Influence of Lipids on the Bioaccumulation and Trophic Transfer of Organic Contaminants in Aquatic Organisms

1999 ◽  
pp. 203-234 ◽  
Author(s):  
Peter F. Landrum ◽  
Susan W. Fisher
Keyword(s):  
Organic Contaminants ◽  
Aquatic Organisms ◽  
Trophic Transfer

scholarly journals Hydrophobic organic contaminants are not linked to microplastic uptake in Baltic Sea herring

2018 ◽  
Author(s):  
Martin Ogonowski ◽  
Viktoria Wenman ◽  
Andreas Barth ◽  
Evelyne Hamacher-Barth ◽  
Sara Danielsson ◽  
...  
Keyword(s):  
Food Intake ◽  
Baltic Sea ◽  
Muscle Tissue ◽  
Organic Contaminants ◽  
Body Burden ◽  
Aquatic Organisms ◽  
Clupea Harengus ◽  
Balance Model ◽  
Hydrophobic Organic Contaminants ◽  
In Situ Data

It is commonly accepted that microplastic (MP) ingestion can lead to lower food intake and bioaccumulation of hydrophobic organic contaminants (HOCs) in aquatic organisms. However, causal links between MP and contaminant levels in biota are poorly understood and in situ data are very limited. Here, we investigated whether HOC concentrations in herring muscle tissue (Clupea harengus membras) are related to MP ingestion using fish caught along the West coast of the Baltic Sea. The MP occurrence exhibited a large geographic variability, with MP found in 22.3% of the fish examined. The population average was 1.0 MP ind-1; however, when only individuals containing MP were considered, the average MP burden was 4.4 MP ind-1. We also found that MP burden decreased with reproductive stage of the fish but increased with its body size. To predict MP abundance in fish guts, we constructed a mass-balance model using literature data on MP in the water column and physiological rates on ingestion and gut evacuation for clupeids of a similar size. The model output was in agreement with the observed values, thus supporting the validity of the results. Contaminant concentrations in the muscle tissue were unrelated to the MP levels in fish, suggesting a lack of direct links between the levels of HOCs and MP ingestion. Thus, despite their ubiquity, MP are unlikely to have a measurable impact on food intake or the total body burden of hydrophobic contaminants in Baltic herring.

Sample treatment for the determination of emerging organic contaminants in aquatic organisms

2017 ◽  
Vol 97 ◽  
pp. 136-145 ◽  
Author(s):  
Mireia Núñez ◽  
Francesc Borrull ◽  
Eva Pocurull ◽  
Núria Fontanals
Keyword(s):  
Organic Contaminants ◽  
Aquatic Organisms ◽  
Sample Treatment ◽  
Emerging Organic Contaminants

Trophic transfer and dietary exposure risk of mercury in aquatic organisms from urbanized coastal ecosystems

Chemosphere ◽  
2021 ◽  
pp. 130836
Author(s):  
Lulu Mao ◽  
Xitao Liu ◽  
Zongxing Wang ◽  
Baodong Wang ◽  
Chunye Lin ◽  
...  
Keyword(s):  
Dietary Exposure ◽  
Aquatic Organisms ◽  
Trophic Transfer ◽  
Coastal Ecosystems ◽  
Exposure Risk

scholarly journals Occurrence and distribution of Organochlorine Pesticide Residues in Water and Sediments of Earthen Fish Ponds in South Western Kenya

2021 ◽  
Vol 19 (2) ◽  
pp. 47-60
Author(s):  
Joseph Kiyuka Nyaundi ◽  
Albert Getabu ◽  
James Onchieku ◽  
Zachary Kinaro ◽  
Samuel Bassa ◽  
...  
Keyword(s):  
Organochlorine Pesticide ◽  
Organic Contaminants ◽  
Continuous Monitoring ◽  
Aquatic Organisms ◽  
Point Sources ◽  
Fish Ponds ◽  
Western Kenya ◽  
Catchment Areas ◽  
Water Courses ◽  
Upstream Catchment

