EMA lookup tables
EMA-lookup-tables.RmdThis document contains lookup tables for EMA data codes. Data are pulled from internal data based off of EMA internal database. This report was last run 2026-03-25
Lookup tables
| BSIERP_REGION | BSIERP_REGION_DESCRIPTION |
|---|---|
| 0 | No Region Assigned |
| 1 | AK peninsula |
| 2 | Midnorth inner shelf |
| 3 | Midnorth middle shelf |
| 4 | North inner shelf |
| 5 | North middle shelf |
| 6 | North outer shelf |
| 7 | Norton Sound |
| 8 | Off-shelf north |
| 9 | Off-shelf southeast |
| 10 | Pribilofs |
| 11 | South Bering Strait |
| 12 | South inner shelf |
| 13 | South middle shelf |
| 14 | South outer shelf |
| 15 | St. Lawrence |
| 16 | St. Matthews |
| LHS_CODE | LHS_CODE_DESCRIPTION | NOTES |
|---|---|---|
| A | Adult | NA |
| A0 | Age 0 | NA |
| A1 | Age 1 | NA |
| A1+ | Age 1+ | NA |
| A2+ | Age 2+ | Began use in 2024 when “Age 1” LHS Code was used for Pollock. |
| I_M | Mixed Immature + Mature | NA |
| J | Juvenile | NA |
| L | Larval | NA |
| U | Unspecified | NA |
| GEAR | GEAR_DESCRIPTION |
|---|---|
| 3MBT | 3meter Beam Trawl |
| Bongo153 | Bongo net with 153um mesh |
| Bongo333 | Bongo net with 333um mesh |
| Bongo505 | Bongo net with 505um mesh |
| Bongo80 | Bongo net with 80um mesh |
| CAN | 300 headrope |
| CAT | Temperature Logging. Often paired with Bongos |
| CTD | Temperature Logger/Water Sampler. |
| Juday | Zooplankton sampling net |
| MAR | Marinovich |
| NETS156 | NETS Pelagic Trawl |
| Nor264 | Nordic |
| PairoVET | Zooplankton sampling net |
| GEAR_NAME | GEAR_NAME_DESCRIPTION |
|---|---|
| 16 Plus | Sea-Bird Electronics 16 Plus |
| 19 | Sea-Bird Electronics 19 CTD (SeaCat) profiler |
| 19 Plus | Sea-Bird Electronics 19 Plus CTD (SeaCat) profiler with auxilliary sensors |
| 25 | Sea-Bird Electronics 25 CTD profiler with auxilliary sensors |
| 25 Plus | Sea-Bird Electronics 25 Plus CTD profiler with auxilliary sensors |
| 300 | Can Trawl 300 |
| 300400 | Can Trawl 300 headrope, 400 sidewalls |
| 39 | Sea-Bird Electronics 39 for temperature and pressure measurements typically collected on headrope and footrope of trawl net |
| 39 plus | Sea-Bird Electronics 39 Plus unit for Temperature and pressure measurements typically collected on headrope and footrope of trawl net (updated version of 39, came out in Feb. 2014) |
| 3MBT | 3 meter wide small mesh Beam Trawl |
| 400580 | Can Trawl 400 headrope, 580 sidewalls |
| 400601 | Can Trawl 400 headrope, 601 sidewalls |
| 49 | Sea-Bird Electronics 49 CTD (FastCat) profiler |
| 911 | Sea-Bird Electronics 9 CTD with 11 deck unit, real time data acquisition with auxilliary sensors |
| 917 | Sea-Bird Electronics 911 CTD with17Plus profiler with auxilliary sensors and V2 Searam for non-real time data acquisition and bottle firing |
| Bongo153 | 20 cm diameter, mesh 153 microns. |
| Bongo333 | 60cm diameter, mesh 333 microns. |
| Bongo505 | 60 cm diameter, mesh 505 microns. |
| Bongo80 | 80 cm diameter, mesh 153 microns. |
| Juday | Juday net, 36 cm diameter, mesh 168 microns. |
| MAR | Marinovich small mesh midwater net (with optional pocket nets) |
| NETS156 | Net Systems 156 oblique/midwater trawl. |
| Nor264 | Nordic 264 small mesh codend surface trawl net. |
| PairoVET | PairoVET net, 25 cm diameter, mesh 153 microns. |
| GEAR_PERFORMANCE | GEAR_PERFORMANCE_NAME | PERFORMANCE_DESCRIPTION |
|---|---|---|
| A | Aborted | Tow was aborted, associated data should be excluded from analyses. |
| G | Good | Trawl performed without issues |
| Q | Questionable | Trawl had issues, catches were still counted and sorted. Use at own discretion |
| S | Satisfactory | Trawl performed adequately but had some issues. See notes for specific details |
| U | Unsatisfactory | Trawl performed with very notable issues that impacted fishing. Should be excluded from analyses |
| LENGTH_TYPE | LENGTH_DESCRIPTION |
|---|---|
| BD | Bell Diameter |
| FL | Fork Length |
| ML | Mantle Length |
| SL | Standard Length |
| TL | Total Length |
| NBS_STRATA | STRATA_NAME | STRATA_DESCRIPTION |
|---|---|---|
| 0 | No Strata | Not a station considered in the NBS survey region |
| 1 | Lower Inner | South of 61.6N and East of 168.1 |
| 2 | Lower Middle | South of 61.6N and Between 168.1 and 171.1W |
