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Macroinvertebrate Sampling Component Information |
| Macroinvertebrate Database Browser This page was created on 5-10-2009 . |
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MACROINVERTEBRATE LIABILITY DISCLAIMER AND FORMAT DESCRIPTION
Disclaimer
These data have been generated by State agencies under contract with the
Department of the Interior and the Upper Midwest Environmental Sciences Center
(UMESC). Although these data have been processed successfully on a computer
system at the UMESC, no warranty, expressed or implied, is made regarding the
accuracy or utility of the data on any other system or for general or
scientific purposes, nor shall the act of distribution constitute any such
warranty. Error correction is a continuing process, and UMESC corrects data
data errors routinely when a correct value can be determined. UMESC does not
delete questionable data when the correct value cannot be determined, but
attempts to mark such data with an appropriate flag. Users are strongly
cautioned to check the accuracy of any data obtained and to report suspected
values to UMESC. Methods, purposes, and conditions can vary dramatically
among data-collecting efforts and these data should not be combined with other
datasets from the UMESC or other sources unless the user fully understands the
procedures and purposes used to create each set of data and can verify that
data are comparable across sources.
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MACROINVERTEBRATE TREND ANALYSIS DATA
Annual macroinvertebrate monitoring on the Upper Mississippi River System
(UMRS) was implemented in 1992 under the Long Term Resource Monitoring Program
(LTRMP). Mayflies (Ephemeridae), fingernail clams (Sphaeriidae), and the
exotic Corbicula species were selected for monitoring. Midges (Chironomidae)
were added to the monitoring scheme in 1993, with the addition of zebra
mussels (Dreissena polymorpha) in 1995. Mayflies, fingernail clams, and
midges, found in the soft-sediment substrate, were chosen because they play an
important ecological role in the UMRS. The exotic Corbicula species and zebra
mussel were chosen for sampling because of possible detrimental impacts they
may have on the economy and biology of the UMRS.
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FOREWARD
Use of LTRMP Trend Data for Macroinvertebrate Monitoring
The sampling design for macroinvertebrates is relatively simple; however, all
potential users of these data are strongly encouraged to read and understand
the Macroinvertebrate Monitoring section of the LTRMP Procedures Manual (Thiel
and Sauer 1999), which describes current procedures, before undertaking any
analysis or interpretation of data. This document is accessible by request
from:
Macroinvertebrate Coordinator
Upper Midwest Environmental Sciences Center
U.S. Geological Survey
2630 Fanta Reed Road
La Crosse, WI 54603
USA
Tel: (608) 783-7550, ext. 64
Fax: (608) 783-8058
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SUMMARY
LTRMP Macroinvertebrate Sampling Design
The LTRMP conducts annual monitoring of macroinvertebrates in six study areas
of the Upper Mississippi River System: Navigation Pools 4, 8, 13 and
26, and an unimpounded reach near Cape Girardeau, Missouri, on the Upper
Mississippi River; and La Grange Pool on the Illinois River. The LTRMP
conducts highly standardized macroinvertebrate sampling in main channel
border, side channel, contiguous (to the main channel or side channels)
backwater, and impounded aquatic areas in each study areas. Sampling is
conducted using a standard Ponar grab dredge (Wildlife Supply Company,
Saginaw, Michigan).
Sampling is based on a stratified random design and is conducted at
approximately 125 sites in each study reach. The aquatic areas serve a
strata. Sites include a few locations where benthic samples were collected
historically. Each field station is required to conduct macroinvertebrate
sampling at the same time each year, prior to mayfly emergence.
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REFERENCES
Thiel, P. A., and J. S. Sauer. 1999. Long Term Resource Monitoring Program
Procedures: Macroinvertebrate Monitoring. U.S. Geological Survey,
Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin,
Revised May 1999. LTRMP 95-P002-2 (Revised 1999) 7pp. + Appendixes A-H.
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INVERTEBRATE FIELD FORMATS
1992 DATA OR EARLIER IS SORTED BY DATE, SAMPLE GRID, UTM EASTING,
AND UTM NORTHING IN THAT ORDER.
