scholarly journals Trace Elements In The Detoxifying And Accumulating Body Parts of Mytilus Galloprovincialis Lamark, 1819 (Crimea, Black Sea): Human Health Risks And Effect of The Sampling Site Location

2021 ◽  
Author(s):  
Natalya S. Chelyadina ◽  
Sergey V. Kapranov ◽  
Mark A. Popov ◽  
Lyudmila L. Smirnova ◽  
Nikolay I. Bobko
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Black Sea ◽  
Health Risks ◽  
Soft Tissues ◽  
The Body ◽  
Body Parts ◽  
Environment Pollution ◽  
Human Health Risks ◽  
First Time

Abstract The mussel M. galloprovincialis is one of the most popular species in world’s mariculture and environment pollution bioindicators. Although this mollusk was in a focus of numerous publications, the detoxifying and accumulating role of some of its body parts was insufficiently studied. In the present work, using inductively coupled plasma mass spectrometry, the distribution of Cr, Co, Ni, Cu, Zn, As, Cd, Hg, Pb in soft tissues, byssus, and shell liquor of this bivalve was studied for the first time as a function of sampling location in the Black Sea off southwestern Crimea. Multivariate analysis showed significant differences in the overall distribution of the elements among the body parts and sampling sites under consideration. Human health risks from the consumption of this mollusk were shown to be unlikely. Byssus of M. galloprovincialis was characterized as an ideal indicator of marine environment pollution with Ni, Cu, Pb, Сo, and Cr as it contained the highest contents of these elements among the body parts under study (Ni up to 91%, Cu and Pb up to 79%). For the first time, the concentrations of trace elements were determined in the shell liquor and its role as the trace element excretion system was demonstrated. In the shell liquor, the largest share among the body parts was that of Hg (up to 71%). In soft tissues, Zn, Cd and As were in largest proportions among the body parts (63, 62, and 54%, respectively). The trace element contents in soft tissues of M. galloprovincialis decreased in the following order: Zn > Cu > As > Ni > Pb > Cd > Cr > Co > Hg.

scholarly journals Element Contents in Three Commercially Important Edible Mollusks Harvested off the Southwestern Coast of Crimea (Black Sea) and Assessment of Human Health Risks from Their Consumption

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2313
Author(s):  
Sergey V. Kapranov ◽  
Nadezhda V. Karavantseva ◽  
Nikolay I. Bobko ◽  
Vitaliy I. Ryabushko ◽  
Larisa L. Kapranova
Keyword(s):  
Trace Elements ◽  
Human Health ◽  
Health Risks ◽  
Inductively Coupled Plasma ◽  
Soft Tissues ◽  
Optimal Number ◽  
Inductively Coupled ◽  
Human Health Risks ◽  
Southwestern Crimea ◽  
Element Accumulation

Mollusks are a prospective food for the world’s growing population, but the contents of toxic and essential trace elements in them have not been studied comprehensively. In this work, using inductively coupled plasma mass spectrometry, the contents of 72 elements in soft tissues of the edible mollusks Mytilus galloprovincialis, Rapana venosa, and Crassostrea gigas from the coastal area of the southwestern Crimea were estimated and compared with the maximum permissible levels. Element accumulation similarities were observed in the two bivalve species. Cluster analysis applied to the non-normalized contents allowed finding an optimal number of non-overlapping element clusters: 1 group of macroelements, 1–2 groups of trace elements, and 1–2 groups of ultratrace elements. As an outcome of this analysis, the element accumulation universality index was introduced, which demonstrated the accumulation universality decrease in the order: mussel > sea snail > oyster. An original approach to estimating the mollusk consumption rate was proposed to assess human health risks. Two possible consumption scenarios were identified for Crimean residents. From the expected consumption of all species in both scenarios, there are no health risks, but they are not excluded, within the 95% probability, from high consumption of mussels and sea snails in the pessimistic scenario.

