AMS Bottom Dredges
Features
- Constructed from stainless steel and powder-coated carbon steel
- Top of the sampling chamber is screened to allow water flow during deployment
- Two-way spring-loaded mechanism activates on contact with the bottom
- Expedited repair and warranty service
- Lifetime technical support
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Overview
Constructed from stainless steel and powder-coated carbon steel for corrosion resistance. AMS bottom dredges can be used to sample most sediments, with the exception of hard-packed clay.
Features
The top of the sampling chamber is screened to allow water flow during deployment and reduce the frontal shock wave that may displace sediment as the dredge contacts the sample surface. A two-way spring-loaded mechanism activates on contact with the bottom, no messenger is needed.Careful release will distribute the sample approximately as it appeared on the bottom, making sediment profile description possible.
In The News
Amazon sediment studied through Andes trip down tributary
A team of researchers led by scientists from the University of South Carolina Dornsife traveled to the Peruvian jungle to understand how sediment and plant matter travel down the Andes Mountains and into the Amazon River system, according a first-person account from Sarah Feakins, assistant professor of earth sciences at USC Dornsife. 
 The team focused on a tributary to the Amazon River, the Kosnipata River. They started at the headwaters, traveling up treacherous gravel mountain roads. They ended in the Amazonian floodplain, where Feakins said the river was orange from colloids in the soil. 
 The team spent most of their time collecting and filtering water to obtain sediment samples. Feakins described the work as collecting by day and filtering by night.
Read MorePuget Sound sediment health declines despite water improvements
A new report by the Washington Department of Ecology has shown that despite overall water quality improvements in Washington’s Puget Sound, sediment health in the central sound has been compromised over the last decade, The Bellingham Herald has reported. 
 The study was based off of sediment samples pulled from the bottom of the sound in 2008 and 2009. The samples showed that sediment-dwelling life had declined in 28 percent of the central sound. Samples from the same region a decade earlier showed only a decline of 7 percent of sediment-dwelling life. 
 The cause of the decline is unknown, but researchers speculate that pollution from pharmaceutical and personal care products might have an impact on the region.
Read MoreDutch researchers to explore seldom-seen deep water reefs
A deep water reef off the coast of a small island in the Dutch Caribbean will be explored at depths yet to be seen by scientists, according to a press release from the Netherlands’ Wageningen University. 
 The researchers will be mapping biodiversity and collecting samples from reefs off the coast of Bonaire. They plan to travel as deep as 300 meters to observe the biodiverse and mostly unexplored reefs. 
 A submersible from Bonaire’s Curacao Public Aquarium will take researchers down to do their observations. The sub's sediment core sampler will help the team analyze sediment in the reefs. 
 Biological samples will be analyzed and their DNA will be coded in a molecular lab in the Netherelands’ Naturalis Biodiversity Center.
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