Table: UNION_FSCS_SVSTA

Code uniquely identifying cruise. The first four digits indicate the year and the last two digit uniquely identify the cruise within the year. The 5th byte signifies cruises other than groundfish: Shrimp survey = 7 (i.e. 201470), State of Massachusetts survey = 9 (i.e. 201491), Food habits = 5 (i.e.199554)

Unique numerical code for a cruise.

A predefined area where a net dredge, or other piece of gear was deployed. Code consists of 2 parts: Stratum group code number (2 bytes) and stratum number (3 bytes). Stratum group refers to if area fished is inshore or offshore North or South of Cape Hatteras or the type of cruise (shellfish, State of MA, offshore deepwater). The stratum number (third and fourth digits of code) refers to area defined by depth zone. See SVDBS.SVMSTRATA. The fifth digit of the code increases the length of the stratum number for revised strata after the Hague Line was established. Stratum group code: 01 = Trawl, offshore north of Hatteras; 02 = BIOM; 03 = Trawl, inshore north of Hatteras; 04 = Shrimp; 05 = Scotian shelf; 06 = Shellfish; 07 = Trawl, inshore south of Hatteras; 08 = Trawl, Offshore south of Hatteras; 09 = MA DMF; 99 = Offshore deepwater (outside the stratified area). A change in Bottom Trawl Stratum for the Gulf of Maine-Bay of Fundy has been in effect since Spring 1987, and may be summarized as follows: Previous strata: 01350; Present strata: 01351, 01352.

Sequential number representing order in which station was selected within a stratum.

Unique sequential order in which stations have been completed. Hangups and short tows each receive a non-repeated consecutive number.

Code referencing whether or not a cruise is available in the SVDBS system. See SVDBS.SVCRUISE_STATUS.

Concatenation of Cruise6, Stratum, Tow and Station values.

Code designating type of tow being performed (e.g. random vs. nonrandom tows). See SVDBS.STATION_VALUE table for all statype codes and their descriptions.

Code for relative success of haul. See SVDBS.HAUL_VALUE table

Refer to SVDBS.GEAR_CONDITION table for gear condition codes and descriptions.

Concatenation of Station, Haul and Gear values. See SVDBS.STATION_VALUE, SVDBS.HAUL_VALUE, SVDBS.GEAR_CONDITION

Code concerning station details. This defines the type of sampling conducted at each station. Standard NEFSC BTS tows are coded with a T value = 1. The T value=1 is subdivided into 6 components: 1- Random Tow, within 1nm Radius; 1- Random Tow, outside 1nm, within 3nm Radius; 1- Repeat Tow; 1- Random Altername; 1- Random Offshore Continental Shelf; 1- Altername Offshore Protocol. Tow types other than NEFSC BTS standard random tows are defined by the following code values: 2- Non-Random Tow - Tow is not conducted according a random and stratified statistical design. Tow must follow NEFSC BTS protocols.; 3- Survey Standardization - Tow conducted to evaluate NEFSC BTS standardization (i.e. gear testing); 4- Comparison Tow - Tow conducted in comparison of other gears, surveys, vessels or operating procedures ; 5- Aborted Tow - Gear set but timed tow duration never started (aborted tow); 6- Site Specific - Non-random tow conducted in a specific, targeted region; 7- Experimental Survey Design - Survey design type other than random and stratified (i.e. transect, depletion study, grid, fixed etc.); 8 Other - Tows that do not fall into the previous categories. Detailed description of the tow type shall be recorded.

Comment concerning the Type_Code of the given operation.

Code to define tow in terms of the operational characteristics (i.e. tow duration, vessel speed, scope ratio, depth, trawl perf., winch perf., stratum boundaries. O-Value= 4 is considered non-valid. Tow should be repeated, when possible, at the discretion of Chief Scientist. 1- Good Performance - All operational parameters are within optimal tol.range.2- Representative - Tow dur. 18.00min 19.49min or 20.50min-21.00min; 75-99% on-bottom tow dist. within the correct stratum; Door Spread mean outside optimal but within tol. limit. Wing Spread mean outside optimal but within tolerance limit. (Door and Wing spread are depth dependant calcs.); Headrope Height mean outside optimal but within the tolerance limit(Optimal Height is 3.2-4.1m.3- Representative - Tow dur. 16.00min -17.99min; Acqu. Code Value = 4 (details given with A code); Door Spread Std Deviation High (greater than 4.5m);Wing Spread Std Deviation High (> than 2.0m; Headrope Ht Spread Std Deviation High (Greater than 1.0m; Scope Ratio outside tolerance limit. (+/- 25%)4- Non Representative - Tow dur. < than 16.00min or > than 21.00min; Tow distance < than 0.8nm or > than 1.05nm; Door Spread mean outside tol. limit. (Depth dependant); Wing Spread mean outside tol. limit.(Depth dependant); Headrope Height mean outside tol. limit. (Less than 2.7m or greater than 4.7m); SOG mean outside tol. limit. (Less than 2.6 or greater than 3.4kts); Depth mean outside tol. limit. (EK6018kHz, must be within +/- 10% of set depth, or +/-5m at depths less than 50m); Mean Starboard and Mean Port Block Tension not equalized within ±0.5t; Diff. between mean Starboard and Port Winch calculated wire out lengths greater than 10m; Diff. between mean STBD and Port Block wire out lengths greater than 10m; Less than 75% of on-bottom tow distance within correct stratum; Trawl Depth > than 20% difference of vessel tow depth; Chief Scientist or Watch Chief Failed tow- tow considered unsatisfactory based on vessel or gear performance.

