| PrepPreservationName | PrepPreservationType1 | PrepPreservationType2 | PrepPreservationDescr | LastUpdateDate | | Antifoam | WQ | | Antifoam | 1900-01-01 |
| Antifoam, Media | WQ | | Antifoam, Media | 2010-11-01 |
| Buffered | WQ | | Buffered | 1900-01-01 |
| Centrifuged | WQ | | Centrifuged | 1900-01-01 |
| Centrifuged, LabAcidified | WQ | | Centrifuged, Acidification occurred in a lab clean environment | 2012-07-02 |
| Centrifuged, LabFrozen | WQ | | Centrifuged, Freezing occurred in a lab clean environment | 2012-07-02 |
| FieldAcidified | WQ | | Acidification occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldAcidified, FieldFrozen, LabFiltered | WQ | | Acidification occurred onsite or outside a lab clean environment, Freezing occurred onsite or outside a lab clean environment, Filtration occurred in a lab clean environment | 2018-01-22 |
| FieldAcidified, LabFiltered | WQ | | Acidification occurred onsite or outside a lab clean environment, Filtration occurred in a lab clean environment | 2013-09-18 |
| FieldAcidified, LabFiltered, LabFrozen | WQ | | FieldAcidified, LabFiltered, LabFrozen | 2012-06-14 |
| FieldBasified | WQ | | Base added to increase the pH of a sample in the field | 2009-07-01 |
| FieldBuffered | WQ | BA | Buffering occurred onsite or outside a lab clean environment | 2019-09-10 |
| FieldDechlorination | WQ | | Dechlorination occured onsite or outside a lab clean environment | 2012-12-21 |
| FieldDechlorination, FieldAcidified | WQ | | FieldDechlorination, FieldAcidified | 2012-03-12 |
| FieldFiltered | WQ | | Filtration occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldFiltered, FieldAcidified | WQ | | Filtration occurred onsite or outside a lab clean environment, Acidification occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldFiltered, FieldAcidified, FieldFrozen | WQ | | Filtration occurred onsite or outside a lab clean environment, Acidification occurred onsite or outside a lab clean environment, Freezing occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldFiltered, FieldBuffered | WQ | BA | Filtration occurred onsite or outside a lab clean environment, Buffering occurred onsite or outside a lab clean environment | 2019-08-30 |
| FieldFiltered, FieldFrozen | WQ | | Filtration occurred onsite or outside a lab clean environment, Freezing occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldFiltered, FieldSolventPres, FieldFrozen | WQ | TI | FieldFiltered, FieldSolventPres, FieldFrozen | 2011-04-11 |
| FieldFiltered, LabAcidified | WQ | | Filtration occurred onsite or outside a lab clean environment, Acidification occurred in a lab clean environment | 2012-07-02 |
| FieldFiltered, LabFrozen | WQ | | Filtration occurred onsite or outside a lab clean environment, Freezing occurred in a lab clean environment | 2012-07-02 |
| FieldFrozen | WQ | TI | Freezing occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldFrozen, Dried, Powdered | TI | | FieldFrozen, Dried, Powdered | 2010-09-29 |
| FieldFrozen, FreezeDried | WQ | | Freezing occurred onsite or outside a lab clean environment, FreezeDried | 2012-07-02 |
| FieldFrozen, LabAcidified | WQ | | Freezing occurred onsite or outside a lab clean environment, Acidification occurred in a lab clean environment | 2012-07-02 |
| FieldFrozen, LabFiltered | WQ | | Freezing occurred onsite or outside a lab clean environment, Filtration occurred in a lab clean environment | 2018-01-22 |
| FieldFrozen, Skin off | TI | | Freezing occurred onsite or outside a lab clean environment, Tissue prepped by removing skin | 2016-02-10 |
| FieldPoisoned | WQ | | Poison added as a preservative onsite or outside a lab clean environment | 2012-08-08 |
| FieldSieved | WQ | | Sieving occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldSieved, FieldFrozen | WQ | | Sieving occurred onsite or outside a lab clean environment, Freezing occurred onsite or outside a lab clean environment | 2012-07-02 |
| FieldSieved, LabFrozen | WQ | | Sieving occurred onsite or outside a lab clean environment, Freezing occurred in a lab clean environment | 2012-07-02 |
