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Dissertations
Dissertations Table of Contents
- Precipitation
- Kelvin Waves
- Numerical Models
- Fisheries
- Upwelling
- Indian Ocean
- Tropical Pacific Ocean Variability
- Alaska
- Phytoplankton
- Satellite Observation
- Coral Bleaching
El Niño and:
Other Resources:
El Niño and Precipitation
- Large-Scale Variability Of Tropospheric Moisture And Climatic Implications
- Gershunov, Alexander
- (Ph.D.)--University Of California, Santa Barbara, 1996
- Global Precipitation Variability And Its Relationship With Other Climate Changes (Global Hydrological Cycle, Carbon Cycle)
- Dai, Aiguo
- (Ph.D.)--Columbia University, 1996
- The Characteristics Of The Atmospheric Components Of Tropical Hydrological Cycle As Determined From Satellite (El Nino, Remote Sensing)
- Sheu, Rong-Shyang
- (Ph.D.)--University Of Colorado At Boulder, 1995
- Long-Wave Circulation Patterns Associated With Winter-Time Precipitation Departures Over Western North America (Southern Oscillation)
- Brown, Timothy Joseph
- (Ph.D.)--University Of Colorado At Boulder, 1995
- Extended Range Forecasting And Enso Effects In The Corn Belt
- Todey, Dennis Patrick
- (Ph.D.)--Iowa State University, 1995
- Characterization Of Palmer Drought Index As A Predictor For Drought Mitigation (Water Resources, El Nino)
- Lohani, Vinod K.
- (Ph.D.)--Virginia Polytechnic Institute And State University, 1995
- Proxy Records Of The Indonesian Low And The El Nino-Southern Oscillation (Enso) From Stable Isotope Measurments Of Indonesian Reef Corals
- Moore, Michael Donald
- (Ph.D.)--University Of California, Berkeley, 1995
- Annual And Interannual Variability Of Convection Over Tropical South America, 1980-1989 (Climatic Variability)
- Pulwarty, Roger Surrendranath
- (Ph.D.)--University Of Colorado At Boulder, 1994
- Rainfall Estimation From Esmr-5 Measurements And Application To Climate Studies (Pacific Ocean, El Nino)
- Lim, Hyo-Suk
- (Ph.D.)--Texas A&M University, 1993
- Late Cenozoic Stratigraphy And Soil Geomorphology Of The Peruvian Desert, 3 Degrees-18 Degrees S: A Long-Term Record Of Hyperaridity And El Nino
- Noller, Jay Stratton
- (Ph.D.)--University Of Colorado At Boulder, 1993
- Effect Of The El Nino/Southern Oscillation On Gulf Of Mexico, Winter, Frontal-Wave Cyclones: 1960-1989. (Volumes I And Ii)
- Manty, Rosemary Eileen
- (Ph.D.)--The Louisiana State University And Agricultural And Mechanical Col., 1993
- On Mechanisms That Drive Walker Type Circulations Within The Context Of A General Circulation Model
- Avila, Lixion Armando
- (Ph.D.)--University Of Miami, 1993
- Estimation And Analysis Of Climate-Scale Rainfall Over The Tropical Pacific (Rainfall, Pacific Ocean)
- Berg, Wesley Keith
- (Ph.D.)--University Of Colorado At Boulder, 1993
- United States Streamflow Patterns Associated With The Extreme Phases Of The Southern Oscillation (Hydroclimatology)
- Kahya, Ercan
- (Ph.D.)--University Of California, Los Angeles, 1993
- Interannual-Decadal Variability In Tropical Climate Systems: Stable Isotope Records And General Circulation Model Experiments (Paleoclimatology, Corals)
- Cole, Julia Ellen
- (Ph.D.)--Columbia University, 1992
- Hydroclimatic Variability In The Rocky Mountain Region
- Changnon, David
- (Ph.D.)--Colorado State University, 1991
- Gershunov, Alexander
El Niño And Kelvin Waves
- A Study Of El Nino Events Along The British Columbia Coast
