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Toxicodendron diversilobum and Rhus trilobata| TRRP
A tiny parasite in the Klamath & Trinity Rivers What is C. shasta? Ceratonova shasta (C. shasta) is a microscopic parasite that is native to rivers of the Pacific Northwest, including the Klamath and Trinity Rivers. Infection is most severe for juvenile salmon but can impact returning adults as well. The impact of an infection […]| TRRP: Featured Article – C. shasta
Sun Seekers, Fire Carriers, and Medicine Keepers| TRRP
As the weather starts to warm, California’s hillsides turn golden as grasses dry and take on a reflective sheen. Not only does California’s nickname “the Golden State” refer to it’s historic connection to the gold rush, it also refers to the rolling golden hills of native flowers, like the California golden poppy and less distinct […]| TRRP: Plant Spotlight – Grasses of the Trinity River Watershed
Wait, bats? Of the river? Yes! A river is more than its bed and banks, it is also intricately tied to the valleys, canyons, and forests through which it flows. Many North American bats are tightly associated with proximity to both forest cover and water (e.g. Dixon 2012), and the bats of the Trinity River watershed follow suit. In fact, some of our bats do almost all of their foraging over and near water, which in a dry, mountainous landscape like ours, means over the Trinity River and its tr...| TRRP
The northwestern pond turtle (Actinemys marmorata) has lived in the waters of the Trinity River for thousands of years. This species has undergone several taxonomic revisions since first being first described in 1841 (1, 2, 3). It was originally considered a single species with the southwestern pond turtle (Actinemys pallida) and called ‘Emys marmorata’. Then […]| TRRP: Animal Spotlight – Northwestern Pond Turtle
Trinity River Hatchery Modernization Project Federal funding has provided the opportunity to institute much-needed modernization for the Trinity River Hatchery. Trinity River Hatchery (TRH) is a Reclamation-owned, Central Valley Project mitigation hatchery which was established to produce juvenile salmonids to mitigate for the loss of fish habitat upstream of Lewiston and Trinity Dams. Both dams […]| TRRP: Featured Article – June 2023
Fish Biologists Turned Farmers: Growing Food for Juvenile Salmonids in a Regulated River System Modern river science related to salmon restoration is everchanging due to the complex interplay of factors affecting their life cycle. There are man-made issues including habitat degradation, barriers to migration, harvest; as well as environmental, such as climate change, and ocean conditions. […]| TRRP: Featured Article – APR25
Summary of the Trinity Management Council’s March Quarterly Meeting The Trinity Management Council met virtually on Wed., March 19, 9am-3pm for its spring-quarter meeting. There were seven major topics on the agenda along with two decision items. Program Updates (TRRP Staff) Trinity River Restoration Program Executive Director, Mike Dixon highlighted a busy quarter for channel […]| TRRP: Featured Article – APR25
Eric Peterson, Science Coordinator out monitoring algae on the Trinity River in 2024. [Jeanne McSloy, Trinity River Restoration Program]| TRRP
Aerial Image of the Upper Conner Creek Restoration Site during phase 1 restoration in fall of 2024. [Elliot Sarnacki, Trinity River Restoration Program]The Trinity River Restoration Program is working on two Trinity River channel rehabilitation projects in 2025; Phase II of the Upper Conner Creek Rehabilitation Project located in Junction City, CA and Phase I of the Sawmill Gravel Processing Site Rehabilitation Project located in Lewiston, CA.| TRRP
The start of summer in Trinity County has been a hot one, with 100° plus degrees for 10 days straight in early July combined with another series of 100° degree days forecasted for the latter half of the month. As warm-bodied land dwellers, we cope with heat by seeking refuge: interior shelter, air conditioning, shade, and of course, water. Refreshing water comes in many forms – pools, sprinklers and creeks, lakes, and rivers – whatever is available to us! Cold-blooded salmon are not so ...| TRRP
While there are dozens of milkweed species and subspecies in North America, within the Trinity River Watershed there are four documented species, including showy milkweed (Asclepias speciosa) narrowleaf milkweed (Asclepias fascicularis), heart leaf milkweed (Asclepias cordifolia) (DeCamp, 2021, p. 294, 362) and the rare lesser seen serpentine milkweed (Asclepias solanoana) (Kauffman, 2022, p. 155). Each type has unique leaf sets and structure topped with wonderful showy flowers and dramatical...| TRRP
