Tualatin River Watershed Data Dictionary
Metadata for INVERT
Table of Contents
Identification_Information
Abstract
Purpose
Supplemental Information
Data_Quality_Information
Spatial_Data_Organization_Information
Entity_and_Attribute_Information
Detailed Description
Overview
Distribution_Information
Metadata_Reference_Section
Identification_Information
Citation_Information
Originator:
Publication_Date:
Title:
Description
Abstract
Invertebrate sampling sites
Purpose
For developing a stream Macroinvertebrate protocol
Supplemental_Information
Procedures_Used
Revisions
Reviews_Applied_to_Data
Related_Spatial_and_Tabular_Data_Sets
References_Cited
Notes
Time_Period_of_Content
Currentness_Reference
Status
Progress:
Maintenance_and_Update_Frequency
Spatial_Domain
Bounding_Coordinates
West_Bounding_Coordinate: -123.36663445
East_Bounding_Coordinate: -122.72070409
North_Bounding_Coordinate: 45.70822159
South_Bounding_Coordinate: 45.324054
Keywords
Theme
Theme_Keyword_Thesaurus: None
Theme_Keyword: invertebrate sampling sites xerces society
Place
Place_Keyword_Thesaurus: None
Place_Keyword: Tualatin
Stratum
Stratum_Keyword_Thesaurus: None
Stratum_Keyword:
Temporal
Temporal_Keyword_Thesaurus: None
Temporal_Keyword:
Access_Constraints
Use_Constraints
Data_Set_Credit
Security_Information
Security_Classification_System: None
Security_Classification: UNCLASSIFIED
Security_Handling_Description: None
Native_Data_Set_Environment: SunOS UNIX, ARC/INFO version 7.1.1
Cross_Reference
Originator: Unknown
Publication_Date:
Publication_Time:
Title:
Edition:
Geospatial_Data_Presentation_Form: map
Series_Information
Series_Name:
Issue_Identification:
Publication_Information
Publication_Place:
Publisher:
Other_Citation_Details:
Online_Linkage:
Larger_Work_Citation:
Data_Quality_Information
Attribute_Accuracy
Attribute_Accuracy_Report: See Entity_Attribute_Information
Quantitative_Attribute_Accuracy_Assessment
Attribute_Accuracy_Value: See Explanation
Attribute_Accuracy_Explanation:
Attribute accuracy is described, where present, with each
attribute defined in the Entity and Attribute Section.
Logical_Consistency_Report: Point features present.
Completeness_Report
Positional_Accuracy
Horizontal_Positional_Accuracy
Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy
Vertical_Positional_Accuracy_Report:
Lineage: See Supplemental_Information for overview.
Process_Steps
Process_Step
Process_Description: JON PROJECT COVER INVSITES /A1/TUALATIN/DATA/BIO/INVSITES_8
Source_Used_Citation_Abbreviation:None
Process_Date: 19980206
Process_Time: 1343
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: JON BUILD /A1/TUALATIN/DATA/BIO/INVSITES_83 POINT
Source_Used_Citation_Abbreviation:None
Process_Date: 19980206
Process_Time: 1343
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: JON RENAME INVSITES_83 INVSITES
Source_Used_Citation_Abbreviation:None
Process_Date: 19980206
Process_Time: 1343
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: MIKE COPY INVSITES /A4/TUALATIN/DATA/BIO/INVERT
Source_Used_Citation_Abbreviation:None
Process_Date: 19980716
Process_Time: 1608
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: KEITH DOCUMENT INVERT CREATE KEITH
Source_Used_Citation_Abbreviation:None
Process_Date: 19980825
Process_Time: 1502
Source_Produced_Citation_Abbreviation: None
Cloud_Cover
Spatial_Data_Organization_Information
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information
SDTS_Terms_Description
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 51
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 0
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains'
Point_and_Vector_Object_Count: 0
Spatial_Reference_Information
Horizontal_Coordinate_System_Definition
Planar
Grid_Coordinate_System
Grid_Coordinate_System_Name: State_Plane_Coordinate_System
Zone_Number: 5076
Planar_Distance_Units: FEET
Geodetic Model
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS1980
Entity_and_Attribute_Information
Detailed_Description
Entity_Type
