| CollectionMethodCode | CollectionMethodName | CollectionMethodDescr |
| ActiveSampler | ActiveSampler | Sample collected by continuous active sampler. |
| Algae_EMAP | Algae_EMAP | EMAP collection method for algae samples |
| Algae_EPA_NWS | Algae_EPA_NWS | EPA Non wadeable streams for algae samples |
| Algae_RWB | Algae_Reach-WideBenthos | Reach-Wide Benthos collection method for freshwater algae samples |
| Algae_RWB1_SFEel | Algae_RWB1_SFEel | Algae RWB1 South Fork Eel River samples |
| Algae_SCCWRP | Algae_SCCWRP | SCCWRP collection method for algae samples |
| Algae_SNARL | Algae_SNARL | SNARL collection method for algae samples |
| Algae_SWAMP | Algae_SWAMP | SWAMP collection method for algae samples |
| Algal Mat_Benthic | Algal Mat_Benthic | Algal mat attached to benthic substrate. Filamentous algae and/or cyanobacteria colonies attached together in a layer that appears as a mat. Algal mat consist of layers of loosely associated organisms (easily separated by hand) or tough mat. |
| Algal Mat_Surface | Algal Mat_Surface | Algal mat detached from benthic substrate. Filamentous algae and/or cyanobacteria colonies attached together in a layer that appears as a mat. Algal mats consist of layers of loosely associated organisms (easily separated by hand) or tough mats. |
| AutoSampler24h | 24 hour auto sampler | Sample is integrated over 24 hours |
| AutoSampler3h | 3 hour auto sampler | Sample is integrated over 3 hours |
| AutoSampler4.5h | 4.5 hour auto sampler | Sample is integrated over 4.5 hours |
| AutoSampler7d | 7 day auto sampler | Sample is integrated over 7 days |
| AutoSamplerStorm | Auto sampler automatically triggered | Sample is integrated over length of storm |
| Bag | Bag | Organisms were deployed in a bagged enclosure is not maintained with a treatment |
| Bag_MNT | Bag maintained | Bags are maintained with a treatment |
| Bank/Tow | Bank/Tow | Bank/Tow |
| BMI_ArtSub | BMI_ArtificialSubstrate | Artificial Substrate collections for benthic macroinvertebrates (BMI) samples |
| BMI_CSBP_Comp | BMI_CSBP_Composite | CSBP collection method for composited (i.e., samples from distinct transects were combined) freshwater benthic macroinvertebrate (BMI) samples |
| BMI_CSBP_Trans | BMI_CSBP_Transects | CSBP collection method for non-composited (i.e., samples from distinct transects were processed separately) freshwater benthic macroinvertebrate (BMI) samples |
| BMI_DRIFT | BMI_Drift_Net | Drift net sample to collect benthic and terrestrial organisms floating in free flowing water of streams or rivers |
| BMI_RWB | BMI_Reach-WideBenthos | Reach-Wide Benthos collection method for freshwater benthic macroinvertebrate (BMI) samples |
| BMI_RWB_MCM | BMI_Margin-Ctr-Margin | Margin-Center-Margin collection method for freshwater benthic macroinvertebrate (BMI) samples |
| BMI_RWB1_SFEel | BMI_RWB1_SFEel | BMI RWB1 South Fork Eel River collections |
| BMI_SNARL | BMI_SNARL | SNARL collection method for freshwater benthic macroinvertebrate (BMI) samples; collected from 5 randomly selected riffles |
| BMI_TRC | BMI_TargetedRiffleComposite | Targeted Riffle Composite collection method for freshwater benthic macroinvertebrate (BMI) samples |
| Bryo_DS | Bryo_DryStreams | Bryophyte collection method for dry stream samples |
| Cage | Cage | Hard cage structure is not maintained with a treatment |
| Cage_MNT | Cage maintained | Hard cage structure is maintained with a treatment |
| Field | Field Method | Method for measures collected in the field |
| Field_Cont | Field_Continuous | Method for continuous measures collected in the field |
| Fish_EMAP | Fish_EMAP | EMAP collection method for fish samples |
| FishDerby | Fish Derby | Organism collected by non-agency personnel during fish derby |
| Habitat_CSBP | Habitat_CSBP | CSBP collection method for physical habitat (PHAB) characteristics |
| Habitat_EMAP | Habitat_EMAP | EMAP collection method for physical habitat (PHAB) characteristics |
| Habitat_Generic | Habitat_Generic | Used for SWAMP field observations or as a Generic collection method for physical habitat (PHAB) characteristics that are not collected using a specific method |
| Habitat_SNARL | Habitat_SNARL | Sierra Nevada Aquatic Research Laboratory (SNARL) collection method for physical habitat (PHAB) characteristics |
| Habitat_SWAMP | Habitat_SWAMP | SWAMP collection method for physical habitat (PHAB) characteristics |
| Hook | Hook And Line | Hook and Line used to collect sample |
| Lentic_CSBP | Lentic_CSBP | CSBP collection method for lentic samples |
| Littoral | Littoral | Littoral |
| MI_RWB | MI_Reach-WideBenthos | Reach-Wide Benthos collection method for freshwater macroinvertebrate (MI) samples |
| Net | Net | Net used to collect sample e.g. fyke net, gill net, cast net, plankton net |
| Not Applicable | Not Applicable | Not Applicable, use for LABQA, FieldQA and Field Observations |
| Not Recorded | Not Recorded | Collection method not recorded |
| Other | Other | Other |
| PassiveSampler | PassiveSampler | Sample collected by continuous passive sampler. |
| Scum | Scum | Buoyant microorganisms or detritus that form scum (or foam); found on the surface of water or pushed on shore. |
| Sed_Core | Sediment_Core | Method for sediment core collection |
| Sed_Grab | Sediment_Grab | Method for generic sediment collection that was either grab or integrated |
| Seine | Seine | used for beach seine collection |
| Shock | Shock | Eboat or back-pack electroshock methods used to collect sample |
| Spear | Spear | Spear fishing used to collect sample |
| TerInvt_T_DS | TerrInvert_Trap_DryStreams | Trap collection method for dry stream terrestrial invertebrate samples |
| TerInvt_V_DS | TerrInvert_Veg_DryStreams | Vegetative bag collection method for dry stream terrestrial invertebrate samples |
| Tissue_Grab | Tissue_Grab | Method for generic tissue collection |
| Trap | Trap | Trap used to collect organism |
| Trawl | Trawl | Trawl used to collect sample e.g. otter trawl |
| Water_Grab | Water_Grab | Method for generic water collection that was either grab or integrated |
| Water_Integrated_Depth | Water_Integrated_Depth | Multiple samples collected at varying depths from a single point along a vertical column, that are combined to create a single sample. |
| Water_Integrated_Horizontal | Water_Integrated_Horizontal | Multiple grab samples collected at a single depth from various points along horizontal path, that are combined to create a single sample. |