- Robert, Marie
- (M.Sc.)--Mcgill University (Canada), 1993
- Numerical, Analytical, And Observational Studies Of Tropical Ocean-Atmosphere Interactions (Continental Heating, Surface Heat)
- Wang, Chunzai
- (Ph.D.)--University Of South Florida, 1995
- Water Displacements And Trajectories In The Western Pacific Warm Pool Region During The 1982-1983 El Nino
- Balena, Rex Barretto
- (Ph.D.)--University Of Hawaii, 1992
- Ocean Wave Detection Using Satellite Altimetry
- Dayyani, Mohammad Basel
- (Ph.D.)--University Of Colorado At Boulder, 1992
- Seasonal And Interannual Variability In The Tropical Pacific Ocean (Seasonal Variability)
- Chao, Yi
- (Ph.D.)--Princeton University, 1990
- Observations Of Long Rossby Waves In The Northern Tropical Pacific
- Kessler, William Samuel
- (Ph.D.)--University Of Washington, 1989
- Dynamics And Thermodynamics Of Interannual Variability In The Tropical Atmosphere/Ocean System
- Battisti, David Stephen
- (Ph.D.)--University Of Washington, 1988
- Mechanisms Of Equatorial Anomalies In Dynamical Coupled Ocean-Atmosphere Models
- Hirst, Anthony Churchill
- (Ph.D.)--The University Of Wisconsin - Madison, 1986
- Wind-Driven Variability Of The Tropical Pacific And Atlantic Oceans
- Busalacchi, Antonio James, Jr
- (Ph.D.)--The Florida State University, 1982
- Large-Scale, Long Period Ocean-Atmosphere Interactions In The North Pacific Region
- Michaelsen, Joel Christian
- (Ph.D.)--University Of California, Berkeley, 1982
- Robert, Marie
El Niño And Numerical Models
- On The Interaction Among The Extratropical Atmospheric Transients Of Different Frequencies (El Nino)
- Lin, Hai
- (Ph.D.)--Mcgill University (Canada), 1995
- Predictable And Unpredictable Elements Of The Northern Wintertime 500-Mb Height Field (Five Hundred Mb Height Field, Atmospheric Dynamics)
- Renwick, James Arthur
- (Ph.D.)--University Of Washington, 1995
- The Energetics Of Interannual Variability In The Tropical Pacific Ocean (El Nino, La Nina)
- Goddard, Lisa
- (Ph.D.)--Princeton University, 1995
- Numerical, Analytical, And Observational Studies Of Tropical Ocean-Atmosphere Interactions (Continental Heating, Surface Heat)
- Wang, Chunzai
- (Ph.D.)--University Of South Florida, 1995
- Data Assimilation For Interannual Climate Change Prediction (El Nino)
- Hao, Zheng
- (Ph.D.)--University Of California, Los Angeles, 1994
- Numerical Modeling Studies Of The El Nino-Southern Oscillation (El Nino, Southern Oscillation, Delayed Oscillator)
- Mantua, Nathan John
- (Ph.D.)--University Of Washington, 1994
- A Coupled Atmosphere-Ocean Model In The Tropics With Various Climatological Backgrounds (Pacific Ocean, El Nino)
- Yang, Jiayan
- (Ph.D.)--The Florida State University, 1991
- A Study Of El Nino/Southern Oscillation: Numerical Experiments And Data Analysis (Southern Oscillation)
- Ahn, Joong Bae
- (Ph.D.)--Oregon State University, 1990
- The Tropical Pacific Ocean's Heat Budget During A Cold Event, From A Numerical Model (El Nino, La Nina)
- Smith, Thomas Michael
- (Ph.D.)--University Of Delaware, 1990
- Global Monitoring Of Net Solar Irradiance At The Ocean Surface Using Nimbus-7 Satellite Data
- Chertock, Beth
- (Ph.D.)--University Of California, San Diego, 1989
- Equatorial Pacific Sediments: A Chemical Approach To Ocean History
- Price, Barbara Ann
- (Ph.D.)--University Of California, San Diego, 1988