1993 DATA OR LATER IS SORTED BY BARCODE ONLY.
THE "FORMAT" COLUMN CONTAINS THE FOLLOWING FORMAT SPECIFIERS:
"a": alpha character (always UPPER case);
"b": a blank space;
"blank": a missing value;
"c": alpha character/symbol/digit;
"c(xx)": character string where xx represents the maximum
numberof characters allowed;
"9": any digit, 0 - 9;
"MM/DD/YYYY": date format;
"HH:MI": time format;
|
| Field Name | Field Size | Value Range |
| --------------------- | ---------------------- | ---------------- |
| BARCODE | 8 | 99999999 |
| SAMPLE GRID | 5 | 99999 |
| DATE | 10 | MM/DD/YYYY |
| FIELD STATION NUMBER | 1 | 9 |
| HABITAT CLASS | 5 | aaa-a |
| RIVER MILE | 5 | c99.9 |
| SUBSAMPLE TAKEN | 1 | c |
| UTM ZONE(UMESC) | 2 | 99 |
| UTM EASTING (UMESC) | 6 | 999999 |
| UTM NORTHING (UMESC) | 7 | 9999999 |
| DEPTH | 4 | 99.9 |
| CONTAINERS | 2 | 99 |
| SUMMARY CODE | 1 | 9 |
| GEAR CODE | 1 | a |
| LAB SAMPLE TAKEN | 1 | a |
| % SUBMERSED/FLOATING LEAF VEG (Ponar) | 1 | 9 |
| PREDOMINANT SUBSTRATE | 1 | 9 |
| SHELLS | 1 | c |
| DETRITUS | 1 | c |
| FINE ORGANIC MATERIAL | 1 | c |
| SUBMERSED VEGETATION | 1 | 9 |
| FLOATING LEAF | 1 | 9 |
| EMERGENT VEGETATION | 1 | 9 |
| OPEN WATER | 1 | 9 |
| MAYFLIES | 4 | 9999 |
| FINGERNAIL CLAMS | 4 | 9999 |
| CORBICULA | 4 | 9999 |
| MIDGES | 4 | 9999 |
| ZEBRA MUSSELS | 4 | 9999 |
| DRAGONFLIES DAMSELFLIES | 1 | a |
| STONEFLIES | 1 | a |
| CADDISFLIES | 1 | a |
| AQUATIC FLIES | 1 | a |
| FRESHWATER MUSSELS | 1 | a |
| AQUATIC WORMS LEECHES | 1 | a |
| FRESHWTR SHRIMP CRAYFISH | 1 | a |
| SCUDS | 1 | a |
| SNAILS | 1 | a |
| COMMENTS | 80 | a(80) |
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HISTORICAL SUMMARY | |
| FIELD NAME | YEARS USED |
| ----------------- | --------------- |
| BARCODE | 1993 TO 2004 |
| SAMPLE GRID | 1992 TO 2004 |
| DATE | 1992 TO 2004 |
| FIELD STATION NUMBER | 1992 TO 2004 |
| HABITAT CLASS | 1992 TO 2004 |
| RIVER MILE | 1993 TO 2004 |
| SUBSAMPLE TAKEN | 1994 TO 2004 |
| UTM ZONE (UMESC) | 1992 TO 2004 |
| UTM EASTING (UMESC) | 1992 TO 2004 |
| UTM NORTHING (UMESC) | 1992 TO 2004 |
| DEPTH | 1992 TO 2004 |
| CONTAINERS | 1993 TO 2004 |
| SUMMARY CODE | 1992 TO 2004 |
| GEAR CODE | 1992 TO 2004 |
| LAB SAMPLE TAKEN | 1992 TO 2004 |
| %SUBMERSED/FLOATING LEAF VEG (Ponar) | 1992 TO 2004 |
| PREDOMINANT SUBSTRATE | 1992 TO 2004 |
| SHELLS | 1993 TO 2004 |
| DETRITUS | 1993 TO 2004 |
| FINE ORGANIC MATERIAL | 1993 TO 2004 |
| SUBMERSED VEGETATION | 1992 TO 2004 |
| FLOATING LEAF | 1992 TO 2004 |
| EMERGENT VEGETATION | 1992 TO 2004 |
| OPEN WATER | 1992 TO 2004 |
| MAYFLIES | 1992 TO 2004 |
| FINGERNAIL CLAMS | 1992 TO 2004 |
| CORBICULA | 1992 TO 2004 |
| MIDGES | 1993 TO 2004 |
| ZEBRA MUSSELS | 1995 TO 2004 |
| DRAGONFLIES DAMSELFLIES | 1998 TO 2004 |
| STONEFLIES | 1998 TO 2004 |
| CADDISFLIES | 1998 TO 2004 |
| AQUATIC FLIES | 1998 TO 2004 |
| FRESHWATER MUSSELS | 1998 TO 2004 |
| AQUATIC WORMS LEECHES | 1998 TO 2004 |
| FRESHWATER SHRIMP CRAYFISH | 1998 TO 2004 |
| SCUDS | 1998 TO 2004 |
| SNAILS | 1998 TO 2004 |
| COMMENTS | 1992 TO 2004 |
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FIELD DESCRIPTIONS | |
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BARCODE Identifying barcode for invertebrate data sheets. SAMPLE GRID Sample grid area for a collection site. Grid numbers are unique descriptors for each sample site location, and are derived from a pre-determined UTM grid system developed at UMESC. DATE The month, day, and year the site was sampled. Format is mm/dd/yyyy. FIELD STATION NUMBER Numeric code identifying the field station number. Listed below are the valid codes and their corresponding field station. 1 = Lake City, MN 4 = Brighton, IL 2 = Onalaska, WI 5 = Jackson, MO 3 = Bellevue, IA 6 = Havana, IL HABITAT CLASS Alphabetic code LTRMP habitat class description. Valid codes are as follows: BWC = Backwater contiguous IMP = Impounded MC = Main channel MCB = Main channel border SC = Side channel TDL = Tributary delta lake (Lake Pepin only) RIVER MILE The location of the site to the nearest tenth of a river mile. SUBSAMPLE TAKEN A Code describing if a subsample was taken Valid codes are as follows: 1994 TO 1996 only A = Large, Subsample(268 square centimeteters) B = Small, Subsample(162 square centimeteters) N = No, Subsample Taken 1997 - TO PRESENT Y = Yes, Subsample Taken N = No, Subsample Taken UTM ZONE (UMESC) Numeric field to record Global Positioning System (GPS) zone. LTRMP data resides in either zone 15 or 16. This zone is derived at UMESC and is then used by the collection crews to locate where they are to do their sampling. UTM EASTING (UMESC) East UTM (Universal Transverse Mercator) coordinates of collection sites. This coordinate is derived at UMESC and is then used by the collection crews to locate where they are to do their sampling. UTM NORTHING (UMESC) North UTM (Universal Transverse Mercator) coordinates of collection