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Tunicate survey on eelgrass in 2017 northwest Atlantic coast New Jersey to Newfoundland


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Carman, M.R., Colarusso, P.D., Neckles, H.A., Bologna, P., Caines, S., Davidson, J.D.P., Evans, N.T., Fox, S., Grunden, D.W., Hoffman, S., Ma, K.C.K., Matheson, K., McKenzie, C., Nelson, E.P., Plaisted, H., Reddington, E., Schott, S., and Wong, M.C., 2019, Tunicate survey on eelgrass in 2017 northwest Atlantic coast New Jersey to Newfoundland: U.S. Geological Survey data release,


This dataset consists of one data file (Carman_Et_al_Tunicate_2017_survey_on_eelgrass_quad_data_final) and one definitions file (Carman_Et_al_Tunicate_2017_survey_on_eelgrass_quad_data_final_definitions). The data file consists of species and abundance of tunicates found growing on eelgrass (Zostera marina L.) in a survey of 33 northwest Atlantic eelgrass meadows in summer 2017. Eelgrass meadows represented in the dataset range from New Jersey to Newfoundland. Within each meadow, data were collected within individual quadrats (ranging from 0.0625 to 0.25 square meter) along transects or as general site surveys. Data include geographic coordinates for the center of each site surveyed; date surveyed; tunicate species found on eelgrass; [...]


Attached Files

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Carman_Et_al_Tunicate_2017_survey_on_eelgrass_quad_data_final.csv 32.6 KB
Original FGDC Metadata

64.02 KB


Colonization of eelgrass by tunicates can lead to reduced plant growth and survival. Several of the tunicate species that are found on eelgrass in the northwest Atlantic are highly aggressive colonizers, and range expansions are predicted in association with climate-change induced increases in seawater temperature. This dataset provides a baseline for identifying future changes in tunicate distribution and abundance in northwest Atlantic eelgrass meadows.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9GDBDFQ
USGS_ScienceCenter Patuxent Wildlife Research Center
USGS_MissionArea Ecosystems
USGS_keywords Aquatic Biology, Botany, Ecology

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