bcodmo_dataset_1003120_v1 eng UTF8 dataset service Adam Shepherd BCO-DMO 508-289-2772 266 Woods Hole Rd. MS#36 Woods Hole MA 02543 USA erddap@bco-dmo.org pointOfContact 2026-08-12 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 2 column row [Tide Height Variability Quadrats] - Species surveys at defined tides on the exposed rocky shores of Tatoosh Island, Makah Reservation, Washington 2014-2017 (Eco-Evolutionary Response to the Scale of Temporal Environmental Fluctuation) 2026-08-12 creation erddap.bco-dmo.org bcodmo_dataset_1003120_v1 BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1003120 information web browser Background Information Background information from the source information originator To quantify spatio-temporal changes in sessile species cover across a strong environmental gradient, we implemented a structured sampling program of quadrats deployed at discrete tidal heights in the rocky intertidal shores of Tatoosh Island, Makah Reservation, Washington, USA. At each of four wave-exposed sites with fairly uniform large rock benches, we placed and digitally photographed 50 x 50 centimeter (cm) quadrats at defined tide heights across the vertical extent of the shoreline during spring low tides using a laser level. At each tide height, we placed 10 quadrats spaced in an approximately uniform pattern to sample the entire benches, while avoiding irregular topographic features such as tide pools and large cracks, thereby establishing 10 sampling paths down the shore. Sampling heights were defined at 0.2-meter (m) intervals, occasionally at 0.1 m intervals and referenced to markers at the sites of known tidal height. Surveys were made annually from 2014-2017 in July-August following the same general methods. Quadrat locations were not identical from year to year, but followed the same general paths from one year to the next, allowing some degree of control over topographical and hydrodynamic differences across the bench from one year to the next. Photographs of the upper and lower halves of each quadrat were analyzed separately by computer in the lab for the percentage of area covered of each visible organism to the lowest taxonomic level identifiable in non-destructive photographs. The resulting data provide a picture of variability in sessile species composition across time and space along a strong gradient of environmental change, including documenting temporal variability of populations, changes in sea level, effects of changes in the abundance of key species via disease and climate variation, and determinants of zonation. BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1003120 information web browser Background Information Background information from the source information pointOfContact earth science atmosphere ocean biosphere biology environment theme BCO-DMO project latitude longitude theme CF The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. BCO-DMO largerWorkCitation project eng geoscientificInformation 1 -124.741 -124.7327 48.3912 48.39387 [Tide Height Variability Quadrats] - Species surveys at defined tides on the exposed rocky shores of Tatoosh Island, Makah Reservation, Washington 2014-2017 (Eco-Evolutionary Response to the Scale of Temporal Environmental Fluctuation) 2026-08-12 creation BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1003120 information web browser Background Information Background information from the source information originator To quantify spatio-temporal changes in sessile species cover across a strong environmental gradient, we implemented a structured sampling program of quadrats deployed at discrete tidal heights in the rocky intertidal shores of Tatoosh Island, Makah Reservation, Washington, USA. At each of four wave-exposed sites with fairly uniform large rock benches, we placed and digitally photographed 50 x 50 centimeter (cm) quadrats at defined tide heights across the vertical extent of the shoreline during spring low tides using a laser level. At each tide height, we placed 10 quadrats spaced in an approximately uniform pattern to sample the entire benches, while avoiding irregular topographic features such as tide pools and large cracks, thereby establishing 10 sampling paths down the shore. Sampling heights were defined at 0.2-meter (m) intervals, occasionally at 0.1 m intervals and referenced to markers at the sites of known tidal height. Surveys were made annually from 2014-2017 in July-August following the same general methods. Quadrat locations were not identical from year to year, but followed the same general paths from one year to the next, allowing some degree of control over topographical and hydrodynamic differences across the bench from one year to the next. Photographs of the upper and lower halves of each quadrat were analyzed separately by computer in the lab for the percentage of area covered of each visible organism to the lowest taxonomic level identifiable in non-destructive photographs. The resulting data provide a picture of variability in sessile species composition across time and space along a strong gradient of environmental change, including documenting temporal variability of populations, changes in sea level, effects of changes in the abundance of key species via disease and climate variation, and determinants of zonation. ERDDAP tabledap 1 -124.741 -124.7327 48.3912 48.39387 tight ERDDAPtabledapDatasetQueryAndAccess