{"action":"create","ckan_id":null,"date_created":"Thu, 26 Mar 2026 21:15:57 GMT","date_finished":null,"harvest_job_id":"71ce4cfc-fc5a-492e-a4c3-ba5e1e951b0d","harvest_source_id":"3dddf3ae-84a3-4731-88b4-6a0b57d0e503","id":"a4ee2a8a-9765-47b8-bc70-1579b9d60384","identifier":"https://datainventory.usbr.gov/rise/item/11062","parent_identifier":null,"source_hash":"de7111e78a1a902d227ce61be1eaa75689f9db91260acbf8284149eeeca2f549","source_raw":"{\"accessLevel\": \"public\", \"accrualPeriodicity\": \"irregular\", \"bureauCode\": [\"010:10\"], \"contactPoint\": {\"@type\": \"vcard:Contact\", \"fn\": \"RISE Team\", \"hasEmail\": \"mailto:data@usbr.gov\"}, \"description\": \"Invasive quagga mussels have been present in the Lake Havasu ecosystem since at least 2007. Mussels are known to impact plankton communities, nutrient loads, macrophyte coverage, and higher organisms. This study was initiated to evaluate existing data related to ecological impacts of mussels at Lake Havasu. Data included water quality measurements and plankton survey data. No large trends were observed in the available data. Plankton communities have changed slightly, with rotifers becoming a larger percentage of the biomass. Soluble phosphorus may be shifting to deeper water, while nitrate-nitrogen and chlorophyll concentrations appear to have increased. Developing a full picture of the ecological impacts at Lake Havasu will require a standardized, long-term monitoring program that includes water quality and plankton, as well as higher organisms like fish and macroinvertebrates.\", \"distribution\": [{\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data.usbr.gov/catalog/4521/item/11062\", \"description\": \"Landing page for \\\"S&T Project 21058 Final Report: Invasive Quagga Mussel Impacts on the Lake Havasu Ecosystem\\\"\", \"mediaType\": \"text/html\", \"title\": \"RISE Item Details Page URL for \\\"S&T Project 21058 Final Report: Invasive Quagga Mussel Impacts on the Lake Havasu Ecosystem\\\"\"}, {\"@type\": \"dcat:Distribution\", \"description\": \"\\\"S&T Project 21058 Final Report: Invasive Quagga Mussel Impacts on the Lake Havasu Ecosystem\\\" as a PDF file\", \"downloadURL\": \"https://data.usbr.gov/rise/content-rise-public/rise/catalog-item/binary/Final Report_ST-2021-21058-01_Quagga Mussel Impacts on Lake Havasu_20210920.pdf\", \"mediaType\": \"application/pdf\", \"title\": \"PDF File for \\\"S&T Project 21058 Final Report: Invasive Quagga Mussel Impacts on the Lake Havasu Ecosystem\\\"\"}], \"identifier\": \"https://datainventory.usbr.gov/rise/item/11062\", \"keyword\": [\"Ecological Impacts Of Mussels\", \"Invasive Mussels\", \"Invasive Species\", \"Lake Havasu\"], \"landingPage\": \"https://data.usbr.gov/catalog/4521/item/11062\", \"modified\": \"2021-09-21T15:16:54Z\", \"publisher\": {\"@type\": \"org:Organization\", \"name\": \"Bureau of Reclamation\"}, \"spatial\": \"{\\\"type\\\":\\\"Point\\\",\\\"coordinates\\\":[-114.1385,34.2964]}\", \"title\": \"S&T Project 21058 Final Report: Invasive Quagga Mussel Impacts on the Lake Havasu Ecosystem\"}","source_transform":null,"status":"error"}