Persistent organochlorine residues in the environment are a threat to ecological health of aquatic organisms and pose a health risk to both animals and human consumers. Organochlorine pesticides were determined in water and sediments collected during wet and dry season from selected riverine and earthen fish pond sites in high altitude catchment areas within Kuja River (Kenya) between August 2016–May, 2017. Analysis of DDT and metabolites, Hexachlorocyclohexanes (HCHs) isomers and cyclodienes using a gas chromatograph (GC), and electron capture detector (ECD), confirmed using GC - Mass Spectrometry (MS). Mean (± Standard error) results of DDTs, cyclodienes and HCHs in pond waters were:- below detection level (BDL) to 0.27±0.03µg/L, BDL to 0.11±0.00µg/L, and 4.39±1.01µg/L respectively; and BDL to 0.23±0.01µg/L, 1.20±0.005µg/L, and 1.71±0.02µg/L in river water respectively. Sediment mean OCPs contents were significantly (p<0.05) higher for Dieldrin (3.043±0.43µg/kg), Endrin (2.56±0.460µg/kg), Heptachlor (3.61±0.02µg/kg) DDT (2.97±1.32µg/kg), Endosulfan (6.31.27±1.051µg/kg), Methoxychlor (2.15±1.641µg/kg) and Lindane (2.96±1.32µg/kg), respectively. A longitudinal spatial distribution pattern was noted for both water and sediment OCPs contents, demonstrating that cyclodienes are predominant contaminants in point and non-point sources in water courses. The study recommends continuous monitoring of OCPs in upstream catchment areas for informed management and policy decisions on pesticide use. Keywords: Kuja-Migori River; Organic contaminants; Organochlorine Pesticide.

scholarly journals The trophic transfer of Cd and Pb from navicula pelliculosa (Bacillariophyta) to Hyalella azteca (Amphipoda)

2021 ◽  
Author(s):  
Jennifer L Stewart
Keyword(s):  
Protein A ◽  
Aquatic Organisms ◽  
Hyalella Azteca ◽  
Trophic Transfer ◽  
Noticeable Effect ◽  
Water Exposure ◽  
Freshwater Organisms ◽  
Organic Debris ◽  
Significant Difference ◽  
Navicula Pelliculosa

Currently, information identifying the importance of food and water in the trophic transfer of metals for most aquatic organisms is limited, yet such information is essential for modeling metal movement within food webs. Hyalella azteca is a suitable organism to study the trophic transfer of metals since they represent a major, but potentially vulnerable component of the food web of many lakes. Since studies involving the trophic transfer are limited, the objective of this research was to determine the relative importance of food and water sources of Pb and Cd to these animals. Hyalella azteca browses on the film of microscopic plants, animals and organic debris covering leaves, stems and other substrates. Hyalella azteca are epibenthic freshwater organisms that prefer foods high in protein. A major challenge of this study involved determining a substrate in which algae would grow and stay attached so Hyalella azteca could graze. Preliminary studies found that the diatom species, Navicula pelliculosa grew and adhered well to Teflon ® surfaces and that Hyalella azteca grazed the diatoms from the surface of Teflon ® . Thus, Navicula pelliculosa was grown in the presence of Pb and Cd concentrations and then fed to the organisms. No significant difference was found between organisms exposed to Pb and Cd from water and from water and food, indicating that Pb and Cd bioaccumulation from food is negligible when the dissolved inorganic fractions are buffered with ethylenediamine tetra-acetic acid (EDTA). The average log 10 bioconcentration factor (BCF) for Cd was calculated to be 5.25 from water exposure and 5.49 from water and food exposure. The log 10 Hyalella BCF for Pb was calculated as 4.62 from water exposure and 4.59 from water and food exposure. From these results, it can be concluded that a food source containing Pb and Cd concentrations of 15 nM Pb and 0.37 nM Cd, had no noticeable effect on metal burdens to Hyalella azteca. Metal uptake by Hyalella azteca at the levels studied was found to be primarily from the dissolved phase.

