A diatom voucher flora from selected southeast rivers (USA)

Phytotaxa ◽  
2017 ◽  
Vol 332 (2) ◽  
pp. 101 ◽  
Author(s):  
IAN W. BISHOP ◽  
RHEA M. ESPOSITO ◽  
MEREDITH TYREE ◽  
SARAH A. SPAULDING
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Quality Parameters ◽  
Federal State ◽  
Federal Programs ◽  
Stream Quality ◽  
State And Local ◽  
The U.S ◽  
Long Term Studies

This flora is intended to serve as an image voucher for samples analyzed for the U.S. Geological Survey Southeast Stream Quality Assessment (SESQA). The SESQA study included measurement of watershed and water quality parameters to determine the factors that have the greatest potential to alter biotic condition. Algal samples were collected at 108 sites in 2014, from streams representing gradients in chemical and physical alteration across the southeast region. More than 375 taxa were identified during analysis for species composition and abundance. This manuscript documents the flora with light micrographs of specimens representative of their morphologic range. We define “voucher flora” as images of specimens and the names applied to those specimens for a given project. Taxonomic vouchers from federal programs have generally not been made public, yet they are a salient element of a well-documented species dataset, particularly for long-term studies. This study is part of a broader effort to improve and encourage taxonomic consistency in federal, state and local programs by accessible identification resources and inter-lab comparisons

scholarly journals The long-term impact of rail abandonment on manufacturing in Arkansas

2014 ◽  
Vol 24 (2) ◽  
pp. 63-78
Author(s):  
John D Ozment ◽  
Ahren Johnston
Keyword(s):  
Economic Development ◽  
Strategic Planning ◽  
Negative Impact ◽  
Federal State ◽  
Local Manufacturing ◽  
State And Local ◽  
Long Term Impact ◽  
Rail Service ◽  
The U.S

Despite the fact that railroads are an important part of the U.S. economy, the number of rail carriers and miles of rail lines have been declining. The resulting lack of transportation alternatives could have a negative impact on local manufacturing. This study examined the effects of rail abandonment in Arkansas between 1980 and 2000 by comparing measures related to manufacturing in counties that did not have or had lost some rail service with those in counties that had rail service and had not lost any. The analysis revealed no meaningful differences, suggesting the lack of any adverse economic impacts due to rail abandonment. The findings provide important insights for federal, state, and local policymakers and economic development officials; and for railroad economic development, government affairs, and strategic planning management.

scholarly journals Assessment of Water Quality in Indo-Gangetic Plain of South-Eastern Asia under Organic vs. Conventional Rice Farming

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 960
Author(s):  
Debjani Sihi ◽  
Biswanath Dari ◽  
Zhengjuan Yan ◽  
Dinesh Kumar Sharma ◽  
Himanshu Pathak ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Basmati Rice ◽  
Conventional Farming ◽  
Eastern Asia ◽  
Gangetic Plain ◽  
South Eastern ◽  
The Impact ◽  
Indo Gangetic Plain

Water contamination is often reported in agriculturally intensive areas such as the Indo-Gangetic Plain (IGP) in south-eastern Asia. We evaluated the impact of the organic and conventional farming of basmati rice on water quality during the rainy season (July to October) of 2011 and 2016 at Kaithal, Haryana, India. The study area comprised seven organic and seven conventional fields where organic farming has been practiced for more than two decades. Water quality parameters used for drinking (nitrate, NO3; total dissolved solids (TDS); electrical conductivity (EC) pH) and irrigation (sodium adsorption ratio (SAR) and residual sodium carbonate (RSC)) purposes were below permissible limits for all samples collected from organic fields and those from conventional fields over the long-term (~15 and ~20 years). Importantly, the magnitude of water NO3 contamination in conventional fields was approximately double that of organic fields, which is quite alarming and needs attention in future for farming practices in the IGP in south-eastern Asia.

Patterns of long-term dynamics of aquatic communities and water quality parameters in the Great Lakes: Are they synchronized?

