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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 | |
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| log in | [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 | BCO-DMO | bcodmo_dataset_942763_v1 | ||||||||||||
| log in | [Urchin and Abalone Density Responses] - 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)\nTimePoint (units needed)\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 | BCO-DMO | bcodmo_dataset_942725_v1 |