of the Atlantic zooxanthellate coral Acropora cervicornis. Marine Ecology Progress Series 293: 69-75.

Moyer RP, Riegl B, Banks K, Dodge RE (2005) Assessing the accuracy of acoustic seabed classification for mapping coral reef environments in South Florida (Broward County, USA). Revista de Biologia Tropical (Suppl. 1): 175-184.

Riegl B, Moyer RP, Morris L, Virnstein R, Dodge RE (2005) Determination of the distribution of shallow-water sea grass and drift algae communities with acoustic seafloor discrimination. Revista de Biologia Tropical 53 (Suppl. 1): 165-174.

Riegl B, Purkis SJ (2005) Detection of shallow subtidal corals from IKONOS satellite and QTC View (50, 200 kHz) single-beam sonar data (Arabian Gulf; Dubai, UAE). Remote Sensing of Environment 95: 96-114

Purkis SJ, Riegl B (2005) Spatial and temporal dynamics of Arabian Gulf coral assemblages quantified from remote-sensing and in situ monitoring data (Jebel Ali, Dubai, U.A.E.). Marine Ecology Progress Series 287:99-113. Andr?fou?t S, Riegl B (2004) Remote sensing: a key tool for interdisciplinary assessment of coral reef processes. Coral Reefs 23(1): 1-4

Rezai H, Wilson S, Claereboudt M, Riegl B (2004) Coral reef status in the ROPME sea area: Arabian/Persian Gulf, Gulf of Oman and Arabian Sea. In: Wilkinson C (ed) Status of Coral Reefs of the World: 2004. Australian Institute of Marine Science, Townsville: 155-170.

Andr´fou´t S, Kramer P, Torres-Pulliza D, Joyce KE, Hochberg EJ, Garza-P´rez R, Mumby PJ, Riegl B, Yamano H, White WH, Zubia M, Brock JC, Phinn SR, Naseer A, Hatcher BG, Muller-Karger FE (2004) Multi-site evaluation of IKONOS data for classification of tropical coral reef Remote Sensing of Environment. View entire paper

R.P. Moyer, B. Riegl, K. Banks, R.E. Dodge (2003) Spatial patterns and ecology of benthic communities on a high-latitude South Florida (Broward . Coral Reefs (2003) 22: 447-464 View entire paper

Manfrino C, Riegl B, Hall JL, Graifman R (2003) Status of coral reefs of Little Cayman, Grand Cayman and Cayman Brac, British West Indies, in 1999 and 2000 (Part 1: stony corals and algae). Atoll Research Bulletin 496: 204-225.

Hoshino K, Brandt M, Manfrino C, Steiner SCC, Riegl B (2003) Assessment of the coral reefs of the Turks and Caicos Islands (Part 2: Fish). Atoll Research Bulletin 496: 480-499

Riegl B, Manfrino C, Hermoyian C, Brandt M, Hoshino K (2003) Assessment of the coral reefs of the Turks and Caicos Islands (Part 1: Stony corals and algae). Atoll Research Bulletin 496: 460-479.

Riegl B (2003) Global climate change and coral reefs: different effects in two high latitude areas (Arabian Gulf, South Africa). Coral Reefs 22(3): View entire paper

Piller WE, Riegl B (2003) Vertical versus horizontal growth strategies of coral frameworks. International Journal of Earth Science 92(4):511-519 View entire paper

Riegl B, Piller WE (2003) Possible refugia for reefs in times of environmental stress. International Journal of Earth Science 92(4):520-531 View entire paper

Riegl B, Antonius A (2003) Halofolliculina skeleton eroding band (SEB): a coral disease with fossilization potential? Coral Reefs 22(1): 48

Riegl B, Piller WE (2002) Upwelling areas as possible refugia in times of rising SST? Further evidence from the Caribbean and Indian Oceans. Proceedings of the 9th International Coral Reef Symposium, Bali, Volume 1: 315-320

Riegl B, Piller WE (2002) Reefs and coral carpets in the Miocene Paratethys (Badenian, Leitha Limestone, Austria). Proceedings of the 9th International Coral Reef Symposium, Bali, Volume 1: 211-216

