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SWIA

Southwest Wetlands Interpretive Association

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Elegant tern colony saltworks (May 5, 2010)

Southwest Wetlands Interpretive Association

Mission Statement

Southwest Wetlands Interpretive Association (SWIA) is a 501(c)(3) non-profit organization founded in 1979.  SWIA is dedicated to the education in and acquisition, preservation and restoration of wetlands.

Explore our Projects

Looking for something interesting? Check out our projects.

Key Programs

Key Programs
Abronia

Key Projects

Key Projects
Other Active Projects

Other Active Projects

Other Active Projects

Our Partners

California State Parks
California State Parks Cooperating Associations Program
City of Imperial Beach
Coastal Conservancy
NOAA
Southern California Wetlands Recovery Project
US Fish & Wildlife

Recent posts about our Active Projects

Invasive Plant Control Program: Pilot Channel (7-23-14)

Tijuana River Valley Invasive Plant Control Program

Exotic invasive plants have become a major problem in many California’s wild-lands and in the open space of the Tijuana River Valley three invasive species are a particular problem. These…

Tijuana River Valley Invasive Plant Control ProgramRead More

Flooding and sediment flow into the Reserve after the first big winter storm in 2018

NOAA Marine Debris Program

With funding from NOAA Fisheries, SWIA employs staff and provides program support for the Reserve Stewardship Program.  Trash and sediment originating in Mexico is a major problem for the TRNERR’s…

NOAA Marine Debris ProgramRead More

Fish sampling

NOAA Operations Programs

The Tijuana River National Estuarine Research Reserve (TRNERR) is one of twenty-nine NOAA funded NERRS in the U.S.  California Department of Parks & Recreation serves as Reserve Manager and SWIA…

NOAA Operations ProgramsRead More

Los Penasquititos Lagoon Monitoring site map

Los Penasquitos Lagoon Monitoring Program

Between 1950 – 1972, dumping of treated effluent containing nitrates and phosphates from upstream sewage treatment facilities occurred. This nutrient addition contributed to algal growth in lagoon waters, and with…

Los Penasquitos Lagoon Monitoring ProgramRead More

Elegant tern colony saltworks (May 5, 2010)

South San Diego Bay Wetland Restoration Project

The goal of the project was to restore and enhance 300 acres of coastal wetlands and uplands in San Diego Bay.  Over the past 150 years, dredging and filling operations…

South San Diego Bay Wetland Restoration ProjectRead More

Seal Beach Sedimentation Augmentation Project. Panoramic view of the site following completion of sediment augmentation.

Seal Beach Sediment Augmentation Project

This pilot project, implemented by SWIA in conjunction with the State Coastal Conservancy and USFWS, consists of the addition of a thin-layer (8-10 inches) of clean dredged sediments to 10…

Seal Beach Sediment Augmentation ProjectRead More

Dancing egrets

Tijuana Estuary Tidal Restoration Program

TETRP is a multi-phased restoration program located within the Tijuana Estuary National Estuarine Research Reserve (TRNERR). TETRP was designed to restore tidal exchange and wetland habitats just north of the…

Tijuana Estuary Tidal Restoration ProgramRead More

Native Olympia Oysters - TETRP

San Diego Bay Native Oyster Restoration Project

SWIA, partnering with the State Coastal Conservancy, Port of San Diego and U.S.F.W.S Coastal Program, will complete studies, designs and engineering that are needed for environmental review and analysis and…

San Diego Bay Native Oyster Restoration ProjectRead More

"40 Years of Restoration At Tijuana Estuary, CA" - cover photo

“40 Years Of Restoration At Tijuana Estuary, CA” – State Coastal Conservancy

“40 Years of Restoration At Tijuana Estuary, CA” – cover photo A compilation of restoration projects within the Tijuana Estuary and lessons learned.  (The publication should be available in late…

“40 Years Of Restoration At Tijuana Estuary, CA” – State Coastal ConservancyRead More

Beetles on willows

Ecology and Management of the Kuroshio Shot Hole Borer – US Navy

Year 3 of a continuing study by SWIA to understand the effects of the non-native Kuroshio Shot Hole Borer in the Tijuana River valley. Beetles on willowsUndermined tree snaps in…

Ecology and Management of the Kuroshio Shot Hole Borer – US NavyRead More

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