Collin A. Eagles-Smith

Prey fish returned to Forster's tern colonies suggest spatial and temporal differences in fish composition and availability

Dave Halsing — Wed, 22 Jan 2020 20:35:26 +0000

Prey fish returned to Forster's tern colonies suggest spatial and temporal differences in fish composition and availability Dave Halsing Wed, 01/22/2020 - 12:35

Document Category

Scientific Reports

Author(s)

Sarah H. Peterson

Joshua T. Ackerman

Collin A. Eagles-Smith

Mark P. Herzog

C. Alex Hartman

Date

2018-03-15

Keywords

Forster’s tern

waterbirds

Pond Complex

Mercury Bioaccumulation in Estuarine Fishes: Novel Insights from Sulfur Stable Isotopes

admin — Thu, 23 Nov 2017 00:21:53 +0000

Mercury Bioaccumulation in Estuarine Fishes: Novel Insights from Sulfur Stable Isotopes admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

James J. Willacker

Collin A. Eagles-Smith

Joshua T. Ackerman

Date

2017

Keywords

mercury

fish

estuaries

Mercury contamination and stable isotopes reveal variability in foraging ecology of generalist California gulls

admin — Thu, 23 Nov 2017 00:21:53 +0000

Mercury contamination and stable isotopes reveal variability in foraging ecology of generalist California gulls admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

Sarah H. Peterson

Joshua T. Ackerman

Collin A. Eagles-Smith

Date

2017

Keywords

Does mercury contamination reduce body condition of endangered, California clapper rails?

admin — Thu, 23 Nov 2017 00:21:53 +0000

Does mercury contamination reduce body condition of endangered, California clapper rails? admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

Collin A. Eagles-Smith

Robin A. Keister

Mark P. Herzog

Date

2012

Keywords

The South Bay Mercury Project: Using Biosentinels to Monitor Effects of Wetland Restoration for the South Bay Salt Pond Restoration Project

admin — Thu, 23 Nov 2017 00:21:53 +0000

The South Bay Mercury Project: Using Biosentinels to Monitor Effects of Wetland Restoration for the South Bay Salt Pond Restoration Project admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

Joshua T. Ackerman

Mark Marvin-DiPasquale

Darrel Slotton

Collin A. Eagles-Smith

Date

2013-06-04

Summary

The South Bay Salt Pond Restoration Project plans to convert 50-90% of the former salt evaporation ponds of South San Francisco Bay into tidal marsh habitat. This large-scale habitat restoration may change the distribution, bioavailability, and bioaccumulation of methylmercury. The South Bay is known to already have high methylmercury levels in biota, with methylmercury concentrations in several waterbird species above known toxicity thresholds where avian reproduction is impaired.

Our goal was to monitor changes in mercury chemistry in sediment and water, and in methylmercury bioaccumulation that occurred before and after restoration activities associated with the opening of Pond A8 to Alviso Slough, which turned the Pond A8/A7/A5 Complex into a relatively deep and large pond with muted tidal action. The restoration of the Pond A8/A7/A5 Complex began in fall 2010 and the Pond A8 Notch was opened to muted tidal action on June 1, 2011. In fall 2010, internal levees between Ponds A8, A7, and A5 were breached and water depths were substantially increased by flooding the Pond A8/A7/A5 Complex in February 2011.

This report synthesizes biosentinel data from three related mercury projects: (1) the Pond A8 Mercury Study funded by the Resource Legacy Fund and the South Bay Salt Pond Restoration Project, (2) the Shoals Mercury Study funded by the USGS Research Augmentation for the South Bay Salt Pond Restoration Project, and (3) the Alviso Slough Mercury Study funded by the Resource Legacy Fund.

Keywords

Response of Waterbird Breeding Effort, Nest Success, and Mercury Concentrations in Eggs and Fish to Wetland Management

admin — Thu, 23 Nov 2017 00:21:53 +0000

Response of Waterbird Breeding Effort, Nest Success, and Mercury Concentrations in Eggs and Fish to Wetland Management admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

Joshua T. Ackerman

Collin A. Eagles-Smith

Date

2010-12

Summary

In cooperation with the Don Edwards San Francisco Bay National Wildlife Refuge, we experimentally manipulated water levels in pond A12 to examine the response of waterbird breeding effort and nest success, and assess the unintended consequence of this management action on the bioaccumulation of methylmercury into bird eggs and fish. We compared results from pond A12 to adjacent reference ponds and marshes.

Keywords

birds

mercury

fish

The Effects of Wetland Restoration on Mercury Bioaccumulation in the South Bay Salt Pond Restoration Project: Using the Biosentinel Toolbox to Monitor Changes Across Multiple Habitats and Spatial Scales

admin — Thu, 23 Nov 2017 00:21:53 +0000

The Effects of Wetland Restoration on Mercury Bioaccumulation in the South Bay Salt Pond Restoration Project: Using the Biosentinel Toolbox to Monitor Changes Across Multiple Habitats and Spatial Scales admin Wed, 11/22/2017 - 16:21

Document Category

Progress Reports

Author(s)

Joshua T. Ackerman

Mark Marvin-DiPasquale

Darrel Slotton

Mark P. Herzog

Collin A. Eagles-Smith

Date

2011-01

Summary

The project was initiated in April 2010, and to date has included four sampling events of surface water (April, May, June/July, and August 2010) and five sampling events of biota (April, May, June/July, August, and September 2010) and three sampling events for surface sediment (May, June/July, and August 2010). This annual report briefly summarizes our progress to date.

Keywords

California Gull Movements in Relation to Nesting Waterbirds and Landfills: Implications for the South Bay Salt Pond Restoration Project

admin — Thu, 23 Nov 2017 00:21:53 +0000

California Gull Movements in Relation to Nesting Waterbirds and Landfills: Implications for the South Bay Salt Pond Restoration Project admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

Joshua T. Ackerman

Collin A. Eagles-Smith

Date

2009

Keywords

birds

California gull

Collin A. Eagles-Smith

Prey fish returned to Forster's tern colonies suggest spatial and temporal differences in fish composition and availability

Alviso

Eden Landing

Ravenswood

Mercury Bioaccumulation in Estuarine Fishes: Novel Insights from Sulfur Stable Isotopes

Mercury contamination and stable isotopes reveal variability in foraging ecology of generalist California gulls

Does mercury contamination reduce body condition of endangered, California clapper rails?

The South Bay Mercury Project: Using Biosentinels to Monitor Effects of Wetland Restoration for the South Bay Salt Pond Restoration Project

Response of Waterbird Breeding Effort, Nest Success, and Mercury Concentrations in Eggs and Fish to Wetland Management

The Effects of Wetland Restoration on Mercury Bioaccumulation in the South Bay Salt Pond Restoration Project: Using the Biosentinel Toolbox to Monitor Changes Across Multiple Habitats and Spatial Scales

California Gull Movements in Relation to Nesting Waterbirds and Landfills: Implications for the South Bay Salt Pond Restoration Project