DB32/T 4519-2023 Fishery Resources Survey Technical Specification for Lakes

GB/T 6920-1986 Water quality—Determination of pH value—Glass electrode method GB/T 7493-1987 Water quality—Determination of nitrogen (nitrite)—Spectrophotometric method GB/T 7479-1987 Water quality—Determination of ammonium—Nessler's reagent colorimetric method GB/T 7480-1987 Water quality—Determination of nitrate—Spectrophotometric method with phenol disulfonic acid GB/T 8588-2001 Fundamental terms of fisheries resource science GB/T 8588-2024 Fundamental terms of fishery resource sciences GB/T 9727-2007 Chemical reagent—General method for the determination of phosphate GB/T 11892-1989 Water quality—Determination of permanganate index GB/T 11893-1989 Water quality—Determination of total phosphorus— Ammonium molybdate spectrophotometric method GB/T 11894-1989 Water quality—Determination of total nitrogen—Alkaline potassium persulfate digestion-UV spectrophotometric method GB/T 11913-1989 Water quality—Determination of dissolved oxygen—Electrochemical probe method GB/T 13195-1991 Water quality—Determination of water temperature—Thermometer or reversing thermometer method GB/T 13200-1991 Water quality—Determination of turbidity GB 17378.7-1998 The specification for marine monitoring Part 7:Ecological survey of offshore pollution and biological monitoring GB 17378.7-2007 The specification for marine monitoring—Part 7:Ecological survey for offshore pollution and biological monitoring GB/T 27992.3-2016 Instruments for water-depth measurement—Part 3:Echo sounder SC/T 1101-2008 Lake fisheries ecological type parameters (SC/T 1101-2008) SC/T 9102.4-2007 Fishery Ecological Environment Monitoring Standards - Part 4: Data Processing and Report Preparation SC/T 9407-2012 River drift stream fish egg and larva sampling technical specifications SL 87