Riegl B (2002) Phoenix from the ashes? Repetitive mass mortality and the biogeology of southern Arabian Gulf (United Arab Emirates) coral systems. In Bright M, Dworschak PC, Stachowitsch M (eds) The Vienna Scool of Marine Biology. A Tribute to Joerg Ott. Facultas, Vienna: 137-159 View entire paper

Riegl B, Moyer RP, Andrefouet S (2002) Integration of satellite remote-sensing of subtidal habitats with vessel-based video survey (Dubai, UAE, Arabian Gulf). Proceedings of the 7th International Conference on Remote-Sensing in Coastal and Marine Habitats, Miami (on CD)

Moyer RP, Riegl B, Dodge RE, Walker BK, Gilliam D (2002) Acoustic remote-sensing of reef benthos in Broward County, Florida (USA). Proceedings of the 7th International Conference on Remote-Sensing in Coastal and Marine Habitats, Miami (on CD)

Walker BK, Riegl B, Dodge RE, Moyer RP (2002) Integration of remotely-sensed optical and acoustic data for the delineation of reef-lines in Broward County, Florida (USA). Proceedings of the 7th International Conference on Remote-Sensing in Coastal and Marine Habitats, Miami (on CD)

Hubmann, B., Piller W.E. & B. Riegl (2002) Functional morphology of coral shape and passive hydrodynamic self-righting in Recent Manicinia areolata. Senckenbergiana lethaea 82(1): 125-130 View entire paper

Rasser, M. & Riegl, B. (2002) Holocene coral reef rubble and its binding agents. Coral Reefs 21(1): 57-72. View entire paper

Riegl, B. (2002) Effects of the 1996 and 1998 positive sea-surface temperature anomalies on corals, coral diseases and fish in the Arabian Gulf (Dubai, UAE). Marine Biology140: 29-40 View entire paper

Kirschner AKT, Riegl B, Velimirov B (2001) Degradation of emergent and submerged macrophytes in an oxbow lake of an embanked backwater system: implications for the terrestrialization process. International Revue of Hydrobiology 86(4-5): 555-571

Riegl, B. & W.E. Piller (2001) "Cryptic" tissues inside Acropora frameworks: a mechanism to enhance in tissue survival in hard times while also enhancing framework density. Coral Reefs 5(1): 67-68 View entire paper

Hubmann, B., W.E Piller,. & B. Riegl (2001) Manicina areolata (Linne 1758) a coral with relevant palecological strategies. Geologica Saxonica 46/47: 181-187.

Riegl, B. (2001) Inhibition of reef framework by frequent disturbance: examples from the Arabian Gulf, South Africa, and the Cayman Islands. Palaeogeography, Palaeoclimatology, Palaeoecology 175(1-1): 79-102 View entire paper

Riegl, B. & J. Schaffelner (2001) Soft coral mimesis by an aeolidiid nudibranch. Coral Reefs 19(5): 66 View entire paper

Riegl, B. (2001) Degradation of reef structure, coral and fish communities in the Red Sea by ship groundings and dynamite fisheries. Bulletin of Marine Science 69(2): 595-611.

Riegl, B. (2000) Aspects of the biogeology and environmental geology of Cenozoic coral reefs. Habilitationsschrift, Karl-Franzens-Universit?t Graz, 1-192.

Riegl, B. & W.E. Piller (2000) Biostromal coral facies - a Miocene example from the Leitha Limestone (Austria) and its actualistic interpretation. Palaios 15: 399-413. View entire paper

Riegl, B., J.L. Korrubel and C. Martin. 2001. Mapping and monitoring of coral communities and their spatial patterns using a surface-based video method from a vessel. Bulletin of Marine Science 69(2): 869-880. View entire paper

Riegl, B. & W.E. Piller (2000) Reefs and coral carpets in the northern Red Sea as models for organism - environment feedback in coral communities and its reflection in growth fabrics. In: Insalaco E., Skelton P.W., Palmer T.J. (eds). Carbonate platform systems: components and interactions. Geological Society Special Publication 178: 71-88. View entire paper

Riegl, B. & Piller, W. E. (2000). Benthos-mapping: applications in environmental geology and resource management (Red Sea, Egypt). Journal of African Earth Sciences 30 (4A): 74-75.