- Dynamics And Thermodynamics Of Interannual Variability In The Tropical Atmosphere/Ocean System
- Battisti, David Stephen
- (Ph.D.)--University Of Washington, 1988
- Topics On Equatorial Responses To Spatially And Temporally Varying Zonal Wind Stress
- Tang, Tswen-Yung David
- (Ph.D.)--North Carolina State University, 1984
- Lin, Hai
El Niño And Fisheries
- A Study Of El Nino Events Along The British Columbia Coast
- Robert, Marie
- (M.Sc.)--Mcgill University (Canada), 1993
- The Behavioral Ecology And Population Dynamics Of The Intertidal Fishes Of The Northeast Pacific (Oligocottus Maculosus, Pacific Ocean)
- Chotkowski, Michael Anthony
- (Ph.D.)--University Of California, Los Angeles, 1994
- A Bioenergetics Analysis Of Yellowfin Tuna (Thunnus Albacares) Predation In The Eastern Pacific Ocean (Tuna)
- Olson, Robert James
- (Ph.D.)--The University Of Wisconsin - Madison, 1990
- Feeding Ecology Of And Food Consumption By Juvenile Salmon In Coastal Waters, With Implications For Early Ocean Survival (Salmon)
- Brodeur, Richard David
- (Ph.D.)--University Of Washington, 1990
- Marsh:Water Column Interactions In Two Louisiana Estuaries. Flux Measurements And Conceptual Implications
- Childers, Daniel Louis
- (Ph.D.)--The Louisiana State University And Agricultural And Mechanical Col., 1989
- Abundance In Space And Time Of Lanternfishes Of The Genus Triphoturus (Myctophidae) In The Pacific Ocean
- Imsand, Shirley
- (Ph.D.)--University Of California, San Diego, 1982
- Robert, Marie
El Niño And Upwelling
- Optically-Determined Particle Distribution, Production, And
The El Nino Effect In The Equatorial Pacific
(Prochlorococcus, Synechococcus)
- Chung, Sung Pyo
- (Ph.D.)--Texas A&M University, 1996
- Origin And Maintenance Of High Nitrate Condition In The Equatorial Pacific, A Biological-Physical Model Study (Iron Limitation, Plankton)
- Chai, Fei
- (Ph.D.)--Duke University, 1995
- Micro-Facies Analysis Of Late Quaternary Peruvian Upwelling Sediments
- Brodie, Ian Raymond Alexander
- (Ph.D.)--University Of Southampton (United Kingdom), 1994
- Migratory And Reproductive Behavior Of The Olive Ridley Turtle, Lepidochelys Olivacea (Eschscholtz, 1829), In The Eastern Pacific Ocean
- Plotkin, Pamela Terry
- (Ph.D.)--Texas A&M University, 1994
- The Physical Oceanography And Ecology Of Upwelling Shadows (Cancer Gracilis)
- Graham, William Montrose
- (Ph.D.)--University Of California, Santa Cruz, 1994
- Sedimentological And Geochemical Study Of The Late Eocene To Early Oligocene Yumaque Formation, East Pisco Basin, Peru
- Frantz, Erika Lee
- (M.A.)--Rice University, 1993
- Feeding Ecology Of And Food Consumption By Juvenile Salmon In Coastal Waters, With Implications For Early Ocean Survival (Salmon)
- Brodeur, Richard David
- (Ph.D.)--University Of Washington, 1990
- Observations Of Long Rossby Waves In The Northern Tropical Pacific
- Kessler, William Samuel
- (Ph.D.)--University Of Washington, 1989
- Physical And Biological Patterns During El Nino And Non-El Nino Episodes In The California Current
- Fargion, Giulietta Sara
- (Ph.D.)--University Of California, San Diego, 1989
- Equatorial Pacific Sediments: A Chemical Approach To Ocean History
- Price, Barbara Ann
- (Ph.D.)--University Of California, San Diego, 1988
- Dynamics And Thermodynamics Of Interannual Variability In The Tropical Atmosphere/Ocean System
- Battisti, David Stephen
- (Ph.D.)--University Of Washington, 1988
