Seagrass Health: A Comprehensive Monitoring Program Prepared by Susan Linn University of Texas at...
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![Page 1: Seagrass Health: A Comprehensive Monitoring Program Prepared by Susan Linn University of Texas at Austin.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0241a28abf838cd48ef/html5/thumbnails/1.jpg)
Seagrass Health:A Comprehensive Monitoring ProgramPrepared by Susan LinnUniversity of Texas at Austin
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Ecosystem Services
Primary production & carbon sequestration
Habitat and nursery
Fisheries and tourism
Nutrient cycling
Shoreline stabilization
Water filtration
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Ecosystem Services
Primary production & carbon sequestration
Habitat and nursery
Fisheries & tourism
Shoreline stabilization
Water filtration “For them it's the nursery, the roof
over their heads and the grocery store all rolled into one. “- TPWD
$82,000 per acre per year
Texas = 235,000 acres
$19,270,000,000
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Texas Native Seagrasses
Halodule wrightiiShoal Grass
Halophila engelmanniiStar Grass
Ruppia MaritimaWidgeon
Grass
Thalassia tesudinumTurtle Grass
Syringodium filiforme
Manatee Grass
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Our Study
Over 500 sites sampled
August – October 2011
Gulf of Mexico
4 Estuaries Mission Aransas Corpus Christi Bay Upper Laguna Madre Lower Laguna Madre
Sampling Sites
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Study Parameters
Light Total suspended
solids (TSS) Chloropyhll a Salinity Temperature pH Dissolved oxygen
Abiotic Factors Biotic Factors Species
composition Percent cover Canopy height Root/shoot ratio
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Dominant Species
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Geoprocessing Model
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Seagrass Percent Cover
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Chlorophyll a Concentration
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Light Attenuation
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Conclusions Light appears to be limiting factor
What about Corpus Christi Bay?
Need more parameters
Monitoring suggestions
Threats to light availability
Nutrient loading: Eutrophication
Watch Chorophyll a
Sediment loading: Erosion Watch TSS
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Next Steps Incorporate all parameters from Mission
Aransas and CC Bay Incorporate additional 500 sites from
Laguna Madre Determine if light is the limiting growth
factor in these estuaries Assign “grades” for ecosystem health to
the 4 estuaries