This List of Acronyms and other Abbreviations was compiled from the coral, coral reef, marine tropical ecosystems, and related peer-reviewed literature, grey literature, and other written and electronic reports, including e-mail messages. The terms on the list number nearly 3,600 (as of February 2010) and continue to grow on a daily to weekly basis. CoRIS invites readers to suggest additional acronyms and abbreviations via or

Click here to access the entire Acronyms/Abbreviations List as a PDF document.

Click here to search the Acronyms and Abbreviations by keyword.

Acronyms A - Z Pages

A | B | C | D | E | F | G | H | I | J | K | L | M
N | O | P | Q | R | S | T | U | V | W | X | Y | Z

E-SWDS External Space Weather. Database Store (NOAA)
E.O. Executive Order
EAC East Australian Current
EAC East African Community
EAC Ecology Action Centre (Canada)
EAC Educators Advisory Committee (REEF)
EACC East African Coast Current
EAD Equivalent Air Depth
EAEST EA Engineering, Science, and Technology, Inc.
EAF Ecosystem Approach to Fisheries
EAFM Ecosystem Approach to Fisheries Management
EAFM REX Ecosystem Approach to Fisheries Management Regional Exchange
EAG Environmental Awareness Group (Antigua and Barbuda)
EAIS East Antarctic Ice Sheet
EAM East Asian Monsoon
EAM Ecosystem Approach to Management
EAME Eastern African Marine Ecoregion
EAME East African Marine Ecoregion
EANx Enriched Air Nitrox
EAPC Euro-Atlantic Partnership Council
EAPEI East Asia and Pacific Environmental Initiative
EAR Ecosystem Assessment and Restoration (FWC Florida)
EAR Ecological Acoustic Recorder
EAS European Aquaculture Society
EAS East Asian Seas
EAS-SG European Aquaculture Society - Student Group
EASAP East Asian Seas Action Plan
EAST Environmental Association of St. Thomas - St. John
EAZA European Association of Zoos and Aquaria
EAZO Energetically Active Zones of the Ocean
EBA Ecosystem Based Approaches
EBA Endemic Bird Area
EbA Ecosystem-based Adaptation
EBFM Ecosystem Based Fishery Management
EBI European Bioinformatics Institute
EBM Ecosystem Based Management
EBS Environmental Biodiversity Services
EBS     Emergency Breathing System
EBSA Ecologically or Biologically Significant Area
EBUE Eastern Boundary Upwelling Ecosystems
EC Environment Canada
EC Ecosystem Component
EC European Commission
EC European Communities
ECA Ecologically Critical Area
ECB Environment and Conservation Division
ECC Exploration Command Center
ECC Eastern Caribbean Center (UVI)
ECC Equatorial Counter Current (Pacific Equatorial Undercurrent)
ECC Environmental Compliance Certificate
ECCAS Economic Community of Central African States
ECCM Edinburgh Centre for Carbon Management
ECDIS Electronic Chart Display and Information System
ECFP Enhanced Cyan Fluorescent Protein
ECHAM4 European Centre for Medium Range Weather Forecasts and Hamburg 4
ECHO EPA Enforcement and Compliance History Online
ECl Equivalent Chlorine
ECLAC Economic Commission for Latin America and the Caribbean
ECLAC-DCC Economic Commission for Latin America and the Caribbean-Development and Cooperation Committee
ECLEI International Council of Local Environmental Initiatives
ECLSP Exuma Cays Land and Sea Park
ECNAMP Eastern Caribbean Natural Area Management Programme
ECNC European Center for Nature Conservation
ECO Earth Communications Office
ECO European Climate Change Oscillation
ECO National Historic and Ecological Preserve
Eco-DAS Ecological Dissertations in the Aquatic Sciences (UHI)
ECOHAB Ecology and Oceanography of Harmful Algal Blooms (NOAA/NSF)
EcoMar Marine Biodiversity of Hispaniola Island
ECOMAR Ecosystems of the Mid-Atlantic Ridge at the Sub-Polar Front and Charlie-Gibbs Fracture Zone
ECOMOUND Environmental Controls on Mound Formation Along the European Margin
ECOSUD Ecosystems and Sustainable Development
ECOSUR El Colegio de La Frontera Sur
ECOWAS Economic Community of West African States