- Mechanisms Of East African Rainfall Variability
- Nyenzi, Buruhani Salum
- (Ph.D.)--The Florida State University, 1988
- Ocean Variability And Phytoplankton Community Structure
- Chavez, Francisco Pedro
- (Ph.D.)--Duke University, 1987
- The Oceanography Of The Namibian Shelf
- Boyd, Alan John
- (Ph.D.)--University Of Cape Town (South Africa), 1987
- High Resolution Paleoclimatology From The Varved Sediments Of The Gulf Of California (Enso; Diatoms)
- Baumgartner, Timothy Robert
- (Ph.D.)--Oregon State University, 1987
- Comparison Of The Early Life History Parameters Of Pacific Sardine And Northern Anchovy And Implications For Species Interactions
- Butler, John Lawton
- (Ph.D.)--University Of California, San Diego, 1987
- Stable Isotope Profiles Of Hermatypic Corals: Indicators Of Changing Environmental Conditions In Upwelling And Non- Upwelling Regions Of The Eastern Tropical Pacific (El Nino, Pavona Gigantea, Clavus, Gulf Of Panama, Gulf Of Chiriqui)
- Minnis, Steffi Ann
- (M.A.)--Rice University, 1986
- Satellite Observations Of Phytoplankton Variability In The Eastern Equatorial Pacific (Upwelling, Primary Production)
- Feldman, Gene Carl
- (Ph.D.)--State University Of New York At Stony Brook, 1985
- Topics On Equatorial Responses To Spatially And Temporally Varying Zonal Wind Stress
- Tang, Tswen-Yung David
- (Ph.D.)--North Carolina State University, 1984
- Biostratigraphic And Paleoceanographic Reconstruction Of The Late Miocene In Baja California And Tres Marias Islands, Mexico
- Perez Guzman, Ana Maria
- (Ph.D.)--Rice University, 1983
- Low Frequency Sea Level Variability Along The West Coast Of North America
- Chelton, Dudley Boyd, Jr.
- (Ph.D.)--University Of California, San Diego, 1980
- Large-Scale Biological Events In The California Current: The Low-Frequency Response Of The Epipelagic Ecosystem
- Bernal, Patricio Arturo
- (Ph.D.)--University Of California, San Diego, 1980
- Radiocarbon In Annual Coral Rings Of The Pacific And Atlantic Oceans
- Druffel, Ellen Mary
- (Ph.D.)--University Of California, San Diego, 1980
- Chung, Sung Pyo
El Niño And Indian Ocean
- Proxy Records Of The Indonesian Low And The El Nino-Southern
Oscillation (Enso) From Stable Isotope Measurments Of
Indonesian Reef Corals
- Moore, Michael Donald
- (Ph.D.)--University Of California, Berkeley, 1995
- Rainfall Estimation From Esmr-5 Measurements And Application To Climate Studies (Pacific Ocean, El Nino)
- Lim, Hyo-Suk
- (Ph.D.)--Texas A&M University, 1993
- Monsoon-Enso Relationships (Enso, Pacific Ocean, Indian Ocean)
- Wainer, Ilana Elazari Kein Coaracy
- (Ph.D.)--The Pennsylvania State University, 1991
- Southern Oscillation Simulation In Coupled Ocean/Atmosphere Global Climate Models
- Sperber, Kenneth Robert
- (Ph.D.)--State University Of New York At Stony Brook, 1989
- The Relationship Between Intraseasonal Disturbance Activity And Interannual Variation Of The Tropical Atmosphere (El Nino)
- Wang, Xueliang
- (Ph.D.)--University Of Hawaii, 1988
- Dynamics And Thermodynamics Of Interannual Variability In The Tropical Atmosphere/Ocean System
- Battisti, David Stephen
- (Ph.D.)--University Of Washington, 1988
- Mechanisms Of East African Rainfall Variability
- Nyenzi, Buruhani Salum
- (Ph.D.)--The Florida State University, 1988
- Statistical Models Of Pacific Ocean Sea Surface Temperatures (El Nino)
- Graham, Nicholas Earl
- (Ph.D.)--University Of California, Santa Barbara, 1986
