LUQ LTER DATA SETS DOCUMENTATION FORM
ON-LINE VERSION
A DATA SET is a series of observations collected by the same methodology. Each data set should have documentation sufficient for someone unfamiliar with the research to replicate the study. Data sets may be broken into subsets (data files) that are discrete in space and time, in that order. The documentation for a data set should include all spatial and temporal subdivisions of the data.
(Data, Abstract, Methods, Variables)
NOTES:
PERSON(S) COMPLETING THIS FORM: E-MAIL ADDRESS:
| Mark Pyron | mpyron@bsu.edu |
DATA SET IDENTIFIER: Shrimp and stream pool raw data
PROJECT DESCRIPTION: Effects of woody debris and pool morphology on shrimp: we added woody debris to stream pools in three streams in an experiment designed to increase cover for freshwater shrimp. We trapped four species of freshwater shrimp during 4 months following wood additions. Stream pool morphology was estimated using maximum depth, surface area, and volume.
LTER CORE AREAS: (Annotate all that apply)
| Population Dynamics |
LEF LTER 1 RESEARCH TOPIC: (Annotate all that apply)
| Spatial and Temporal Distribution of Populations |
We define a data file as a component of a data set. A data set can have only
one data file or more. Basically, different data files have different data structures
or format.
DATA SET FILES (SUBSETS):
|
Data File No. |
Data File Identifier |
On-Line Filename |
Starting Date |
Periodicity of sample |
End Period |
|
|
Shrimp and pool data(Feb - May 1995) | ShrimpsandPoolraw.txt | February 1995 | Monthly | May 1995 |
RESEARCH LOCATION: Quebrada Prieta (15 pools), Quebrada Bisley 3 (12 pools) and Quebrada Bisley 5 (12 pools)
INVESTIGATORS:
PRINCIPAL INVESTIGATORS E-MAIL
address
|
Mark Pyron |
OTHER RESEARCHERS E-MAIL address
Mark Pyron |
|
CONTACT PERSONS E-MAIL address Phone Number (Include area code)
| Alan Covich | acovich@lternet.edu | (303)491-2372 |
SOURCE OF FUNDING (SPONSOR): NSF
DATA SET ABSTRACT: We added woody debris to stream pools in three streams in an experiment designed to increase cover for freshwater shrimp. We trapped four species of freshwater shrimp during 4 months following wood additions. Stream pool morphology was estimated using maximum depth, surface area, and volume.
DATA SET METHODS: Shrimp were trapped monthly for four months following woody debris additions in February 1995. Stream pools were selected, woody debris added to half of pools, and shrimp were monitored in three streams: Prieta (15 pools), Bisley 3 (12 pools) and Bisley 5 (12 pools).
Data are presented by pool number, stream (1 = Prieta, 2 = Bisley 3, 3 = Bisley 5), treatment (wood addition or not), average number of shrimp species per trap, maximum depth of pool, pool surface area, pool volume, and scores for substrata, leaves and current.
REFERENCES:
CROSS-REFERENCES (other data sets related to this one): LTERDBAS#54
: Shrimp populations in Quebrada Prieta (Pools 0,1), (El Verde)
SAMPLE LOCATION: N/A
STORAGE SITES (of data files): ITES Data Mngr.'s Cabinet DM333-01 Dr. #1
INVESTIGATOR'S ASSIGNED KEYWORDS: shrimp, woody debris, stream pool
LEF LTER OFFICIAL KEYWORDS (See table): EL VERDE, Q PRIETA, BISLEY 3, BISLEY 5, HEADWATER STREAM, DISTURBANCE, POPULATION DYNAMICS, AQUATIC, DECAPODS, PEER REVIEWED JOURNAL
PUBLICATIONS:
Pyron, M., A. P. Covich, and R. W. Black. 1999. On the relative importance of
pool morphology and woody debris to distributions of shrimp in a Puerto Rican
headwater stream. Hydrobiologia 405:207-215.
DISSEMINATION: UNRESTRICTED
REASONS TO RESTRICT DATA IN THIS DATA SET BEYOND ITS TWO YEAR POLICY PERIOD*:
*WILL HAVE TO BE APPROVED BY LTER PRINCIPAL INVESTIGATORS: N. BROKAW, A. LUGO
SITES DESCRIPTIONS: The study site is at El Verde Field Station (N 18° 19'22", W 65° 49'13") of the Institute for Tropical Ecosystem Studies (ITES) of the University of Puerto Rico. The station is located at the eastern end of Puerto Rico in the Luquillo Experimental Forest (LEF).
