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Southern California Bight 2008 Regional Monitoring Survey


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tblInfaunalAbundance


PURPOSE: The purpose of the infaunal abundance table is to document the numerical presence of all infaunal animals collected at a station. Each record represents the abundance of a particular infaunal species in an individual sample and the agency that collected the species.

The exclude code is explained below. If the agency wishes to separate adults and juveniles of the same species, the number of juveniles can be carried in the comments field, but the abundance number will reflect the total number of animals of that species at that station.

The species field should contain genus and species names free of any punctuation, including, periods, commas, and quotation marks. The ScreenSize field refers to the size screen used to process the sample on board ship and is carried for historical purposes.

Exclude Notation

Purpose: Provides an aid to data analysis when calculating metrics using the number of taxa present (e.g., diversity, species richness). This field in the final data set represents the taxonomist’s recommendation that the reported taxon be excluded from counts of the number of taxa reported in the sample.

Rule of Use: The Exclude annotation is made on the bench sheet whenever a taxon should be excluded from counts of the number of taxa reported in the sample. This annotation is employed when three conditions co-exist:

The identification is not at the species-level (e.g., Pleustidae or Polydora sp).

And

The reported taxon is represented in the sample by other members of its taxon, which have been identified at lower levels.



And

The taxonomist cannot determine if the specimen is distinct from the other members of its taxon represented in the sample.

It is necessary that the taxonomists make this evaluation during sample analysis (i.e., by annotation of the bench sheet). It cannot be effectively applied after the fact, as there is no way of determining later whether the third criterion for use was met.

TABLE GUIDELINES:



  • The combination of StationID, Replicate, SampleDate, Subcore, Species, and LabCode will ensure that each record in the table is unique.

  • This file can be named at the discretion of the user; however the excel sheet tab must be named tblInfaunalAbundance for submission to the Bight’08 online system.

EXAMPLE DATA:

Table Structure:



tblInfaunalAbundance

Field Name

Type

Required

Size

Description

StationID

Text

Y

25

A geographic location label from tblStations.

SampleID

Text

N

10

The laboratory internal sample identifier if any.

Replicate

Integer

Y




The sequential number of the grab. The field may contain a one if there are no replicates.

SampleDate

Date/Time

Y




The date the sample was collected expressed as dd-mmm-yyyy

Subcore

Text

Y

10

The subcore the sample represents (A, B or C). The default is “None”.

Species

Text

Y

50

The species of infauna collected from luList09_SpeciesList.

Qualifier

Text

N

10

Any qualifier pertaining to the abundance from luList11_QualifierCodes (special case p for colonials to indicate their presence only).

Abundance

Integer

Y




The number of individuals (0 for colonials).

Exclude

Yes/No

Y




Flag to exclude from the analysis.

LabCode

Text

Y

15

The agency code from luList01_AgencyCodes.

ScreenSize

Text

Y

3

Sieve size in mm. The default for this project is 1.0.

ScreenSizeUnits

Text

Y

15

From luList28_units. The default will be millimeters (mm)

Voucher

Integer

N




The number of animals vouchered of this species from this station.

Comments

Text

N

100

Additional comments.

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