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NEFSC Metadata Library > Fishery Monitoring & Research Division (FMRD) > Fisheries Sampling Branch (FSB) > Observer and At Sea Monitor Database (OBDBS) >

View: OBTTH

Entity (ENT)  |  Northeast Fisheries Science Center (NEFSC)
GUID: gov.noaa.nmfs.inport:33326  |  Updated: August 9, 2022  |  Published / External 
Summary
Item Identification
Entity Info
Data Attributes
Catalog Details

Summary

Abstract

Observer Twin Trawl Hauls

Description

Observer Twin Trawl Hauls

Entity Information

Entity Type
Data View

Data Attribute / Type Description
LINK3
VARCHAR2 		Key field linking tables at the haul level; made up of: link1 plus (4-character) haulnum. Collected for ASM where applicable.
LINK4
VARCHAR2 		Key field linking tables at the gear level; made up of: link1 + (2-character ) gearnum. Collected for ASM where applicable.
LINK1
VARCHAR2 		15-character Key field linking tables at the trip level; made up of: program + year + month + tripid. Appears as first 15 characters in all 'LINK ' fields. Collected for ASM where applicable.
PROGRAM
VARCHAR2 		First three digits of links. Code that identifies program, see OBPROGRAM table. Collected for ASM where applicable.
YEAR
VARCHAR2 		Year Landed; characters 4 - 7 of link1 - link6. Collected for ASM where applicable.
MONTH
VARCHAR2 		Month landed, the 8 - 9 characters in all link fields. Collected for ASM where applicable.
TRIPID
VARCHAR2 		May 1994 - current: 6 - character trip id; first three characters are the observer id number (obsid) and the second are the ordinal number of trips the observer has taken for the current year. Collected for ASM where applicable.
HAULNUM
VARCHAR2 		Ordinal number of haul within the trip; 4 characters beginning at position 16 of link3. Collected for ASM where applicable.
GEARNUM
VARCHAR2 		Sequential number assigned to gear number, unique by trip. Collected for ASM where applicable.
NETOBS
VARCHAR2 		Net(s) where kept and discard data were collected" 0=unknown, 1= port, 2= starboard, 3=both, 4=aft, 0= unknown Collected for ASM where applicable.
TOWSPEED
NUMBER 		Average towing speed over bottom, to nearest 10th of knot.
WIREOUT
NUMBER 		Amount of wire paid out for haul, in whole fathoms.
NTURNS
NUMBER 		Number of turns > 90 degrees in haul; begun 3/2007
NETOVERT
NUMBER 		Average distance from the top to bottom of mouth of net while fishing; whole feet; begun 3/2007
NETOHORIZ
NUMBER 		Average width of netmouth wing tip -> wing tip while fishing; whole feet; begun 3/2007
DOORSPREAD
NUMBER 		Average distance between the doors while fishing; whole feet; begun 3/2007
TTHCOMMENTS
VARCHAR2 		Additional comments regarding a twin trawl haul record. Collected for ASM where applicable.

Child Items

No Child Items for this record.

Contact Information

No contact information is available for this record.

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Item Identification

Title: View: OBTTH
Short Name: OBTTH
Status: Completed
Abstract:

Observer Twin Trawl Hauls
Notes:

Loaded by batch 8949, 07-06-2016 08:23

Entity Information

Entity Type: Data View
Active Version?: Yes
Schema Name: OBDBS
Description:

