| Summary: | These data represent the responses of eelgrass ( Zostera marina ) beds to a series of experimental treatments conducted in 2004 and 2005 in the vicinity of Hookton Channel, Humboldt Bay, California, USA. We measured eelgrass density, growth, biomass, and flowering as the primary response variables to clipping, brant ( Branta bernicla ) fecal addition, clipping and fecal addition, and control treatments in a 2004 destructively sampled randomized block design meant to simulate different effects of brant grazing and test the compensatory growth hypothesis as fully described in an associated publication, Shaughnessy et al. (2021) in Ecosphere. We measured density, growth, and flowering as primary response variables to control, moderate, and severe clipping treatments, all with fecal addition, in a 2005 destructively sampled randomized block design meant to simulate different levels of brant grazing also described in Shaughnessy et al. (2021). The README.txt file describes each variable included in each of the eight data files presented here, and additional details of methods are available in Shaughnessy et al. (2021) and the associated appendix. Missing values in these data are represented by empty cells. Funding provided by: California Sea Grant, University of California, San Diego Crossref Funder Registry ID: http://dx.doi.org/10.13039/100005522 Award Number: # R/CZ-189
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