scholarly journals Trace Metal Levels in Muscles and Exoskeleton of Pink Shrimp (Penaeus brasiliensis and paulensis) from a Subtropical Coastal Region, Laguna Estuarine System, Brazil

2021 ◽  
Vol 9 (1) ◽  
pp. 320
Author(s):  
Cíntia Souza da Silva ◽  
Jair Juarez João ◽  
Marcos Henrique Luciano Silveira ◽  
Paulo Cesar de Jesus
Keyword(s):  
Bioconcentration Factor ◽  
Coastal Region ◽  
In Situ Monitoring ◽  
Estuarine System ◽  
Pink Shrimp ◽  
Metal Concentrations ◽  
Marine Life ◽  
Brazilian Legislation ◽  
Metal Levels

Contamination by heavy metals produced by either anthropogenic or natural activities represents a threat to man and marine life. The present paper aimed to carry out in situ monitoring of trace metals using shrimp species from an estuarine area as a bioindicator of environmental contamination. The shrimps were captured by fyke net during the rainy and dry periods, and the metal concentrations in the muscles and exoskeletons were determined. The results showed that the metal concentrations decrease in the following order Fe> Zn> Cu> Mn> Cr> As> Pb> Cd for both samples groups, muscles and exoskeletons, being the muscles presented lower concentrations. Metal concentrations were within the permissible limits allowed by the Brazilian legislation, except for Pb. Bioconcentration factor was below 1 for most of the metals, what it means that metals are not accumulating in the shrimp body.

scholarly journals GIS Models for Vulnerability of Coastal Erosion Assessment in a Tropical Protected Area

2021 ◽  
Vol 10 (9) ◽  
pp. 598
Author(s):  
Luís Russo Vieira ◽  
José Guilherme Vieira ◽  
Isabel Marques da Silva ◽  
Edison Barbieri ◽  
Fernando Morgado
Keyword(s):  
Vulnerability Assessment ◽  
Protected Area ◽  
Coastal Erosion ◽  
Geographical Information Systems ◽  
Multidisciplinary Approach ◽  
In Situ Monitoring ◽  
Geographical Information ◽  
Estuarine System ◽  
Very High

Coastal erosion is considered a major worldwide challenge. The vulnerability assessment of coastal areas, in relation to climate change, is a key topic of worldwide increasing interest. The integration of methodologies supported by Remote Sensing, Geographical Information Systems (GIS) and in situ monitoring has allowed a viable identification of vulnerable areas to erosion. In the present study, a model was proposed to the assessment of the estuarine system of Cananéia-Iguape (Brazil), by applying the evaluation and prediction of vulnerability models for the conservation and preservation of mangroves. Approximately 1221 Km2 were classified, with 16% of the total presenting high and very high vulnerability to erosion. Other relevant aspects, were the identification and georeferencing sites that showed strong evidence of erosion and, thus, having a huge influence on the final vulnerability scores. The obtained results led to the development of a multidisciplinary approach through the application of a prediction and description model that resulted from the adaptation of the study system from a set of implemented models for coastal regions, in order to contribute to the erosion vulnerability assessment in the mangroves ecosystems (and associated localities, municipalities and communities).

Electrochemical flow sensor for in-situ monitoring of total metal concentrations

1998 ◽  
Vol 35 (8) ◽  
pp. 241-243 ◽  
Author(s):  
Joseph Wang ◽  
Baomin Tian ◽  
Jianyan Wang
Keyword(s):  
Flow Sensor ◽  
In Situ Monitoring ◽  
Metal Concentrations ◽  
Total Metal

scholarly journals Development of an electrochemical sensor for in-situ monitoring of reactive species produced by cold physical plasma

2021 ◽  
Vol 326 ◽  
pp. 129007
Author(s):  
Zahra Nasri ◽  
Giuliana Bruno ◽  
Sander Bekeschus ◽  
Klaus-Dieter Weltmann ◽  
Thomas von Woedtke ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Reactive Species ◽  
In Situ Monitoring ◽  
Physical Plasma

In Situ Monitoring of Polaron Localization and Cell Activity with Charge Accumulation Spectroscopy

2021 ◽  
pp. 2105799
Author(s):  
Yu Zhang ◽  
Li Yang ◽  
Jintao Wang ◽  
Wangying Xu ◽  
Qiming Zeng ◽  
...  
Keyword(s):  
Cell Activity ◽  
In Situ Monitoring ◽  
Charge Accumulation
Sign in / Sign up

Export Citation Format

Share Document