https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1003120_v1 ERDDAP:tabledap ERDDAP-tabledap ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes. download [Tide Height Variability Quadrats] - Species surveys at defined tides on the exposed rocky shores of Tatoosh Island, Makah Reservation, Washington 2014-2017 (Eco-Evolutionary Response to the Scale of Temporal Environmental Fluctuation) 2026-08-12 creation BCO-DMO info@bco-dmo.org https://osprey.bco-dmo.org/dataset/1003120 information web browser Background Information Background information from the source information originator To quantify spatio-temporal changes in sessile species cover across a strong environmental gradient, we implemented a structured sampling program of quadrats deployed at discrete tidal heights in the rocky intertidal shores of Tatoosh Island, Makah Reservation, Washington, USA. At each of four wave-exposed sites with fairly uniform large rock benches, we placed and digitally photographed 50 x 50 centimeter (cm) quadrats at defined tide heights across the vertical extent of the shoreline during spring low tides using a laser level. At each tide height, we placed 10 quadrats spaced in an approximately uniform pattern to sample the entire benches, while avoiding irregular topographic features such as tide pools and large cracks, thereby establishing 10 sampling paths down the shore. Sampling heights were defined at 0.2-meter (m) intervals, occasionally at 0.1 m intervals and referenced to markers at the sites of known tidal height. Surveys were made annually from 2014-2017 in July-August following the same general methods. Quadrat locations were not identical from year to year, but followed the same general paths from one year to the next, allowing some degree of control over topographical and hydrodynamic differences across the bench from one year to the next. Photographs of the upper and lower halves of each quadrat were analyzed separately by computer in the lab for the percentage of area covered of each visible organism to the lowest taxonomic level identifiable in non-destructive photographs. The resulting data provide a picture of variability in sessile species composition across time and space along a strong gradient of environmental change, including documenting temporal variability of populations, changes in sea level, effects of changes in the abundance of key species via disease and climate variation, and determinants of zonation. OPeNDAP 1 -124.741 -124.7327 48.3912 48.39387 tight OPeNDAPDatasetQueryAndAccess https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1003120_v1 OPeNDAP:OPeNDAP OPeNDAP An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes. download physicalMeasurement Site String Site Sample_Date String Sample_date Transit float Transit Marker float Marker Tide_Height float Tide_height Quadrat_number int Quadrat_number Upper_Lower_Half String Upper_lower_half Bare_Rock int Bare_rock Hedophyllum_sessile int Hedophyllum_sessile Alaria_marginata int Alaria_marginata Laminaria_setchellii int Laminaria_setchellii Costaria_costata int Costaria_costata Postelsia_palmaeformis int Postelsia_palmaeformis Fucus_gardneri int Fucus_gardneri Egregia_menziesii int Egregia_menziesii Lessoniopsis_littoralis int Lessoniopsis_littoralis Leathesia_difformis int Leathesia_difformis Nereocystis_luetkeana int Nereocystis_luetkeana Pelvetiopsis_limitata int Pelvetiopsis_limitata Crustose_Coralline_Algae int Crustose_coralline_algae Articulated_Coralline_Algae int Articulated_coralline_algae Crustose_Red_Algae int Crustose_red_algae Foliose_Red_Algae int Foliose_red_algae Filamentous_Red_Algae int Filamentous_red_algae Halosaccion_glandiforme int Halosaccion_glandiforme Callithamnion_pikeanum int Callithamnion_pikeanum Mastocarpus_papillatus int Mastocarpus_papillatus Endocladia_muricata int Endocladia_muricata Porphyra_spp int Porphyra_spp Mazzaella_cornucopiae int Mazzaella_cornucopiae Ulva_spp float Ulva_spp Acrosiphonia_coalita int Acrosiphonia_coalita Phyllospadix_spp int Phyllospadix_spp Allopora_californica int Allopora_californica Colonial_Hydroid int Colonial_hydroid Anthopleura_xanthogrammica int Anthopleura_xanthogrammica Anthopleura_elegantissima int Anthopleura_elegantissima Clathria_spp int Clathria_spp Halichondria_bowerbanki int Halichondria_bowerbanki Halichondria_panicea int Halichondria_panicea Haliclona_cinerea int Haliclona_cinerea Serpula_columbiana int Serpula_columbiana Aplidium_californicum int Aplidium_californicum Mytilus_californianus int Mytilus_californianus Mytilus_trossulus int Mytilus_trossulus Pollicipes_polymerus int Pollicipes_polymerus Balanus_nubilus int Balanus_nubilus Semibalanus_cariosus int Semibalanus_cariosus Balanus_glandula int Balanus_glandula Chthamalus_dalli int Chthamalus_dalli Unidentified_Barnacles int Unidentified_barnacles Others int Others SSWD_Zonation_Change_Data int Sswd_zonation_change_data Adam Shepherd BCO-DMO 508-289-2772 266 Woods Hole Rd. MS#36 Woods Hole MA 02543 USA erddap@bco-dmo.org distributor OPeNDAP DAP/2.0 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1003120_v1.html order Data Subset Form ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types. download https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1003120_v1.graph order Make-A-Graph Form ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data. mapDigital This record was created from dataset metadata by ERDDAP Version 2.22