Riegl, B. & W.E. Piller (2000) Mapping of reefs and associated biota in northern Safaga Bay (Red Sea, Egypt): a tool for proactive management. Aquatic Conservation: Marine and Freshwater Ecosystems 10: 127-140. View entire paper

Riegl, B. & W.E. Piller (1999) Coral frameworks revisited: reefs and coral carpets in the northern Red Sea. Coral Reefs 18(3): 241-254. View entire paper

Jameson, S.C., M.S.A. Ammar, E. Saadalla, H.M. Mostafa, & B. Riegl (1999) A coral damage index and its application to diving sites in the Egyptian Red Sea. Coral Reefs 18(4): 333-340. View entire paper

Riegl, B. (1999) Coral in a non-reef setting in the southern Arabian Gulf (Dubai, UAE): fauna and community structure in response to recurrent mass mortality. Coral Reefs 18(1): 63-73. View entire paper

Riegl, B. & K.E. Luke (1998) Ecological characteristics of dynamited reefs in the northern Red Sea and their relevance to reef rehabilitation. Marine Pollution Bulletin 37(8-12): 488-498. View entire paper

Riegl, B. (1998) A new reef marine reserve in the southern Arabian Gulf: Jebel Ali, Dubai (UAE). Coral Reefs 17(4): 398. View entire paper

Antonius A. & B. Riegl (1998) Coral diseases and Drupella cornus invasion in the northern Red Sea. Coral Reefs 17(1): 84. View entire paper

Korrubel, J. & B. Riegl (1998) A new coral disease from the Arabian Gulf. Coral Reefs 17(1): 35. View entire paper

Antonius, A. & B. Riegl (1997) A possible link between coral diseases and a corallivorous snail (Drupella cornus) outbreak in the Red Sea. Atoll Research Bulletin 48: 1-12.

Riegl, B. & W.E. Piller (1997) Distribution and environmental control of coral associations in northern Safaga Bay, Red Sea, Egypt. Facies 36: 141-162, pls 38-45. View entire paper

Riegl, B. & A. Riegl (1996) Studies on coral community structure as basis for marine reserve zonation. Biological Conservation 77 (2-3): 269-277. View entire paper

Riegl, B., C. Heine & G.M. Branch (1996) The function of funnel-shaped coral-growth in a high-sedimentation environment. Marine Ecology Progress Series 145: 87-94. View entire paper

Riegl, B. & A. Riegl (1996) How episodic coral breakage can determine community structure: a South African coral reef example. P.S.Z.N.I. Marine Ecology 17 (1-3): 399-410. View entire paper

Riegl, B., W.E. Piller & M. Rasser (1996) Rolling stones: first record of an Acropora anthocercis (Brook) corallith from the northern Red Sea. Coral Reefs 15(3):149-150. View entire paper

Riegl, B. (1996) Corals of the South-west Indian Ocean IV. The hard coral family Faviidae Gregory, 1900 (Scleractinia:Faviina). Investigational Reports of the Oceanographic Research Institute, Durban, No 70: 1-47.

Riegl, B. (1996) The hermatypic coral fauna of subtropical South-East Africa - a check-list. Pacific Science 50(4): 404-414.

Riegl, B. & P.A. Cook. (1995) Is coral community structure linked to damage susceptibility? A case study from South Africa. Beitr?ge zur Pal?ontologie 20, Proceedings of the 1st European Regional Meeting of the International Society for Reef Studies: 51-63. View entire paper

Riegl, B. & J.P. Bloomer (1995) Tissue damage in scleractinian and alcyonacean corals due to experimental exposure to sedimentation. Beitr?ge zur Pal?ontologie 20, Proceedings of the 1st. European Regional Meeting of the International Society for Reef Studies: 65-73. View entire paper

Riegl, B. & G.M. Branch. (1995) Effects of sediments on the energy budgets of four scleractinian (Bourne, 1900) and five alcyonacean (Lamouroux, 1816) corals. Journal of Experimental Marine Biology and Ecology 186: 259-275. View entire paper

Riegl, B. (1995) Effects of sand deposition on scleractinian and alcyonacean corals. Marine Biology 121(3): 517-526. View entire paper

Riegl, B., M.H. Schleyer, P.J. Cook & G.M. Branch (1995) The structure of Africa's southernmost reef coral communities. Bulletin of Marine Science 56(2): 676-691. View entire paper

Riegl, B. (1995) A revision of the hard coral genus Acropora Oken, 1815 (Scleractinia: Astrocoeniina: Acroporidae) in South East Africa. Zoological Journal of the Linnean Society 113: 249-288.

