Article
Environmental Sciences
David J. Yurkowski, Elena McCulloch, Wesley R. Ogloff, Kelsey F. Johnson, Remi Amiraux, Niladri Basu, Kyle H. Elliott, Aaron T. Fisk, Steven H. Ferguson, Les N. Harris, Kevin J. Hedges, Kevin Jacobs, Tracey N. Loewen, Cory J. D. Matthews, C. J. Mundy, Andrea Niemi, Bruno Rosenberg, Cortney A. Watt, Melissa A. McKinney
Summary: Combining mercury and stable isotope data sets can help determine whether predator's contaminant variation is influenced by diet, habitat use, or environmental factors. We examined 249 individuals from 15 fish and four marine mammal species in coastal Arctic waters to investigate inter-species variation in total Hg concentrations, trophic magnification slope between 815N and THg, and relationships of THg with 813C and 834S. Our findings highlight the significance of employing a multi-isotopic approach, including 834S, when studying trophic Hg dynamics in coastal marine systems.
MARINE POLLUTION BULLETIN
(2023)
Article
Engineering, Environmental
Jieyi Diao, Zhenwei Chen, Tieyu Wang, Chuanghong Su, Qiongping Sun, Yanjun Guo, Zhao Zheng, Lin Wang, Ping Li, Wenhua Liu, Seongjin Hong, Jong Seong Khim
Summary: The study investigates PFASs in the South China Sea, and suggests that short-chain PFASs have been used as substitutes for long-chain PFASs in recent years. PFOS has biomagnification potential in the marine food web. PFASs consumed through seafood consumption do not pose significant health risks to local residents.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Katharine M. Fremlin, John E. Elliott, Robert J. Letcher, Tom Harner, Frank A. P. C. Gobas
Summary: This study investigated the trophic magnification of perfluoroalkylsubstances (PFAS) in a terrestrial food web by measuring concentrations in biota, air, and soil samples. The results showed that some PFAS exhibited biomagnification while others were diluted in the food web.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Alethea S. Madgett, Kyari Yates, Lynda Webster, Craig McKenzie, Andrew Brownlow, Colin F. Moffat
Summary: This study investigated the variability of concentrations and distributions of PCB and PBDE congeners in 26 species from different locations around Scotland. The study found clear differences in congener distribution between sample categories and species, influenced by physiological processes and eco-biological parameters. Trophic magnification was observed for the ICES-7 PCBs and BDE47 using the traditional method, with CB52 showing the highest degree of magnification. The unbalanced dataset influenced the calculated trophic magnification factor (TMF) and sometimes the overall conclusions of congener biomagnification. The use of a balanced method is recommended for accurate TMF calculations, particularly in regional comparisons with difficult sampling requirements.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Yonghu Liu, Song Cui, Yue Ma, Qian Jiang, Xuewei Zhao, Qian Cheng, Lina Guo, Hongliang Jia, Li Lin
Summary: In this study, trophic transfer of PBDEs and NBFRs was investigated in marine food web in Bohai Sea, China. Significant trophic magnification was observed for certain PBDE congeners, while some NBFRs showed significant trophic dilution. Chemicals with higher K-OW values generally exhibited stronger trophic magnification capacity, but bioavailability could inhibit the trophic magnification ability of superhydrophobic compounds. This study is the first to report on the trophic transfer of NBFRs in marine food web and 9 NBFRs in aquatic food web.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Cheng Dong, Qinghua Zhang, Siyuan Xiong, Ruiqiang Yang, Zhiguo Pei, Yingming Li, Guibin Jiang
Summary: This study analyzed the occurrence and trophic transfer of PCNs in polar ecosystems. It found that PCN concentrations in biota and marine sediments were relatively low and stable in both the Arctic and Antarctic regions. However, there were differences in trophic transfer patterns between the two regions, leading to different environmental risks.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Environmental Sciences
Rune Dietz, Robert J. Letcher, Jon Aars, Magnus Andersen, Andrei Boltunov, Erik W. Born, Tomasz M. Ciesielski, Krishna Das, Sam Dastnai, Andrew E. Derocher, Jean-Pierre Desforges, Igor Eulaers, Steve Ferguson, Ingeborg G. Hallanger, Mads P. Heide-Jorgensen, Lars-Eric Heimburger-Boavida, Paul F. Hoekstra, Bjorn M. Jenssen, Stephen Gustav Kohler, Martin M. Larsen, Ulf Lindstrom, Anna Lippold, Adam Morris, Jacob Nabe-Nielsen, Nynne H. Nielsen, Elizabeth Peacock, Marianna Pinzone, Frank F. Riget, Aqqalu Rosing-Asvid, Heli Routti, Ursula Siebert, Garry Stenson, Gary Stern, Jakob Strand, Jens Sondergaard, Gabriele Treu, Gisli A. Vikingsson, Feiyue Wang, Jeffrey M. Welker, Oystein Wiig, Simon J. Wilson, Christian Sonne