Observer Twin Trawl Hauls

Data Attributes

Attribute Summary

Rubric Score Primary Key? Name Type Description
100
 LINK3 VARCHAR2 Key field linking tables at the haul level; made up of: link1 plus (4-character) haulnum. Collected for ASM where applicable.
100
 LINK4 VARCHAR2 Key field linking tables at the gear level; made up of: link1 + (2-character ) gearnum. Collected for ASM where applicable.
100
 LINK1 VARCHAR2 15-character Key field linking tables at the trip level; made up of: program + year + month + tripid. Appears as first 15 characters in all 'LINK ' fields. Collected for ASM where applicable.
100
 PROGRAM VARCHAR2 First three digits of links. Code that identifies program, see OBPROGRAM table. Collected for ASM where applicable.
100
 YEAR VARCHAR2 Year Landed; characters 4 - 7 of link1 - link6. Collected for ASM where applicable.
100
 MONTH VARCHAR2 Month landed, the 8 - 9 characters in all link fields. Collected for ASM where applicable.
100
 TRIPID VARCHAR2 May 1994 - current: 6 - character trip id; first three characters are the observer id number (obsid) and the second are the ordinal number of trips the observer has taken for the current year. Collected for ASM where applicable.
100
 HAULNUM VARCHAR2 Ordinal number of haul within the trip; 4 characters beginning at position 16 of link3. Collected for ASM where applicable.
100
 GEARNUM VARCHAR2 Sequential number assigned to gear number, unique by trip. Collected for ASM where applicable.
100
 NETOBS VARCHAR2 Net(s) where kept and discard data were collected" 0=unknown, 1= port, 2= starboard, 3=both, 4=aft, 0= unknown Collected for ASM where applicable.
100
 TOWSPEED NUMBER Average towing speed over bottom, to nearest 10th of knot.
100
 WIREOUT NUMBER Amount of wire paid out for haul, in whole fathoms.
100
 NTURNS NUMBER Number of turns > 90 degrees in haul; begun 3/2007
100
 NETOVERT NUMBER Average distance from the top to bottom of mouth of net while fishing; whole feet; begun 3/2007
100
 NETOHORIZ NUMBER Average width of netmouth wing tip -> wing tip while fishing; whole feet; begun 3/2007
100
 DOORSPREAD NUMBER Average distance between the doors while fishing; whole feet; begun 3/2007
100
 TTHCOMMENTS VARCHAR2 Additional comments regarding a twin trawl haul record. Collected for ASM where applicable.

Attribute Details

LINK3

CC ID: 330965
Seq. Order: 1
Data Storage Type: VARCHAR2
Max Length: 19
Required: No
Primary Key: No
Status: Active
Description:

Key field linking tables at the haul level; made up of: link1 plus (4-character) haulnum. Collected for ASM where applicable.
General Data Type: VARCHAR2

LINK4

CC ID: 330974
Seq. Order: 2
Data Storage Type: VARCHAR2
Max Length: 17
Required: No
Primary Key: No
Status: Active
Description:

Key field linking tables at the gear level; made up of: link1 + (2-character ) gearnum. Collected for ASM where applicable.
General Data Type: VARCHAR2

LINK1

CC ID: 330975
Seq. Order: 3
Data Storage Type: VARCHAR2
Max Length: 15
Required: No
Primary Key: No
Status: Active
Description:

15-character Key field linking tables at the trip level; made up of: program + year + month + tripid. Appears as first 15 characters in all 'LINK ' fields. Collected for ASM where applicable.
General Data Type: VARCHAR2

PROGRAM

CC ID: 330976
Seq. Order: 4
Data Storage Type: VARCHAR2
Max Length: 3
Required: No
Primary Key: No
Status: Active
Description:

First three digits of links. Code that identifies program, see OBPROGRAM table. Collected for ASM where applicable.
General Data Type: VARCHAR2

YEAR

CC ID: 330977
Seq. Order: 5
Data Storage Type: VARCHAR2
Max Length: 4
Required: No
Primary Key: No
Status: Active
Description:

Year Landed; characters 4 - 7 of link1 - link6. Collected for ASM where applicable.
General Data Type: VARCHAR2

MONTH

CC ID: 330978
Seq. Order: 6
Data Storage Type: VARCHAR2
Max Length: 2
Required: No
Primary Key: No
Status: Active
Description:

Month landed, the 8 - 9 characters in all link fields. Collected for ASM where applicable.
General Data Type: VARCHAR2