2018 ◽  
Vol 44 (4) ◽  
pp. 660-669 ◽  
Author(s):  
Katya E. Kovalenko ◽  
Euan D. Reavie ◽  
Richard P. Barbiero ◽  
Lyubov E. Burlakova ◽  
Alexander Y. Karatayev ◽  
...  
Keyword(s):  
Water Quality ◽  
Great Lakes ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Aquatic Communities

scholarly journals Assessment of the abundance and species composition of Phytoplankton of Moiur river, Khulna

2015 ◽  
Vol 21 ◽  
pp. 27-34 ◽  
Author(s):  
Md Lifat Rahi ◽  
Sarower E Mahfuj ◽  
Sk Shahinur Islam ◽  
S Saiful Islam ◽  
Wasim Sabbir
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Polluted Water ◽  
Optimum Level ◽  
Phytoplankton Abundance ◽  
The Family ◽  
Total Phytoplankton ◽  
Positive Correlations

Context: Phytoplanktonic community structure in an aquatic body embodies the energy transfer through this phase and indicates the tropic status. Objectives: The present study was conducted to assess the phytoplankton abundance and species composition of Mouri River, Khulna, Bangladesh. Materials and Methods: Water samples were collected from six different stations once in a week for a period of 6 months (February- July) 2010. Results: In total 48 different species of 23 genus and 4 families were identified. Phytoplankton abundance varied from 805 to 1788 individuals/L in different stations. The highest abundance was observed for the family chlorophyceae that constituted 27-50.56% of the total phytoplankton biomass throughout the river. Highest number of phytoplankton species (22) was also recorded for the family chlorophyceae. The most diverse genus was Navicula (6). Some aspects of the water quality parameters were measured by regression analysis and significant correlations were also observed between water quality parameters and phytoplankton abundance. Water temperature, pH, DO, Free CO2, alkalinity, hardness, calcium and magnesium showed positive correlations with total phytoplankton abundance where as transparency, TDS, TSS, sulfate phosphate and nitrite showed negative correlations. Conclusion: In most of the cases, phytoplankton abundance and water quality parameters showed greater deviation from the optimum level. However, the results of the present experiment confirmed the polluted water of the river. DOI: http://dx.doi.org/10.3329/jbs.v21i0.22516 J. bio-sci. 21: 27-34, 2013

The “Poli-Migra”

2014 ◽  
Vol 58 (13) ◽  
pp. 1805-1819 ◽  
Author(s):  
Cecilia Menjívar
Keyword(s):  
Case Studies ◽  
Policy Reform ◽  
Local Level ◽  
Immigration Law ◽  
Federal State ◽  
Immigrant Incorporation ◽  
Long Term Effects ◽  
Sound Policy ◽  
State And Local

This article discusses what we know about immigration law in the lives of Latinos today and what we learn from this knowledge to possibly establish links beyond specific case studies. We know a great deal about the multilayered enforcement regime in place today—the federal, state, and local level laws and ordinances and the various enforcement strategies—which act all at once in highly articulated fashion to affect the lives of immigrants, their families, and communities. What we learn from this accumulated knowledge—the unevenness of enforcement across contexts, the heterogeneity of experiences among Latinos as not all are affected in the same way, and the short- and possible long-term effects—can be helpful for theorizing more broadly about immigrant incorporation and can also serve to formulate sound policy reform.

Using National Financial Incentives to Build Local Resiliency: The U.S. Disaster Mitigation Act

2010 ◽  
Vol 5 (2) ◽  
pp. 164-171
Author(s):  
Kenneth C. Topping ◽  
Keyword(s):  
Financial Incentives ◽  
Local Governments ◽  
Hazard Mitigation ◽  
Disaster Mitigation ◽  
Federal Grants ◽  
Local Resilience ◽  
State And Local ◽  
The U.S

The U.S. Congress passed the Disaster Mitigation Act of 2000 (DMA 2000) which requires adoption of multihazard mitigation plans as a precondition of local government eligibility for federal pre-disaster and postdisaster hazard mitigation grants. Its underlying purpose was to encourage local governments to systematically plan for reducing risks and future disaster losses before requesting federal grants to execute hazard mitigation projects. This paper examines the DMA 2000 legislation, its purposes, and the responses to it by state and local governments. Among other things the paper: 1) describes DMA 2000 statutory requirements, 2) assesses overall participation by region, 3) uses the State of California as a case study to examines hazard mitigation plan compliance issues, and 4) explores long-term implications of this broad national effort to use financial incentives to increase local resilience. By early 2009, 18,783 locally adopted hazard mitigation plans had been approved by FEMA. Although community resilience outcomes cannot be truly assessed without further research, the magnitude of this response implies substantial long-term local capacity building benefits within the U.S. This experience should also be the subject of comparative research regarding parallel efforts elsewhere.

