Watermark Surber-Type Stream Bottom Sampler
- Can be used in silt or large cobble
- Substrates are agitated to dislodge insects while water flow transports animals into plankton net
- Heavy-duty 500 micron mesh net
|77926||Surber-type stream bottom sampler, 500 micron mesh net|
|Usually ships in 3-5 days|
A durable Nitex mesh net is supported by perpendicular frame members and has built-in, clear polycarbonate cod-end assembly with latex tubing and pinch clamp.
- 12" x 12" folding brass frame
- (1) 12" x 12" folding brass frame
- (1) Nitex mesh net
- (1) Nylon carrying bag
In The News
Zooplankton drifts through the ocean, often ignored by the public in favor of more charismatic marine organisms farther up the food chain.
A new crowdsourced project aims to change that, giving anyone a closer look at small and intricate zooplankton. PlanktonPortal.org features 900,000 high resolution images of zooplankton and tasks the public to identify them as part of data processing for a collaborative study, based out of the University of Miami Rosenstiel School of Marine and Atmospheric Science.
Researchers hope the project will tell them more about zooplankton behavior, grouping and interaction.Read More
Researchers in England devised a new method for monitoring biodiversity with an insect soup and low cost DNA sequencing, according to a University of East Anglia press release.
Douglas Yu, a biology professor and the lead researcher for the study, said analyzing a few hundred ground-up bugs gives researchers equivalent data to traditional intensive methods for a fraction of the cost.
He said, compared to high quality data sets analyzing 55,000 arthropods and birds, sequencing bug juice was just as effective.
The researchers use a process called metabarcoding to identify bugs and biodiversity of an environment.
The measurement could eventually be established as a low cost, low impact way to understand the biodiversity of a system through some of its smallest creatures.Read More
River management is inherently complex, demanding mastery of constantly dynamic conditions even when the climate is stable. As the climate changes, however, river management will become even more difficult and unpredictable—and old models and techniques are likely to fail more often.
Now, researchers from around the world are calling for attention and change to how we manage and model the rivers of the world. Dr. Jonathan Tonkin , a Rutherford Discovery Fellow at New Zealand's University of Canterbury , spoke to EM about why he is arguing that current tools for river management are no longer enough as even historical baseline river ecosystem conditions themselves are changing.