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Seagrass map, Cat Island and Ship Island, Mississippi, 2011

Dates

Publication Date
Start
2011-09-27
End
2011-10-08

Citation

Enwright, N.M., Cheney, W.C., Mouton, K., and Stelly, S.J., 2022, Seagrass map, Cat Island and Ship Island, Mississippi, 2011: U.S. Geological Survey data release, https://doi.org/10.5066/P9TO5P3R.

Summary

This product depicts the spatial coverage of seagrass beds from 0.5-m color-infrared orthoimagery for Cat Island and Ship Island, Mississippi from early fall of 2011. Specifically, the map includes presence and absence of seagrass beds within a potential seagrass extent that was based on topobathymetric data. A minimum mapping unit of 4 square meters was used for this mapping effort.

Contacts

Attached Files

Click on title to download individual files attached to this item.

Shapefile: Cat_Ship_seagrass_2011.zip
Cat_Ship_seagrass_2011.cpg 5 Bytes
Cat_Ship_seagrass_2011.dbf 290 Bytes
Cat_Ship_seagrass_2011.prj 424 Bytes
Cat_Ship_seagrass_2011.sbn 180 Bytes
Cat_Ship_seagrass_2011.sbx 124 Bytes
Cat_Ship_seagrass_2011.shp 41.67 MB
Cat_Ship_seagrass_2011.shx 132 Bytes

Purpose

Seagrasses are submerged marine plants that grow in shallow coastal environments where they form expansive meadows. They have been declining globally at increasing rates, which is problematic because they provide numerous ecosystem services. Patch-level seagrass mapping is being conducted through the Mississippi Coastal Improvements Program (MsCIP) Monitoring and Adaptive Management Program (MAMP). This map serves as a historical map for the MsCIP MAMP. This dataset will be combined with the baseline seagrass map (i.e., 2014) and future seagrass maps to assess whether MsCIP restoration efforts negatively impacted seagrass coverage and distribution. These restoration efforts included a beach and dune nourishment on Cat Island in 2017 and closing Camille Cut and re-join East Ship Island and West Ship Island in 2019. Due to widespread decline of seagrasses, researchers and natural resource managers are concerned with detecting and understanding changes in areal coverage, spatial distribution, and condition of these important ecosystems. These maps can be used by researchers and natural resource managers to explore trends in seagrass coverage along with more advanced assessments of spatial structure and configuration of seagrass.

Map

Spatial Services

ScienceBase WMS

ScienceBase WFS

Communities

  • USGS Data Release Products
  • USGS Wetland and Aquatic Research Center

Tags

Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9TO5P3R

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