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Main Title Effect of selenium on juvenile Bluegill Sunfish at reduced temperature /
Author D. O. MCINTYRE ; M. A. Pacheco ; M. W. Garton ; D. WALLSCHLAGER ; C. G. Delos
CORP Author Great Lakes Environmental Center, Traverse City, MI.; Trent Univ., Peterborough (Ontario). Environmental and Resource Sciences Program.; Environmental Protection Agency, Washington, DC. Health and Ecological Criteria Div.
Publisher U.S. Environmental Protection Agency, Office of Water,
Year Published 2008
Report Number EPA-822-R-08-020
Stock Number PB2009-102136
OCLC Number 263872136
Subjects Sunfishes ; Selenosis
Additional Subjects Low temperature ; Selenium ; Water pollution effects ; Water quality ; Fishes ; Bluegill sunfish ; Water quality criteria
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKCD  EPA-822-R-08-020 CEMM/GEMMD Library/Gulf Breeze,FL 04/13/2011
ELBD ARCHIVE EPA 822-R-08-020 AWBERC Library/Cincinnati,OH 05/13/2021
NTIS  PB2009-102136 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation [63] : digital, PDF file
The final chronic value of 7.91 mu g/g dw recommended in the 2004 Draft Update of the Aquatic Life Ambient Water Quality Criteria for Selenium is based on one study (Lemly 1993), in which juvenile bluegill underwent 'winter stress syndrome'. Data from Lemlys study indicate that over-wintering fish may be more susceptible to the effects of waterborne and dietary selenium exposure due to increased sensitivity at low temperature. Lemly exposed juvenile bluegill sunfish in the laboratory to waterborne (1:1 selenite:selenate; nominal 5 mu g Se/L) and food borne (seleno-L-methionine in TetraMin; nominal 5 mu g Se/g dw food) selenium for 180 days with temperatures decreasing from 20 to 4 degrees C. Given the importance of the data from the Lemly study in deriving the tissue-based final chronic value for selenium, the goal of this study is to determine tissue-based effect levels for selenium exposure over a simulated winter season at two temperature regimes, 20 to 4 degrees C and 20 to 9 degrees C. Besides the additional temperature regime, two prominent differences from the Lemly study include (1) a range of six selenium concentrations was included (aqueous and diet) to determine protective effect levels and (2) bluegill were fed the aquatic worm, Lumbriculus variegatus, which contained target levels of selenium accumulated by feeding the worms selenized-yeast. A separate system exposed juvenile bluegill to aqueous selenium and seleno-Lmethionine in TetraMin under a 20 to 4 degrees C temperature regime to mimic the Lemly study exposure design. The 182-day study began on April 30, 2007 and ended October 29, 2007.
"EPA-822-R-08-020." "September 2008." Title from title screen (viewed Oct 27, 2008).