Article
Environmental Sciences
Dokyun Kim, Ha-Eun Cho, Eun-Ji Won, Hye-Jin Kim, Sunggyu Lee, Kwang-Guk An, Hyo-Bang Moon, Kyung-Hoon Shin
Summary: This study investigates the trophic magnification of synthetic musk compounds and siloxanes in aquatic environments. The results show high concentrations of these compounds in water, sediments, and biota at two sites in Geum River, Republic of Korea. The trophic magnification factor (TMF) analysis based on δN-15 amino acids indicates that most of these compounds have TMF values less than 1, suggesting low accumulation in the food chain. These findings have important implications for assessing and managing the environmental fate and trophic transfer of synthetic musk compounds and siloxanes in freshwater environments.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Fisheries
Joan Gimenez, Marta Albo-Puigserver, Raul Laiz-Carrion, Elena Lloret-Lloret, Jose Maria Bellido, Marta Coll
Summary: The trophic position of European sardine remains similar across different areas of the north-western Mediterranean, despite changes in nitrogen stable isotope values. Using compound-specific stable isotope analysis of amino acids allows for accurate estimation of trophic position, decoupling it from variations in the baseline isotopes. Lack of a proper regional baseline limits the interpretation of nitrogen stable isotope values.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2023)
Article
Plant Sciences
Alexi C. Besser, Emma A. Elliott Smith, Seth D. Newsome
Summary: Analyzing isotopes of amino acids can offer more accurate estimates of energy flow and consumer trophic levels in food webs. However, the specific analysis of amino acids in terrestrial and freshwater producers still requires further study and exploration.
JOURNAL OF ECOLOGY
(2022)
Article
Fisheries
Francesco Mancini, Antonio Oscar Lillo, Roberta Bardelli, Salvatrice Vizzini, Giorgio Mancinelli
Summary: This study investigated the trophic position of the bluefish Pomatomus saltatrix in the Mediterranean basin. The results showed significant differences in trophic position between different locations. A global synthesis of isotopic data indicated that the bluefish's trophic position varies considerably depending on location and baseline species used in the estimations. The findings highlight the high trophic plasticity of the bluefish in recently colonized areas.
MEDITERRANEAN MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Silvia Soncin, Helen M. Talbot, Ricardo Fernandes, Alison Harris, Matthew von Tersch, Harry K. Robson, Jan K. Bakker, Kristine K. Richter, Michelle Alexander, Steven Ellis, Gill Thompson, Valeria Amoretti, Massimo Osanna, Marina Caso, Francesco Sirano, Luciano Fattore, Andre C. Colonese, Peter Garnsey, Luca Bondioli, Oliver E. Craig
Summary: By analyzing the stable isotope values of amino acids from bone collagen of 17 adults from Herculaneum in 79 CE, researchers were able to reconstruct their diets with unprecedented resolution. Significant differences in dietary proportions between males and females suggest differentiated access to food based on gender. The study's results not only allow for comparison between ancient and modern diets, but also open up new possibilities for understanding the health implications of ancient diets.
Article
Limnology
Huaiyu Bai, Yukun Wang, Tingting Zhang, Fangqun Dai, Lingfeng Huang, Yao Sun
Summary: Fish otolith delta N-15 is a valuable source of dietary history information for marine fish, showing a significant correlation with fish white muscle tissue delta N-15. The study found that otolith delta N-15 can be used to characterize the trophic levels of marine fish effectively.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2022)
Article
Ecology
Megan L. Feddern, Eric J. Ward, Amanda J. Warlick, Gordon W. Holtgrieve
Summary: Over the past century, there have been significant changes in the abundance of Alaskan pinnipeds, with variations across species and regions. Recent changes in atmospheric forcing and sea surface temperature have particularly affected the food webs of these animals in the Gulf of Alaska and eastern Bering Sea. By analyzing stable isotope ratios of nitrogen in amino acids, researchers have determined the historic and modern trophic positions of harbor seals and Steller sea lions in the Gulf of Alaska and Bristol Bay. The study found shared trends and species-specific changes in trophic position, suggesting that these pinnipeds have been experiencing unique food web conditions in response to climate-induced ecological change in the region.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Law
Jagmahender Singh Sehrawat, Niraj Rai
Summary: Stable isotope analysis of bones and teeth can estimate the geographic locations and dietary status of individuals in forensic or bio-archaeological contexts. Carbon and nitrogen isotope signatures provide insights into geographic affinity and dietary habits.
