Assessing condition of macroinvertebrate communities and bed sediment toxicity in the Rochester Embayment Area of Concern, New York, USA

Duffy, Brian T.; George, Scott D.; Baldigo, Barry P.; Smith, Alexander J.

doi:10.1016/j.jglr.2017.02.002

Cited by 5 publications

(1 citation statement)

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“…Works considering all of the three assessment criteria simultaneously, namely the hydro-morphological, physical-chemical, and biological criterion, are still relatively scarce. Moreover, these are usually proposals of assessments [6,[12][13][14][15][16][17][18][19][20][21]. Considerably more seldom, they are works aimed at the determination of the sensitivity of methods and the degree of their compatibility and complementarity in the final assessment of a river's ecological state [9,10,20,22], although they can provide information supporting river management decisions [9,23,24].…”

Section: Introductionmentioning

confidence: 99%

Quality of Rivers: Comparison of Hydro-Morphological, Physical-Chemical and Biological Methods

Gorzel

Kornijów

Buczyńska

2018

Ecological Chemistry and Engineering S

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The study was performed in five fourth-order tributaries of the Bystrzyca Lubelska River (Eastern Poland, Lublin Upland), differing in the degree of river-bed transformation and level of pollution. Hydro-morphological methods (descriptive method by Ilnicki and Lewandowski - IL, and index method by Oglecki and Pawlat - OP) and biological indices based on the composition of zoobenthos (Diversity - D, and index based on proportions between the density of Oligochaeta and Chironomidae - O/Ch) permitted distinguishing of four classes, from II to V. The distinguishing of only two quality classes (III and IV) was possible by means of physical-chemical methods and by benthic index BMWP_PL. Those two methods seem to show the lowest sensitivity to the spatial variability of the environment quality. The BMWP_PL index was the least sensitive to year-to-year environmental changes, and O/Ch was the most sensitive. Relatively high conformity was obtained between hydro-morphological assessments performed by means of the OP and IL methods. Results obtained by means of these tools weakly corresponded with the physical-chemical assessments. The latter assessments were the most similar to those obtained by means of the BMWP_PL (degree of similarity = 57%) and D (47%) indices, and considerably less in the case of O/Ch (36%). The BMWP_PL and D indices better corresponded with the results of the hydro-morphological assessment performed by means of the IL method than with those performed by means of the OP method while D index showed a reverse pattern. The O/CH index proved useful for the assessment of the degree of organic pollution of the river’s water, but not the sediments.

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