TRIPID

CC ID: 330979
Seq. Order: 7
Data Storage Type: VARCHAR2
Max Length: 6
Required: No
Primary Key: No
Status: Active
Description:

May 1994 - current: 6 - character trip id; first three characters are the observer id number (obsid) and the second are the ordinal number of trips the observer has taken for the current year. Collected for ASM where applicable.
General Data Type: VARCHAR2

HAULNUM

CC ID: 330980
Seq. Order: 8
Data Storage Type: VARCHAR2
Max Length: 4
Required: No
Primary Key: No
Status: Active
Description:

Ordinal number of haul within the trip; 4 characters beginning at position 16 of link3. Collected for ASM where applicable.
General Data Type: VARCHAR2

GEARNUM

CC ID: 330981
Seq. Order: 9
Data Storage Type: VARCHAR2
Max Length: 2
Required: No
Primary Key: No
Status: Active
Description:

Sequential number assigned to gear number, unique by trip. Collected for ASM where applicable.
General Data Type: VARCHAR2

NETOBS

CC ID: 330966
Seq. Order: 10
Data Storage Type: VARCHAR2
Max Length: 1
Required: No
Primary Key: No
Status: Active
Description:

Net(s) where kept and discard data were collected" 0=unknown, 1= port, 2= starboard, 3=both, 4=aft, 0= unknown Collected for ASM where applicable.
General Data Type: VARCHAR2

TOWSPEED

CC ID: 330967
Seq. Order: 11
Data Storage Type: NUMBER
Max Length: 22
Required: No
Primary Key: No
Precision: 3
Scale: 1
Status: Active
Description:

Average towing speed over bottom, to nearest 10th of knot.
General Data Type: NUMBER

WIREOUT

CC ID: 330968
Seq. Order: 12
Data Storage Type: NUMBER
Max Length: 22
Required: No
Primary Key: No
Precision: 4
Scale: 0
Status: Active
Description:

Amount of wire paid out for haul, in whole fathoms.
General Data Type: NUMBER

NTURNS

CC ID: 330969
Seq. Order: 13
Data Storage Type: NUMBER
Max Length: 22
Required: No
Primary Key: No
Precision: 2
Scale: 0
Status: Active
Description:

Number of turns > 90 degrees in haul; begun 3/2007
General Data Type: NUMBER

NETOVERT

CC ID: 330970
Seq. Order: 14
Data Storage Type: NUMBER
Max Length: 22
Required: No
Primary Key: No
Precision: 4
Scale: 0
Status: Active
Description:

Average distance from the top to bottom of mouth of net while fishing; whole feet; begun 3/2007
General Data Type: NUMBER

NETOHORIZ

CC ID: 330971
Seq. Order: 15
Data Storage Type: NUMBER
Max Length: 22
Required: No
Primary Key: No
Precision: 4
Scale: 0
Status: Active
Description:

Average width of netmouth wing tip -> wing tip while fishing; whole feet; begun 3/2007
General Data Type: NUMBER

DOORSPREAD

CC ID: 330972
Seq. Order: 16
Data Storage Type: NUMBER
Max Length: 22
Required: No
Primary Key: No
Precision: 4
Scale: 0
Status: Active
Description:

Average distance between the doors while fishing; whole feet; begun 3/2007
General Data Type: NUMBER

TTHCOMMENTS

CC ID: 330973
Seq. Order: 17
Data Storage Type: VARCHAR2
Max Length: 250
Required: No
Primary Key: No
Status: Active
Description:

Additional comments regarding a twin trawl haul record. Collected for ASM where applicable.
General Data Type: VARCHAR2

Catalog Details

Catalog Item ID: 33326
GUID: gov.noaa.nmfs.inport:33326
Metadata Record Created By: Patricia L Jones
Metadata Record Created: 2016-07-06 08:23+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2016-07-28
Owner Org: NEFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2016-07-28
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2017-07-28