- Moore, Michael Donald
El Niño And Tropical Pacific Ocean Variability
- The Energetics Of Interannual Variability In The Tropical
Pacific Ocean (El Nino, La Nina)
- Goddard, Lisa
- (Ph.D.)--Princeton University, 1995
- Proxy Records Of The Indonesian Low And The El Nino-Southern Oscillation (Enso) From Stable Isotope Measurments Of Indonesian Reef Corals
- Moore, Michael Donald
- (Ph.D.)--University Of California, Berkeley, 1995
- Numerical, Analytical, And Observational Studies Of Tropical Ocean-Atmosphere Interactions (Continental Heating, Surface Heat)
- Wang, Chunzai
- (Ph.D.)--University Of South Florida, 1995
- Annual And Interannual Variability Of Convection Over Tropical South America, 1980-1989 (Climatic Variability)
- Pulwarty, Roger Surrendranath
- (Ph.D.)--University Of Colorado At Boulder, 1994
- Data Assimilation For Interannual Climate Change Prediction (El Nino)
- Hao, Zheng
- (Ph.D.)--University Of California, Los Angeles, 1994
- Numerical Modeling Studies Of The El Nino-Southern Oscillation (El Nino, Southern Oscillation, Delayed Oscillator)
- Mantua, Nathan John
- (Ph.D.)--University Of Washington, 1994
- Interdecadal Variability Of The Equatorial Pacific Ocean And Atmosphere: 1930-1989
- Shriver, Jay Francis
- (Ph.D.)--The Florida State University, 1993
- Estimation And Analysis Of Climate-Scale Rainfall Over The Tropical Pacific (Rainfall, Pacific Ocean)
- Berg, Wesley Keith
- (Ph.D.)--University Of Colorado At Boulder, 1993
- Satellite Estimation Of The Global Distribution And Interannual Variability Of Photosynthetically Active Radiation
- Dye, Dennis Gene
- (Ph.D.)--University Of Maryland College Park, 1992
- Simulation And Prediction Of Tropical Sst With A Coupled Ocean-Atmosphere Model (Tropics, Ocean Circulation, Heat Flux)
- Stockdale, Timothy N.
- (Ph.D.)--University Of Oxford (United Kingdom), 1992
- An Intermediate Model Of The Tropical Oceans And Atmosphere
- Budin, Garry R.
- (D.Phil.)--University Of Oxford (United Kingdom), 1990
- Modeling Sea Surface Temperature And Low-Level Winds In The Tropics (Winds)
- Seager, Richard
- (Ph.D.)--Columbia University, 1990
- Interactions Between The North Pacific Ocean And The Northern Hemisphere Atmosphere During El Nino
- Alexander, Michael Adam
- (Ph.D.)--The University Of Wisconsin - Madison, 1990
- The Tropical Pacific Ocean's Heat Budget During A Cold Event, From A Numerical Model (El Nino, La Nina)
- Smith, Thomas Michael
- (Ph.D.)--University Of Delaware, 1990
- Seasonal And Interannual Variability In The Tropical Pacific Ocean (Seasonal Variability)
- Chao, Yi
- (Ph.D.)--Princeton University, 1990
- Spatial And Temporal Climatic Variations In The Tropical Atlantic And Their Relationships To Enso (Atlantic Ocean)
- Huang, Lee-Chiu
- (Ph.D.)--University Of California, Berkeley, 1990
- Dynamics And Thermodynamics Of Interannual Variability In The Tropical Atmosphere/Ocean System
- Battisti, David Stephen
- (Ph.D.)--University Of Washington, 1988
- Ocean Variability And Phytoplankton Community Structure
- Chavez, Francisco Pedro
- (Ph.D.)--Duke University, 1987
- Variability In The Earth Radiation Budget As Determined From The Nimbus Erb Experiments (El Nino, El Chichon, Drought, Aerosol)
- Ardanuy, Philip Edward
- (Ph.D.)--The Florida State University, 1986
- Wind-Driven Variability Of The Tropical Pacific And Atlantic Oceans
- Busalacchi, Antonio James, Jr.
