scholarly journals Behavioral responses of freshwater bivalve mussel Unio pictorum to a number of common abiotic chemical contaminants

2020 ◽  
pp. 87-96
Author(s):  
P.V. Gaisky ◽  
◽  
O.A. Stepanova ◽  
Keyword(s):  
Behavioral Responses ◽  
Freshwater Bivalve ◽  
Chemical Contaminants ◽  
Unio Pictorum

scholarly journals Superoxide dismutase and catalase activities in the digestive gland and gills of the freshwater bivalve Unio pictorum from the Sava river

2011 ◽  
Vol 63 (1) ◽  
pp. 185-192 ◽  
Author(s):  
Slavica Borkovic-Mitic ◽  
Tijana Kovacevic ◽  
Branka Perendija ◽  
Svetlana Despotovic ◽  
Jelena Gavric ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Digestive Gland ◽  
Antioxidant Defense ◽  
Freshwater Mussel ◽  
Freshwater Bivalve ◽  
Antioxidant Defense Enzymes ◽  
Potential Use ◽  
Unio Pictorum ◽  
The Sava River ◽  
Biomarkers Of Oxidative Stress

We investigated the potential use of the antioxidant defense enzymes in freshwater mussel (Unio pictorum) as biomarkers of oxidative stress. The enzymatic activities of superoxide dismutase (SOD, EC 1.15.1.1) and catalase (CAT, EC 1.11.1.6), total protein concentration in addition to protein and SOD electrophoretic profiles were examined in the digestive gland and gills of the freshwater bivalve Unio pictorum at two localities on the River Sava. The differences between SOD and CAT activities in examined tissues of freshwater bivalve Unio pictorum reflect dissimilar metabolic and antioxidative activities and this can be the result of both tissue or locality specificities and diverse ecophysiological influences on the organism.

Lysosomal, genetic and chromosomal damage in haemocytes of the freshwater bivalve (Unio pictorum) exposed to polluted sediments from the River Cecina (Italy)

2017 ◽  
Vol 33 (6) ◽  
pp. 516-527 ◽  
Author(s):  
Patrizia Guidi ◽  
Margherita Bernardeschi ◽  
Vittoria Scarcelli ◽  
Emanuela Cantafora ◽  
Maura Benedetti ◽  
...  
Keyword(s):  
Chromosomal Damage ◽  
Freshwater Bivalve ◽  
Polluted Sediments ◽  
Unio Pictorum

Nacre Evolution : A Proteomic Approach

2009 ◽  
Vol 1187 ◽  
Author(s):  
Benjamin Marie ◽  
Nathalie Le Roy ◽  
Arul Marie ◽  
Lionel Dubost ◽  
Christian Milet ◽  
...  
Keyword(s):  
Lower Cambrian ◽  
Matrix Proteins ◽  
Freshwater Bivalve ◽  
Haliotis Asinina ◽  
Proteomic Approach ◽  
Shell Proteins ◽  
Unio Pictorum

AbstractFrom an evolutionary viewpoint, the molluscan nacre constitutes a fascinating object. This microstructure appeared early, in the Lower Cambrian period, about 530 million years ago, and since then, has been kept unchanged until today. Nacre is restricted to the conchiferan mollusks, where it occurs in t least three main classes, bivalves, gastropods and cephalopods. The aim of the present study is to investigate whether all nacres are built from the same “macromolecular tools”, proteins of the nacre matrix. To this end, we studied three new nacre models, the freshwater bivalve Unio pictorum, the cephalopod Nautilus macromphalus, and the gastropod Haliotis asinina, to which we applied a combined biochemical and proteomic characterization of their respective nacre matrices. The results of our approach, that can be defined as “shellomics” (proteomics applied to shell proteins) shed a new light on the macroevolution of nacre matrix proteins and on the in vitro design of nacre-like biomaterials.

Behavioral responses of the Strawberry Poison Frog (Oophaga pumilio) to herbicide olfactory cues: possible implications for habitat selection and movement in altered landscapes

2014 ◽  
Vol 92 (11) ◽  
pp. 979-984
Author(s):  
N.F. Farabaugh ◽  
A.J. Nowakowski
Keyword(s):  
Habitat Selection ◽  
Behavioral Responses ◽  
Olfactory Cues ◽  
Chemical Contaminants ◽  
Poison Frog ◽  
Oophaga Pumilio ◽  
Cardinal Direction ◽  
Males And Females ◽  
Treatment Analysis

Recent research has focused on the importance of behavior in mediating the effects of landscape change on amphibian populations and communities. Factors such as chemical contaminants may affect habitat selection and movement of amphibians in human-altered habitats and contribute to landscape-level patterns of distribution and abundance. The objective of this study was to determine if the Strawberry Poison Frog (Oophaga pumilio (Schmidt, 1857)) can use olfactory cues to detect and avoid the glyphosate-based herbicide Roundup™. Fifty frogs were captured in the field in Costa Rica and tested in experimental arenas where they were given a choice between a control and an herbicide treatment. Analysis of time spent in treatment areas revealed a significant interaction between sex and treatment. Analyses of choice at the start and end of the trials indicated that sex and cardinal direction were important factors influencing orientation behavior. These results suggest that males and females differed in their behavioral responses, and that male O. pumilio may use olfactory cues to detect and avoid areas treated with glyphosate-based herbicide. However, the sampled population was male-biased, which resulted in a lower sample size and lower power to detect an effect for females. Further work is needed to better understand amphibian behavioral responses to herbicides, as well as the role of sex and individual variation in modifying these responses.

Antioxidant, genotoxic and lysosomal biomarkers in the freshwater bivalve (Unio pictorum) transplanted in a metal polluted river basin

2010 ◽  
Vol 100 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Patrizia Guidi ◽  
Giada Frenzilli ◽  
Maura Benedetti ◽  
Margherita Bernardeschi ◽  
Alessandra Falleni ◽  
...  
Keyword(s):  
River Basin ◽  
Freshwater Bivalve ◽  
Polluted River ◽  
Unio Pictorum

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

A Clinical Study of Twenty-seven Children Exhibiting Functional Hearing Loss

1981 ◽  
Vol 12 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Donald L. McCanna ◽  
Giacinto DeLapa
Keyword(s):  
Hearing Loss ◽  
Clinical Study ◽  
Early Identification ◽  
Behavioral Responses ◽  
Upper Elementary ◽  
Elementary Grades ◽  
Ability Level ◽  
Hearing Problem

This report reviews 27 cases of children exhibiting functional hearing loss. The study reveals that most students were in the upper elementary grades and were predominantly females. These subjects were functioning below their ability level in school and were usually in conflict with school, home, or peers. Tests used were selected on the basis of their helping to provide early identification. The subjects' oral and behavioral responses are presented, as well as ways of resolving the hearing problem. Some helpful counseling techniques are also presented.

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