ECP Extended Concentration Pathway
ECRD East Coast Research and Development Trust (India)
ECS EOSDIS Core System
ECS Extended Continental Shelf
ECSU Eastern Connecticut State University
ECTF Edinburgh Centre for Tropical Forests
ECV Essential Climate Variables
EDA Economic Development Authority
EDAB Ecosystem Disruptive Algal Bloom
EDAC Ecosystems Data Assembly Center (NOAA)
EDC Florida Keys Eco-Discovery Center (NOAA)
EDC Endocrine Disrupting Chemical
EDC Electronic Data Capture
EDCP Enhanced Data Collection Project
EDEN Everglades Depth Estimation Network
EDF Environmental Defense Fund
EDF European Development Fund
EDGAR Emission Database for Global Atmospheric Research
EDGE Evolutionarily Distinct and Globally Endangered
EDIS Environmental Data and Information Service (now NESDIS)
EDIT European Distributed Institute of Taxonomy
EDL Environmental Data Logger
EDM Fisheries Enterprise Data Management
EDM Electronic Distance Measuring
EDMED European Directory on Marine Environmental Datasets
EDMERP European Directory on Marine Environmental Research Projects
EDOCC Ecological Determinants of Ocean Carbon Cycling
EDP Executive Decision Process (NOAA)
EDP Effective Date of Permit
EDPO American Samoa Economic and Development Planning Office
EDRR Early Detection and Rapid Response
EDS Energy Dispersive Spectroscopy
EDTA Ethylenediaminetetraacetic Acid
EE Environmental Envelope
EEA European Environment Agency
EEAA Egyptian Environmental Affairs Agency
EEAP Environmental Effects Assessment Panel (UNEP)
EEE Excessive Excitation Energy
EEID Ecology and Evolution of Infectious Diseases
EEM Expedition Education Modules (OE/NOAA)
EEMP East End Marine Park (St. Croix)
EEO Equal Employment Opportunity
EEP Ecosystem Enhancement Program
EEPSEA Economy and Environment Program for Southeast Asia
EESC Equivalent Effective Stratospheric Chlorine
EESI Environmental and Energy Study Institute
EESLI Energy, Ecosystems and Sustainable Livelihoods Initiative (IUCN)
EEZ Exclusive Economic Zone
EEZS Exclusive Economic Zones
EF Enrichment Factor
EFGB East Flower Garden Banks
EFH Essential Fish Habitat
EFH-HAPC Essential Fish Habitat-Habitat Area of Particular Concern
EFHRC Essential Fish Habitat Review Committee
EFMP Ecosystem Fishery Management Plan
eFOTG NRCS's electronic Field Office Technical Guide
EFTET Energy Filtering Transmission Electron Tomography
EGA Ecological Gap analysis
EGFP Enhanced GFP
EGMEX Eastern Gulf of Mexico
EGP Environmental Genetics Program
EGP Eastern Garbage Patch
eGRID Emissions and Generation Resource Integrated Database
EGT Ecosystems Goal Team (NOAA)
EHMP Ecosystem Health Monitoring Program (SEQ)
EHS Extremely Hazardous Substance
EI Ecosystem Integrity
EI Earthwatch Institute
EIA Energy Information Administration
EIA Environmental impact assessment
EIANZ Environment Institute of Australia & New Zealand
EIC Equatorial Intermediate Current
EID Emerging Infectious Disease
EIFEX European Iron Fertilization Experiment
EIM Environmental Information management (Washington State)
EIMS Environmental Information Management System (EPA)
EIONET European Environment Information and Observation Network
EIR Environmental Impact Review
EIS Environmental Information System
EIS Environmental Impact Statement
EIS Environmental Impact Statement
EIs Economic Instruments
EISA Energy Independence and Security Act
EISF Essential Image Source Foundation
EITS Eye-in-the-Sea (NOAA)
EKE Eddy Kinetic Energy
EL Ecology Letters
ELF Eliminate Lionfish Tool
ELG Ecosystems and Livelihoods Group
ELI Environmental Law Institute
ELIP Early Light Induced protein
ELISA Enzyme-Linked Immunosorbent Assay
ELMR Estuarine Living Marine Resources
ELRA Environmental Litigation Reform Act
ELUB Estuaries and Land Use Branch (NCCOS/NOAA)
EM Electromagnetic
EMA Existing Management Area
EMA Environmental Management Authority (T&T)
EMAP Environmental Monitoring and Assessment Program (EPA)