sites. This coordinate is derived at UMESC and is then used by the collection crews to locate where they are to do their sampling. DEPTH Water depth recorded in meters. CONTAINERS The total number of sample containers collected at the site and taken back to the lab (replaced # containers per replicate A, B, C in 1993). SUMMARY CODE A numeric code representing whether or not the sample was kept and the circumstances surrounding the decision to accept or reject. Valid codes are as follows: 1 = Sample taken 2 = Sample taken but not kept due to hard substrate 3 = Sample taken but not kept due to detritus, shells, etc. 4 = Other GEAR CODE A code representing the gear type used to collect the sample. (P = Standard Ponar). (E = Petite Ponar) LAB SAMPLE TAKEN Code if the sample was chosen for lab analysis. Valid codes are as follows: Y = Yes, sample chosen for lab analysis. N = No, sample not chosen for lab analysis. % SUBMERSED AND FLOATING LEAF VEGETATION (Ponar) This visual observation is a subjective measurement based on the column of water and sediment the Ponar falls through. A numeric code is recorded representing the percentage of submersed and floating-leaf vegetation. This field will provide data on whether or not invertebrates associated with vegetation are in the sample and the relationship of sites with and without vegetation. 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% PREDOMINANT SUBSTRATE A code to represent the qualitative observation of sediments based on visual and tactile observations at the site. Valid codes are as follows: 1 = Hard clay 2 = Silt/Clay 3 = Mostly silt/clay with sand 4 = Mostly sand 5 = Sand 6 = Gravel/rock SHELLS A code representing the percentage of dead shells in the sample wash frame. Valid codes are as follows: 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% DETRITUS A code representing the percentage of detritus (fibrous material on the surface and within the sediment) in the sample wash frame. Valid codes are as follows: 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% FINE ORGANIC MATERIAL A code indicating if fine organic material (characterized by black coloration and odor) is present in the sample. Valid codes are as follows: Y = Yes, fine organic material present N = No, fine organic material not present SUBMERSED VEGETATION A code representing the percentage of submersed vegetation within a 15-m radius from the boat. Valid codes are as follows: 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% FLOATING LEAF A code representing the percentage of floating leaf vegetation within a 15-m radius from the boat. Valid codes are as follows: 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% EMERGENT VEGETATION A code representing the percentage of emergent vegetation within a 15-m radius from the boat. Valid codes are as follows: 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% OPEN WATER A code representing the percentage of open water within a 15-m radius from the boat. Valid codes are as follows: 0 = 0% 1 = 1%-20% 2 = 21%-50% 3 = 51%-90% 4 = 91%-100% MAYFLIES The number of mayfly larvae found in the collection sample for the site. FINGERNAIL CLAMS The number of fingernail clams found in the collection sample for the site. CORBICULA The number of corbicula found in the collection sample for the site. MIDGES The number of midges found in the collection sample for the site. ZEBRA MUSSELS The number of zebra mussels found in the collection sample for the site (not started recording until 1995). DRAGONFLIES DAMSELFLIES A code representing if dragonflies or damselflies are absent (A) or present (P) in the sample (not started recording until 1998). STONEFLIES A code representing if stoneflies are absent (A) or present (P) in the sample (not started recording until 1998). CADDISFLIES A code representing if caddisflies are absent (A) or present (P) in the sample (not started recording until 1998). AQUATIC FLIES A code representing if aquatic flies are absent (A) or present (P) in the sample (not started recording until 1998). FRESHWATER MUSSELS A code representing if fresh water mussels are absent (A) or present (P) in the sample (not started recording until 1998). AQUATIC WORMS LEECHES A code representing if aquatic worms or leeches are absent (A) or present (P) in the sample (not started recording until 1998). FRESHWATER SHRIMP CRAYFISH A code representing if fresh water shrimp or crayfish are absent (A) or present (P) in the sample (not started recording until 1998). SCUDS A code representing if scuds are absent (A) or present (P) in the sample (not started recording until 1998). SNAILS A code representing if snails are absent (A) or present (P) in the sample (not started recording until 1998). COMMENTS Eighty-character field to record miscellaneous comments and observations. | |
| Last updated on:
January 13, 2005
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