Riegl, B. (1995) Description of four new species in the hard coral genus Acropora Oken, 1815 (Scleractinia: Astrocoeniina: Acroporidae) from South East Africa. Zoological Journal of the Linnean Society 113: 229-247. View entire paper

Riegl, B. & B. Velimirov (1994) The structure of coral communities at Hurghada in the northern Red Sea. P.S.Z.N.I. Marine Ecology 15(3/4): 213-233. View entire paper

Riegl, B. (1993) Taxonomy and ecology of South African reef corals. PhD thesis, University of Cape Town: I-VI, 1-494.

Riegl, B. & B. Velimirov (1991) How many damaged corals in Red Sea reef systems? A quantitative survey. Hydrobiologia 216/217: 249-256. View entire paper

Riegl, B. (1989) Gesellschaftsstruktur von Steinkorallen (Scleractinia) an Riffen des n´rdlichen Roten Meeres. MSc thesis, University of Vienna: 1-116.

Abstracts

Riegl B, Moyer RP, Morris L, Virnstein R, Dodge RE, Macintosh G (2003) Determination of the distribution of shallow-water segrass and drift algae communities with acoustic remote sensing. 31st Scientific Meeting of the Association of Marine Laboratories of the Caribbean, Port of Spain:72

Moyer RP, Riegl B, Dodge RE (2003) Accuracy assessment of acoustic remote-sensing data from a South Florida (Broward County, USA) coral reef system. 31st Scientific Meeting of the Association of Marine Laboratories of the Caribbean, Port of Spain:135

Moyer RP, Riegl B (2002) Determination of different benthic reef communities in Broward County, Florida (USA) using acoustic remote-sensing and in situ techniques. International Society of Reef Studies, European Meeting, Cambridge UK: 81

Riegl B (2002) Extreme climatic events and high-latitude reef-building: what consequences from global climatic change? International Society of Reef Studies, European Meeting, Cambridge UK: 81

Clayton T, Brock J, Currie R, Boss E, Riegl B, Macintosh G, Dodge RE (2002) Remote sensing for coral reef studies: testing the waters at Biscayne National Park. Proceedings of the 2002 Annual Meeting of the Geological Society of America: 200-10

Riegl B, Piller WE, An E, Fairbanks R, Dodge RE, Coulson RE (2002) Geobiotech: Multiplatform investigations into the history, geological and biological consequences of reef building in Broward County (FL, USA). Proceedings of the 2002 Annual Meeting of the Geological Society of America: 119-1

Dodge RE, Walker BK, Riegl B, Moyer RP (2002) Mapping of drowned reefs in Broward County, Florida (USA) by remotely sensed optical and acoustic data. American Geophysical Union, Oceans 2002, Hawaii

Moyer RP, Riegl B, Dodge RE, Walker BK (2002) Acoustic detection of different types of reef benthos in Broward County, Florida (USA). American Geophysical Union, Oceans 2002, Hawaii

Riegl B, Moyer R, Andrefouet S, Dodge RE (2002) Carbonate facies off Dubai, Arabian Gulf: remote-sensing of Ikonos satellite images and ground-truthing by vessel-based video survey. American Geophysical Union, Oceans 2002, Hawaii

Piller WE, Riegl B. (2001) Upwelling and topography - protection mechanisms for reef biota under stress. GSA annual meeting Boston.

