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Entity Info
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Summary

Abstract

This entity represents the individual samples of a type that may be collected from an observed haul. It is header information for species composition. If there are rare species present in sample and there exist multiple predominant species, a recursive subsample or subsamples may be created. The sum of the weights of the subsamples must be less than or equal to the parent sample.

Description

This entity represents the individual samples of a type that may be collected from an observed haul. It is header information for species composition. If there are rare species present in sample and there exist multiple predominant species, a recursive subsample or subsamples may be created. The sum of the weights of the subsamples must be less than or equal to the parent sample.

Entity Information

Entity Type
Data Table

Data Attribute / Type Description
CRUISE
NUMBER
Sequence generated by Norpac and supplied to the observer as an unique identifier for an observer cruise record.
SAMPLE_SEQ
NUMBER
Sequence generated unique identifier of a sample
PARENT_SAMPLE_SEQ
NUMBER
Sequence generated unique identifier of a sample
SAMPLE_NUMBER
NUMBER
Sequence within either haul or offload parent. This value is auto-generated but not necessarily unique.
OFFLOAD_SEQ
NUMBER
Sequence generated unique identifier for an offload record
HAUL_SEQ
NUMBER
Sequence generated unique identifier for a haul record
COMBINED_SAMPLE_FLAG
VARCHAR2
Identifies whether unique samples within a haul have been aggregated together.
PRESORTED_FLAG
VARCHAR2
This flag indicates that child species composition records did not come from and unsorted catch. Generally if a single large animal was removed before sampling began and so was not available for inclusion in any random sample
TOTAL_SAMPLE_WEIGHT
NUMBER
Total weight in kg of this sample.
SAMPLE_HOOKS_POTS
NUMBER
Number of hooks or pots sampled.
PERMIT
VARCHAR2
Unique Code identifying a vessel or Processor - inherited from the NORPAC data set and created by the RAM division in Juneau
SPECIES_COMP_IN_SAMPLE
VARCHAR2
This flag indicates that fish were found or were absent in this sample - in the latter case composition records are not permitted and the sample is ignored for extrapolations.
SAMPLE_DESIGN_FLAG
VARCHAR2
Identifies this sample as complying (Y) or differing (N) from the protocol declared at the haul level.
NUMBER_OF_SEGMENTS_SAMPLED
NUMBER
The number of segments (skates, racks) of hooks which went into this sample. This number may be fractional.
SAMPLE_HOOKS_OVERIDE_FLAG
VARCHAR2
This flag identifies an observer overide of the computed sample hooks - pots variable. The setting of the flag to Y will prohibit the automatic computation of sample hooks-pots from haul-hook-count * number-of-segments-sampled.
SAMPLED_BY
NUMBER
no-comment

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