Entity_Type_Label: INVERT.PAT
Entity_Type_Definition: invertebrate sampling sites
Entity_Type_Definition_Source: xerces society
Attribute:
Attribute_Label: -
Attribute_Definition: invertebrate sampling sites
Attribute_Definition_Source: xerces society
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: -
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: AREA
Attribute_Definition: Degenerate area of point
Attribute_Definition_Source: Assigned
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Degenerate perimeter of point
Attribute_Definition_Source: Assigned
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: INVERT#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Sequential unique positive integer
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: INVERT-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Integer
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition:
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Overview_Description
Entity_and_Attribute_Overview
LEVEL I ASSESSMENTS:
To develop a general evaluation of a site with Level 1 data the invertebrates ar
organisms in each order are recorded and counted. The different orders of invert
Sensitive organisms are those most sensitive to pollution and are first to disap
pollution. Orders considered sensitive are:
Mayflies (Ephemeroptera)
Stoneflies (Plecoptera
Caddisflies (Trichoptera)
Tolerant organisms are those that tolerate high levels of disturbance and pollut
includes the orders:
Aquatic worms (Oligocheata)
Leeches (Hirudinea)
Blackflies (Diptera)
Midges (Diptera)
Snails (Gastropoda)
Since level 1 assessments are primarily an educational level, different levels
provides information to say the community appears to be adequate or limited.
Sites where each of the three sensitive orders (mayflies, stoneflies, and caddis
the total organisms counted from the sample are considered adequate. If any one
more than 50% of the total in the sample the site has a limited invertebrate com
the sites further.
LEVEL II ASSESSMENTS:
Level 2 site assessments are based on family level identifications. The number o
are then used to determine metric values or scores. Metric scores are summed to
outlines the family level metrics and scoring criteria.
Raw Scoring Criteria Score
Metric Scoring Criteria Scoring Criteria Scoring Criteria Sco
5 3
Taxa Richness >18 10-18 <10 5
Mayfly Richness >4 2-4 <2
Stonefly Richness >3 1-3 0
Caddislfy Richness >4 2-4 <2
% Chironomidae <15 15-30 >30 5
% Dominance (Top 3
Taxa) <30 30-50 >50
Taxa Richness: This is the total number of invertebrate families identified from
Mayfly Richness: This is the total number of mayfly families identified from the
Stonefly Richness: This is the total number of stonefly families identified from
Caddisfly Richness: This is the total number of caddisfly families identified fr
% Chironomidae: This is the total number of chironomids in the sample divided by
multiplied by 100.
% Dominance (top 3 taxa): This is the total number of the three most abundant or
multiplied by 100.
Add up the scores for each metric to determine the total site score or biotic in
impairment as indicated below.
Score Range Stream Condition
> 23 No impairment: Passes level 2 assessment. I
disturbance.
17 – 23 Moderate Impairment: Evidence of some impairm
< 17 Severe Impairment: Fails level 2 assessment
confirm level of
impairment and potential causes.
LEVEL III ASSESSMENTS:
Level 3 assessments are based on genus/species level identifications, which prov
condition. Two analysis approaches can be used for level 3 assessments: multimet
To make accurate assessments between sites, using either multimetric or multivar
be used for each taxonomic group for all sites being compared. Because levels of
sites due to maturity of specimens or preservation quality, each data set should
Multimetric analysis:
This approach is the same as that used for level 2, except more metrics are inco
criteria for level 3 metric assessments are listed below.
