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A Characterization Of Hyporheic Temperatures With Applications For Salmon Habitat Restoration In A Thermally Impaired River, Sydney Jantsch
A Characterization Of Hyporheic Temperatures With Applications For Salmon Habitat Restoration In A Thermally Impaired River, Sydney Jantsch
WWU Graduate School Collection
This thesis project is part of an ongoing study assessing the effectiveness of a potentially innovative habitat restoration strategy for Pacific salmon in thermally impaired rivers. This strategy uses engineered log jams (ELJs) to create pockets of cool-water refuge by forming deep scour pools and promoting localized upwellings of shallow subsurface (i.e., hyporheic) water. This project seeks to characterize the relationship between hyporheic temperature and overlying surface stream temperature to elucidate the extent to which hyporheic upwellings can deliver cool water to ELJ-formed pools during the summer low-flow season. Among six sites within a 2.7 km-long study reach on the …
Using Frog Embryo Teratogenesis Assay-Xenopus Laevis (Fetax) To Study Metals And Temperature As Multiple Stressors In Cascades Frog (Rana Cascadae), Adam Turner (Cockrill) Crispin
Using Frog Embryo Teratogenesis Assay-Xenopus Laevis (Fetax) To Study Metals And Temperature As Multiple Stressors In Cascades Frog (Rana Cascadae), Adam Turner (Cockrill) Crispin
WWU Graduate School Collection
Amphibian populations have been declining globally since at least the 1970s. In the western United States, disappearances have resulted in significant range contractions due to habitat loss, climate change, predation by non-native species, pesticide use, and disease, most recently by the fungal pathogen, Batrachochytrium dendrobatidis. Several recent studies have addressed amphibian population declines due to climate change, yet few studies have examined the interacting effects of climate change and metal contaminants as they relate to amphibians. Risks may be especially pronounced in amphibians that reside in high-alpine aquatic ecosystems, such as the Cascades frog (Rana cascadae), which may be affected …