Application of stable isotopes to the bioaccumulation and trophic transfer of arsenic in aquatic organisms around a closed realgar mine

2020 ◽  
Vol 726 ◽  
pp. 138550
Author(s):  
Fen Yang ◽  
Zhenzhen Yu ◽  
Shaowen Xie ◽  
Hanxiao Feng ◽  
Chaoyang Wei ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Aquatic Organisms ◽  
Trophic Transfer

scholarly journals Assessing limitation factors and thresholds for macroinvertebrate communities in response to land use gradients

2021 ◽  
Vol 259 ◽  
pp. 01007
Author(s):  
Sen Ding ◽  
Feilong Li ◽  
Jianing Lin ◽  
Yuan Zhang ◽  
Xiaobo Jia
Keyword(s):  
Land Use ◽  
Biodiversity Conservation ◽  
Organic Contaminants ◽  
Environmental Gradients ◽  
Generalized Additive Models ◽  
Aquatic Organisms ◽  
Additive Models ◽  
Limiting Factors ◽  
Macroinvertebrate Communities ◽  
Land Exploitation

Transformations of land use from natural to anthropic type have been recognized as a significant trigger which degenerate the aquatic ecological quality seriously. However, there was still lack of enough evidence which the extent of changes in land use should be set as a biodiversity conservation target to protect aquatic ecosystem. To understand the corresponding variations of aquatic organisms to environmental gradients and set the conservation threshold values for land use, data of physicochemical parameters and macroinvertebrate communities were sampled in the Hun-Tai River Basin during 2009 and 2010. The main objectives of the present study were (i) to explore limiting factors that affect the distribution of macroinvertebrate communities with land use gradients, (ii) to estimate thresholds for the conservation of macroinvertebrate communities derived from generalized additive models (GAMs) and Threshold Indicator Taxa ANalysis (TITAN), respectively. The results indicated that macroinvertebrate communities’ structure and integrity were strongly negative with nutrient, organic contaminants content, %CropArea and %ImperviousArea. Under a precaution perspective and given current levels of land use, this research might provide some useful strategies for appropriate land exploitation management and improving water quality and biodiversity conservation in river ecological restoration.

scholarly journals Wastewater treatment plant effluent as a source of microplastics: review of the fate, chemical interactions and potential risks to aquatic organisms

2016 ◽  
Vol 74 (10) ◽  
pp. 2253-2269 ◽  
Author(s):  
Shima Ziajahromi ◽  
Peta A. Neale ◽  
Frederic D. L. Leusch
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Organic Contaminants ◽  
Aquatic Environment ◽  
Western Europe ◽  
Treatment Plant ◽  
Aquatic Organisms ◽  
Lessons Learned ◽  
Wastewater Effluent ◽  
Wwtp Effluent

Wastewater treatment plant (WWTP) effluent has been identified as a potential source of microplastics in the aquatic environment. Microplastics have recently been detected in wastewater effluent in Western Europe, Russia and the USA. As there are only a handful of studies on microplastics in wastewater, it is difficult to accurately determine the contribution of wastewater effluent as a source of microplastics. However, even the small amounts of microplastics detected in wastewater effluent may be a remarkable source given the large volumes of wastewater treatment effluent discharged to the aquatic environment annually. Further, there is strong evidence that microplastics can interact with wastewater-associated contaminants, which has the potential to transport chemicals to aquatic organisms after exposure to contaminated microplastics. In this review we apply lessons learned from the literature on microplastics in the aquatic environment and knowledge on current wastewater treatment technologies, with the aim of identifying the research gaps in terms of (i) the fate of microplastics in WWTPs, (ii) the potential interaction of wastewater-based microplastics with trace organic contaminants and metals, and (iii) the risk for aquatic organisms.

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