MEDICINE SCIENCE AND THE LAW
(2023)
Article
Ornithology
Sam C. Wainright, Lucy S. Vlietstra, Hannah Uher-Koch, James D. Paruk
Summary: This study investigated the habitat use and diet of Common Loons wintering in Barataria Bay, Louisiana, after the Deepwater Horizon oil spill. The results showed that these birds primarily feed in coastal estuarine habitats and mainly consume fish. There were no significant differences in habitat use and diet between subadult and adult birds. The study also found no significant relationship between blood contamination of polycyclic aromatic hydrocarbons (PAH) and stable isotopic composition.
Article
Ecology
Joy L. Shih, Karen E. Selph, Christopher B. Wall, Natalie J. Wallsgrove, Michael P. Lesser, Brian N. Popp
Article
Ecology
Christopher B. Wall, Mario Kaluhiokalani, Brian N. Popp, Megan J. Donahue, Ruth D. Gates
Article
Oceanography
Cecelia C. S. Hannides, Brian N. Popp, Hilary G. Close, Claudia R. Benitez-Nelson, Cassie A. Ka'apu-Lyons, Kristen Gloeckler, Natalie Wallsgrove, Blaire Umhau, Emily Palmer, Jeffrey C. Drazen
PROGRESS IN OCEANOGRAPHY
(2020)
Article
Geosciences, Multidisciplinary
Joseph K. Fackrell, Craig R. Glenn, Donald Thomas, Robert Whittier, Brian N. Popp
HYDROGEOLOGY JOURNAL
(2020)
Article
Oceanography
Andrew K. Tokuda, Jeffrey C. Drazen, Mackenzie E. Gerringer, Brian N. Popp, Eleanna Grammatopoulou, Daniel J. Mayor
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2020)
Article
Chemistry, Multidisciplinary
Laura C. Motta, Joel D. Blum, Brian N. Popp, Jeffrey C. Drazen, Hilary G. Close
Article
Limnology
Sonia Romero-Romero, Cassie A. Ka'apu-Lyons, Blaire P. Umhau, Claudia R. Benitez-Nelson, Cecelia C. S. Hannides, Hilary G. Close, Jeffrey C. Drazen, Brian N. Popp
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2020)
Article
Water Resources
Daniel Dores, Craig R. Glenn, Giuseppe Torri, Robert B. Whittier, Brian N. Popp
HYDROLOGICAL PROCESSES
(2020)
Review
Marine & Freshwater Biology
Garrett E. Lemons, Rebecca L. Lewison, Jeffrey A. Seminoff, Christina M. Coppenrath, Brian N. Popp
Article
Marine & Freshwater Biology
Joy L. Shih, Brian N. Popp
Article
Multidisciplinary Sciences
Joel D. Blum, Jeffrey C. Drazen, Marcus W. Johnson, Brian N. Popp, Laura C. Motta, Alan J. Jamieson
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Limnology
Shannon C. Doherty, Amy E. Maas, Deborah K. Steinberg, Brian N. Popp, Hilary G. Close
Summary: This study evaluates the effectiveness of compound-specific isotope analysis (CSIA-AA) in chemically identifying fecal pellets as a component of particulate organic matter, and proposes using CSIA-AA to calculate the relative trophic position of zooplankton and their fecal pellets to estimate the dietary absorption efficiency of zooplankton.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Limnology
Christopher B. Wall, Natalie J. Wallsgrove, Ruth D. Gates, Brian N. Popp
Summary: Compound-specific isotope analyses (CSIA) and multivariate isotope fingerprinting were used to track biosynthetic sources and reveal trophic interactions in a marine symbiosis study of reef coral (Montipora capitata) and Symbiodiniaceae algae. Results showed overlap in essential amino acid carbon and nitrogen isotopes between hosts and symbionts, with a high correlation between trophic nitrogen isotopes and plankton end-members indicating trophic connections and dietary sources.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Multidisciplinary Sciences
Laura C. Motta, Joel D. Blum, Brian N. Popp, Blaire P. Umhau, Claudia R. Benitez-Nelson, Hilary G. Close, Spencer J. Washburn, Jeffrey C. Drazen
Summary: This study used mercury stable isotope ratios to investigate the cycling of methylmercury in marine particles and biota. The findings suggest that methylmercury is preferentially methylated within small marine particles and that these particles undergo more significant microbial decomposition compared to larger particles. The study also found that large particles in the equatorial ocean resemble fecal pellets and are distinct from small particles. The research provides additional evidence for methylation within marine particles and demonstrates the origin of mercury in different marine organisms.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Michelle Gelippi, Brian Popp, Marco F. W. Gauger, Javier Caraveo-Patino