Exploration of Feasibility for a Macroinvertebrate Index of Biotic Integrity for Riparian Wetlands in the New Jersey Highlands PDF Download

Author: Niki H. Learn
Publisher:
ISBN:
Category : Invertebrates
Languages : en
Pages : 0

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Book Description

Author: Neil J. Haugerud
Publisher:
ISBN:
Category : Aquatic invertebrates
Languages : en
Pages : 175

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Book Description
In order to develop biological indicators capable of assessing the biological conditions of state rivers and streams, the North Dakota Department of Health is developing a calibrated multi-metric index of biotic integrity (IBI) based on aquatic macroinvertebrate data for each ecoregion. Macroinvertebrates are common inhabitants of rivers and streams and vital links in the movement of energy through the food web.

Author: Neil J. Haugerud
Publisher:
ISBN:
Category : Agassiz, Lake
Languages : en
Pages : 108

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Book Description
The purpose of this project is to develop a set of benthic macroinvertebrate multimetric IBIs that can be used to assess the biological condition of perennial rivers and streams in North Dakota ... Macroinvertebrates are excellent indicators of aquatic health. Additionally, due to the range of life spans and varying needs throughout their life span, macroinvertebrates are excellent indicators of chronic and acute pollution impacts.

Author: Steven James Holdeman
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 212

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Author: Marie Reyes
Publisher:
ISBN:
Category :
Languages : en
Pages : 23

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Author: Tanya Sulikowski
Publisher:
ISBN:
Category : Environmental monitoring
Languages : en
Pages : 178

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Author: P. Jacobson
Publisher:
ISBN:
Category : Biotic communities
Languages : en
Pages :

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Author: Stephanie A. Ogren
Publisher:
ISBN:
Category :
Languages : en
Pages : 106

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Book Description
Multiple indices of biotic integrity and biological condition gradient models have been developed and validated to assess ecological integrity in the Laurentian Great Lakes Region. With multiple groups such as Tribal, Federal, and State agencies as well as scientists and local watershed management or river-focused volunteer groups collecting data for bioassessment it is important that we determine the comparability of data and the effectiveness of indices applied to these data for assessment of natural systems. We evaluated the applicability of macroinvertebrate and fish community indices for assessing site integrity. Site quality (i.e., habitat condition) could be classified differently depending on which index was applied. This highlights the need to better understand the metrics driving index variation as well as reference conditions for effective communication and use of indices of biotic integrity in the Upper Midwest. We found the macroinvertebrate benthic community index for the Northern Lakes and Forests Ecoregion and a coldwater fish index of biotic integrity for the Upper Midwest were most appropriate for use in the Big Manistee River watershed based on replicate sampling, ability to track trends over time and overall performance. We evaluated three sites where improper road stream crossings (culverts) were improved by replacing them with modern full-span structures using the most appropriate fish and macroinvertebrate IBIs. We used a before-after-control-impact paired series analytical design and found mixed results, with evidence of improvement in biotic integrity based on macroinvertebrate indices at some of the sites while most sites indicated no response in index score. Culvert replacements are often developed based on the potential, or the perception, that they will restore ecological integrity. As restoration practitioners, researchers and managers, we need to be transparent in our goals and objectives and monitor for those results specifically. The results of this research serve as an important model for the broader field of ecosystem restoration and support the argument that while biotic communities can respond to actions undertaken with the goal of overall restoration, practitioners should be realistic in their expectations and claims of predicted benefit, and then effectively evaluate the true impacts of the restoration activities.

Author:
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 64

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Book Description

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309125391
Category : Nature
Languages : en
Pages : 611

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Book Description
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.