scholarly journals Water-Quality and Fish-Community Data for the Niobrara National Scenic River, Nebraska, 2003-05

Fact Sheet ◽  
2008 ◽  
Author(s):  
Benjamin Dietsch
Keyword(s):  
Water Quality ◽  
Fish Community ◽  
Community Data

scholarly journals Water quality, habitat, land use, waterfowl, and fish community data from wetlands in the Boreal Transition Zone, Alberta

Ecology ◽  
2014 ◽  
Vol 95 (3) ◽  
pp. 789-789 ◽  
Author(s):  
Agnes S. Wong ◽  
Suzanne E. Bayley ◽  
Jonathan E. Thompson
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Transition Zone ◽  
Fish Community ◽  
Community Data

Factors driving temporospatial heterogeneity of fish community health in Jinan City, China

2019 ◽  
Vol 70 (5) ◽  
pp. 637 ◽  
Author(s):  
C. S. Zhao ◽  
Y. Yang ◽  
S. Yang ◽  
Y. Gai ◽  
C. Zhang ◽  
...  
Keyword(s):  
Water Quality ◽  
Fish Community ◽  
Oxygen Demand ◽  
Physical Factor ◽  
Field Trips ◽  
Driving Factors ◽  
Chemical Factor ◽  
River Health ◽  
Jinan City ◽  
Fish Survival

Jinan City is the first pilot city for the construction of a hydroecological civilisation in China. Fifty-eight representative river sampling stations were selected through field trips and surveys, and fish were sampled in the spring, summer, and autumn of 2015. An index of fish biological integrity in Jinan City was constructed and to evaluate the hydroecological health of rivers. Canonical correlation analysis was used to select key driving factors that affect the health of the fish community. The results show that the key physical factor affecting water quality was turbidity, the key chemical factor affecting water quality was chemical oxygen demand (COD) and the key hydrological factor affecting water quality was discharge. Of all the driving factors, COD had the greatest effect on the health of the fish community, followed by discharge and turbidity. Macropodus chinensis Bloch was sensitive to changes in COD; Saurogobio dumerili Bleeker and Pseudolaubuca engraulis Nichols were sensitive to the hydrological factors of discharge and flow velocity; and Saurogobio gymnocheilus Lo and Squaliobarbus ourriculus Richardson were sensitive only to discharge. COD and discharge had a strong effect on fish survival, whereas turbidity affected fish survival but was not a major factor affecting the spatial distribution of river health. The findings can provide a reference for aquatic ecological rehabilitation in developing countries.

Changes in the Zoobenthos Community of Acidified Bowland Lake after Whole-Lake Neutralization and Lake Trout (Salvelinus namaycush) Reintroduction

1990 ◽  
Vol 47 (2) ◽  
pp. 440-445 ◽  
Author(s):  
W. Keller ◽  
Lewis A. Molot ◽  
Ronald W. Griffiths ◽  
N. D. Yan
Keyword(s):  
Water Quality ◽  
Fish Community ◽  
Lake Trout ◽  
Size Structure ◽  
Salvelinus Namaycush ◽  
Total Abundance ◽  
Insufficient Time

The zoobenthos of Bowland Lake is described prior to, and for 2 yr after, neutralization of the lake from pH 4.9 to > 6.0 and reintroduction of lake trout (Salvelinus namaycush). Observed changes in the total abundance, biomass, and size structure of shallow and profundal zoobenthos assemblages were attributable to changes in the fish community, not to improvements in water quality. A shift toward increased importance of oligochaetes, more representative of nonacidic conditions, occurred. However, many common, acid-sensitive taxa of zoobenthos which were absent prior to neutralization had not appeared within 2 yr after treatment, indicating insufficient time for recolonization.

scholarly journals Applying Community Data Reporting Formats to Open-Source Water Quality Data

2021 ◽  
Author(s):  
Dylan O'Ryan ◽  
Robert Crystal-Ornelas ◽  
Deb Agarwal ◽  
Kristin Boye ◽  
Shreyas Cholia ◽  
...  
Keyword(s):  
Water Quality ◽  
Open Source ◽  
Quality Data ◽  
Source Water ◽  
Water Quality Data ◽  
Data Reporting ◽  
Community Data ◽  
Source Water Quality

Local habitat features explain the distribution of the imperiled grass pickerel (Esox americanus vermiculatus)

2019 ◽  
Vol 97 (5) ◽  
pp. 479-487
Author(s):  
J.E. Colm ◽  
N.E. Mandrak ◽  
B.L. Tufts
Keyword(s):  
Fish Community ◽  
Agricultural Land ◽  
Sampling Methods ◽  
Habitat Preferences ◽  
Field Sampling ◽  
Community Assemblage ◽  
Habitat Features ◽  
Community Data ◽  
Local Habitat ◽  
Habitat Variables

We investigated patterns of grass pickerel (Esox americanus vermiculatus Lesueur, 1846) distribution in three watersheds in Ontario, Canada, using site- and reach-scale habitat variables and fish community assemblage data to determine why this species occurs sporadically throughout watersheds despite abundant seemingly suitable, but unoccupied, habitat. Habitat and fish community data were collected using conventional field sampling methods, and reach-scale habitat data were compiled with the aid of a geographic information system. We found that occupied sites had lower baseflow indices and reach slopes but higher conductivity and agricultural land uses than unoccupied sites. More grass pickerel were detected when conductivity, channel cover, and wetlands in the floodplain were highest and bank slopes lowest; this is consistent with habitat preferences described elsewhere in its range. Habitat features at the site scale appeared more important than reach-scale features suggesting that grass pickerel may be using small habitat patches. This study identifies habitat elements important to grass pickerel and offers insights into management implications.

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