- (Ph.D.)--The Florida State University, 1982
- Large-Scale, Long Period Ocean-Atmosphere Interactions In The North Pacific Region
- Michaelsen, Joel Christian
- (Ph.D.)--University Of California, Berkeley, 1982
- The Impact Of Atmospheric Noise On The Detection Of Interannual Climate Variability: An Observational Study Of The Atmosphere-Ocean System During 1963 - 1973
- Stefanick, Michael John
- (Ph.D.)--Princeton University, 1980
- Low Frequency Sea Level Variability Along The West Coast Of North America
- Chelton, Dudley Boyd, Jr.
- (Ph.D.)--University Of California, San Diego, 1980
- Goddard, Lisa
El Niño And Alaska
- Predictable And Unpredictable Elements Of The Northern Wintertime 500-Mb Height Field (Five Hundred Mb Height Field, Atmospheric Dynamics)
- Renwick, James Arthur
- (Ph.D.)--University Of Washington, 1995
- Hybridization And Sympatry In The Western Gull/Glaucous-Winged Gull Complex (Larus Occidentalis, Larus Glaucescens)
- Bell, Douglas Alexander
- (Ph.D.)--University Of California, Berkeley, 1992
- Large Floods In The Southwestern United States In Relation To Late-Holocene Climatic Variations (Holocene)
- Ely, Lisa Louise
- (Ph.D.)--The University Of Arizona, 1992
- Earth Radiation Budget Variability And The Relationship To Changes In The General Circulation (Atmospheric Energetics, Clouds)
- Randel, David L.
- (Ph.D.)--Colorado State University, 1990
- Dendrochronological Modeling And Reconstruction Of Large-Scale Climate Variability In Recent Centuries And Its Relation To Atmospheric Forcing Functions
- D'arrigo, Rosanne Dorothy
- (Ph.D.)--Columbia University, 1989
- Reproductive Behavior Of The Red Fox (Vulpes Vulpes): A Longitudinal Study Of An Island Population (Alaska)
- Zabel, Cynthia Jane
- (Ph.D.)--University Of California, Santa Cruz, 1986
- Low Frequency Sea Level Variability Along The West Coast Of North America
- Chelton, Dudley Boyd, Jr.
- (Ph.D.)--University Of California, San Diego, 1980
- Renwick, James Arthur
El Niño And Phytoplankton
- Origin And Maintenance Of High Nitrate Condition In The Equatorial Pacific, A Biological-Physical Model Study (Iron Limitation, Plankton)
- Chai, Fei
- (Ph.D.)--Duke University, 1995
- Dynamics Of Nutrients And Phytoplankton Production In The Strait Of Georgia Estuary, British Columbia, Canada
- Yin, Kedong
- (Ph.D.)--The University Of British Columbia (Canada), 1994
- Nutrient Recycling In Castle Lake, California: Phytoplankton - Zooplankton Interactions
- Janik, Jeffrey John
- (Ph.D.)--University Of California, Davis, 1988
- Ocean Variability And Phytoplankton Community Structure
- Chavez, Francisco Pedro
- (Ph.D.)--Duke University, 1987
- High Resolution Paleoclimatology From The Varved Sediments Of The Gulf Of California (Enso; Diatoms)
- Baumgartner, Timothy Robert
- (Ph.D.)--Oregon State University, 1987
- Satellite Observations Of Phytoplankton Variability In The Eastern Equatorial Pacific (Upwelling, Primary Production)
- Feldman, Gene Carl
- (Ph.D.)--State University Of New York At Stony Brook, 1985
- Chai, Fei
El Niño And Satellite Observation
- The Characteristics Of The Atmospheric Components Of Tropical Hydrological Cycle As Determined From Satellite (El Nino, Remote Sensing)
- Sheu, Rong-Shyang
- (Ph.D.)--University Of Colorado At Boulder, 1995
- Dual-Satellite Altimeter Crossover Measurements For Precise Orbit Determination
- Kozel, Barbara Jane
- (Ph.D.)--The University Of Texas At Austin, 1995
- Determination Of Ocean Tides From Satellite Altimetry
- Ma, Xinchao
- (Ph.D.)--The University Of Texas At Austin, 1995
- Satellite Remote Sensing Of Global Rainfall Using Passive Microwave Radiometry
- Ferriday, James Guest
- (Ph.D.)--University Of Colorado At Boulder, 1994
- A Study Of Dynamics In The Tropical Pacific Using Satellite Data (Pacific Ocean)