scholarly journals Pool water quality and prevalence of microbes in filter backwash from metro-Atlanta swimming pools

2017 ◽  
Vol 16 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Jennifer L. Murphy ◽  
Michele C. Hlavsa ◽  
Brittany C. Carter ◽  
Candace Miller ◽  
Narayanan Jothikumar ◽  
...  
Keyword(s):  
Water Quality ◽  
Giardia Duodenalis ◽  
Quality Parameters ◽  
Residual Chlorine ◽  
Biofilm Growth ◽  
E Coli ◽  
Pool Water ◽  
Health Practitioners ◽  
Polymerase Chain ◽  
State And Local

Abstract During the 2012 summer swim season, aquatic venue data and filter backwash samples were collected from 127 metro-Atlanta pools. Last-recorded water chemistry measures indicated 98% (157/161) of samples were from pools with ≥1 mg/L residual chlorine without stabilized chlorine or ≥2 mg/L with stabilized chlorine and 89% (144/161) had pH readings 7.2–7.8. These water quality parameters are consistent with the 2016 Model Aquatic Health Code (2nd edition) recommendations. We used previously validated real-time polymerase chain reaction assays for detection of seven enteric microbes, including Escherichia coli, and Pseudomonas aeruginosa. E. coli was detected in 58% (93/161) of samples, signifying that swimmers likely introduced fecal material into pool water. P. aeruginosa was detected in 59% (95/161) of samples, indicating contamination from swimmers or biofilm growth on surfaces. Cryptosporidium spp. and Giardia duodenalis were each detected in approximately 1% of samples. These findings indicate the need for aquatics staff, state and local environmental health practitioners, and swimmers to each take steps to minimize the risk of transmission of infectious pathogens.

scholarly journals Correlation between macroalgae diversity and water quality in Southwest Maluku waters

2020 ◽  
Vol 45 (1) ◽  
pp. 25-32
Author(s):  
Marsya Jaqualine Rugebregt ◽  
Hairati Arfah ◽  
Ferdinand Pattipeilohy
Keyword(s):  
Water Quality ◽  
Principal Component Analysis ◽  
Species Composition ◽  
Diversity Index ◽  
Principal Component ◽  
Quality Parameters ◽  
Nursery Ground ◽  
Water Sampler ◽  
Phosphate Nitrate ◽  
Seawater Quality

Macroalgae play an important role in the ecosystem of the coastal area, serving as a shelter ground, nursery ground, and feeding ground. Macroalgae communities are directly influenced by water quality. This study aim was to determine the correlation between the macroalgae diversity and water quality in southwest Maluku waters. This research was conducted in September 2019 at seven research stations. Macroalgae samples were collected by transect method, while seawater quality was measured using Van Dorn Water Sampler. The macroalgae diversity, species composition, and dominance were determined. Water quality parameters analyzed were temperature, salinity, pH, phosphate, nitrate, and ammonia. Correlations between macroalgae diversity and water quality were determined using principal component analysis. This study recorded 45 species of macroalgae consisting of 15 species of red algae (Rhodophyta), 6 species of brown algae (Phaeophyta), and 24 species of green algae (Chlorophyta). Diversity Index varied ranged from low to moderate categories (0.969 - 2.345). Water quality in general is still quite good for macroalgae life. Macroalgae diversity and water quality correlate and influence each other.

scholarly journals Washington Hotline

2019 ◽  
Vol 80 (2) ◽  
pp. 116
Author(s):  
Gavin Baker
Keyword(s):  
Academic Libraries ◽  
Federal Funding ◽  
Electoral College ◽  
Federal State ◽  
Social Scientists ◽  
Public And Private ◽  
The Public ◽  
State And Local ◽  
The U.S

Libraries can ensure everyone counts in 2020 CensusThe upcoming 2020 Census will have repercussions for communities across the country. Academic libraries can play important roles in promoting a fair and accurate count.Census data is key to the allocation of billions of dollars in federal funding to states and localities, such as education and healthcare programs. The decennial count of all residents is required by the U.S. Constitution to determine representation in Congress and the Electoral College, and is the basis for drawing districts for federal, state, and local offices. In addition, data resulting from the census is widely used by the public and private sectors for research and planning, including many social scientists.

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