| 3 | Middle Inner | Between 61.6N and 62.6N and East of 168.1W |
| 4 | Middle Middle | Between 61.6N and 62.6N and Between 168.1 and 171.1W |
| 5 | Middle Core | Between 62.7 and 63.6N and Between 165 and 168W |
| 6 | Norton Sound Core | North of 63.9N and East of 164.9W |
| 7 | Norton Sound Adaptive | South of 63.9N and East of 164.9W |
| 8 | Upper Inner | Between 63.6N and 64.6N and between -165W and 168.1W |
| 9 | Upper Outer | Between 63.6N and 64.6N and West of 168.1W |
| 10 | Bering Strait Inner | North of 64.6 and east of -168.1W |
| 11 | Bering Strait Outer | North of 64.6 and west of -168.1W |
| 12 | Lower Outer | South of 63.6 and West of 171.1 |
| OCEANOGRAPHIC_DOMAIN | OCEANOGRAPHIC_DOMAIN_DESCRIPTION | NOTES |
|---|---|---|
| 0 | No region assigned | NA |
| 1 | Coastal Shelf | 0-50m bathymetry |
| 2 | Middle Shelf | 50-100m bathymetry |
| 3 | Off Shelf | >200m bathymetry |
| 4 | Outer Shelf | 100-200m bathymetry |
| SEX | SEX_DESCRIPTION |
|---|---|
| F | Female |
| M | Male |
| U | Unknown |
| TOW_TYPE | TOW_TYPE_NAME | TOW_TYPE_DESCRIPTION |
|---|---|---|
| B | Bottom | Tow conducted on bottom/at bottom of water column. |
| D | Diel | Tow contucted at change of light (dark to light or light to dark) |
| FP | Fishing Power Comparison | Side by side tow conducted with another vessel for the sake of assessing fishing selection of used trawl gear(s) or vessels. |
| L | Live Box | Tow conducted with live box attached at end of trawl to collect live samples. |
| M | Midwater | Targeted midwater tow aimed at fish sign identified in middle of water column. |
| O | Oblique | Tow conducted from surface down to bottom and back to surface sampling whole water column. |
| S | Surface | Tow conducted at surface of water column. |
| V | Vertical | Vertical cast straight down to just off bottom and back to surface |
| VESSEL_CODE | VESSEL_ALPHA_CODE | VESSEL_NAME |
|---|---|---|
| 1 | SS | Seastorm |
| 2 | NW | Northwest Explorer |
| 3 | DY | Oscar Dyson |
| 4 | GP | Great Pacific |
| 5 | EE | Epic Explorer |
| 8 | BE | Bristol Explorer |
| 9 | AE | Alaskan Endeavor |
| 10 | JC | John N. Cobb |
| 11 | ST | Stellar |
| 12 | CH | Chelissa |
| 13 | SA | Sashin |
| 14 | QU | Quest |
| 15 | CF | Cape Flattery |
| 16 | OS | Ocean Starr |
| 17 | SI | Sikuliaq |
| 18 | AQ | Aquila |
| CODE | DESCRIPTION | FOCI_CODE |
|---|---|---|
| A & J | Adult and juveniles combined. | 64 |
| adult | Adult stage. | 0 |
| C1 | Copepodite I stage. | 20 |
| C1-2 | Copepodite stage 1 through 2. | NA |
| C1-3 | Copepodite stage 1 through 3. | NA |
| C1-4 | Copepodite stage 1 through 4. | 19 |
| C1-5 | Copepodite stage 1 through 5. | NA |
| C2 | Copepodite II stage. | 21 |
| C2-3 | Copepodite stage 2 through 3. | NA |
| C2-5 | Copepodite stage 2 through 5. | NA |
| C3 | Copepodite III stage. | 22 |
| C3-4 | Copepodite stage 3 through 4. | NA |
| C3-5 | Copepodite stage 3 through 5. | NA |
| C4 | Copepodite IV stage. | 23 |
| C4-5 | Copepodite stage 4 through 5. | NA |
| C4-6 | Copepodite stage 4 through adult. | NA |
| C5 | Copepodite V stage. | 24 |
| calyptopis | Calyptopis (stage not determined). | 60 |
| calyptopis 1 | Calyptopis 1 stage. | 61 |
| calyptopis 2 | Calyptopis 2 stage. | 62 |
| calyptopis 3 | Calyptopis 3 stage. | 63 |
| cypris | Barnacle cypris stage. | 25 |
| egg | Egg. | 11 |
| furcilia | Furcilia stage. | 29 |
| juvenile | Juvenile stage. | 80 |
| larva | Larval stage. | 51 |
| medusa | Free swimming medusa stage. | 3 |
| megalopa | Megalopa stage. | 75 |
| nauplius | Naupliar stage | 13 |
| post-larva | Stage following larval mysis stage in shrimp. | NA |
| U | Unidentified stage. | 999 |
| zoea | Zoea stage. | 70 |
| SALMON_MATURITY | MATURITY_DESCRIPTION | Notes |
|---|---|---|
| J | Juvenile | NA |
| I | Immature | Designation ONLY used in FISH (specimen) records. Salmon of this maturity come from CATCH records with LHS I_M (mixed immature/mature) |
| I_M | Immature or Mature | Unspecified whether immature or mature specimen. From CATCH records with LHS I_M (mixed immature/mature) |
| M | Mature | Designation ONLY used in FISH (specimen) records. Salmon of this maturity come from CATCH records with LHS I_M (mixed immature/mature) |