1 23 Estuaries and Coasts Journal of the Coastal and Estuarine Research Federation ISSN 1559-2723 Volume 35 Number 1 Estuaries and Coasts (2012) 35:23-46 DOI 10.1007/s12237-011-9410-x Integrating Scales of Seagrass Monitoring to Meet Conservation Needs Hilary A. Neckles, Blaine S. Kopp, Bradley J. Peterson & Penelope S. Pooler