Arctic LTER Database

Conditions of Use

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Acceptable use. Use of the dataset will be restricted to academic, research, educational, government, recreational, or other not-for-profit professional purposes. The Data User is permitted to produce and distribute derived works from this dataset provided that they are released under the same license terms as those accompanying this Data Set. Any other uses for the Data Set or its derived products will require explicit permission from the dataset owner.
2 ) Redistribution. The data are provided for use by the Data User. The metadata and this license must accompany all copies made and be available to all users of this Data Set. The Data User will not redistribute the original Data Set beyond this collaboration sphere.
3 ) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier. For example:

Shaver, G. 1989. Above ground biomass in acidic tussock tundra experimental site, 1989, Arctic LTER, Toolik, Alaska. Arctic LTER, Marine Biological Lab, Woods Hole, Ma 02543. 1989gsttbm http://ecosystems.mbl.edu/arc/terrest/biomass/index.shtml 

4 ) Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example:

Data sets were provided by the Arctic LTER. This material is based upon work supported by the National Science Foundation under Grants #DEB-981022, 9211775, 8702328; #OPP-9911278, 9911681, 9732281, 9615411, 9615563, 9615942, 9615949, 9400722, 9415411, 9318529; #BSR 9019055, 8806635, 8507493.

5 ) Notification. The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
6 ) Collaboration. The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

By accepting this Data Set, the Data User agrees to abide by the terms of this agreement. The Data Owner shall have the right to terminate this agreement immediately by written notice upon the Data User's breach of, or non-compliance with, any of its terms. The Data User may be held responsible for any misuse that is caused or encouraged by the Data User's failure to abide by the terms of this agreement.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Dataset URLs:	METADATA: HTML, Rich Text, XML(EML compliant) DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:	91rumzoo.3
Dataset Title:	Biomass and numbers of microplankton (20-200um) in Arctic LTER lakes, including ciliated protozoans, rotifers and nauplii, Arctic LTER, summer 1991.
Investigator 1:
First Name:	Parke
Last Name:	Rublee
Organization:	The University of North Carolina- Greensboro
Address line 2:	Department of Biology
Address line 3:
City:	Greensboro
State:	NC
Zip Code:	27402-6170
Country:	USA
Investigator 2:
First Name:	Neil
Last Name:	Bettez
Organization:
Address line 2:
City:
State:
Zip Code:
Country:
Associate Investigators:
Keywords:	microplankton, protozoans, rotifers, nauplii
Abstract:	Biomass and numbers of microplankton (20-200um) in Arctic LTER lakes, including ciliated protozoans, rotifers and nauplii.
For questions about the Metadata and data contact the Investigators. For information about this web site contact:	Arctic LTER Information Manager The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole, MA 02543 Phone (508) 289 7496 Email: arc_im@mbl.edu Online URL: http://ecosystems.mbl.edu/ARC/
DATA FILE INFORMATION:
Data File URL	http://metacat.lternet.edu/das/dataAccessServlet?docid=knb-lter-arc.956&urlTail=lakes/plankton/data/91rumzoo.csv
Data File Name	91rumzoo.xls
Beginning Date	5/1/1991
End Date	9/1/1991
Number of Data Records	120
Other Files to Reference
Availability Status
Quality Control Information
Maintenance Description
Log of Changes:	Log of changes: For Archival Use: DATE RECEIVED: DATA FILE ENTERED BY: DATA FILE VALIDATION: NAME: DATE:
	Version 3: Updated metadata sheet to newer version (with sites sheet). CH April 2013.

RESEARCH LOCATION:
Location Name	N 01	N 02	S 06	S 07	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One	Select Site or enter New One
Geographic Description	N1	Lake N2; reference and fertilized side	S6	S7	Enter Description	Enter Description	Enter Description	Enter Description
Location Bounding Box
West Bounding Coordinate
East Bounding Coordinate
North Bounding Coordinate
South Bounding Coordinate
OR if single point location
Latitude	68.6398939358	68.6409472345	68.6293797816	68.6300627447	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees
Longitude	-149.606965643	-149.625086307	-149.641623295	-149.644441789	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees	In Decimal Degrees
Elevation	731	724	731	731	In Meters	In Meters	In Meters	In Meters
Link to Google Map	View on Google Map	View on Google Map	View on Google Map	View on Google Map

