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Seattle, WA 98133

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Latest News ItemNew WDOE Wetland Rating Habitat Scores

Latest News ItemMazama Pocket Gophers – What Do They Mean For Me?

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The official Instagram of Raedeke Associates, a Seattle-based environmental consulting firm.

Many characteristics determine the overall health

Many characteristics determine the overall health of a stream.
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Here, biologists Andrew and Courtney can be seen collecting water samples to be analyzed by a lab, as well as turbidity measurements. The samples analyzed by the testing lab will determine characteristics such as suspended solids, dissolved oxygen, and the presence of any contaminants like fecal coliform bacteria. The turbidity measurements seen in the second and third photo determine the clarity or ‘cloudiness’ of the water. These measurements are taken in tandem with stream height measurements to see if weather events impact the water quality.

#sampling #raedeke #environmentalscience #hydrology #stormwater #streams #water #biology

Biologist Courtney Straight inspects mysterious tr

Biologist Courtney Straight inspects mysterious trees planted on a urban property. She successfully identified this one as a pear tree. Vegetation in urban areas can sometimes be a mix of ornamentals, natives, and invasives… which presents a fun challenge to our scientists.

Landscape architect Shraddha Sawant conducts a 4th

Landscape architect Shraddha Sawant conducts a 4th year inspection of an urban wetland buffer restoration site. Note the abrupt lawn edge adjoining the wetland buffer. Dense planting of trees and shrubs can help protect wetland functions from the high disturbance of dense urban development.

Biologist Courtney Straight inspects hydric soils

Biologist Courtney Straight inspects hydric soils in an emergent wetland dominated by slough sedge (Carex obnupta).

Wetland investigation conducted by Raedeke biologi

Wetland investigation conducted by Raedeke biologists Will Hohman, Courtney Straight, and Will Russack near Brookings, Oregon.

As climate changes over time, so too do the conditions which support the existence of wetlands. A habitat must meet very specific soil, vegetation, and hydrologic criteria in order to legally qualify as a wetland.

The wetland shown here was first identified by Raedeke staff over 20 years ago. Our biologists have returned to verify the wetland still exists today and continues to provide invaluable habitat conditions to the local ecosystem.

#wetlands #oregon #environment #fieldwork

This photo illustrates the importance of controlli

This photo illustrates the importance of controlling for invasive plants. In the area pictured, an understory of reed canarygrass (Phalaris arundinacea) has established under a relatively young community of willows. The aggressive growing characteristics of reed canarygrass allow it to leaf out sooner than the other plant species in this area, giving it a competitive advantage against other native plant species. It can be very difficult to re-establish a native plant community once these invasive plants become established. Using preventative measures at the first sign of these species can save a lot of time and money in the long run.
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#invasiveplants #invasivespecies #wetlandrestoration #wetlandmitigation #wetlands

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