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

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Presentation on theme: "Distribution of Seagrass Beds Along the Texas Coast Chris Wilson Marine Science Institute."— Presentation transcript:

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

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

3 Study Location

4 Data Aquisition

5 Light Decreasing with Depth

6 Light and Seagrass Cover

7 Depth and Total Seagrass Cover

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

9 2003-2004 Decline in Thalassia

10 2003-2004 Decline in Seagrass Cover

11 Yearly Average Rainfall For Texas

12 Summer Rainfall- Corpus Christi

13 Monthly Rainfall – Corpus Christi

14 Decline >20% Quadrat Cover

15 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

16 References http://jrscience.wcp.muohio.edu/FieldCours es00/MarineEcologyArticles/SeagrassEcosy stems.htmlhttp://jrscience.wcp.muohio.edu/FieldCours es00/MarineEcologyArticles/SeagrassEcosy stems.html http://www.srh.noaa.gov/crp/climate/crpf- 6.html


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