Assessing the potential origins and human health risks of trace elements in groundwater: A case study in the Khoy plain, Iran

2018 ◽  
Vol 41 (2) ◽  
pp. 981-1002 ◽  
Author(s):  
Rahim Barzegar ◽  
Asghar Asghari Moghaddam ◽  
Jan Adamowski ◽  
Amir Hossein Nazemi
Keyword(s):  
Trace Elements ◽  
Human Health ◽  
Health Risks ◽  
Human Health Risks

A new fossil species of Euroleptochromus Jałoszyński (Coleoptera: Staphylinidae: Scydmaeninae) from Eocene Baltic amber

Zootaxa ◽  
2018 ◽  
Vol 4500 (1) ◽  
pp. 146
Author(s):  
ZI-WEI YIN ◽  
CHEN-YANG CAI
Keyword(s):  
New Species ◽  
The Body ◽  
Baltic Amber ◽  
Body Parts ◽  
Fossil Species ◽  
First Time ◽  
A New Species

A new species of the extinct scydmaenine genus Euroleptochromus Jałoszyński (Mastigitae: Leptochromini), E. tuberculatus Yin & Cai, sp. nov., is described from Eocene Baltic amber. It can be separated from the two previously known congeners by the different proportions of the body parts and spination of the profemur, and more importantly, lack of an elongate postgenal process of the head. Our finding demonstrates for the first time a notable variability of the postgenal structures within Euroleptochromus. 

scholarly journals Preface

2006 ◽  
Vol 78 (1) ◽  
pp. viii
Author(s):  
Michael Bickel
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Trace Element Analysis ◽  
The Body ◽  
Research Centre ◽  
Food Contaminants ◽  
Joint Research ◽  
Element Analysis ◽  
Fortified Food ◽  
Animal Metabolism

Trace elements may have different functions in human and animal metabolism: some are toxic (e.g., Hg), others are essential to maintain good health (e.g., Ca), or they can be essential but also toxic, depending on the concentration in the body or in parts thereof (e.g., Se).The importance of various aspects of trace elements in relation to food is steadily increasing in the perception of the consumer and the respective authorities: food contaminants, essential and toxic elements, bioavailability and speciation, nutritional value and fortified food, reliable measurement of contents, etc. In addition, through the many minor and major food-related incidents during recent years the consumer is becoming more concerned about the quality and safety of food. As a result, research and development efforts in this area have also been increased and/or been redirected.TEF-2 was organized in Brussels 7-8 October 2004 by the Institute of Reference Materials and Measurements of the Joint Research Centre of the European Commission, with the support of the Department of Food Analysis, Institute of Agricultural and Food Biotechnology of the University of Warzaw, Poland and the Centre National de la Recherche Scientifique, France. It was carried through under the auspices of IUPAC.The objectives laid down for the symposium were- presenting state-of-the-art analytical methods for the enforcement of legal limits of trace elements in food;- disseminating new ideas and findings within the scientific community;- providing a forum for the exchange of new knowledge and experience between R&D, authorities, and industry; and- bringing together experts in the field with newcomers.TEF-2 was attended by 93 participants from 60 different institutions in 23 countries. It consisted of 26 lectures and 56 posters, structured according to the following four main topics:- trace elements in the food chain (from the environment to shelf product) including the effects of processing and of legislation- trace element bioavailability-toxicological and nutritional aspects- fortified food and supplementation legislation, manufacturing and labeling, standards- advances in trace element analysis in food matricesIt was emphasized that the field of trace elements in food is a lively research area, which generates interest and involvement from researchers, authorities, and industry, of course triggered and nurtured by the equally high interest of the consumer. A selection of the invited contributions to TEF-2 is presented in the subsequent seven papers in this issue.The importance of scientific exchange in this field was, again, recognized during TEF-2. Therefore, the continuation of this series of conferences was discussed, and the venue for the subsequent TEF-3 was decided. It will be organized by R. Lobinski of CNRS in Pau, France, at the beginning of October 2008.Michael BickelConference Editor