EMAX Energy Modeling and Analysis eXercise
EMB Environmental Management Bureau
EMBL European Molecular Biology Laboratory
EMBL-Bank EMBL Nucleotide Sequence Database
EMBnet European Molecular Biology Network
EMBO European Molecular Biology Organization
EMC Event Mean Concentration
EMC Environmental Modeling Center (NOAA)
EMDW Eastern Mediterranean Deep Water
EMODNET European Marine Observation and Data Network
EMPA Environmentally Sound Fishery Management Areas (EU)
EMPSR Experimental Marine Pollution Surveillance Report (NOAA)
EMR Electromagnetic Radiation
EMRQ ExxonMobil Research Qatar
EMRTF Ecosystem Management and Restoration Trust Fund
EMS Environmental Management System
EMS Electromagnetic Spectrum
EMS Electronic Monitoring System
EMT Epithelial-to-Mesenchymal Transformation
EMT Executive Management Team (NOAA)
EN Endangered
ENAW Eastern North Atlantic Water
ENBI European Network of Biodiversity Information
ENC Electronic Navigational Chart
ENFEN Peruvian National Committee on El Niño Phenomenon Study
ENM Ecological Niche Model
ENN Environmental News Network
ENP Everglades National Park
ENR Everglades Nutrient Removal
ENRICH European Network for Research In global Change
ENSO El Nino Southern Oscillation
ENTRI Environmental Treaties and Resource Indicators
ENVIS Environmental Information System (India)
ENVISAT Environmental Satellite
EO Law Enforcement Officer
EO Executive Order
EOAP Education and Outreach Action Plan
EOB Executive Oversight Board
EOC Emergency Operations Center
EOD Ecosystems and Oceanography Division (NOAA)
EOE Extension, Outreach and Education ilot Program (NOAA)
EOFs Empirical Orthogonal Functions
EOI Eastern Oslofjord Inlet
EOI Expression of Interest
EOL Encyclopedia of Life
EOP Ecosystem Observations Program (NOAA)
EORR Experimental Oculina Research Reserve
EOS Earth Observation System/Satellite (NOAA)
EOSDIS EOS Data and Information System
EosFP Photoconvertible Fluorescent Protein
EOTR Eyes of the Reef
EP Environmental Parameter
EPA Environmental Protection Agency
EPA Everglades Protection Area
EPA Environmental Protection Area
EPAct Energy Policy Act
EPAP Ecosystem Principals Advisory Panel
EPBC Act Environment Protection and Biodiversity Conservation Act 1999 (Australia)
EPBRS European Platform for Biodiversity Research Strategy
EPCRA Emergency Planning and Community Right-to-Know Act
EPEAT Electronic Product Environmental Assessment Tool
EPGMD Broward Co. Environmental Protection and Growth Management Department
EPHE Ecole Pratique des Hautes Etudes
EPI Environmental Performance Index
EPIRB Emergency Positioning Indicating Radio Beacon)
EPIRB Emergency Position-Indicating Radio Beacon
EPO Eastern Pacific Ocean
EPOC Eastern Pacific Oceanic Conference
EPOCA European Project on Ocean Acidification
EPOCS Equatorial Pacific Ocean Climate Studies
EPP Environmentally Preferable Purchasing
EPP Environmental Protection Plan (Palau)
EPP Educational Partnership Program (NOAA)
EPPZ Environmental Preservation and Protection Zone
EPPZ/FCMZ Environmental Preservation and Protection Zone /Fisheries Conservation and Management Zone
EPR Electron Paramagnetic Resonance; also Electron Spin Resonance
EPSCoR Experimental Program to Stimulate Cooperative Research
EPV Ecological Process Value
EQA Environmental Quality Award
EQB Environmental Quality Board (Puerto Rico)
EQIP Environmental Quality Incentive Program
EQPB Environmental Quality Protection Board (Palau)
EQY Effective Quantum Yield
ER Emergency Room
ER Enrichment Ratios
ER Endoplasmic Reticulum
ERA Ecological Risk Analysis
ERA European Centre for Medium Range Weather Forecasts Reanalyses
ERA Estuary Resoration Act
ERA Ecological Reserve Area
ERA-NET European Research Area Networking
ERAP Emergency Response Action Plan
ERD Environmental Research Division (NOAA)
ERD Emergency Response Division (NOAA)
ERD Estuarine Reserves Division (NOAA)
ERDA Digital Archive
