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Short-Term Effects of the 2008 High-Flow Experiment on Macroinvertebrates in Colorado River Below Glen Canyon Dam, Arizona: Open-File Report 2010-1031 by Emma J. Rosi-Marshall, United U. S. Department of the Interior, Et Al - Paperback
60.90 درهم

Short-Term Effects of the 2008 High-Flow Experiment on Macroinvertebrates in Colorado River Below Glen Canyon Dam, Arizona: Open-File Report 2010-1031 by Emma J. Rosi-Marshall, United U. S. Department of the Interior, Et Al - Paperback

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60.90 درهم 

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الأسعار تشمل ضريبة القيمة المضافة  التفاصيل
رقم ال ISBN
9781288707751
الفئات
سياسة
الكاتب
Emma J. Rosi-Marshall, United U. S. Department of the Interior, Et Al
الناشر
Bibliogov
الوصف:

Glen Canyon Dam has dramatically altered the physical environment (especially discharge regime, water temperatures, and sediment inputs) of the Colorado River. High-flow experiments (HFE) that mimic one aspect of the natural hydrograph (floods) were implemented in 1996, 2004, and 2008. The primary goal of these experiments was to increase the size and total area of sandbar habitats that ...

تشحن من الولايات المتحدة
اشحن الى دبي (تغيير المدينة)
التوصيل خلال السبت ١ سبتمبر - الأحد ٢ سبتمبر الي دبي

حالة السلعة:
جديدة
البائع:
InternationalBookStore (87% تقييم ايجابي)

معلومات المنتج

  •  

    المواصفات

    رقم ال ISBN
    9781288707751
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354419223
    المؤلفين
    الكاتب
    Emma J. Rosi-Marshall, United U. S. Department of the Interior, Et Al
    المؤلفين
    الناشر
    Bibliogov
    رقم ال ISBN
    9781288707751
    الفئات
    سياسة
    الرقم المميز للسلعة
    2724354419223
    المؤلفين
    الكاتب
    Emma J. Rosi-Marshall, United U. S. Department of the Interior, Et Al
    المؤلفين
    الناشر
    Bibliogov
    معلومات تقنية
    غلاف الكتاب
    غلاف عادي
    اللغات والبلدان
    لغة الكتاب
    الانجليزية
    إقرأ المزيد
  •  

    الوصف:

    Glen Canyon Dam has dramatically altered the physical environment (especially discharge regime, water temperatures, and sediment inputs) of the Colorado River. High-flow experiments (HFE) that mimic one aspect of the natural hydrograph (floods) were implemented in 1996, 2004, and 2008. The primary

    Glen Canyon Dam has dramatically altered the physical environment (especially discharge regime, water temperatures, and sediment inputs) of the Colorado River. High-flow experiments (HFE) that mimic one aspect of the natural hydrograph (floods) were implemented in 1996, 2004, and 2008. The primary goal of these experiments was to increase the size and total area of sandbar habitats that provide both camping sites for recreational users and create backwaters (areas of stagnant flow in the lee of return-current eddies) that may be important as rearing habitat for native fish. Experimental flows might also positively or negatively alter the rainbow trout (Oncorhynchus mykiss) sport fishery in the clear tailwater reach below Glen Canyon Dam, Ariz., and native fish populations in downstream reaches (for example, endangered humpback chub, Gila cypha) through changes in available food resources. We examined the short-term response of benthic macroinvertebrates to the March 2008 HFE at three sites! river mile 0 (RM 0, 15.7 miles downriver from the dam), RM 62, and RM 225] along the Colorado River downstream from Glen Canyon Dam by sampling immediately before and then 1, 7, 14, and 30 days after the HFE. We selected these sites because of their importance to management; RM 0 has a valuable trout fishery, and RM 62 is the location of the largest population of the endangered humpback chub in the Grand Canyon. In addition to the short-term collection of samples, as part of parallel investigations, we collected 3 years of monthly (quarterly for RM 62) benthic macroinvertebrate samples that included 15 months of post-HFE data for all three sites, but processing of the samples is only complete for one site (RM 0). At RM 0, the HFE caused an immediate 1.75 g AFDM/m2 (expressed as grams ash-free dry mass, or AFDM) reduction of macroinvertebrate biomass that was driven by significant reductions in the biomass of the two dominant taxa in this reach-Potamopyrgus antipodarum (New Zeala.

    خصائص المنتج:
    • الفئات: سياسة
    • غلاف الكتاب: غلاف عادي
    • لغة الكتاب: الانجليزية
    • الكاتب: Emma J. Rosi-Marshall, United U. S. Department of the Interior, Et Al
    • الناشر: Bibliogov
    • رقم ال ISBN: 9781288707751
    • عدد الصفحات: 40
    • لأبعاد (الارتفاع*العرض*العمق): 9.69 x 7.44 x 0.08 inches
 

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