- Ho, Chung-Ru
- (Ph.D.)--University Of Delaware, 1994
- Satellite Estimation Of The Global Distribution And Interannual Variability Of Photosynthetically Active Radiation
- Dye, Dennis Gene
- (Ph.D.)--University Of Maryland College Park, 1992
- Ocean Wave Detection Using Satellite Altimetry
- Dayyani, Mohammad Basel
- (Ph.D.)--University Of Colorado At Boulder, 1992
- Global Monitoring Of Net Solar Irradiance At The Ocean Surface Using Nimbus-7 Satellite Data
- Chertock, Beth
- (Ph.D.)--University Of California, San Diego, 1989
- A Technique To Estimate The Ocean Surface Energy Flux Using Vas Multispectral Data (Satellite)
- Bates, John Joseph
- (Ph.D.)--The University Of Wisconsin - Madison, 1986
- Satellite Observations Of Phytoplankton Variability In The Eastern Equatorial Pacific (Upwelling, Primary Production)
- Feldman, Gene Carl
- (Ph.D.)--State University Of New York At Stony Brook, 1985
- Sheu, Rong-Shyang
El Niño And Coral Bleaching
- Effects of elevated water temperatures on coral bleaching and survival during El Niño disturbance events
- Feingold, Joshua S.
- Ph.D. dissertation, University of Miami, Coral Gables, 236 pp., 1995
- Abstract (submitted to the web administrator by the author)
- In the Galpagos Islands, Ecuador, two species of deep-dwelling (15 m depth) corals (Psammocora stellata and Diaseris distorta) survived elevated sea water temperatures that killed 95% of the coral living in shallow (2 m depth) water. These elevated temperatures occurred during the severe El Niño-Southern Oscillation of 1982-1983. Their survival was due to several contributing factors: 1) Psammocora was more resistant to bleaching than the shallow water coral, Pocillopora, 2) Diaseris was able to survive extended periods (>180 d) in the bleached state, and 3) the deep water habitat where Psammocora and Diaseris were studied experienced periodic cooling that may have mitigated El Niño-induced surface water warming. Psammocora is widely distributed throughout the Galpagos archipelago, but Diaseris can only be found at the study site at Devil's Crown, Floreana Island. These two free-living corals form a dense aggregation 100 m east of Devil's Crown in the Psammocora/Diaseris community. Monospecific aggregations of Diaseris can be found to the east and southeast, within several hundred meters of this site. The Psammocora/Diaseris community supports a large number of associated organisms, whereas the Diaseris community is devoid of macroscopic associates. Mean Psammocora growth rates were significantly (p << .001) higher (11.2 mm y-1) during moderate warming associated with the 1991-1992 El Niño compared to 1990-1991 (6.0 mm y-1), a cooler year. Water temperatures at the Psammocora/Diaseris community (15 m depth) were significantly cooler (in all 22 monthly comparisons) and usually more variable (in 12 of 22 monthly comparisons) than those at the site of a former Pocillopora reef (2 m depth) within Devil's Crown. Water temperatures fluctuated in a diurnal cycle in shallow water, and followed a semi-diurnal period in deep water. Significant decreases in zooxanthellae number, and concentrations of chlorophyll a and c were observed in Diaseris during two experiments simulating El Niño sea water warming. Psammocora also demonstrated significant decreases in chlorophyll a and c, but did not bleach, and regained pigment during a 30 d recovery period. Though significant responses were observed in only one experiment in Pocillopora, this species exhibited 22% mortality in one experiment and 50% mortality in the other. Sediment cores documented the continued presence of Psammocora and Diaseris at the study site through a long period of carbonate sediment accumulation.
- Feingold, Joshua S.
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