Geographical positional system (GPS) Coordinates for each location:
location |
latitude |
longitude |
| El Verde Study Area (Quebrada Prieta Pools) | 65° 49’13" W | 18° 19’22" N |
| Bisley 3 (12 pools) | ||
| Bisley 5 (12 pools) |
|
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 | 1 | 1 |
|
ABBREVIATION (as it appears on the data file) |
POOL | STREAM | TREAT | ATYA | XIPH | SMMAC |
|
NAME OF VARIABLE |
Stream pool | Stream name | Woody debris treatment | Average number of Atya shrimps per trap | Average number of Xiphophorus shrimps per trap | Average number of Small Macrobrachium shrimps per trap |
|
DEFINITION OF VARIABLE |
Pool code representing the pool from one of the three streams were the shrimps were monitored. Prieta has 15 pools, Bisley 3 has 12 and Bisley 5 has 12 pools. There are no missing data. | Stream code representing one of the three streams were the shrimps were monitored. There are no missing data. | Code representing the addition ( placed parallel to flow) or not of woody debris to the monitored pool. There are no missing data. | Average number of Atya (Atya lanipes Holthuis) shrimps trapped in the pool for the entire period. There are no missing data. | Average number of Xiphophorus
(Xiphocaris elongata -Guérin-Méneville-) shrimps trapped in the pool for the entire period. There are no missing data. |
Average number of Small
(less than or equal to 25 mm carapace length) Macrobrachium (M. carcinus -Linnaeus- and M. crenulatum Holthuis) shrimps trapped in the pool for the entire period. There are no missing data. |
|
UNIT |
||||||
|
PRECISION |
||||||
|
RANGE OR LIST OF VALUES |
1-23 | 1 = Prieta, 2 = Bisley 3, 3 = Bisley 5 |
1=
wood addition, 0 = no addition |
|||
|
DATA TYPE |
integer | integer | integer | decimal | decimal | decimal |
|
MISSING DATA CODES |
|
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 | 1 | 1 |
|
ABBREVIATION (as it appears on the data file) |
LGMAC | MAXDEP | AREA | VOL | BOULDER | ROCK |
|
NAME OF VARIABLE |
Average number of Large Macrobrachium shrimps per trap | Maximum depth | Surface area | Pool volume | Boulder score | Rock score |
|
DEFINITION OF VARIABLE |
Average number of large
(greater than 25 mm carapace length) Macrobrachium (M. carcinus -Linnaeus- and M. crenulatum Holthuis) shrimps trapped in the pool for the entire period. There are no missing data. |
Maximum depth of pool. There are no missing data. | Pool surface area, calculated by summing the products of width transects and the average lengths of each width transect. (Pool widths were measured at 0.5 m intervals, 2–5 depths along each width transect and maximum depth). There are no missing data. |
Pool volume, calculated by multiplying surface area by mean depth.There are no missing data. |
Estimated boulder (>20 cm diameter)composition of substrata within the pool by placing |
Estimated cobble (<20, >5 cm diameter) composition of substrata within the pool by placing a finger on the substrata at 25 inspection points distributed widely within each pool, assigning it as cobble and then converting the total of cobble points in the pool to a percentage. There are no missing data. |
|
UNIT |
centimeter | squareMeter | cubicMeter | |||
|
PRECISION |
0.1 | 0.1 | 0.1 | 0.1 |
0.1 |
|
|
RANGE OR LIST OF VALUES |
||||||
|
DATA TYPE |
decimal | decimal | decimal | decimal | decimal | decimal |
|
MISSING DATA CODES |
none | none | none | none | none | none |
|
FILE NAME OR #ABOVE (all in which the variable appears) |
1 | 1 | 1 | 1 |
|
ABBREVIATION (as it appears on the data file) |
GRAVEL | SILT | LEAVES | CURRENT |
|
NAME OF VARIABLE |
Gravel score | Silt score | Leaves score | Current estimate |
|
DEFINITION OF VARIABLE |
Estimated gravel (<5 cm diameter) composition of substrata within the pool by placing a finger on the substrata at 25 inspection points distributed widely within each pool, assigning it as gravel and then converting the total of gravel points in the pool to a percentage. There are no missing data |
Estimated silt (fine sediment) composition of substrata within the pool by placing a finger on the substrata at 25 inspection points distributed widely within each pool, assigning it as silt and then converting the total of silt points in the pool to a percentage. There are no missing data |
Estimated leaves composition of substrata within the pool by placing a finger on the substrata at 25 inspection points distributed widely within each pool, assigning it as leaves and then converting the total of leaves points in the pool to a percentage. The percent of the substrata covered by leaves was estimated and placed into 10 categories. There are no missing data |
Current velocity (seconds for fluorescein dye to move the pool length, divided by the pool length). There are no missing data. |
|
UNIT |
centimetersPerSecond | |||
|
PRECISION |
0.1 | 0.1 | 0.1 | 0.1 |
|
RANGE OR LIST OF VALUES |
||||
|
DATA TYPE |
decimal | decimal | decimal | decimal |
|
MISSING DATA CODES |
COMPUTATIONAL METHODS:
| Variable Name | Formula |
FOR DATA MANAGER USE ONLY
DATE OF LAST REVIEW:
April 27, 2009
DATE OF LAST ENTRY: 1995
STAGE OF DATA SET MANAGEMENT (dates):
RECEIVED ENTERED: 2000
FILED ON-LINE 2001
REVIEWED BY RESEARCHER
FILING MEDIA:
NAME OF DOCUMENTATION FILE: lterdb55.htm
NAME OF ON - LINE CATALOG: LTERDBAS
RECORD #: 55
DOCUMENT TYPE: magnetic media only
PRIORITY TO BE ENTERED: N/A
Rev. date of this form: 8 June 200