Study Number: 

3016

Project Title:

Age, growth and reproduction of mottled sculpin (cottus bairdi) in the Coweeta creek drainage.

Investigator(s):

Gary Grossman E-Mail | Tel. (706) 542-1160 | Biographical Sketch
 Kathleen McDaniel E-mail
Affiliated Institution(s): University of Georgia
Address: Warnell School of Forest Resources
University of Georgia
Athens, Georgia 30602   USA
Study Category: Aquatic
Project Type: Type 1
Study Period:

02/1993 - 08/1998
Notes:

 
Funding Source(s):

National Science Foundation, Grants DEB-9632854 (Text Version) and DEB-0218001 (Text Version) to Coweeta LTER.
Abstract: Cottus bairdi were collected from Shope Fork and Ball Creek in early spring prior to spawning. We are determining age and length specific fecundities from analysis of whole ovaries. We are also investigating whether are age or length specific differences exist in egg size. We are determining sex specific growth rates back-calculation of age at length from otolith analysis.
Location(s), Described: Watershed 9 Ball Creek 100m section above road 83-b.
Watershed 8 Shope Fork 100m section immediately above confluence at Coweeta Creek (maps of sites on file with Coweeta personnel).
Location(s), Download GPS: ArcView Shape Files (shp.):  UTM, NAD83, Zone 17  |  Lat/Lon
Location(s), Online Map(s): USGS Topographic-based Maps of Research Sites
(Printable for fieldwork)
Methods/Experimental Design: Samples were collected using backpack electroshocking in early spring.
Sampling Frequency: Fish were collected in early spring in 1993, 1994, 1995, 1997, and 1998. Fish were also collected in the fall of 1997.
Data Columns: Fecundity data:
Fishno - fish identification number
Year - year
Date - date (month & day)
Creek - creek collection location
Age - age of individual in years determined using otoliths microscope,scalpel
Toteggs - total number of eggs
Lg - length of individual using wet measure length board(±0.5mm); millimeters (mm)
Wtt - weight of individual using wet measure balance(±0.0005g); grams (g)
Ovwt - ovary weight; grams (g)
Somwt - somatic bidy weight; grams (g)

Egg sizes:
Fish id # - fish identification number
Stand length - fish length; millimeters (mm)
total # eggs (1 ovary) - total # of eggs counted in 1 ovary
Lg eggs ( > 1.0 mm) - total # of large eggs (> 1.0 mm) counted in 1 ovary
Smeggs ( < 1.0 mm) - total # of small eggs (< 1.0 mm) counted in 1 ovary
Egg size class - size class of eggs small = < 1.0 mm / large = > 1.0 mm
Egg diameter - egg diameter in (mm)
Note: only sub samples of eggs were measured

Missing Data Codes: . (Period)
Publications:

Grossman, G.D., K. McDaniel, and R.E. Ratajczak Jr. 2002. Demographic characteristics of female mottled sculpin, Cottus bairdi, in the Coweeta Creek drainage, North Carolina. Environmental Biology of Fishes 63: 299-308.
Data Restrictions: Users must adhere to the Coweeta LTER Data Policy.
Metadata: EML Format (XML Schema) | Information about EML
Data Downloads: Fecundity data:
 Microsoft® Excel (.xls)  |  Text Comma Delimited (.csv)  |  DBase (.dbf)

Egg sizes:
 Microsoft>® Excel (.xls)  |  Text Comma Delimited (.csv)  |  DBase (.dbf)