Laboratory Method References

Domestic NSSP Laboratory List

Method NSSP Status Target/Matrix/Limitations Application (Purpose of Method) Reference Checklist Links
Approved Methods for Microbiological Testing   
APHA Decimal Dilution Approved Total Coliforms and Fecal Coliforms  - G.A. waters and Shellfish (Zero-Hour Shellfish for Depuration Only) Growing Area Classification and Depuration  Recommended Procedures, APHA 1970 Microbiology
12 tube Single Dilution Approved Total Coliforms and Fecal Coliforms  - G.A. waters (cannot be used with Systematic Random Sampling) and Shellfish (end product depurated shellfish only) Growing Area Classification and Depuration Redman 1974, Springer 1974    NSSP Interpretation 15-III-@.02-100    NSSP Interpretation 19-IV-@.02-102 Microbiology
Other APHA (10 tube, 10 ml portions) Approved Total Coliforms - UV Treated Process water Wet Storage and Depuration Standard Methods, 18th edition, 1992 Section 9221 Microbiology
mEndo agar LES Approved Total Coliforms - UV Treated Process water Wet Storage and Depuration Standard Methods, 20th edition, 1998. Section 9222 B. ; Proposal 11-111 Microbiology
A-1M Decimal Dilution MPN  Approved Fecal Coliforms - G.A. waters Growing Area Classification Method 978.23, AOAC 1990 Microbiology
A-1M 12 tube Single Dilution MPN Approved Fecal Coliforms - G.A. waters (cannot be used with Systematic Random Sampling) Growing Area Classification

NSSP Interpretation 19-III-@.02-100 

NSSP Interpretation 19-IV-@.02-102

Microbiology
A-1M without salicin  Approved Fecal Coliforms - G.A. waters (requires comparability testing) Growing Area Classification Karolus et. al 2003   Microbiology
mTEC Approved Fecal Coliforms - G.A. waters Growing Area Classification Rippey et. al 1987 (grandfathered)

Microbiology

ETCP Approved Fecal Coliforms - Shellfish (Clams only) Depuration Cabelli and Heffernan 1970 Microbiology
Standard Plate Count Approved Total Bacteria - Shellfish Shellfish transportation and handling  Recommended Procedures, APHA 1970 Microbiology
Approved Limited Use Methods for Microbiological Testing   
Modified Double Agar Overlay (MSC) Approved Limited Use MSC -  Shellfish (Hard and Soft Clams and Oysters) Tracking tool for point-sources; est. buffer zones around WWTP; reopen after WWTP discharge; assess before/after relay SLV (2009; Proposal 05-114 [soft shelled clams and oyster];13-120 [hard clams])   Microbiology
Approved Methods for Vibrio Enumeration  
EIA Approved Vibrio vulnificus (Vv) - Shellfish Antibody no longer available Reference no longer available (FDA BAM 1992) Under Development
Vibrio MPN ( with PCR confirmation) Approved Vibrio parahaemolyticus (Vp) - Shellfish PHP FDA BAM Ch9  Under Development
Direct Plating Method (probe) Approved Vibrio parahaemolyticus (Vp) (tlh & tdh) - Shellfish Growing Area Reopening  FDA BAM Ch 9; Cook et. al 1999 Checklist Under Interim Approval (17-110)
Vibrio MPN (with biochem or probe confirmation) Approved Vibrio vulnificus (Vv) - Shellfish PHP FDA BAM Ch9 & SLVs & Wright et. al 1993 Under Development
Vibrio MPN (with biochem or probe confirmation) Approved Vibrio parahaemolyticus (Vp) - Shellfish PHP FDA BAM Ch9 & SLVs & McCarthy et. al 1999 Under Development
SYBR Green 1 QPCR-MPN  Approved Vibrio vulnificus (Vv) - Oysters PHP  SLV (2009; Proposal 09-103) Under Development
MPN- Real Time PCR Approved Vibrio parahaemolyticus (Vp) (tdh & trh) - Oysters PHP and/or Growing Area Reopening SLV (2015; Proposal 15-111); Kinsey et al. 2015 PCR Microbiology
MPN- Real Time PCR Approved Vibrio parahaemolyticus (Vp) (tlh) - Oysters PHP and/or Growing Area Reopening SLV (2015; Proposal 15-113); Kinsey et al. 2015 PCR Microbiology
MPN - Real Time PCR Approved Vibrio vulnificus (Vv) - Oysters PHP SLV (2019; Proposal 19-126); Kinsey et al. 2015 Under Development
Approved Methods for Marine Biotoxin Testing  
APHA Mouse Bioassay (MBA) Approved PSP and NSP - Shellfish Growing Area Management Recommended Procedures, APHA 1970  MBA/Scotia/PSP, MBA/NSP
Receptor Binding Assay (RBA) Approved PSP - Shellfish (Mussels only) Growing Area Management SLV (2013; Proposal 13-114) Checklist Under Review (19-141)
PCOX Approved PSP - Shellfish (mussels, soft clams, oysters, scallops) Growing Area Management Proposal 09-104Rourke et. al 2008; Proposal 15-108 PSP/PCOX
LC MS/MS Approved  DSP - clams only Growing Area Management SLV (2017; Proposal 17-103) Checklist under Interim Approval(19-136)
Domoic Acid HPLC Approved  ASP (Domoic Acid) - Shellfish Growing Area Management  Quilliam et. al 1991 Domoic/HPLC
Approved Limited Use Methods for Marine Biotoxin Testing  
Abraxis Shipboard ELISA Approved Limited Use PSP - Shellfish (surf clams and quahogs) Growing Area Management  SLV 05-111 (extraction) & 09-107 (ELISA) Under Development
Scotia Rapid Test Approved Limited Use PSP - Shellfish screen Growing Area Management Proposal 03-116 and 05-110 MBA/Scotia/PSP
Reveal 2.0 ASP Approved Limited Use ASP (Domoic Acid) - Shellfish screen Growing Area Management SLV (2013; Proposal 13-112) Under Development
Receptor Binding Assay (RBA) Approved Limited Use PSP - Shellfish screening for clams and scallops only Growing Area Management SLV (2013; Proposal 13-114) Checklist Under Review (19-141)
ELISA Approved Limited Use NSP - oysters, hard clams, sunray venus clams; positive tests require MBA Growing Area Management SLV (2017; Proposal 17-107 )                                                           Marbionc

 

 

 

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