Determination of Upper Temperature Tolerance Triangles for Aquatic Organisms

1969 ◽  
Vol 10 (3/4) ◽  
pp. 293 ◽  
Author(s):  
Andrew J. McErlean ◽  
Joseph A. Mihursky ◽  
Howard J. Brinkley
Keyword(s):  
Aquatic Organisms ◽  
Temperature Tolerance

Determination of the degree of heavy metals accumulation in the bug estuary aquatic organisms

2016 ◽  
Vol 0 (4) ◽  
Author(s):  
Ganna G. Trokhymenko ◽  
Nina V. Tsyhanyuk
Keyword(s):  
Heavy Metals ◽  
Aquatic Organisms ◽  
Heavy Metals Accumulation ◽  
Metals Accumulation

A method for determination of fresh weight of aquatic organisms

1983 ◽  
Vol 66 (1) ◽  
pp. 89-92
Author(s):  
Frede Østergaard Andersen ◽  
Per Famme
Keyword(s):  
Aquatic Organisms ◽  
Fresh Weight

Simultaneous determination of α-tocopheryl acetate and tocopherols in aquatic organisms and fish feed

1999 ◽  
Vol 724 (2) ◽  
pp. 249-255 ◽  
Author(s):  
Ji Zeng Huo ◽  
Hans J. Nelis ◽  
Patrick Lavens ◽  
Patrick Sorgeloos ◽  
André P. De Leenheer
Keyword(s):  
Simultaneous Determination ◽  
Aquatic Organisms ◽  
Tocopheryl Acetate ◽  
Fish Feed

scholarly journals Determination of Vitamin E in Aquatic Organisms by High-Performance Liquid Chromatography with Fluorescence Detection

1996 ◽  
Vol 242 (1) ◽  
pp. 123-128 ◽  
Author(s):  
Ji-Zeng Huo ◽  
Hans J. Nelis ◽  
Patrick Lavens ◽  
Patrick Sorgeloos ◽  
André P.De Leenheer
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Vitamin E ◽  
Fluorescence Detection ◽  
High Performance ◽  
Aquatic Organisms

scholarly journals Research trends on emerging environment pollutants – a review

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
I. Rykowska ◽  
W. Wasiak
Keyword(s):  
Natural Environment ◽  
Emerging Contaminants ◽  
Aquatic Organisms ◽  
Endocrine Disrupting Compounds ◽  
Research Trends ◽  
Multicomponent Mixtures ◽  
Groundwater Contaminants ◽  
Hormonal Imbalance ◽  
Endocrine Disrupting

AbstractConcern for the natural environment increasingly devotes more attention to growing potential hazards resulting from the release of various substances. Currently, one of the main problems associated with environmental pollution is the derivation of organic compounds from wastewater. Substances derived from sewage leaks into the environment in the form of a multicomponent mixtures often enhances the toxic effects caused by these compounds. While analyzing the reports in the literature of the last two decades it can be seen that substantial efforts are devoted to the determination of selected trace contaminants present in wastewater. Among the most marked there are endocrine disrupting compounds, residues of pharmaceuticals and personal care products, plastics and sunscreens. Recently, a new group of compounds joined the aforementioned contaminants, namely drugs, whose legality and availability is increasing every year. Exposure to these type of compounds, named in the literature as emerging contaminants (ECs), involves, among others, such effects as hormonal imbalance, reduction of the survivability of aquatic organisms and reproductive problems. This paper provides a review of the types of emerging organic groundwater contaminants (EGCs) which are beginning to be found in the natural environment in many countries all around the world.

Über tagesperiodische Schwankungen der Sauerstoffbilanz kernhaltiger und kernloser Acetabularia mediterranea

1964 ◽  
Vol 19 (6) ◽  
pp. 499-505 ◽  
Author(s):  
E. Schweiger ◽  
H. G. Wallraff ◽  
H. G. Schweiger
Keyword(s):  
Diurnal Rhythm ◽  
Aquatic Organisms ◽  
Electrochemical Determination ◽  
Continuous Illumination ◽  
Oxygen Balance ◽  
Acetabularia Mediterranea

A method is described for the electrochemical determination of the oxygen balance of aquatic organisms. With this method it was possible to demonstrate that individual Acetabularia cells kept under continuous illumination showed a diurnal rhythm of photosynthesis for a period of several weeks. The rhythm could be observed even 40 days after removal of the nucleus. The role of the nucleus in this periodicity is discussed.

scholarly journals Occurrence and risk assessment of parabens and triclosan in surface waters of southern Brazil: a problem of emerging compounds in an emerging country

RBRH ◽  
2016 ◽  
Vol 21 (3) ◽  
pp. 603-617 ◽  
Author(s):  
Mauricius Marques dos Santos ◽  
Franciane de Almeida Brehm ◽  
Tais Cristina Filippe ◽  
Heloise Garcia Knapik ◽  
Júlio César Rodrigues de Azevedo
Keyword(s):  
Risk Assessment ◽  
Solid Phase ◽  
Aquatic Organisms ◽  
Human Action ◽  
Pharmaceutical Products ◽  
Metropolitan Region ◽  
Southern Brazil ◽  
Emerging Compounds ◽  
High Concentrations

ABSTRACT Parabens and triclosan compounds are widely used in pharmaceutical products, personal care, food and various products of daily use. After use, the final destinations of these contaminants are domestic effluents and the environment if not collected or treated. The objective of this study was to evaluate the presence of parabens and triclosan in environments in a subtropical region, more specifically in the metropolitan region of Curitiba (southern Brazil) and possible effects of these compounds in aquatic environments through risk assessment through the use of risk quotient (RQ). Samples were collected in 20 points for 4 campaigns. For the extraction of the compounds we used the extraction technique of solid phase extraction (SPE). The determination of the compounds was using gas chromatography coupled to mass spectrometry (GC-MS). It was observed high concentrations of parabens, especially MeP (up to 2875 ng L–1). Despite high concentrations of parabens, their presence has a low risk to aquatic organisms. Triclosan has been observed at higher concentrations (415 ng L–1), suggesting once again that these environments are impacted by human action. The RQ assessed that triclosan has a high risk for certain groups of organisms.

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