Distribution of Seagrass Beds Along the Texas Coast Chris Wilson Marine Science Institute.

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Presentation transcript:

Distribution of Seagrass Beds Along the Texas Coast Chris Wilson Marine Science Institute

Introduction Who – UTMSI and TXCEQ Goal – Determine the factors controlling seagrass distributions along the TX coast How- Use of GIS and Time Series Data

Study Location

Data Aquisition

Light Decreasing with Depth

Light and Seagrass Cover

Depth and Total Seagrass Cover

Seagrass Cover and Location Red = 0% Cover Orange < 50% Cover Green > 50% Cover

Decline in Thalassia

Decline in Seagrass Cover

Yearly Average Rainfall For Texas

Summer Rainfall- Corpus Christi

Monthly Rainfall – Corpus Christi

Decline >20% Quadrat Cover

Conclusions Light and depth affect the distribution of seagrass beds More work needs to be focused on seagrass beds between 1 and 1.5m in depth Decline in seagrass cover may have been attributed to rainfall, but more data is needed

References es00/MarineEcologyArticles/SeagrassEcosy stems.htmlhttp://jrscience.wcp.muohio.edu/FieldCours es00/MarineEcologyArticles/SeagrassEcosy stems.html 6.html