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Alaska Science Center Seminar Series

The USGS Alaska Science Center has a monthly seminar series that runs from November through May.  This series highlights the multiple research programs that are taking place across all disciplines at the center.

Title: The Rusting of Arctic Rivers: Assessing the influence of metal seeps from thawing permafrost on aquatic ecosystems

Date/Time: December 17, 2024 @ 10:00 am (AST)

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Join us for the 2024 - 2025 Seminar Series

 

The Rusting of Arctic Rivers: Assessing the influence of metal seeps from thawing permafrost on aquatic ecosystems

Map of Arctic rivers study sites with six stars marking sites. Three aerial images with orange streams below map.

Date: December 17, 2024 
Time: 10:00 a.m. (AK Standard Time)
Presenter: Michael Carey, Research Fish Biologist
Abstract: Widespread permafrost thaw has altered the concentration and flux of organic carbon, nutrients, and trace metals in Arctic rivers. Recent observations indicate that waters draining permafrost landscapes may be susceptible to iron and carbon mobilization following thaw. Observations suggest that orange stream reaches have higher iron concentrations (appear to be rusting), less dissolved oxygen, and more acidic water than nearby clearwater streams. The conversion of streams from clear to orange water reflects a deterioration of habitat for benthic macroinvertebrates and fish. 

 

Location: Leslie Holland-Bartels Conference Room, Glenn Olds Hall Building, 4210 University Drive, Anchorage (Click here for a map). Please park at the Carr-Gottstein Building.

Webinar information: A webinar will be available for all talks for those who cannot make it in person.  For additional details or to be added to the electronic notification list, please contact Joe Eisaguirre or Yvette Gillies.

October 2024 - April 2025 schedule 

(will update as information becomes available) 

Date Title Presenter 
October 2, 2024 @ 1:00 pm The USGS Earth Mapping Resources 
Initiative and opportunities for new 
framework geoscience data in Alaska
Jamey
Jones
November 2024 No talk this month  
December 17, 2024 @ 
10:00 am
The Rusting of Arctic Rivers: 
Assessing the influence of metal 
seeps from thawing permafrost 
on aquatic ecosystems
Mike
Carey
January 2025 Graphite and lithium resource 
potential in Alaska
George
Case
February 2025 McKay's buntings
Rachel
Richardson
 
March 2025 Permafrost Eva Stephani
April 2025 Geese Vijay Patil

Previous Seminars

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