Riegl, B. & Piller, W.E. (2001) Upwelling areas and coral carpets: possible refugia for reef biota during times of global warming. ). Schriftenreihe der Deutschen Geologischen Gesellschaft 14: 166-167

Piller, W.E. & Riegl, B. (2001) Initiation, termination - what next? Resilience of a biostromal coral framework (Bali, Indonesia). Schriftenreihe der Deutschen Geologischen Gesellschaft 14: 152

Greiss M, Riegl B, Piller WE (2000) Taphonomische Veraenderung and Korallenskeletten nach einem Massensterben im Arabischen Golf. Sedimentologentreffen, Leoben

Greiss, M. & B. Riegl (2000) Taphonomic alteration of branching coral skeletons following a mass mortality event in the Arabian Gulf. 9th International Coral Reef Symposium, Bali: 254

Riegl, B. & W.E. Piller (2000) Small-scale upwelling as a control for reef heath and frameworks. Preliminary findings from the Bahamas and the Arabian Sea. 9th International Coral Reef Symposium, Bali: 77

Riegl, B. (2000) Ecological and framebuilding consequences of the 1996 coral mass mortality event in the Arabian Gulf (Dubai, UAE). 9th International Coral Reef Symposium, Bali: 265

Piller, W.E., B. Hubmann, & B. Riegl (2000) Hydrodynamic self-righting in Manicina areolata, a strategy with palecological significance. 9th International Coral Reef Symposium, Bali: 51

Riegl, B. & Piller W. E. (2000) Miocene biostromal coral facies (Leitha Limestone, Austria) - low diversity coral carpets and their actualistic interpretation. 9th International Coral Reef Symposium, Bali: 52

Riegl, B. & W. E. Piller (2000) Coral framestone switch-on and switch-off sequences - indicators for thermal instability in a peripheral Paratethyan ocean basin (Eisenstadt basin, Austria)? 31stInternational Geological Conference, Rio de Janeiro (Abstract on CD).

Piller, W.E. & B. Riegl. (2000) Reefs and upwelling - two incompatible systems? Mitteilungen der Gesellschaft der Geoogie und. Bergbau Studenten

Hubmann, B., W.E. Piller & B. Riegl (2000) Manicina areaolata (LINN- 1758), ein Schl´ssel zum Verst´ndnis fossiler "solit´rer" Korallen? Schriften des Staatlichen Museums f´r Mineralolgie und Geologie zu Dresden 11: 80

Manfrino C, Riegl B, Pattengill-Semmens CV, Hall JL, Semmens B, Hoshino K, Graifman R, Hermoyian C (2000) Status of reefs in the Cayman Islands. 9th International Coral Reef Symposium, Bali: 359

Hoshino K, Manfrino C, Riegl B, Steiner SCC (2000) Status of fish communities in the Turks and Caicos Islands: results from the Atlantic and Gulf Rapid Reef Assessment. 9th International Coral Reef Symposium, Bali: 357

Hoshino K, Manfrino C, Riegl B (2000) Gorgonian and scleractinian coral communities of the Turks and Caicos Islands. 9th International Coral Reef Symposium, Bali: 311

Manfrino C, Riegl B, Hoshino K, Steiner SCC (2000) Status of reefs in the Turks, Caicos and Mouchoir banks. 9th International Coral Reef Symposium, Bali: 236

Ginsburg RN, Alcolado P, Arias E, Bruckner A, Claro R, Curran A, Deschamps A, Fonseca A, Feingold J, Garcia-Saez C, Gilliam D, Gittings S, Glasspool A, Horta-Puga G, Klomp K, Kramer PA, Kramer PR, Leao Z, Lang J, Manfrino C, Nemeth R, Pattengill-Semmens C, Peckol P, Posada J, Riegl B, Robinson J, Sale P, Steneck R, Vargaz J, Villamizar E (2000) Status of Caribbean reefs: initial results from the Atlantic and Gulf Rapid Reef Assessment. 9th International Coral Reef Symposium, Bali: 211

Riegl, B. (1999) Recurrent coral mass mortality explains absence of framework in an area with rich coral growth (recent Arabian Gulf. in: Camoin GF, Dullo WC (eds) Paleoceanology of reefs and carbonate platforms: Miocene to modern. Abstract book. Publication ASF No. 32: 181

Riegl, B. & W. E. Piller, (1999) Influence of bottom topography and coral community structure on framework production: reefs and coral carpets in the northern Red Sea. Lyell Meeting: Organism-Environment feedback in carbonate platforms and reefs: 22