TAXONOMIC COVERAGE:
Organisms studied
Methods:	Samples were taken with a Van Dorn bottle, emptied into a bucket, and 2 to 2.5 l was gently reverse-flow concentrated through a 20 um Nitex net. A final volume of 60 ml was preserved with glutaraldehyde to a final concentration of 1%. All samples were stored refrigerated until direct counting according to the method of Baldock (1989). Briefly, 5 - 15 ml was stained with Rose Bengal, drawn onto an 8.0 um pore cellulose acetate filter, mounted in 47% sucrose solution and the entire filter surface examined at 100x to 400x magnification. Individual protozoans and rotifers were identified to finest practical taxanomic level; nauplii were simply enumerated. Notes: This file is currently incomplete: data for other lakes is yet to be added. Reference Citations: Baldock, B.M. 1986. A method for enumerating protozoa in a variety of freshwater habitats. Microb. Ecol. 12:187-191. Makarewicz, J.C. and G.E. Likens. 1979. Structure and function of the zooplankton community of Mirror Lake, N.H. Ecol. Monogr. 49:109-127. Pauli, H.-R. 1989. A new method to estimate individual dry weights of rotifers. Hydrobiol. 186/187:355-361. Putt, M. and D.K. Stoecker. 1989. An experimentally determined carbon:volume ratio for marine "oligotrichous" ciliates from estuarine and coastal waters. Limnol. Oceanogr. 34:1097-1104. Ruttner-Kolisko, A. 1974. Plankton rotifers. Biology and taxonomy. Die Binnengew„sser, Suppl. Vol. XXVI, part 1. Ruttner-Kolisko, A. 1977. Suggestions for biomass calculation of plankton rotifers. Arch. Hydrobiol. 8:71-76. Sampling Description. Sampling locations are designated by the lake sitecode numbers. All samples were taken at the "main" station - that normally used for synoptic sampling of nutrients, zooplankton etc. For lakes where samples are not routinely taken, samples were taken from the deepest known location in the lake. All Biomass values are calculated based on measured biovolumes in preserved samples and literature conversion values from biovolume to carbon. For protozoans, individuals are placed into size categories, and a mean biovolume is then estimated by appropriate geometric formulas for volumes of a cone or sphere. Protozoan biovolume is converted to protozoan biomass using a conversion factor of 0.14 pg C æm-3 (Putt and Stoecker 1989). For individuals of each species were derived from direct measurements of dimensions and appropriate conversion factors to biomass derived from Ruttner-Kolisko (1977), Makarewicz and Likens (1979), and Pauli (1989).

Data Table

Variable Name	Variable Description	Data Type	Units	DateTime Format	Code Information	Missing Value Code
Site Code	Site code, LTER Code	text				.=Missing or Not Measured
Site	Site Name	text				.=Missing or Not Measured
Station	Location of sampling in lake	text				.=Missing or Not Measured
Julian Date	Julian date YYDDD	datetime		YYDDD		.=Missing or Not Measured
Depth	sample depth	number	meter			.=Missing or Not Measured
Protozoa	Number of Protozoa/liter	number	numberPerLiter			.=Missing or Not Measured
Protozoa Carbon Biomass	ugC/l y	number	microgramPerLiter			.=Missing or Not Measured
Rotifers	Rotifers/liter	number	numberPerLiter			.=Missing or Not Measured
Rotifer Carbon	Rotifer Biomass ugC/L	number	microgramPerLiter			.=Missing or Not Measured
Nauplii	Nauplii/liter	number	numberPerLiter			.=Missing or Not Measured
Nauplius carbon	Nauplius Biomass ugC/L	number	microgramPerLiter			.=Missing or Not Measured
oligotri	Oligotrich protozoans	number	numberPerLiter			.=Missing or Not Measured
peritrich	Peritrich protozoans	number	numberPerLiter			.=Missing or Not Measured
other	Other protozoans	number	numberPerLiter			.=Missing or Not Measured
K. coch.	Keratella cochlearis	number	numberPerLiter			.=Missing or Not Measured
K. quad.	Keratella quadrata	number	numberPerLiter			.=Missing or Not Measured
Kellico	Kellicottia longispina	number	numberPerLiter			.=Missing or Not Measured
Polyar	Polyarthra vulgaris	number	numberPerLiter			.=Missing or Not Measured
Chromo	Chromogaster ecaudis	number	numberPerLiter			.=Missing or Not Measured
Synchaet	Synchaeta sp.	number	numberPerLiter			.=Missing or Not Measured
C. unic.	Conochilus unicornis	number	numberPerLiter			.=Missing or Not Measured
C. natans	Conochilus natans	number	numberPerLiter			.=Missing or Not Measured
Filinia	Filinia longiseta	number	numberPerLiter			.=Missing or Not Measured
Gastrop.	Gastropus stylifer	number	numberPerLiter			.=Missing or Not Measured
	Please contact arc_im@mbl.edu with questions, comments, or for technical assistance regarding this web site.