Comment concerning Operation Code of given operation (tow duration, vessel speed, scope ration, depth, trawl performance,winch performance, and stratum boundaries.

Gear condition code.Gear defined as trawl net,cod-end,liner,sweep,doors & rigging. Valid Gear values =1,2,4(no code 3).1-Good Tow- No damage to webbing, frame ropes, sweep doors or rigging. Trawl properly rigged and considered to be in standard configuration. 2- Representative- Minor Small Holes/Tears in webbing (incl. cod-end and liner).Tears easily repaired coded 2. Larger holes/tears in Jibs,Wings,Bunts,Square or 1st & 2nd Top Bellies.Hole not thought to sig. alter fish capture.Obstr. in/on gear, not thought to signif. alter fish capture Minor Hang;No signif. gear damage;Hang,after 16.00min tow dur.;Tow dur. adjust to time hang occurred;Insignif. sweep damage (i.e. slight damage to rockhoppers not thought to increase fish escapement);Loss or damage to < than 12 floats; Very large catch;Deck tow of dogfish or other species;Other gear damage/malfunction not thought to significantly alter fish capture.4-Non_Representative -Signif. holes/tears/large holes in bottom bellies, or any portion of webbing aft of 2nd belly;Major Gear Damage(i.e. rim-rack, whole sections torn out,loss of trawl door(s) etc.);Open Cod-end;Improperly Attached Liner OR Open Liner OR Signif. Catch Outside Liner;Twisted Wing(s);Signif. Loss of bottom contacts (4min duration or longer).Improper Rigging;Collapsed Doors;Crossed Doors;Major Sweep Damage. (Parted sweep and/or major damage(i.e. loss of more than one rockhopper, or damage to sweep components thought to significantly increase fish escapement. Damaged Frame Rope(s)(headrope,up&down line,bolshline);Open Gore;Twisted or Crossed Bridle(s); Parted Legs;Loss/damage to 12 or > floats;Signif. damage to wing-end extension (i.e. loss, broken or altered length).Signif. Hang. Occurring at <16.00min tow dur.(OR unknown tow dur.;Large obstr. IN/ON gear thought to alter catch effic. or trawl geom.(i.e. pot stuck in front opening of cod-end. Catch not landed on deck;Damage to main towing cable(s);Other gear dam./malf. signif. altering catch efficiency.

Comment concerning gear condition, damage or malfunction of a given operation.

Code concerning data acquisition (i.e. SCS data, trawl mens., SCS event button press).1- No Data Acq Errors. All data acq 75% or greater valid.2- Representative: Door Spread 50.00% - 74.99% data acq.;Wing Spread 50.00% - 74.99% data acq.;Height 50.00% - 74.99% data acq.;Trawl Depth 50.00% - 74.99% data acq.;Winch Tension 50.00% - 74.99% data acq.;Winch Wire Out 50.00% - 74.99% data acq.;Block Tension 50.00% - 74.99% data acq.;Block Wire Out 50.00% - 74.99% data acq.;Speed Over Ground 50.00% - 74.99% data acq.;Vessel Depth 50.00% - 74.99% data acq.;GPS 50.00% - 74.99% data acq.;3-Representative: Door Spread 25.00% - 49.99% data acq.;Wing Spread 25.00% - 49.99% data acq.;Height 25.00% - 49.99% data acq.;Trawl Depth 25.00% - 49.99% data acq.;Winch Tension 25.00% - 49.99% data acq.;Winch Wire Out 25.00% - 49.99% data acq.;Block Tension 25.00% - 49.99% data acq.;Block Wire Out 25.00% - 49.99% data acq.;Speed Over Ground 25.00% - 49.99% data acq.;Vessel Depth 25.00% - 49.99% data acq.;GPS 25.00% - 49.99% data acquisition.4- Non_Representative: Door Spread Less Than 25.00% data acq.;Wing Spread Less Than 25.00% data acq.;Height Less Than 25.00% data acq.;Trawl Depth Less Than 25.00% data acq.;Winch Tension Less Than 25.00% data acq.;Winch Wire Out Less Than 25.00% data acq.;Block Tension Less Than 25.00% data acq.;Block Wire Out Less Than 25.00% data acq.;Speed Over Ground Less Than 25.00% data acq.;Vessel Depth Less Than 25.00% data acq.;GPS Less Than 25.00% data acq.;Error Recording Event Data. Trawl event data missing.;Critical Button Press Error, Unknown Event Time(s).