Raw Scoring Criteria Score
Metric
Raw Value
Scoring Criteria
5
Scoring Criteria
3
Scorin
Taxa Richness
>35
19-35
<19
Mayfly Richness
>8
4-8
<4
Stonefly Richness
>5
3-5
3
Caddislfy Richness
>8
4-8
<2
Sensitive Taxa
>4
2-4
<2
Sed. Sen. Taxa
>2
1
0
Modified HBI
<4
4-5
>5
% Tol. Taxa
<15
15-45
>45
% Sed Tol Taxa
<10
10-25
>25
% Dominant (single taxa)
<20
20-40
>40
Taxa Richness: This is the total number of invertebrate taxa identified from the
Mayfly Richness: This is the total number of mayfly taxa identidentified from th
Stonefly Richness: This is the total number of stonefly taxa identified from th
Caddisfly Richness: This is the total number of caddisfly taxa identified from
Sensitive Taxa: This is the number of taxa identified that are known to be very
“sensitive” are listed in appendix ?.
Sediment Sensitive Taxa: These are taxa known to be very sensitive to inputs of
indicate that fine sediments are probably not a major concern.
Modified HBI: “HBI” stands for Hilsenhof Biotic Index. This is an index of a t
result of excessive nutrient inputs. Index values for individual taxa range fro
with low organic enrichment). High scores indicate low sensitivity (tolerant of
taxa are listed in the taxa list for Oregon streams in appendix ?
% Tolerant Taxa: This is the percent of the invertebrate community made up of t
are listed in appendix ?. Divide the abundance of tolerant taxa by the total nu
% Sediment Tolerant Taxa: This is the percent of the invertebrate community mad
Divide the abundance of sediment tolerant taxa by the total number of organsisms
% Dominant (single taxa): This is the total abundance of the single most abunda
sorted from the sample, multiplied by 100. A high percent of a single taxon ind
community.
After calculating each individual metric score add them together for the total s
of total scores listed below.
Score Range Stream Condition
> 39 No Impairment: Passes level 3 assessment. Indicate
disturbance.
30 – 39 Slight Impairment: Evidence of some impairment exist
20 – 29 Moderate Impairment. Clear evidence of disturbance e
< 20 Severe Impairment. Conditions indicate a high level
Multivariate Analysis:
Level 3 assessments can also be analyzed using multivariate analysis techniques.
sites) are used as a benchmark against which sites of interest (test sites), are
relatively sophisticated predictive model based upon reference conditions; and,
model predictions.
Reference sites are first grouped together to generate “reference community type
are then categorized by their geographic and geomorphologic characteristics such
function analysis is a common way to achieve this. A test site at a particular
directly against its appropriate reference community group. The model generates
impairment is made based upon the number of predicted taxa that were actually co
Although the final rating of the test site is a simple arithmetic ratio of obser
appropriate computer software. An example of how a rating is derived is given b
target reference condition.
Use both multimetric and multivariate analysis techniques when possible. This p
Test Site Assessment against Reference Condition using a Multivariate Model
Predicted Taxa
(from Reference Model) Taxa Collected at Test Site
Baetis tricaudatus Yes
Diphetor hageni Yes
Paraleptophlebia Yes
Drunella doddsi
Epeorus grandis
Sweltsa Yes
Calineuria californica Yes
Zapada cinctipes Yes
Isoperla
Moselia infuscata
Wormaldia Yes
Rhyacophila
Hydropsyche Yes
Chironomidae Yes
Hexatoma Yes
Zaitzevia Yes
Optioservus Yes
Hydracarina Yes
No. Taxa Predicted by Model: 18
No. Expected Taxa from Probability Weighting (E): 16
No. Taxa Observed at Test Site (O): 13
Observed/Expected (O/E): 81%
Entity_and_Attribute_Detail_Citation: Not Available
Distribution_Information
Metadata_Reference_Section
Metadata_Date: 19980825
Metadata_Contact:
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 19940608
Metadata_Time_Convention: Local Time
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: UNCLASSIFIED
Metadata_Security_Handling_Description: None
Last modified: 98-08-25.16:52:22.Tue
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