[{"dataset_parameter_nid":"753009","supplied_name":"date","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003EDate of trial formatted as yyyy-mm-dd\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"799","parameter_description":"\u003Cp\u003Elocal month, day and year, usually as a text string, e.g. feb10_1995. It is better to use one of the other forms of presenting date and time data so that the data can be used in computations and for comparisons. Note, if the string begins with numbers but also includes letters, there may be problems using the field name for retrieval.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"date_local","parameter_external_identifier":null,"parameter_short_description":"date_local","parameter_short_name":"date_local","parameter_units":null,"parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"753010","supplied_name":"larvae_stage","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003EStage of Dendraster excentricus larvae used in the experiment: 4-arm or 6-arm stage plutei\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"985","parameter_description":"\u003Cp\u003EOrganism life history stage, reported as a code or text.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"stage","parameter_external_identifier":null,"parameter_short_description":"stage","parameter_short_name":"stage","parameter_units":null,"parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"753011","supplied_name":"column_depth_cat","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003EWater column depth category where the pH sample was collected. top = 18-20 cm from bottom of water column; bottom = 1-2 cm from the bottom of the water column; transition point = middle of the water column where two treatment waters meet\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"808","parameter_description":"\u003Cp\u003EObservation\/sample depth below the sea surface. Units often reported as: meters, feet.\u003C\/p\u003E\n\u003Cp\u003E\nWhen used in a JGOFS\/GLOBEC dataset the depth is a best estimate; usually but not always calculated from pressure; calculated either from CTD pressure using Fofonoff and Millard (1982; UNESCO Tech Paper #44) algorithm adjusted for 1980 equation of state for seawater (EOS80) or simply equivalent to nominal depth as recorded during sampling if CTD pressure was unavailable.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"depth","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P09\/current\/DEPH\/","parameter_short_description":"depth","parameter_short_name":"depth","parameter_units":"various","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"753012","supplied_name":"larvae_treatment","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003EIndicates the pCO2 treatment condition larvae were reared in from the time of spawning to the time of the experiment. \u0026quot;Acidic\u0026quot; condition was treatment water maintained at 1500ppm and \u0026quot;neutral\u0026quot; condition was treatment water maintained at 400ppm.\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"489066","parameter_description":"\u003Cp\u003EExperimental conditions applied to experimental units.\u00a0 In comparative experiments, members of the complementary group, the control group, receive either no treatment or a standard treatment.\u003C\/p\u003E\n","parameter_max_value":"","parameter_min_value":"","parameter_nd_value":"nd","parameter_official_name":"treatment","parameter_external_identifier":"","parameter_short_description":"treatment","parameter_short_name":"treatment","parameter_units":"unitless","parameter_units_external_identifier":"","order":null},{"dataset_parameter_nid":"753013","supplied_name":"column_treatment","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003EIdentifies the experimental treatment of the water column larvae were placed into. The first word indicates the pCO2 condition of the water layer at the top of the column and the second word indicates the pCO2 condition of the water layer at the bottom of the column. \u0026quot;Acidic\u0026quot; water was bubbled to be 1500ppm and the \u0026quot;Neutral\u0026quot; water was bubbled to be 400ppm.\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"489066","parameter_description":"\u003Cp\u003EExperimental conditions applied to experimental units.\u00a0 In comparative experiments, members of the complementary group, the control group, receive either no treatment or a standard treatment.\u003C\/p\u003E\n","parameter_max_value":"","parameter_min_value":"","parameter_nd_value":"nd","parameter_official_name":"treatment","parameter_external_identifier":"","parameter_short_description":"treatment","parameter_short_name":"treatment","parameter_units":"unitless","parameter_units_external_identifier":"","order":null},{"dataset_parameter_nid":"753014","supplied_name":"column_name","supplied_units":"unitless","value_format":null,"description":"\u003Cp\u003ECode for (1) tThe pCO2 treatment of the water in the top of the column (A or N); (2) the pCO2 treatment the larvae were reared within (A or N); (3) the pCO2 treatment of the water in the bottom of the column (A or N); and (4) the replicate number. \u0026quot;A\u0026quot;= acidic water that was bubbled to be 1500 pCO2; \u0026quot;N\u0026quot; = neutral water that was bubbled to be 400 pCO2\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"960","parameter_description":"\u003Cp\u003Eunique sample identification or number; any combination of alpha numeric characters; precise definition is file dependent\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":null,"parameter_official_name":"sample","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P02\/current\/ACYC\/","parameter_short_description":"sample identification","parameter_short_name":"sample","parameter_units":"dimensionless","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"753015","supplied_name":"column_depth_cm","supplied_units":"centimeters (cm)","value_format":null,"description":"\u003Cp\u003EWater column depth in cm where the pH sample was collected.\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"808","parameter_description":"\u003Cp\u003EObservation\/sample depth below the sea surface. Units often reported as: meters, feet.\u003C\/p\u003E\n\u003Cp\u003E\nWhen used in a JGOFS\/GLOBEC dataset the depth is a best estimate; usually but not always calculated from pressure; calculated either from CTD pressure using Fofonoff and Millard (1982; UNESCO Tech Paper #44) algorithm adjusted for 1980 equation of state for seawater (EOS80) or simply equivalent to nominal depth as recorded during sampling if CTD pressure was unavailable.\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"depth","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P09\/current\/DEPH\/","parameter_short_description":"depth","parameter_short_name":"depth","parameter_units":"various","parameter_units_external_identifier":null,"order":null},{"dataset_parameter_nid":"753016","supplied_name":"pH","supplied_units":"standard pH units","value_format":null,"description":"\u003Cp\u003EpH of seawater in water column\u003C\/p\u003E\n","no_data_value":"NA","conversion_necessary":"no","conversion_utility":"","parameter_nid":"1892","parameter_description":"\u003Cp\u003EpH: The measure of the acidity or basicity of an aqueous solution\u003C\/p\u003E\n","parameter_max_value":null,"parameter_min_value":null,"parameter_nd_value":"nd","parameter_official_name":"pH","parameter_external_identifier":"http:\/\/vocab.nerc.ac.uk\/collection\/P01\/current\/PHXXZZXX\/","parameter_short_description":"pH","parameter_short_name":"pH","parameter_units":"unitless; pH scale","parameter_units_external_identifier":null,"order":null}]