U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Harry K. Dupree Stuttgart National Aquaculture Research Cntr: Stuttgart, AR
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Southeast Area Stuttgart, Arkansas Harry K. Dupree Stuttgart National Aquaculture Research Cntr Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications
- IACUC Summary

Title:   Author  item
                                            Ledbetter, Cynthia

                                                         - *Cindy*item
                                            Farmer, Bradleyitem
                                            Beck, Benjaminitem
                                            SUMMERLIN, CURTIS - Mississippi Department Of Wildlife, Fisheries, And Parksitem
                                            Straus, David

                                                         - *Dave*
  Submitted to: Aquaculture America 2015-Book of Abstracts
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 12/26/2014
                                    Publication  Date: 2/19/2015
                                    Citation: Ledbetter, C.K., Farmer, B.D., Beck, B.H., Summerlin, C., Straus, D.L. 2015. Copper toxicity in aquaculture: A practical approach [abstract]. Aquaculture America 2015-Book of Abstracts. p. 276.Interpretive Summary:
                                Technical Abstract: Copper sulfate is used as a therapeutant for various applications in aquaculture.  There is a great deal of information on the toxicity of copper, especially in low-alkalinity waters; however, much of this information is fragmented, and a comprehensive guide of copper toxicity and safe concentrations in various water chemistries is not available.  Historical data does not always include alkalinity, which is crucial when determining toxicity.  This data would be particularly useful across a wide range of species.
Experiments have been initiated to observe the toxicity and safe levels of copper sulfate in 5 reconstituted waters, per APHA methods, on several species of fish, bacteria, parasites and algae.  The alkalinity of these synthetic waters ranges from 10 – 245 mg/L, and the hardness ranges from 10 – 320 mg/L (each as CaCO3).  Data include a 48h LC50 value for each species in each water as well as the No Observed Effect Concentration (NOEC) and Lowest Observed Effect Concentration (LOEC).  Histology will be used to compare the control fish to the NOEC and LOEC fish.  This baseline information can be used to approximate safe treatment levels; however, application must be tailored to fit specific species and individual water quality and chemistry.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov