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Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province

Habitat Suitability Index Model for Brook Trout in Streams of the Southern Blue Ridge Province PDF
Author: Christopher J. Schmitt
Publisher:
ISBN:
Size: 30.76 MB
Format: PDF
Category : Brook trout
Languages : en
Pages : 43
View: 5533

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Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province

by Christopher J. Schmitt, Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province Books available in PDF, EPUB, Mobi Format. Download Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province books, Data from several sources were collated and analyzed by correlation, regression, and principal components analysis to define surrogate variables for use in the brook trout (Salvelinus fontinalis) habitat suitability index (HSI) model, and to evaluate the applicability of the model for assessing habitat in high-elevation streams of the southern Blue Ridge Province (SBRP). In all data sets examined, pH and alkalinity were highly correlated. Our major objective was to explore relations among these variables and such readily obtainable information as stream size, order gradient, and elevation to determine whether some of the more easily measured features can be used as surrogate variables for application of the brook trout HSI model in the SBRP. Our second objective was to evaluate the overall applicability of the model for brook trout in SBRP streams.




Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province

Habitat Suitability Index Model for Brook Trout in Streams of the Southern Blue Ridge Province PDF
Author: Christopher J. Schmitt
Publisher:
ISBN:
Size: 54.86 MB
Format: PDF, Kindle
Category : Brook trout
Languages : en
Pages : 43
View: 2022

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Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province

by Christopher J. Schmitt, Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province Books available in PDF, EPUB, Mobi Format. Download Habitat Suitability Index Model For Brook Trout In Streams Of The Southern Blue Ridge Province books, Data from several sources were collated and analyzed by correlation, regression, and principal components analysis to define surrogate variables for use in the brook trout (Salvelinus fontinalis) habitat suitability index (HSI) model, and to evaluate the applicability of the model for assessing habitat in high-elevation streams of the southern Blue Ridge Province (SBRP). In all data sets examined, pH and alkalinity were highly correlated. Our major objective was to explore relations among these variables and such readily obtainable information as stream size, order gradient, and elevation to determine whether some of the more easily measured features can be used as surrogate variables for application of the brook trout HSI model in the SBRP. Our second objective was to evaluate the overall applicability of the model for brook trout in SBRP streams.




Instream Flows To Assist The Recovery Of Endangered Fishes Of The Upper Colorado River Basin

Instream Flows to Assist the Recovery of Endangered Fishes of the Upper Colorado River Basin PDF
Author: Jack Arthur Stanford
Publisher:
ISBN:
Size: 33.98 MB
Format: PDF, Docs
Category : Fishes
Languages : en
Pages : 47
View: 5345

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Instream Flows To Assist The Recovery Of Endangered Fishes Of The Upper Colorado River Basin

by Jack Arthur Stanford, Instream Flows To Assist The Recovery Of Endangered Fishes Of The Upper Colorado River Basin Books available in PDF, EPUB, Mobi Format. Download Instream Flows To Assist The Recovery Of Endangered Fishes Of The Upper Colorado River Basin books, The riverine landscape of the Upper Colorado River Basin has been extensively modified by dams, diversions, revetments, and water abstractions. These changes, probably coupled with the introduction of many nonnative fishes, have compromised the existence of four of the native fishes (Colorado River squawfish Ptychocheilus lucius, humpback chub Gila cypha, bonytail chub Gila elegans, and razorback sucker Xyrauchen texanus) of the river system. Efforts to recover these endangered fishes have emphasized reregulation of flows to provide better habitat conditions than existed during the last half century; when ranges and abundances of the fishes declined significantly. Contention emerged, however; with regard to the efficacy of methods used by the U.S. Fish and Wildlife Service to justify flow recommendations to protect the endangered fishes. The purpose of this study was to review the science pertaining to the issue of flow provision, to identify critical uncertainties, and to provide recommendations for determining the instream flow needs of the endangered fishes.




Proceedings Of The Symposium On Restoration Planning For The Rivers Of The Mississippi River Ecosystem

Proceedings of the Symposium on Restoration Planning for the Rivers of the Mississippi River Ecosystem PDF
Author: Larry Hesse
Publisher:
ISBN:
Size: 58.56 MB
Format: PDF, Docs
Category : Fishery management
Languages : en
Pages : 502
View: 4473

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Proceedings Of The Symposium On Restoration Planning For The Rivers Of The Mississippi River Ecosystem

by Larry Hesse, Proceedings Of The Symposium On Restoration Planning For The Rivers Of The Mississippi River Ecosystem Books available in PDF, EPUB, Mobi Format. Download Proceedings Of The Symposium On Restoration Planning For The Rivers Of The Mississippi River Ecosystem books,