California Department of Fish and Game 20080818 vector digital data ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/400_499/ds429.zip http://bios.dfg.ca.gov In the spring of 2003, California Department of Fish and Game (CDFG) personnel began quarterly sampling of Salton Sea fish at fourteen stations around the sea, as the basis of a long term monitoring program. In conjunction with this effort, water quality sampling takes place at the same time and place. *Note: This dataset should be viewed with the 'Quarterly Fishery Surveys - Salton Sea [ds428]' dataset. Methods: Eleven sampling sites comprise three broad habitat types: pelagic (3 sites), near-shore (8 sites), and estuarine (3 sites). The pelagic sites are in the approximate middles of the north basin, south basin and inter-basin areas of the Sea. The near-shore sites are spaced widely apart, four each, near the west and east shores, to capture as much breadth of habitat as possible. The estuarine sites are in the body of the Sea, close enough to the mouths of the New, Alamo, and Whitewater Rivers, to be under the influence of their outflows. The three deep water (pelagic) sites were completely unproductive for gill net sampling of fish during the first year of sampling. They have subsequently been dropped from the sampling protocol. Sampling takes place during each of the putative seasons, as follows: spring- April and May; summer- July and August; fall- October and November; winter- January and February. We attempt to compress the total sampling period into as few days as possible, to the extent that the weather, equipment maintenance, and personnel scheduling constraints allow. Nets are set for a 24 hour period. At the time of each set and retrieval of nets, water temperature, conductivity, specific conductivity, dissolved oxygen and sampling depth are measured and recorded, at the approximate mid-net water depth. Measurements are made with a handheld YSI meter, Model 85. Salinity is calculated from the specific conductivity measurement using the following algorithm: Salinity = 0.013(SC2) - 0.233(SC) + 17.102 These data will be informative to the management of the fisheries, and the efforts to restore the Salton Sea. Water quality data can be analyzed along with associated fish sampling data, to determine whether there is an effect of water quality parameters on fish numbers and/or distribution patterns. 20030401 20080701 ground condition In work Quarterly -116.070641 -115.605210 33.522154 33.131802 None salinity water quality monitoring ISO 19115 Topic Category environment inlandWaters biota None Imperial County Salton Sea Riverside County New River Alamo River Whitewater River California none - data may be distributed upon request. None California Department of Fish and Game - Salton Sea Program Jack Crayon 760 200-9172 jcrayon@dfg.ca.gov Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Data collection was started in the spring of 2003, continuing quarterly. Data collection is ongoing as of 2008. Two seasons were missed due to unavailability of launch sites: Fall 2007 and Winter 2007. Converted from UTM Zone 11 NAD 83 into Albers NAD83. 20080818 California Department of Fish and Game Kristina White bios@dfg.ca.gov Vector Entity point 472 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.000000003754707655900803 0.000000003754707655900803 meter D North American 1983 GRS 1980 6378137.0 298.257222101 ds429 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. Date_ The calendar date on which data were recorded. Site The name given to each sampling site, based on a nearby landmark. Jack Crayon: Sampling prior to April, 2003 was irregular and opportunistic. Starting in April, 2003, data are part of a regular quarterly sampling protocol, at set locations. Probe The water depth at which the meter probe recorded data, measured in feet (ft). Temp_C The water temperature measured by the meter, in degrees centigrade ( C). Conductivi The meter reading for conductivity, measured in millisiemens (mS). Sp_Conduct The meter reading for specific conductivity, measured in millisiemens (mS). Salinity The calculation of water salinity from its measured specific conductivity, using the following formula: [Salinity = 0.013(SC2) - 0.233(SC) + 17.102], expressed in parts per thousand (ppt). Diss_Oxyge The meter reading for dissolved oxygen, measured in milligrams per liter (mg/l). Comments Miscellaneous comments. UTM_E The easting value for the Universal Transverse Mercator based coordinates of a sampling site. NAD83 datum. Jack Crayon: Prior to the start of regular sampling, in April, 2003, data were collected in the general vicinity of the site name, but not by GPS location. UTM_N The northing value for the Universal Transverse Mercator based coordinates of a sampling site. NAD83 datum. Jack Crayon: Prior to the start of regular sampling, in April, 2003, data were collected in the general vicinity of the site name, but not by GPS location. 20160302 California Department of Fish and Game - Salton Sea Program Jack Crayon 760 200-9172 jcrayon@dfg.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time