Eutrophication dangers the ecological status of coastal wetlands: A quantitative assessment by composite microbial index of biotic integrity

2021 ◽  
pp. 151620
Author(s):  
Lihua Niu ◽  
Guanhua Zou ◽  
Yuntong Guo ◽  
Yi Li ◽  
Chao Wang ◽  
...  
Keyword(s):  
Coastal Wetlands ◽  
Quantitative Assessment ◽  
Ecological Status ◽  
Index Of Biotic Integrity ◽  
Biotic Integrity

Water Quality Parameters and Macroinvertebrates Index of Biotic Integrity of the Jimma Wetlands, Southwestern Ethiopia

2010 ◽  
Vol 3 ◽  
pp. 79-99 ◽  
Author(s):  
Hayal Desta Yimer ◽  
Seyoum Mengistou
Keyword(s):  
Water Quality ◽  
Human Disturbance ◽  
Ecological Status ◽  
Quality Parameters ◽  
Index Of Biotic Integrity ◽  
Water Quality Parameters ◽  
Biotic Integrity ◽  
Chemical Parameters ◽  
Southwestern Ethiopia ◽  
Physico Chemical

The wetlands located at the periphery of Jimma town, southwestern Ethiopia, have critical roles in providing a range of ecological and socio-economic benefits, yet they are subject to increasing anthropogenic disturbances, notably through agriculture, settlement, intensive grazing and brick-making. This study assessed the ecological status of these wetlands, and examined the scale of the human disturbances that local communities might impose on them. Macroinvertebrate communities, water quality parameters, and human disturbance scores were assessed. Except for electrical conductivity and water temperature, no significant difference (P < 0.05) was found in physico-chemical parameters between the sampled sites. Nitrate was the only parameter that correlated with significant influence on species richness of the sampled macroinvertebrates. A total of 10 metrics were used to generate the index of biotic integrity (IBI). This IBI was then tested based on macroinvertebrate data collected. Ways of assessing and evaluating the existing ecological status of the wetlands are discussed in the context of physico-chemical parameters, IBI based on macroinvertebrates and human disturbance scales. Key Words: Catchments land use; Water quality; Macroinvertebrate; Index of Biotic Integrity; Wetland DOI: 10.3126/jowe.v3i0.2265 Journal of Wetlands Ecology, (2009) Vol. 3, pp 77-93

Fish Habitat Use Within and Across Wetland Classes in Coastal Wetlands of the Five Great Lakes: Development of a Fish-based Index of Biotic Integrity

2005 ◽  
Vol 31 ◽  
pp. 171-187 ◽  
Author(s):  
Donald G. Uzarski ◽  
Thomas M. Burton ◽  
Matthew J. Cooper ◽  
Joel W. Ingram ◽  
Steven T.A. Timmermans
Keyword(s):  
Habitat Use ◽  
Great Lakes ◽  
Coastal Wetlands ◽  
Fish Habitat ◽  
Index Of Biotic Integrity ◽  
Biotic Integrity

scholarly journals An expanded fish-based index of biotic integrity for Great Lakes coastal wetlands

2018 ◽  
Vol 190 (10) ◽  
Author(s):  
Matthew J. Cooper ◽  
Gary A. Lamberti ◽  
Ashley H. Moerke ◽  
Carl R. Ruetz ◽  
Douglas A. Wilcox ◽  
...  
Keyword(s):  
Great Lakes ◽  
Coastal Wetlands ◽  
Index Of Biotic Integrity ◽  
Biotic Integrity ◽  
Great Lakes Coastal Wetlands

Development of a preliminary invertebrate index of biotic integrity for Lake Huron coastal wetlands

Wetlands ◽  
1999 ◽  
Vol 19 (4) ◽  
pp. 869-882 ◽  
Author(s):  
Thomas M. Burton ◽  
Donald G. Uzarski ◽  
Joseph P. Gathman ◽  
John A. Genet ◽  
Brian E. Keas ◽  
...  
Keyword(s):  
Coastal Wetlands ◽  
Index Of Biotic Integrity ◽  
Lake Huron ◽  
Biotic Integrity

scholarly journals A new fish-based index of biotic integrity for lowland rivers in Flanders (Belgium)

2021 ◽  
Vol 151 ◽  
Author(s):  
Jan Breine ◽  
Ericia Van den Bergh ◽  
Gerlinde Van Thyune ◽  
Claude Belpaire
Keyword(s):  
Ecological Status ◽  
Independent Set ◽  
Index Of Biotic Integrity ◽  
Biotic Integrity ◽  
Reference List ◽  
Ecological Quality ◽  
Lowland Rivers ◽  
Pressure Indicators ◽  
Using Data

The first fish-based index to assess the ecological quality of lowland rivers in Flanders (Belgium) is based on data obtained from different fishing techniques without considering the gear specificity. As a consequence, this index could not be intercalibrated with other European indices which concentrate on one gear type only. In order to comply with the European Water Framework Directive, we developed a new fish-based index using data obtained from surveys in rivers with electric gear only. All 293 selected rivers belonged to the bream or barbel zone. An updated reference list of fish species was compiled based on previous work and recent data. Abiotic data were collected according to standard methods and habitat quality of all surveyed sites was pre-classified using pressure indicators. To develop the new index candidate metrics were selected from the literature and metric values were calculated. Linear mixed regression models selected metrics based on their response to the pre-classified habitat status. Correlation tests were performed to avoid redundancy among responsive metrics. Boundaries for metric scores were defined based on the calculated metric values. The new index of biotic integrity (IBI) was calculated by summation of the metric scores, and transformed to an ecological quality ratio (EQR), ranging between 0 and 1. Five integrity classes, ranging from bad to maximal ecological potential, were attributed and compared to the pre-classified habitat status of the site. In addition, the new index was also validated with an independent set of data. The new IBI proved to successfully assess the ecological status of the rivers.

Testing a Fish Index of Biotic Integrity for Responses to Different Stressors in Great Lakes Coastal Wetlands

2007 ◽  
Vol 33 (sp3) ◽  
pp. 224-235 ◽  
Author(s):  
Yakuta Bhagat ◽  
Jan J. H. Ciborowski ◽  
Lucinda B. Johnson ◽  
Donald G. Uzarski ◽  
Thomas M. Burton ◽  
...  
Keyword(s):  
Great Lakes ◽  
Coastal Wetlands ◽  
Index Of Biotic Integrity ◽  
Biotic Integrity ◽  
Great Lakes Coastal Wetlands ◽  
Fish Index
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