Isotopic Signatures and Trace Elements Concentrations in Breast Feathers of Male Caspian Terns and Double Crested Cormorants

2016 ◽  
Author(s):  
Diana Flood
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Feeding Ecology ◽  
Migratory Birds ◽  
The Body ◽  
Contaminant Exposure ◽  
Isotopic Signatures ◽  
Element Concentrations ◽  
Local Exposure ◽  
Caspian Tern

Migratory fish-eating birds occupy the highest trophic positions of aquatic ecosystems and as such serve as invaluable end-point indicators of the presence and bioaccumulation of anthropogenic contaminants. The birds’ main route of contaminant exposure is through food consumption. Migration can complicate this pathway by introducing numerous feeding habitats and thus, potential sources of contamination. Birds possess a number of depuration mechanisms that permit them to reduce their contaminant burden, namely the elimination of metals and mercury (Hg) through their feathers, feces and eggs. Trace element concentrations found in the feathers reflect the contaminants circulating in the body at the time of feather growth, representing local exposure and potential mobilization from internal tissues. Molt schedules and patterns are important considerations when selecting feathers to link feeding ecology with contaminants, as migratory birds’ feathers grow on and represent different sites. Stable nitrogen (δ15N) and carbon (δ13C) and hydrogen isotopes (δD) can reveal feeding ecology and habitat use during their annual cycle. Consequently, anthropogenic and natural sources of metal accumulation can be linked to those ecological variables. This study will examine the assimilation of trace element in male Caspian Tern (Sterna caspia) and Double-crested Cormorant (Phalacrocorax auritus) breast feathers grown on wintering sites and stable isotope signatures will be used to determine origin of contaminants. The aims for this study are to determine (i) whether isotopic signatures of feathers grown on wintering sites can explain variations in feather trace element concentrations, (ii) whether isotopes can determine the source of contamination, and (iii) whether differences in trace elements between individuals are determined by location of wintering ground or species.

scholarly journals PHYSICAL ACTIVITY AND TRACE ELEMENT METABOLISM

2020 ◽  
Vol 21 (2) ◽  
pp. 3-12
Author(s):  
A.A. Skalny ◽  
Keyword(s):  
Physical Activity ◽  
Trace Elements ◽  
Trace Element ◽  
The Body ◽  
Cobalt Chromium ◽  
Essential Trace Elements ◽  
Trace Element Metabolism ◽  
The Impact ◽  
The Relationship ◽  
Insight Into

Currently, there is no doubt about the prevailing influence of the level of physical activity of an individual on the functional state of the body. However, the available literature data on the impact of physical stress on the body's supply of trace elements and their distribution in tissues are largely contradictory. This review of available literature data provides an insight into the relationship between physical activity and microelement homeostasis. The influence of human physical activity on the exchange of toxic (lead, cadmium, Nickel, etc.) and essential trace elements, such as iron, selenium, copper, cobalt, chromium, and zinc is reviewed. Based on the analyzed works, it is concluded that in order to correct the metabolic and microelement status of a person during physical activity, the most reasonable and necessary is the modulation of homeostasis of zinc and selenium.

scholarly journals Using amphipods as bioindicators of metal pollution in the marine environment

2021 ◽  
Author(s):  
◽  
Monique Francis Holmes
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Trace Element ◽  
Marine Environment ◽  
Spatial Scales ◽  
Seawater Temperature ◽  
Negative Relationship ◽  
Dry Weight ◽  
The Body ◽  
Element Concentrations

