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  4. Water Chemistry and Smallmouth Bass Biological Data From the Potomac River, Dargan, Maryland, 2013-2019

Water Chemistry and Smallmouth Bass Biological Data From the Potomac River, Dargan, Maryland, 2013-2019

Dates

Publication Date
Start Date
2013-03-29
End Date
2019-05-23

Citation

Walsh, H.L., Gordon, S.E., Sperry, A.J., Kashiwagi, M., Mullican, J., and Blazer, V.S., 2022, Water Chemistry and Smallmouth Bass Biological Data From the Potomac River, Dargan, Maryland, 2013-2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9XZ7UWK.

Summary

Decades of poor reproductive success and young-of-the-year recruitment, in addition to adult mortality, has led to a decline in the smallmouth bass (SMB) population in subwatersheds of the Potomac River. Previous studies have identified numerous biologic and environmental stressors associated with negative effects on SMB health. To better understand the impact of these stressors, the current study was conducted from 2013-2019 to identify temporal changes associated with SMB reproductive health. Grab surface water samples were collected and analyzed for over 300 organic contaminants, including pesticides, phytoestrogens, pharmaceuticals, hormones and total estrogenicity (E2Eq). Adult SMB were collected and sampled for multiple endpoints, [...]

Contacts

Point of Contact :
Heather L Walsh
Originator :
Heather L Walsh, Stephanie E Gordon, Adam J Sperry, Michael Kashiwagi, John Mullican, Vicki S Blazer
Metadata Contact :
Heather L Walsh
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Eastern Ecological Science Center
USGS Mission Area :
Ecosystems

Attached Files

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MS5BIO~1.XML
Original FGDC Metadata
View 		117.51 KB application/fgdc+xml
Hormones.csv 2.03 KB text/csv
MS5_Biological and Liver Transcript Data.csv 19.89 KB text/csv
MS5_Testis Immune Transcript Data.csv 14.01 KB text/csv
MS5_Testis Reproductive Transcript Data.csv 10.74 KB text/csv
Pesticides.csv 5.41 KB text/csv
Pharmaceuticals.csv 4.79 KB text/csv
Phytoestrogens.csv 1.59 KB text/csv
Total E2Eq.csv 1,016 Bytes text/csv

Purpose

Smallmouth bass were from sampled the Potomac River in Dargan, Maryland (located within the Chesapeake Bay drainage) for a long-term, temporal study on reproductive health from 2013-2019 in the spring and fall. Tissues (gonad and liver) and plasma were analyzed for endpoints associated with endocrine disruption, including testicular oocytes (TO) and plasma vitellogenin (Vtg). Gene transcripts were quantified for reproduction-associated genes from the liver from both sexes and from the testis for genes associated with reproduction and immune function. Additionally, the gonadosomatic index for each fish was determined. Correlations between biological endpoints and transcripts were conducted in addition to correlation analyses with highly detected contaminants.

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Communities

  • Eastern Ecological Science Center
  • USGS Data Release Products

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9XZ7UWK

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