ERDDAP Environmental Research Division’s Data Access Program
ERESE Enduring Resources for Earth Sciences Education
ERF Estuarine Research Federation
ERF Effective Radiative Forcing
ERFEN Estudio Regional del Fenómeno El Niño
ERG Ecosystems Research Group
ERIN Environmental Resources Information Network (Australia)
ERK Extracellular Signal-Regulated Kinase
ERL Environmental Research Laboratories (NOAA)
ERM Environmental Resources Management
ERMA Emergency Response Management Application
ERMS European Register of Marine Species
EROS Earth Resources Observation System
ERP Ecosystems Research Program (NOAA)
ERP Environmental Resource Permit
ERP Environmental Resource Planning
ERSST Data Set Extended Reconstruction of SST Data Set
ESA European Space Agency
ESA Ecological Society of America
ESA Endangered Species Act
ESA Environmental Site Assessment
ESA Environmentally Sensitive Area
ESADS Earth Science and Applications Data System
ESB Endangered Species Branch (NMFS/NOAA)
ESB Environmental Specimen Bank(ing)
ESBM Ecosystem-Based Management
ESC Erosion and Sediment Control
ESC Exotic Species Coordination (FWC Florida)
ESC Endangered Species Coalition
ESCAP Economic and Social Commission for Asia and the Pacific
ESCI Emerging and Sustainable Cities Initiative
ESCOs Energy Service Companies
ESD Ecologically Sustainable Development
ESDIS Earth Science Data and Information System
ESI Environmental Sustainability Index
ESI Environmental Sensitivity Index
ESI Endangered Species International
ESI Map Environmental Sensitivity Index Map
ESID EcoSpatial Information Database
ESIP Earth Science Information Partners
ESJ Ecological Society of Japan
ESM Earth System Model
ESM Earth System Monitor (NOAA)
ESP Environmental Science & Policy Department (GMU)
ESP- GSA GMU's Environmental Science and Policy department and Graduate Student Association
ESPACE European Spatial Planning Adapting to Climate Events Project
ESPC Energy Savings Performance Contract
ESPC Environmental Satellite Processing Center (NOAA)
ESR Electron Spin Resonance
ESRI Environmental Systems Research Institute
ESRL Earth System Research Laboratory (NOAA)
ESSP Earth System Science Partnership
EST Expressed Sequence Tag
ESTM School of Tourism and Maritime Technology (IPL)
ESTOC European Station for Time-series in the Ocean Canary Islands
ESU Evolutionarily Significant Unit
ESUR Ecosystem Services for Urbanizing Regions
ET Environment Tobago
ET-EGOS Expert Team on Evolution of the Global Observing System
ETC Electron Transport Chain
ETCCDI Expert Team on Climate Change Detection and Indices
ETCs Extratropical Cyclones
ETDMP Expert Team on Data Management Practices
ETI Expert Center for Taxonomic Identification
ETM Enhanced Thematic Mapper
ETM+ Enhanced Thematic Mapper Plus
ETMAES Expert Team on Marine Accident and Emergency Response
ETMER Establishment of Tropical Marine Ecological Research (Japan)
ETMSS Expert Team on Maritime Safety Systems
ETOH Ethanol
ETP Eastern Tropical Pacific
ETPS Eastern Tropical Pacific Seascape
ETR Electron Transport Rate
ETSI Expert Team on Sea Ice
ETWS Expert Team on Wind Waves and Storm Surges
EU European Union
EUC Equatorial Undercurrent (Cromwell Current)
EUC Eutrophication Committee (OSPAR)
EUMETSAT European Organization for the Exploitation of Meteorological Satellites
EUNIS European Universities Information System
EUNIS European Nature Information System
EuroGOOS European GOOS
EuroTRACES European Trans-Atlantic Coral Ecosystem Study
EUS Equatorial Upwelling System
EVAAM Etablissement pour la Valorisation des Activités Aquacoles et Maritimes
EVI Environmental Vulnerability Index
EVI Ecological Valuation Index
EVO-DEVO Evolutionary Developmental Biology
EwE Ecopath with Ecosim
EWO Environmental Watch Organization (Jamaica)
EWS Early Warning Systems
EWS Eelpout in the Wadden Sea
EWT Endangered Wildlife Trust (UK)
EWT Environmental Walk-Through