<p>Heavy metals in the marine environment are a worldwide issue due to their toxicity, non-biodegradability and their ability to accumulate and magnify in organisms. Increased human activity has caused higher inputs of heavy metals, resulting in escalated pressures on delicate coastal ecosystems. A means of assessing the natural environment and how it is changing in response to pollution and other environmental degradation is through the use of biological indicator or biomonitor species. These organisms provide information on the bioavailability of metals present in the environment. In recent years amphipods, a diverse order of small crustaceans, have been increasingly used as bioindicators of disturbed aquatic communities. They are widespread and important components of many food webs, and likely to be frequently exposed to metal contamination through both sediment and seawater. The aim of this research was two-fold: 1) to use amphipods to examine variation across sites and species in concentration of 20+ trace elements and 2) to examine whether the uptake of two metals, copper (Cu) and neodymium (Nd), is mediated by the presence of the other metal or an elevated seawater temperature.  To investigate variation of trace element concentrations across sites, the amphipod Eusiroides monoculoides was collected from three sites in the Wellington region, approximately 5 km apart: Oriental Bay, Evans Bay and Point Halswell. To investigate differences amongst species comparisons were made between Eusiroides monoculoides, Apohyale papanuiensis and Sunamphitoe mixtura when they occurred at the same site. Analysing the trace element concentrations of 36 metals was done using an Inductively Coupled Mass Spectrometer (ICPMS). Overall, although these sites were not greatly distant from each other, there were differences among sites. Evans Bay in general had the highest concentration of trace elements. Further, there were also species-specific differences and S. mixtura was the species with the highest concentration of trace elements. There was also a size effect, where the average dry weight of S. mixtura was negatively related to the concentration of trace elements in the body.  To assess the effects of heavy metals Cu and Nd in both an ambient (14 °C) and elevated (20 °C) temperature, an experiment was run at Victoria University’s Coastal Ecology Lab (VUCEL). Sand hoppers, Bellorchestia quoyana, were collected from a single site in Wellington (Scorching Bay) and assigned to eight treatments: ambient and warm controls in raw seawater and ambient and warm seawater doped with Cu, Nd and Cu and Nd together. Amphipods from treatments with Cu and Nd added had significantly higher concentrations of these metals from the controls, however temperature had no effect, and neither was there an interaction between the metals. Similar to S. mixtura from the field study, dry weight of B. quoyana was negatively related to the concentration of trace elements in the body.  Results from this work demonstrate that when using amphipods as bioindicator species it is important to consider species and size specific effects. This thesis also provides baseline data for 20+ elements from three Wellington sites and demonstrates that there can be unexpected variation across relatively small spatial scales. The laboratory experiment did not yield results that coincided with the consensus of the literature. The experiment showed that at least in this case, temperature did not mediate the uptake of metals and there was a negative relationship between size and metal uptake.</p>

scholarly journals New Information on the Hosts and Distribution of the Marine Fish Leeches Trachelobdella Lubrica and Pontobdella Muricata (Clitellata, Hirudinida)

2010 ◽  
Vol 44 (4) ◽  
pp. e-33-e-36 ◽  
Author(s):  
A. Öktener ◽  
S. Utevsky
Keyword(s):  
Black Sea ◽  
Marine Fish ◽  
Aegean Sea ◽  
The Body ◽  
The Black Sea ◽  
Sea Of Marmara ◽  
New Information ◽  
Thornback Ray ◽  
Labrus Bergylta ◽  
First Time

New Information on the Hosts and Distribution of the Marine Fish LeechesTrachelobdella LubricaandPontobdella Muricata(Clitellata, Hirudinida)Fish leeches collected in the Aegean Sea, the Sea of Marmara and the Black Sea were examined.Trachelobdella lubrica(Grube, 1840) was recorded for the first time from the ballan wrasseLabrus bergylta(Osteichthyes, Labridae), marine breamDiplodus vulgaris(Osteichthyes, Sparidae) and the grouperEpinephelus aeneus(Osteichthyes, Serranidae) from aquiculture. The leeches of this species were found in the Aegean Sea and the Sea of Marmara on the body surface, in the mouth and gill cavities of their hosts. Leeches identified asPontobdella muricata(Linnaeus, 1758) were collected from the thornback rayRaja clavata(Chondrichthyes, Rajidae) in the Black Sea.

Sign in / Sign up

Export Citation Format

Share Document