Water Quality in the Everglades Protection Area

2015 ◽  
pp. 11-37
Author(s):  
James Entry ◽  
Andrew Gottlieb
Keyword(s):  
Water Quality ◽  
Protection Area ◽  
Everglades Protection Area

Water quality in an urban environmental protection area in the Cerrado Biome, Brazil

2019 ◽  
Vol 191 (2) ◽  
Author(s):  
Helder Pereira de Figueiredo ◽  
Cibele Rigolin Pereira de Figueiredo ◽  
João Henrique de Souza Barros ◽  
Michel Constantino ◽  
Fernando Jorge Corrêa Magalhães Filho ◽  
...  
Keyword(s):  
Water Quality ◽  
Environmental Protection ◽  
Cerrado Biome ◽  
Environmental Protection Area ◽  
Protection Area

Freshwater pathways and litter

2020 ◽  
Author(s):  
María Cabrera Fernández
Keyword(s):  
Water Quality ◽  
Water Flow ◽  
The European Union ◽  
Marine Litter ◽  
Data Field ◽  
Different Types ◽  
Protection Area ◽  
Union Directive ◽  
Special Protection

<p>In recent years, there has been an increasing number of studies about freshwater micro-litter  and how it ends up in the ocean. Nevertheless, macro-litter studies are not common in freshwater landscapes and yet less frequent among rivers. Almost always, research is focused on estuaries rather than rivers.</p><p>The Asociación Paisaje Limpio has been developed, for some years, several studies as an affordable methodology to measure macro-litter in rivers throughout its.</p><p>This way, our methodology is a combination between research and action. We don’t just tackle the macro-litter data field, but also identify specific litter problems along the river. We act through campaigns, agreement for companies and public administrations, etc.</p><p>A need have been observed to combined different types of methodology to monitoring different types of rivers in order to be able to draw a conclusion:</p><ul><li><strong>Visual counting</strong>: counting floating macro-litter on <strong>surface </strong>using RIMMEL app.</li> <li>By the <strong>riverbank,</strong>through a <strong>Citizen Science</strong> tool create by Asociación Paisaje Limpio and Asociación Vertidos Cero, called <strong>eLitter</strong>. Elitter is harmonized with other marine-litter methodologies (Marine litter watch, MARNOBA in Spain) and its litter classification is based on OSPAR protocol.</li> <li>If the <strong>riverbed </strong>is accessible eLitter is also used, but when is not accessible a dredge "Van Veen" have been used instead. This method has been applied in other marine-litter projects on seabed.</li> <li><strong>Floating booms</strong>: it lets us know plastics rate in captured floating litter, and the water flow extrapolation.</li> <li><strong>Nets from a kayak</strong>: to study the plastic concentration  in <strong>the water column </strong>and the water flow extrapolation.</li> <li><strong>Water quality general analysis:</strong>this analysis is useful to support the hypothesis about litter’s source in a river, mainly where the source is the sewage as happens with wet wipes, ear sticks...</li> </ul><p>-<strong>Case study</strong>: river Lagares, a spanish river in Pontevedra, Galicia. The river Lagares flows into the Atlantic, in a Special Protection Area (SPA), a designation under the European Union Directive on the Conservation of Wild Birds.</p><p>The Asociación Paisaje Limpio is working on this river since 2018. We have applied the different methodologies explained before, in the river Lagares.</p>

Effects of small changes in riparian forest complexity on aquatic insect bioindicators in Brazilian subtropical streams

2017 ◽  
Vol 68 (3) ◽  
pp. 519 ◽  
Author(s):  
A. E. Siegloch ◽  
R. Schmitt ◽  
M. Spies ◽  
M. Petrucio ◽  
M. I. M. Hernández
Keyword(s):  
Water Quality ◽  
Environmental Gradient ◽  
Functional Group ◽  
Riparian Forest ◽  
Aquatic Insect ◽  
Riparian Forests ◽  
Important Indicator ◽  
Positive Effects ◽  
Species Analysis ◽  
Protection Area

Riparian forests have positive effects on water quality and biodiversity. However, most studies have only tested the effects of distinct vegetation types or streams with and without forests, despite the fact that riparian forests differ in degrees of complexity. The aim of the present study was to test whether riparian forest complexity affected the composition and abundance of the Ephemeroptera, Plecoptera and Trichoptera (EPT) taxa across a small environmental gradient. We also measured whether EPT genera or feeding groups responded to changes in riparian forest complexity. The study was conducted in two protection areas (i.e. Lagoa do Peri Municipal Park, PERI; and the Permanent Protection Area of Ratones, RAT) of Santa Catarina Island, Brazil. Primary production increased in streams with lower canopy percentage, and EPT assemblages differed among streams with different riparian forest complexity. In RAT, the water quality and forest variables affected EPT composition; however, in PERI, only water quality variables were important. Indicator species analysis based on genera suggested Kempnyia (Plecoptera) and Zelusia (Ephemeroptera) to be indicative of streams with greater forest complexity, whereas Farrodes (Ephemeroptera) was significant in streams of intermediate riparian forest complexity; however, no one functional group dominated. The results of the present study show that small changes in riparian forest complexity influence the composition of EPT insects in subtropical streams.

