Distribution and Habitat Associations of Radio‐Tagged Adult Lost River Suckers and Shortnose Suckers in Upper Klamath Lake, Oregon

Banish, Nolan P.; Adams, Barbara J.; Shively, R.S.; Mazur, Michael M.; Beauchamp, David A.; Wood, Tamara M.

doi:10.1577/t07-252.1

Cited by 15 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the bloom declines and cells senesce in late July to early August, oxygen may be depleted in the water column and lakebed. These suboxic conditions are thought to negatively affect the survival of the adult and possibly the juvenile life stages of two sucker species (Catostomidae) that traditionally were harvested by native peoples but have been listed as endangered since 1988: shortnose suckers (Chasmistes brevirostris) and Lost River suckers (Deltistes luxatus) ( [24][25][26][27]; see also http://pubs. usgs.gov/of/2010/1261/).…”

Section: Site Descriptionmentioning

confidence: 99%

Changes in benthic nutrient sources within a wetland after hydrologic reconnection

Kuwabara

Topping

Carter

et al. 2012

Enviro Toxic and Chemistry

Self Cite

View full text Add to dashboard Cite

Removing dams and levees to restore hydrologic connectivity and enhance ecosystem services such as nutrient removal has been an increasingly common management practice. In the present study, the authors assessed geochemical and biological changes following engineered levee breaches that reconnected eutrophic Upper Klamath Lake and Agency Lake, Oregon, USA, to an adjacent, historic wetland that had been under agricultural use for the last seven decades. Over the three-year study, the reconnected wetland served as a benthic source for both macronutrients (dissolved organic carbon [DOC], soluble reactive phosphorus [SRP], and ammonia) and micronutrients (dissolved iron and manganese). The magnitude of those benthic sources was similar to or greater than that of allochthonous sources. The highest DOC benthic flux to the water column occurred immediately after rewetting occurred. It then decreased during the present study to levels more similar to the adjacent lake. Dissolved ammonia fluxes, initially negative after the levee breaches, became consistently positive through the remainder of the study. Nitrate fluxes, also initially negative, became negligible two years after the levee breaches. In contrast to previous laboratory studies, SRP fluxes remained positive, as did fluxes of dissolved iron and manganese. Our results indicate that the timescales of chemical changes following hydrologic reconnection of wetlands are solute-specific and in some cases extend for multiple years beyond the reconnection event. During the present study, colonization of the reconnected wetlands by aquatic benthic invertebrates gradually generated assemblages similar to those in a nearby wetland refuge and provided further evidence of the multiyear transition of this area to permanent aquatic habitat. Such timescales should be considered when developing water-quality management strategies to achieve wetland-restoration goals.

show abstract

Section: Site Descriptionmentioning

confidence: 99%

Changes in benthic nutrient sources within a wetland after hydrologic reconnection

Kuwabara

Topping

Carter

et al. 2012

Enviro Toxic and Chemistry

Self Cite

View full text Add to dashboard Cite

show abstract

“…Finally, more research is needed to determine whether specific environmental conditions, such as poor water quality, loss of deep water refugia, limited access to spawning tributaries, and/or poor fish condition, are associated with sucker susceptibility to bird predation in the Upper Klamath Basin. Banish et al (2009) observed poor water quality (low dissolved oxygen, high pH, and outbreaks of the cyanobacterium, Aphanizomenon flos-aquae) and habitat conditions in parts of Upper Klamath Lake, which caused suckers to congregate in large numbers in areas where they might have been more susceptible to bird predation. Hewitt and Hayes (2013) noted that spawning runs into Willow Creek, the lone spawning tributary for Shortnose Suckers and Lost River Suckers in Clear Lake, were limited when flows were low in the creek as a result of drought conditions.…”

mentioning

confidence: 99%

Colonial Waterbird Predation on Lost River and Shortnose Suckers in the Upper Klamath Basin

Evans

Hewitt

Payton

et al. 2016

N American J Fish Manag

View full text Add to dashboard Cite

We evaluated predation on Lost River Suckers Deltistes luxatus and Shortnose Suckers Chasmistes brevirostris by American white pelicans Pelecanus erythrorhynchos and double‐crested cormorants Phalacrocorax auritus nesting at mixed‐species colonies in the Upper Klamath Basin of Oregon and California during 2009–2014. Predation was evaluated by recovering (detecting) PIT tags from tagged fish on bird colonies and calculating minimum predation rates, as the percentage of available suckers consumed, adjusted for PIT tag detection probabilities but not deposition probabilities (i.e., probability an egested tag was deposited on‐ or off‐colony). Results indicate that impacts of avian predation varied by sucker species, age‐class (adult, juvenile), bird colony location, and year, demonstrating dynamic predator–prey interactions. Tagged suckers ranging in size from 72 to 730 mm were susceptible to cormorant or pelican predation; all but the largest Lost River Suckers were susceptible to bird predation. Minimum predation rate estimates ranged annually from <0.1% to 4.6% of the available PIT‐tagged Lost River Suckers and from <0.1% to 4.2% of the available Shortnose Suckers, and predation rates were consistently higher on suckers in Clear Lake Reservoir, California, than on suckers in Upper Klamath Lake, Oregon. There was evidence that bird predation on juvenile suckers (species unknown) in Upper Klamath Lake was higher than on adult suckers in Upper Klamath Lake, where minimum predation rates ranged annually from 5.7% to 8.4% of available juveniles. Results suggest that avian predation is a factor limiting the recovery of populations of Lost River and Shortnose suckers, particularly juvenile suckers in Upper Klamath Lake and adult suckers in Clear Lake Reservoir. Additional research is needed to measure predator‐specific PIT tag deposition probabilities (which, based on other published studies, could increase predation rates presented herein by a factor of roughly 2.0) and to better understand biotic and abiotic factors that regulate sucker susceptibility to bird predation. Received January 19, 2016; accepted June 25, 2016 Published online October 7, 2016

show abstract

“…Adult Lost River sucker appear to inhabit slightly deeper habitats than adult shortnose sucker. Banish et al (2009) found that based on 50% kernel estimates, radio-tagged Lost River sucker were often associated with relatively deeper areas (e.g., immediately off of Ball Point and Eagle Ridge Point), whereas shortnose sucker tended to be more often associated with areas relatively near the shoreline.…”

Section: Ecological Statusmentioning

confidence: 99%

Status of Lost River Sucker and Shortnose Sucker

Rasmussen

2011

Western North American Naturalist

View full text Add to dashboard Cite

Distribution and Habitat Associations of Radio‐Tagged Adult Lost River Suckers and Shortnose Suckers in Upper Klamath Lake, Oregon

Cited by 15 publications

References 21 publications

Changes in benthic nutrient sources within a wetland after hydrologic reconnection

Changes in benthic nutrient sources within a wetland after hydrologic reconnection

Colonial Waterbird Predation on Lost River and Shortnose Suckers in the Upper Klamath Basin

Status of Lost River Sucker and Shortnose Sucker

Contact Info

Product

Resources

About