Comment concerning data acquisition (i.e. SCS data, trawl mensuration, SCS event button press).

A concatentation of the T, O, G and A codes assigned to an operation. Each standard survey tow is evaluated based on four categories, Type, Operational, Gear and Acquisition (T.O.G.A.). Type (T), Operational (O) and Gear (G) categories are used to validate each tow; the Acquisition (A) category is additional information not used for validation. T.O.G.A. is a detailed analysis of survey trawl and vessel performance during each tow, utilizing available data from trawl mensuration systems and vessel sensors not previously analyzed by the historical Station, Haul, and Gear (S.H.G.) coding system.

Standard area code used for commercial data (New England Statistical Area Code) for the position of the beginning of the tow.

Standard two character code for a survey vessel. Refer to SVDBS.SV_VESSEL

National Ocean Services (NOS) consecutive cruise number on a particular vessel.

Code referencing predominant gear type used on a cruise. See SVDBS.SVGEAR table.

Date and time represented by Eastern Standard Time (EST) for the start of a tow or deployment.

Date and time represented by Eastern Standard Time (EST) at the end of a tow or deployment.

Date and time represented by Greenwich Mean Time (GMT) for the start of a tow or deployment.

Date and time represented by Greenwich Mean Time (GMT) at the end of a tow or deployment.

Year, represented by Eastern Standard Time (EST).

Month, represented by Eastern Standard Time (EST).

Day of the month represented by Eastern Standard Time (EST).

Julian day of towdate represented as Eastern Standard Time (EST).

Time, represented by Eastern Standard Time (EST).

Year, represented as Greenwich Mean Time (GMT).

Month, represented as Greenwich Mean Time (GMT).

Day of the month, represented as Greenwich Mean Time (GMT).

Julian day of towdate represented as Greenwich Mean Time (GMT).

Time, represented as Greenwich Mean Time (GMT).

Duration of tow in minutes.

Depth at the time the primary gear is set to fish, to the nearest meter.

Water depth (m) at end of tow.

Minimum depth (m) at which gear fished.

Maximum depth at which gear fished.

A four digit number recording the average depth, to the nearest meter, during a survey gear deployment.

An eight digit number measuring to the nearest thousandth of a nautical mile (e.g., 14564.345). Used to mark the beginning of a survey trawl for acoustic data purposes.

An eight digit number measuring to the nearest thousandth of a nautical mile (e.g., 14564.345). Used to mark the end of a survey trawl for acoustic data purposes.

Beginning latitude of tow (decimal minutes).

Beginning longitude of tow (decimal minutes).

Latitude at end of tow (decimal minutes).

Longitude at end of tow (decimal minutes).

Beginning latitude of tow in decimal degrees.

Beginning longitude of tow in decimal degrees.

Ending latitide of tow in decimal degrees.

Ending longitude of tow in decimal degrees.

Starting Loran C time delay.

Ending Loran C time delay.

Starting Loran C time delay.

Ending Loran C time delay.

Wire out (meters) at the water surface.

Pitch of variable pitch propeller.

Vessel compass heading.

Actual course the vessel made good in degrees.

Average shaft revolutions per minute while under tow.

Distance traveled, in nautical miles, between the start and stop of the gear deployment event.

Distance traveled, in nautical miles, between the start and stop of the gear deployment using doppler through the water. This is a deprecated field, and only collected prior to 1993.

Designated towing speed for a particular gear (knots).

Net identification number located on wing of net.

Identification number of doors.

Code for gear deployed other than primary gear (i.e. net, dredge) such as bongo, Neuston, etc. See SVDBS.OTHGEAR

Air temperature (degrees Celsius) rounded to nearest whole degree.

Code to represent percentage of cloud cover. See SVDBS.CLOUD

Barometric pressure (millibars).

Direction of wind during deployment of gear (degrees).

Speed of wind in knots.

Code reflecting weather condition. See SVDBS.WEATHER table

Height of waves (m).

Swell direction (degrees).

Swell height (m).

Surface water temperature (degrees Celsius).

Volume of trash in liters.

Trash by % of shells collected during shellfish surveys.

Trash by % of living animals such as fish, starfish and snails colected during shellfish surveys.

Trash by % of rocks, pebbles, sand collected during shellfish surveys.

Code associated with expendable bathythermograph (temperature/depth profile instrument). See SVDBS.XBT

Surface temperature of water (degrees Celcius).

Salinity at water surface in practical salinity units (PSU).

Bottom temperature (degrees Celsius).

Bottom salinity in Practical Salinity Units (PSU).

Fullness of the dredge, measured to the nearest bushel (used on scallop and clam surveys only).

Number of biological data sheets associated with a given station.

Speed over bottom (knots) recorded by GPS.

Watch Chief comment regarding current tow.

Comment from the bridge officers.

Comments on non-coded species found in catch.