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| griddap | Subset | tabledap | Make A Graph | wms | files | Accessible | Title | Summary | FGDC | ISO 19115 | Info | Background Info | RSS | Institution | Dataset ID | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_990963_v1 | https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_990963_v1.graph | https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_990963_v1/ | public | [Belt Transect: Density] - Sea star abundance from surveys along the Oregon and Northern California rocky intertidal coastline from 2000 to 2024 (Collaborative Research: The role of calcifying algae as a determinant of rocky intertidal macrophyte community structure at a meta-ecosystem scale) | This dataset includes sea star abundance data collected as part of the study described below. See the \"Related Datasets\" section for size structure data.\n\nMass mortality from disease epidemics can challenge the resistance and resilience of populations and communities. Assessing the impacts of such events and their consequences is crucially dependent on long-term datasets In 2013-16, sea star wasting disease (SSWD) caused population-wide crashes of the archetypal keystone species, the sea star Pisaster ochraceus, along the North American west coast. We used two long-term datasets to assess the resilience of Pisaster populations to this perturbation in Oregon: a 16-year time series (2007-2023) of annual predation rate at 7 sites, and a 23-year time series (2001-2024) of density and size of Pisaster at 8 sites. In spring 2015, a novel and massive Pisaster recruitment event occurred at all sites, averaging 3.00 ± 0.57 recruits m-2 (± SE), an 8,100% increase compared to pre-SSWD. Elevated but spatiotemporally variable recruitment has persisted over the subsequent decade. Before SSWD, population size structure was relatively stable, consisting mostly of large adults with virtually no recruitment. After the outbreak, density, average size, and biomass density declined at nearly all sites, while SSWD persisted at low levels, averaging ~4% symptomatic per year. As of the current period (2021-2024), density and biomass density had recovered at all sites and often overshot prior levels, but average body size recovered at only 3 of 7 sites. However, the 2014 crash and the post-2014 recruitment events apparently destabilized the populations; density remains more variable among years at all but two sites.\n\ncdm_data_type = Other\nVARIABLES:\nTransectSurveyID (unitless)\nSurveyID (unitless)\nTransectID (unitless)\nGroupCode (unitless)\nRegion (unitless)\nCape (unitless)\nCapeNum (unitless)\nSiteCode_STARS (unitless)\n... (22 more variables)\n | https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_990963_v1_fgdc.xml | https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_990963_v1_iso19115.xml | https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_990963_v1/index.htmlTable | https://osprey.bco-dmo.org/dataset/990963
| https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_990963_v1.rss | https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_990963_v1&showErrors=false&email= | BCO-DMO | bcodmo_dataset_990963_v1 | |||
| https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_942763_v1 | https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_942763_v1.graph | https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_942763_v1/ | public | [Pre-experiment Urchin Barren Characterization] - (CAREER: Energy fluxes and community stability in a dynamic, high-latitude kelp ecosystem) | Before experimental manipulation with caged Pycnopodia helianthoides presence, we characterized ambient density, gonad index, and size distributions of urchin communities ( Strongylocentrotus droebachiensis and Mesocentrotus franciscanus) in three replicate urchin barrens in Sitka Sound, AK (57°2'1\"N 135°15'51\"W) from February 11-20, 2023. Via SCUBA we conducted swath surveys where grazers were identified, counted, measured (test diameter), and randomly collected for gonad dissections. These surveys serve as a baseline to describe these sites as true barrens and to compare experimental results to.\n\ncdm_data_type = Other\nVARIABLES:\nlatitude (degrees_north)\nlongitude (Long, degrees_east)\nSite (unitless)\ntime (Iso_datetime, seconds since 1970-01-01T00:00:00Z)\nDate (unitless)\ntime_unitless (Time, unitless)\nDiver (unitless)\nMeter_marks (unitless)\nSpecies (unitless)\nScientific_Name (unitless)\nCount (individual)\nArea_m2 (meters squared (m2))\nDensity_m2 (meters squared (m-2))\nnotes (unitless)\n | https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_942763_v1_fgdc.xml | https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_942763_v1_iso19115.xml | https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_942763_v1/index.htmlTable | https://osprey.bco-dmo.org/dataset/942763
| https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_942763_v1.rss | https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_942763_v1&showErrors=false&email= | BCO-DMO | bcodmo_dataset_942763_v1 | |||
| https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_942725_v1 | https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_942725_v1.graph | https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_942725_v1/ | public | [Urchin and Abalone Density Responses to Pycnopodia Cages] - Urchin and abalone density responses to caged Pycnopodia field experiment in Sitka Sound urchin barrens, February 2023 from from February 2023 (High latitude kelp dynamics project) (CAREER: Energy fluxes and community stability in a dynamic, high-latitude kelp ecosystem) | We conducted a field experiment in three replicate sea urchin barrens in Sitka Sound, AK (57°2'1\"N 135°15'51\"W) in February of 2023, where we deployed kelp blades at discrete distances on four meter radial cables from caged adult P. helianthoides and control cages for 24 hours. Via SCUBA we performed quadrat density surveys of three important kelp forest grazers (Haliotis kamtschatkana, Strongylocentrotus droebachiensis, and Mesocentrotus franciscanus) at discrete distances from the cage before, 15-30 min after, and 24 hours after P. helianthoides were added to the treatment cages.\n\ncdm_data_type = Other\nVARIABLES:\nQuadID (unitless)\nRayID (unitless)\nSite (unitless)\nlatitude (degrees_north)\nlongitude (Long, degrees_east)\nTreatment (unitless)\nReplicate (unitless)\nTreatRep (unitless)\nRay (unitless)\nDate (unitless)\nDiver (unitless)\nSurvey (unitless)\nHoursElapsed (hours)\ndepth_f (Depth_ft, feet (ft))\ndepth (Depth_m, m)\nQuad (unitless)\nDist_m (meters (m))\nSpecies (unitless)\nCount (individual)\nDensity_m2 (meters squared (m2))\nNotes (unitless)\n | https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_942725_v1_fgdc.xml | https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_942725_v1_iso19115.xml | https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_942725_v1/index.htmlTable | https://osprey.bco-dmo.org/dataset/942725
| https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_942725_v1.rss | https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_942725_v1&showErrors=false&email= | BCO-DMO | bcodmo_dataset_942725_v1 |