| FieldSieved, LabSolventPres | | | Sieving occurred onsite or outside a lab clean environment, Preserved with solvent in a lab clean environment | 2018-04-26 |
| FieldSolventPres | WQ | | Preserved with solvent onsite or outside a lab clean environment | 2012-08-08 |
| FieldTreatment, Abraxis530010 | WQ | | Preserved by addition of liquid preservative (10%) manufactured by Abraxis, Anatoxin/Saxitoxin Sample Diluent (10X), Product Code 530010, 53001L | 2025-06-27 |
| FreezeDried | WQ | | FreezeDried | 2012-07-02 |
| LabAcidified | WQ | | Acidification occurred in a lab clean environment | 2012-07-02 |
| LabAcidified, LabFrozen | WQ | | Acidification occurred in a lab clean environment, Freezing occurred in a lab clean environment | 2012-07-03 |
| LabAcidified, LabSettled | WQ | | Lab acidified, Sample separated by gravity settling column or similar device | 2011-12-16 |
| LabBasified | WQ | | Base added to increase the pH of a sample in the lab | 2009-07-01 |
| LabBuffered | WQ | BA | Buffering occurred in a lab clean environment | 2019-09-10 |
| LabDechlorination | | | Dechlorination occurred in a lab clean environment | 2013-12-19 |
| LabDried | WQ | | Sample dried in the lab for storage or preservation prior to extraction or digestion | 2012-01-05 |
| LabDried, LabAcidified | WQ | | Sample dried in a lab clean environment, Acidification occurred in a lab clean environment | 2014-07-02 |
| LabDried, LabFrozen | TI | | Sample dried in a lab clean environment, Freezing occurred in a lab clean environment | 2013-10-05 |
| LabFiltered | WQ | | Filtration occurred in a lab clean environment | 2012-07-02 |
| LabFiltered, Buffered | | | Filtration occurred in a lab clean environment, Buffered | 2017-01-17 |
| LabFiltered, LabAcidified | WQ | | Filtration occurred in a lab clean environment, Acidification occured in a lab clean environment | 2012-07-02 |
| LabFiltered, LabBasified | | | Filtration occurred in a lab clean environment then basified | 2017-10-13 |
| LabFiltered, LabBuffered | WQ | BA | Filtration occurred in a lab clean environment, Buffering occurred in a lab clean environment | 2019-09-10 |
| LabFiltered, LabFrozen | WQ | | Filtration occurred in a lab clean environment, Freezing occurred in a lab clean environment | 2012-07-02 |
| LabFrozen | WQ | TI | Freezing occurred in a lab clean environment | 2012-07-02 |
| LabFrozen, LabSieved | | | Freezing occurred in a lab clean environment, Sieving occurred in a lab clean environment | 2015-01-21 |
| LabFrozen, Skin off | TI | | Freezing occurred n a lab clean environment, Tissue prepped by removing skin | 2016-08-07 |
| LabPoisoned | WQ | | Poison added as a preservative in a lab clean environment | 2012-08-08 |
| LabSettled | WQ | | Sample separated by gravity settling column or similar device | 2008-04-21 |
| LabSieved | WQ | | Sieving occurred in a lab clean environment | 2013-03-28 |
| LabSieved, LabSolventPres | | | Sieving occurred in a lab clean environment, Preserved with solvent in a lab clean environment | 2018-04-26 |
| LabSieved, OvenDried | WQ | | Sieving occurred in a lab clean environment, OvenDried | 2012-07-17 |
| LabSolventPres | WQ | | Preserved with solvent in a lab clean environment | 2012-07-02 |
| None | WQ | TI | None | 1900-01-01 |
| Not Recorded | WQ | TI | Not Recorded | 1900-01-01 |
| Skin off | TI | | Tissue prepped by removing skin | 1900-01-01 |
| Skin on | TI | | Tissue prepped by leaving skin on; whether scales left on or off is unknown | 2012-06-27 |
| Skin on, Scales Off | TI | | Tissue prepped by leaving skin and removing scales | 1900-01-01 |
| Skin on, Scales On | TI | | Tissue prepped by leaving skin on and leaving scales intact | 1900-01-01 |
| Sub-sampling and Sieving | WQ | | Sub-sampling and Sieving | 2009-02-03 |
| Sub-sampling and Sieving, LabFrozen | WQ | | Sub-sampling and Sieving, LabFrozen | 2009-04-15 |
| Without Shell | TI | | Shell removed prior to analysis | 2013-10-05 |
| Without Shell, Dried | TI | | Shell removed prior to analysis and dried | 2013-10-05 |