James A. Hobbs

The New Almaden Mercury Mining District, established 1845 in the hills south of San Jose, California, was the first mercury mine in the state (Snell 1964).

Keywords

outmigration

fish

survival

Tidal Marsh Restoration Benefits Leopard Sharks in South Bay Salt Pond Restoration Project Ponds. Final Report

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

Tidal Marsh Restoration Benefits Leopard Sharks in South Bay Salt Pond Restoration Project Ponds. Final Report admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

James A. Hobbs

Jonathan Cook

Patrick Crain

Date

2015-01-16

Summary

The South Bay Salt Pond Restoration Project (SBSPRP) is one of the largest tidal marsh restorations in the United States. Located within the southern arm of the San Francisco Estuary, the project is returning approximately 15,000 acres of former commercial salt production ponds to a rich mosaic of tidal wetlands and other habitats (EDAW et al. 2007 EIR/EIS Report). The restored ponds provide habitat for large numbers of migratory waterfowl and shorebirds, as well as several ESA listed species such as the Western snowy plover, California clapper rail, and the salt marsh harvest mouse (Takekawa et al. 2001; Warnock et al. 2002; Strong et al. 2004). To support diverse number of avian species and aquatic organisms the SBSPRP is using a mosaic design that incorporates local physical processes to support the structure and function of existing habitats, while restoring salt ponds to tidal wetlands. Pond restoration types include fully-tidal ponds, muted-tidal ponds and managed-ponds. Fully-tidal ponds were opened to tidal influence by excavating one, or in some cases multiple, breaches in the surrounding levee. These naturally fluctuating ponds typically de-water to outer channels (adjacent sloughs) on low tides and then completely fill, overtopping the marsh plane within the pond on high tides. Muted-tide ponds utilize water control structures to maintain pond levels at a minimum depth. The purpose of muting the tidal depth is to maintain habitat for wading birds and waterfowl while allowing tidal exchange with adjacent sloughs and the SF Bay. Water control structures are large enough to allow passage of mobile aquatic organisms, including fish, shrimp and crabs, to access the ponds, thereby creating opportunity for tidal refuge from the full exchange of the prevailing tides.

Keywords

fish

Steelhead Smolt Outmigration and Survival Study: Pond A8, A7 & A5 Entrainment and Escapement.

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

Steelhead Smolt Outmigration and Survival Study: Pond A8, A7 & A5 Entrainment and Escapement. admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

James A. Hobbs

Jonathan Cook

Felipe La Luz

Date

2014-11-1

Summary

The New Almaden Mercury Mining District, established 1845 in the hills south of San Jose, California, was the first mercury mine in the state (Snell 1964). It was located at the headwaters of the Guadalupe River which flows into the Alviso Marsh at Guadalupe Slough and Alviso Slough.

Keywords

fish

Monitoring the Response of Fish Communities to Salt Pond Restoration: Final Report

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

Monitoring the Response of Fish Communities to Salt Pond Restoration: Final Report admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

James A. Hobbs

Dr. Peter Moyle

Nicholas Buckmaster

Date

2012-11-07

Summary

The goal of this project is to document the species assemblages within the restored salt ponds and to design a monitoring program to assess the effect of pond restoration on fish assemblages inside newly breached ponds and adjacent sloughs.

Keywords

fish

South Bay Salt Pond Restoration—Fish Monitoring Summary Progress Report for January–June, 2012

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

South Bay Salt Pond Restoration—Fish Monitoring Summary Progress Report for January–June, 2012 admin Wed, 11/22/2017 - 16:21

Document Category

Scientific Reports

Author(s)

James A. Hobbs

Date

2012-07

Summary

Five otter trawl surveys were conducted in fulfillment of Task 1 (Alviso Complex Sampling) and Task 4 (Bair Island Sampling)

Keywords

fish