Summary: This study assessed the risk of mercury exposure in Arctic mammal species and found that most populations have low health risks, but certain subpopulations are highly exposed and at risk. However, there are still knowledge gaps in the risk assessment of mercury exposure in Arctic mammals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
G. Boldrocchi, D. Spanu, M. Mazzoni, M. Omar, I Baneschi, C. Boschi, L. Zinzula, R. Bettinetti, D. Monticelli
Summary: The study investigated the presence and organotropism of trace elements in three tissues of 12 elasmobranch species. Results showed similar TE loads in different shark species, but different tissues had varying levels of different trace elements, illustrating the need for caution when selecting tissues for sampling.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Steven Goodbred, Michael R. Rosen, Reynaldo Patino, David Alvarez, Kathy Echols, Kerensa King, John Umek
Summary: The study assessed the distribution of SOCs in the food web of Lake Mead, Nevada/Arizona, USA and found that the introduction of invasive quagga mussels influenced this distribution. It was observed that quagga mussel growth has shifted a considerable portion of the SOC mass from the pelagic to the benthic environments, resulting in increased risk of SOC exposure for benthic species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biodiversity Conservation
K. M. MacKenzie, C. Lydersen, T. Haug, H. Routti, J. Aars, C. M. Andvik, K. Borga, A. T. Fisk, S. Meier, M. Biuw, A. D. Lowther, U. Lindstrom, K. M. Kovacs
Summary: The Arctic is warming rapidly, posing a threat to marine mammals and their ecosystem. The study of stable isotopes and trophic webs reveals clear separation in trophic behavior and carbon sources among different species, indicating significant niche partitioning. This could have implications for the structure and connectivity of the Arctic ecosystem.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Beatriz Rios-Fuster, Carme Alomar, Gema Paniagua Gonzalez, Rosa Maria Garcinuno Martinez, Dulce Lucy Soliz Rojas, Pilar Fernandez Hernando, Salud Deudero
Summary: This study quantified microplastic ingestion and plasticizer levels in bivalves, fish, and holothurians collected from a coastal pristine area in the western Mediterranean Sea, finding that sediment-feeders holothurians had the highest MP ingestion, and there were significant differences in plasticizer levels among different species.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Chang-Gui Pan, Shao-Ke Xiao, Ke-Fu Yu, Qi Wu, Ying-Hui Wang
Summary: The study investigated the occurrence, bioaccumulation, and trophic magnification of legacy and alternative PFAS in subtropical marine food webs in the Beibu Gulf, South China. The results showed that most PFAS exhibited low bioaccumulation levels, with only a few substances showing trophic magnification. Overall, the risk of PFAS exposure through consumption of marine organisms was found to be relatively low.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Ecology
Zhen Wang, Yue Li, Fanlong Kong, Minghui Li, Min Xi, Zhengda Yu
Summary: The study reviewed the bioaccumulation of toxic pollutants in coastal and marine food webs, identifying PBDEs, PCBs, and Hg as the main focus of biomagnification among 184 recorded pollutants. Results indicated varying levels of biomagnification risk for different pollutants, with factors such as pollutant morphology, food web structure, and predator-prey relationships affecting biomagnification effects. Proper selection of key parameters and careful screening of individual organisms are crucial for assessing biomagnification risks accurately.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Casey T. Clark, Lara Horstmann, Nicole Misarti
Summary: This study investigated trace element concentrations in the teeth of Pacific walruses, finding that these concentrations reflect environmental exposure and dietary intake. The research highlights the complex roles of trace elements in animal tissues, with physiology playing a key role in modulating tooth trace element concentrations in walrus teeth.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
