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Dissolved oxygen fluctuations in karst spring flow and implications for endemic species: Barton Springs, Edwards aquifer, Texas, USA

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Dissolved oxygen fluctuations in karst spring flow and implications for endemic species: Barton Springs, Edwards aquifer, Texas, USA; 2013; Article; Journal; Journal of Hydrology; Mahler, Barbara J.; Bourgeais, Renan

Summary

Karst aquifers and springs provide the dissolved oxygen critical for survival of endemic stygophiles worldwide, but little is known about fluctuations of dissolved oxygen concentrations (DO) and factors that control those concentrations. We investigated temporal variation in DO at Barton Springs, Austin, Texas, USA. During 2006–2012, DO fluctuated by as much as a factor of 2, and at some periods decreased to concentrations that adversely affect the Barton Springs salamander (Eurycea sorosum) (≤4.4 mg/L), a federally listed endangered species endemic to Barton Springs. DO was lowest (≤4.4 mg/L) when discharge was low (≤1 m3/s) and spring water temperature was >21 °C, although not at a maximum; the minimum DO recorded was 4.0 mg/L. Relatively [...]

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  • National and Regional Climate Adaptation Science Centers
  • South Central CASC

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Harvested on Mon Jul 21 12:00:57 MDT 2014 from MODS XML Service

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Type Scheme Key
local-index unknown 70048695
local-pk unknown 70048695
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/j.jhydrol.2013.10.004
series unknown Journal of Hydrology

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citationTypeArticle
journalJournal of Hydrology
languageEnglish
parts
typevolume
value505

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