Vegetative and flowering density of Zostera marina determined from from weekly-biweekly surveys in shallow and deep zones at two sites in Massachusetts, USA in 2019 (NCEI Accession 0291757)
This dataset contains physical data collected from 2019-06-04 to 2019-08-27. These data include density. These data were collected by A. Randall Hughes of Northeastern University as part of the "RUI: Collaborative Research: Trait differentiation and local adaptation to depth within meadows of the foundation seagrass Zostera marina (ZosMarLA)" project. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2021-04-01.
The following is the text of the dataset description provided by BCO-DMO:
Flowering survey Zostera marina density
Dataset Description:
Acquisition Description:
We conducted eleven surveys of two different eelgrass beds in Massachusetts every 1-2 weeks starting June 4th and ending August 27th during the summer of 2019. The two sites were West Beach in Beverly (N 42.55921, W 70.80578) and Curlew Beach in Nahant (N 42.42009, W 70.91553). Each survey consisted of a 20 m transect being laid out parallel to shore in both the shallow and deep zone. These zones were defined as being along the respective edges of the eelgrass beds. The exact depths of the zones varied from bed to bed.
During each survey we counted the number of both flowering and vegetative shoots in a 0.25 m^2 quadrat every 2 meters along the transect. If a quadrat had no shoots, an additional quadrat was added at the end of the transect. A few weeks we sampled more than 10 quadrats per depth.
The following is the text of the dataset description provided by BCO-DMO:
Flowering survey Zostera marina density
Dataset Description:
Acquisition Description:
We conducted eleven surveys of two different eelgrass beds in Massachusetts every 1-2 weeks starting June 4th and ending August 27th during the summer of 2019. The two sites were West Beach in Beverly (N 42.55921, W 70.80578) and Curlew Beach in Nahant (N 42.42009, W 70.91553). Each survey consisted of a 20 m transect being laid out parallel to shore in both the shallow and deep zone. These zones were defined as being along the respective edges of the eelgrass beds. The exact depths of the zones varied from bed to bed.
During each survey we counted the number of both flowering and vegetative shoots in a 0.25 m^2 quadrat every 2 meters along the transect. If a quadrat had no shoots, an additional quadrat was added at the end of the transect. A few weeks we sampled more than 10 quadrats per depth.
Dataset Citation
- Cite as: Hughes, A. Randall (2024). Vegetative and flowering density of Zostera marina determined from from weekly-biweekly surveys in shallow and deep zones at two sites in Massachusetts, USA in 2019 (NCEI Accession 0291757). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0291757. Accessed [date].
Dataset Identifiers
ISO 19115-2 Metadata
gov.noaa.nodc:0291757
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NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov |
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NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Time Period | 2019-06-04 to 2019-08-27 |
Spatial Bounding Box Coordinates |
West: -70.91553
East: -70.80578
South: 42.42009
North: 42.55921
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Dataset Progress Status | Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility |
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Data Center keywords | NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords |
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Last Modified: 2024-05-31T15:15:28Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov