Health and Condition of Endangered Juvenile Lost River and Shortnose Suckers Relative to Water Quality, and Fish Assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California

Health and Condition of Endangered Juvenile Lost River and Shortnose Suckers Relative to Water Quality, and Fish Assemblages in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California PDF Author: Summer M. Burdick
Publisher:
ISBN:
Category : Castomidae
Languages : en
Pages : 0

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Health and Condition of Endangered Young-of-the-year Lost River and Shortnose Suckers Relative to Water Quality in Upper Klamath Lake, Oregon

Health and Condition of Endangered Young-of-the-year Lost River and Shortnose Suckers Relative to Water Quality in Upper Klamath Lake, Oregon PDF Author: Summer M. Burdick
Publisher:
ISBN:
Category : Castomidae
Languages : en
Pages : 41

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Lost River (Deltistes Luxatus) and Shortnose (Chasmistes Brevirostris) Sucker Recovery Plan

Lost River (Deltistes Luxatus) and Shortnose (Chasmistes Brevirostris) Sucker Recovery Plan PDF Author: Kevin Stubbs
Publisher:
ISBN:
Category : Catostomidae
Languages : en
Pages : 130

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Juvenile Lost River and Shortnose Sucker Year-class Formation, Survival, and Growth in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California

Juvenile Lost River and Shortnose Sucker Year-class Formation, Survival, and Growth in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California PDF Author: Ryan J. Bart
Publisher:
ISBN:
Category : Lost River sucker
Languages : en
Pages : 33

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Biological/conference Opinion Regarding the Effects of Operation of the Bureau of Reclamation's Klamath Project on the Endangered Lost River Sucker (Deltistes Luxatus), Endangered Shortnose Sucker (Chasmistes Brevirostris), Threatened Bald Eagle (Haliaeetus Leucocephalus) and Proposed Critical Habitat for the Lost River/shortnose Suckers

Biological/conference Opinion Regarding the Effects of Operation of the Bureau of Reclamation's Klamath Project on the Endangered Lost River Sucker (Deltistes Luxatus), Endangered Shortnose Sucker (Chasmistes Brevirostris), Threatened Bald Eagle (Haliaeetus Leucocephalus) and Proposed Critical Habitat for the Lost River/shortnose Suckers PDF Author:
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 302

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Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon

Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon PDF Author: U.S. Department of the Interior
Publisher: CreateSpace
ISBN: 9781497346871
Category : Nature
Languages : en
Pages : 42

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Book Description
Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper Klamath Lake throughout the summer months, but catches decline dramatically between late August and early September each year and age-1 and older sub-adult suckers are rare. These rapid declines in catch rates and a lack of substantial recruitment into adult sucker populations in recent years suggests sucker populations experience high mortality between their first summer and first spawn. A lack of access to, or abundance of, optimal rearing habitat may exacerbate juvenile sucker mortality or restrict juvenile growth or development.

Spring and Summer Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon

Spring and Summer Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon PDF Author: U S Department of the Interior
Publisher:
ISBN: 9781496184146
Category :
Languages : en
Pages : 62

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Book Description
Lost River sucker Deltistes luxatus and shortnose sucker Chasmistes brevirostris were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper Klamath Lake throughout the summer months, but catches decline dramatically between late August and early September each year, and age-1 and older subadult suckers are rare. These rapid declines in catch rates and a lack of substantial recruitment into adult sucker populations in recent years suggests sucker populations experience high mortality between their first summer and first spawn. A lack of optimal rearing habitat may exacerbate juvenile sucker mortality or restrict juvenile growth or development.

Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon

Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon PDF Author: U.S. Department of the Interior
Publisher: CreateSpace
ISBN: 9781497347113
Category : Nature
Languages : en
Pages : 84

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Book Description
Federally endangered Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were once abundant throughout their range but populations have declined. They were extirpated from several lakes in the 1920s and may no longer reproduce in others. Poor recruitment to the adult spawning populations is one of several reasons cited for the decline and lack of recovery of these species and may be the consequence of high mortality during juvenile life stages. High larval and juvenile sucker mortality may be exacerbated by an insufficient quantity of suitable or high quality rearing habitat. In addition, larval suckers may be swept downstream from suitable rearing areas in Upper Klamath Lake into Keno Reservoir, which is seasonally anoxic.

Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon

Distribution and Condition of Larval and Juvenile Lost River and Shortnose Suckers in the Williamson River Delta Restoration Project and Upper Klamath Lake, Oregon PDF Author: U.S. Department of the Interior
Publisher: CreateSpace
ISBN: 9781497353824
Category : Nature
Languages : en
Pages : 46

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Book Description
Federally endangered Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were once abundant throughout their range but populations have declined. They were extirpated from several lakes in the 1920s and may no longer reproduce in other lakes. Poor recruitment to the adult spawning populations is one of several reasons cited for the decline and lack of recovery of these species and may be the consequence of high mortality during juvenile life stages. High larval and juvenile sucker mortality may be exacerbated by an insufficient quantity of suitable or high-quality rearing habitat. In addition, larval suckers may be swept downstream from suitable rearing areas in Upper Klamath Lake into Keno Reservoir, where they are assumed lost to Upper Klamath Lake populations.

Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon

Temporal and Spatial Distribution of Endangered Juvenile Lost River and Shortnose Suckers in Relation to Environmental Variables in Upper Klamath Lake, Oregon PDF Author: U.S. Department of the Interior
Publisher: CreateSpace
ISBN: 9781497347304
Category : Reference
Languages : en
Pages : 48

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Book Description
Lost River sucker (Deltistes luxatus) and shortnose sucker (Chasmistes brevirostris) were listed as endangered in 1988 for a variety of reasons including apparent recruitment failure. Upper Klamath Lake, Oregon, and its tributaries are considered the most critical remaining habitat for these two species. Age-0 suckers are often abundant in Upper Klamath Lake throughout the summer months, but catches decline dramatically between late August and early September each year. Similar declines of age-1 suckers between spring and late summer also occur annually. These rapid declines in catch rates and a lack of substantial recruitment into adult sucker populations in recent years suggests sucker populations experience high mortality between their first summer and first spawn.