scholarly journals Fish Mercury and Surface Water Sulfate Relationships in the Everglades Protection Area

2014 ◽  
Vol 53 (3) ◽  
pp. 583-593 ◽  
Author(s):  
Mark C. Gabriel ◽  
Nicole Howard ◽  
Todd Z. Osborne
Keyword(s):  
Surface Water ◽  
Protection Area ◽  
Everglades Protection Area

scholarly journals Determination of the water quality index in two rural properties in the Municipality of Guatambu-SC/ Determinação do índice de qualidade da água em duas propriedades rurais no Município de Guatambu-SC

2021 ◽  
Vol 7 (4) ◽  
pp. 34480-34491
Author(s):  
Matheus Cavali ◽  
Ana Paula Fagundes ◽  
Deise Regina Lazzarotto
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Oxygen Demand ◽  
Surface Water Quality ◽  
Quality Analysis ◽  
Human Consumption ◽  
Quality Of Water ◽  
Protection Area ◽  
Two Parameters

Knowing the quality of water resources is fundamental to guarantee its different functions in the environment. In this sense, this study highlighted the relationship between land use and occupation with water quality, since the objective was to assess water quality in two rural properties in the municipality of Guatambu in the state of Santa Catarina, Brazil. Five points for analysis and their geographic coordinates were demarcated in each property using the Global Positioning System (GPS) and inserted into the Quantum GIS (QGIS) software for spatial assessment. For the water quality analysis of each point, the following parameters were determined: pH, electrical conductivity, dissolved oxygen, color, turbidity, alkalinity, chlorides and biochemical oxygen demand. According to these results, the Bascarán surface water quality index (SWQIB) was estimated. As demonstrated by the results, both properties presented an SWQIB ranging from “medium” to “good”. However, when comparing the points intended for human consumption with the Brazilian Decree 2,914 of December 2011, it was found that the color and turbidity parameters were in disagreement in some cases. However, these two parameters can easily vary. In addition, it was noted that points classified with SWQIB "good" have a better protection area when compared to points classified with SWQIB "medium". 

scholarly journals Histopathological and hematological biomarkers in tambaqui Colossoma macropomum (Cuvier, 1816) from an environmental protection area of Maranhão, Brazil

2019 ◽  
Vol 14 (1) ◽  
pp. 1
Author(s):  
Jonatas Da Silva Castro ◽  
Camilla Fernanda Lima Sodré ◽  
Caroline Bogéa Souza ◽  
Débora Batista Pinheiro Sousa ◽  
Raimunda Nonata Fortes Carvalho Neta
Keyword(s):  
Water Quality ◽  
Environmental Protection ◽  
Branchial Arch ◽  
Fish Farms ◽  
Colossoma Macropomum ◽  
Mucosal Cells ◽  
Environmental Protection Area ◽  
Protection Area ◽  
Fish Collection ◽  
Nuclear Alterations

This study analyzed histopathological (gill lesions) and hematological (erythrocyte abnormalities) changes in tambaqui (Colossoma macropomum) in order to evaluate the water quality of fish farms in the Environmental Protection Area (EPA) of Maracanã, Maranhão, Brazil. Specimens of tambaqui were captured in two areas of EPA: A1) Serena Lagoon, and A2) River Ambude, in two seasonal periods, rainy and dry. For the hematological analyses, slides were made from the blood smear collected from the branchial arch of the fish. In the laboratory, the gills of each specimen were fixed in 10% formalin and maintained in 70% alcohol until the usual histological technique. The branchial changes were more frequent during the dry season in both areas. In the fish collection in A2, the following changes were noted: mucosal cells (78%), lamellar fusion (90%), lamellar disorganization (100%), lamellar narrowing (100%), and epithelial displacement (96%). In the fish collection in A1, the main lesions were: aneurysm (88%), dilation of the capillaries (82%), rupture of the capillaries (60%). In addition, nuclear alterations, such as binucleate cells (BC), cells with an evaginated nucleus (CEN) and cells with a lobulated carved nucleus (CLCN), were observed in the fish from both areas. The frequency of abnormalities was higher in the fish from A2 (74%) when compared to the fish from A1 (26%). In conclusion, we found that these alterations proved to be sensitive biomarkers capable of differentiating water quality and fish health status in the two systems in the Maracanã EPA.  

Sign in / Sign up

Export Citation Format

Share Document