Riegl, B. and P. Kramer (1999) Rapid, large-scale reef surveys for monitoring and management: lessons from the Indian Ocean and the Bahamas. In: Thomas, J.D., Dodge, R. (eds) Scientific Aspects of Coral Reef Assessment, Monitoring and Restoration, Abstract Book, National Coral Reef Institute: 163

Riegl, B. (1999) Patterns in reef structure, coral and fish communities, and their degradation in the Red Sea - implications for management and restoration. In: Thomas, J.D., Dodge, R. (eds) Scientific Aspects of Coral Reef Assessment, Monitoring and Restoration, Abstract Book, National Coral Reef Institute: 162

Riegl, B & K.E. Luke (1998) Rapid Ecological Assessment (REA) protocol for reef quality assessment in the northern Red Sea. 1st AGRA Workshop, RSMAS Miami

Riegl, B. & W.E. Piller (1998) Reef mapping, monitoring, and sensitivity analysis in the northern Red Sea (Safaga Bay, Ras Banas, Egypt) and the Arabian Gulf (Dubai, UAE). 1st AGRA Workshop, RSMAS Miami

Riegl, B. (1998) Developers, divers, dynamite: man-made changes and an uncertain future for Red Sea coral reefs. American Zoologist 37(5): 12A

Riegl, B. & W.E. Piller (1997) Corallite variability in recent Porites: implications for fossil identification. Boletin de la Real Sociedad de Espana (Historia Natural), Proceedings of the 6th International Conference on fossil Cnidaria and Porifera: Vol.91 (1-4): 305-316.1. Riegl, B. (1994) The hermatypic coral fauna of subtropical south-east Africa. Publications du Service Geologique du Luxembourg, Vol XXIX. Proceedings of the 2nd. European Regional Meeting of the International Society for Reef Studies: 15

Riegl, B. & W.E. Piller (1996) Sediment transport in northern Safaga Bay (Red Sea, Egypt) as a mechanism for coral community differentiation. 8th International Coral Reef Symposium, Panama:165

Riegl, B. (1996) Corals and sediment: mechanisms of interference. 8th International Coral Reef Symposium, Panama: 165

Riegl, B. (1995) Paleo-ecological implications of coral shape. 6th Int. Conf. Coeleneterate Biology, Noordwijkerhout: 82

Riegl, B. (1995) Is coral shape a reliable paleo-environmental indicator? 7th Int. Symposium on Fossil Cnidaria and Porifera, Madrid: 71

Riegl, B. & W.E. Piller (1995) Within-colony variability of calyx characteristics. Porites cf. lutea Edwards & Haime, 1860 from the Red Sea. 6th Int. Conerence on Coeleneterate Biology, Noordwijkerhout: 83

Riegl, B. & W.E. Piller (1995) Variability of calyx characteristics in Recent Porites: implications for fossil identification. 7th Int. Symposium on Fossil Cnidaria and Porifera, Madrid: 72

Riegl, B. & A. Riegl (1994) Coral breakage on reefs - a problem for management? Publications du Service Geologique du Luxembourg, Vol XXIX. Proceedings of the 2nd. European Regional Meeting of the International Society for Reef Studies: 241

Riegl, B. & A. Riegl (1994) How episodic coral breakage can determine community structure: a South African coral reef example. 29th European Marine Biology Symposium, Vienna: 41 View entire paper

Riegl. B., & J.P. Bloomer (1993) Tissue damage in hard and soft corals due to experimental exposure to long-term sedimentation: preliminary results. 1st European Regional Meeting of the International Society for Reef Studies. Vienna: 53

Riegl, B. & P.A. Cook (1993) Conservation status and management of South African coral reefs. 1st European Regional Meeting of the International Society for Reef Studies. Vienna: 54

Odendaal FJ, C. Kremen, V. Ramafimahatratra, P.A.R. Hockey & B. Riegl (1993) Marine exploitation on the Masoala peninsula, Madagascar: the status of reefs and lagoons and potential solutions. Proceedings of the. 8th South African Maine Science Symposium

Schleyer M.H., A. Kruger, B. Riegl & Y. Benayahu (1993) Natal coral reefs: a case for monitoring climate change. Proeedings of the. 8th South African Maine Science Symposium