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The intended use of this data set is to provide an assessment of the status and trends of the distribution of submerged aquatic vegetation along the Alabama Coast in 2015.
Supplemental Information:
July 2015 through August 2015
Photography Date July 17-19 (Mobile Bay, Mobile-Tensaw Delta, Dauphin Island, Ft Morgan, and Perdido Key) and August 23, 25 and 26 (northern Mississippi Sound, Weeks Bay, Wolf Bay, and upper Perdido Bay.
Fall photography date October 10 - 15. |
| summary:
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The intended use of this data set is to provide an assessment of the status and trends of the distribution of submerged aquatic vegetation along the Alabama Coast in 2015.
Supplemental Information:
July 2015 through August 2015
Photography Date July 17-19 (Mobile Bay, Mobile-Tensaw Delta, Dauphin Island, Ft Morgan, and Perdido Key) and August 23, 25 and 26 (northern Mississippi Sound, Weeks Bay, Wolf Bay, and upper Perdido Bay.
Fall photography date October 10 - 15. |
| description:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN>This data set consists of GPS point data documenting the location, species composition, and other habitat characteristics of submerged aquatic vegetation in coastal Alabama, collected as part of a remote sensing investigation of SAV distribution using summer and fall 2015 ortho imagery as base maps. Survey areas include Mississippi Sound, Mobile Bay and the Mobile-Tensaw Delta, Little Lagoon, Bay La Launch, Perdido Bay, and their communicating tributaries. SAV was concentrated in upper Mobile Bay and the Mobile-Tensaw Delta, Mississippi Sound, and the Perdido Key area of southeast Baldwin County. Field location points were logged using a Trimble Pro XR differential GPS unit, following common GPS practices. Species identifications were made primarily through in-situ observations or hand-collected and identified in the field or laboratory. Depth (m) was measured with a graded sounding pole. Field surveys began in May 2015 and continued to mid-November. A total of 1,243 field points were assessed in 2015. Additional locations that were not inspected during 2015 were visited in the late spring and early summer of 2016. These areas included locations in East Fowl River, West Fowl River, Halls Mill Creek, Rabbit Creek, Fish River, Magnolia River, Bon Secour River, and lower Perdido Bay. In total, point data for the summer and fall 2015 mapping effort were collected at 1,437 locations. Overall, there were 3,875.6 more acres mapped in 2015 than in the 2009 MBNEP survey, mostly due to a 2,454.7-ac increase in the Bridgehead Quadrangle and a 511.4-ac increase in the Mobile Quadrangle.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P></DIV></DIV></DIV> |