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Search Publications by: Jennifer Lynch (Fed)

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Displaying 1 - 25 of 87

Separation of microplastics from deep-sea sediment using an affordable, simple to use, and easily accessible density separation device

August 14, 2024
Author(s)
Katherine Shaw, Rachel Sandquist, Cameron Fairclough, Jesse Black, Alex Fitzgerald, Scott Gallager, Jennifer Lynch
Microplastics accumulate in the environment but methods to extract particles from sediment for quantification and identification often lack accuracy and reproducibility. Existing methods vary greatly and many do not achieve adequate microplastic separation

Simulating drifting fish aggregating device trajectories to identify potential interactions with endangered sea turtles

May 20, 2024
Author(s)
Lauriane Escalle, Joe Scutt Phillips, Jon Lopez, Jennifer Lynch, Hilario Murua, Sarah-Jeanne Royer, Yonat Swimmer, J Murua, Alex Sen Gupta, Victor Restrepo, Gala Moreno
Purse-seine fishers using drifting fish aggregating devices (dFADs), mainly built with bamboo, plastic buoys, and plastic netting, to aggregate and catch tropical tuna, deploy 46,000–65,000 dFADs per year in the Pacific Ocean. Some of the major concerns

Differential scanning calorimetry (DSC): An important tool for polymer identification and characterization of plastic marine debris

February 19, 2024
Author(s)
Jennifer Lynch, Raquel Corniuk, Kayla C. Brignac, Melissa Jung, Joelle Marchiani, Wanda Weatherford
Differential scanning calorimetry (DSC), a routine thermoanalytical method in material science, is gaining utility in plastic pollution research to improve polymer identification. We optimized a DSC method, experimentally testing pan types, temperature

Microplastics absent from reef fish in the Marshall Islands: Multistage screening methods reduced false positives

November 29, 2023
Author(s)
Katherine Shaw, Jonathan Whitney, Eileen Nalley, Madeline Schmidbauer, Megan Donahue, Jesse Black, Raquel Corniuk, Kellie Teague, Catherine Pirkle, Rachel Dacks, Max Sudnovsky, Jennifer Lynch
Island communities, like the Republic of the Marshall Islands (RMI), depend on marine resources for food and economics, so plastic ingestion by those resources is a concern. The gastrointestinal tracts of nine species of reef fish across five trophic

Large floating abandoned, lost or discarded fishing gear (ALDFG) is frequent marine pollution in the Hawaiian Islands and Palmyra Atoll

September 29, 2023
Author(s)
Sarah-Jeanne Royer, Raquel Corniuk, Andrew McWhirter, Harry Lynch, Kydd Pollock, Kevin O'Brien, Lauriane Escalle, Jon Lopez, Katherine Stevens, Gala Moreno, Jennifer Lynch
Abandoned, lost, or discarded fishing gear (ALDFG) is a major source of marine debris with significant ecological and economic consequences. We documented the frequency, types, sizes, and impacts of ALDFG recovered from Hawaiʻi and Palmyra Atoll in the

Polymer Identification of Floating Derelict Fishing Gear from O'ahu, Hawai`i

September 28, 2023
Author(s)
Raquel Corniuk, Katherine Shaw, Andrew McWhirter, Harry Lynch, Sarah-Jeanne Royer, Jennifer Lynch
Discarded fishing gear (DFG) comprises most of the plastic in the North Pacific Ocean and causes environmental and economic losses. Building evidence on the material construction of fishing gear types is critical to develop solutions to reduce DFG amounts

Using Plasma Vitellogenin in Loggerhead Sea Turtles to Assess Reproductive Maturation and Estrogen-Like Contaminant Exposure

March 21, 2023
Author(s)
Raquel Corniuk, Jennifer Lynch, Michael Arendt, Joanne Braun-McNeill, David Owens, Roldan Valverde, John Kucklick, Patricia McClellan-Green
Vitellogenin (VTG), an egg yolk precursor, is abnormally produced by male and juvenile oviparous species after exposure to estrogens. Plasma VTG in loggerhead sea turtles (Caretta caretta) helped us understand their reproductive maturation and investigate

Green sea turtles (Chelonia mydas) accumulate heavy metals near a former skeet shooting range in Kailua, O'ahu, Hawai'i

March 3, 2023
Author(s)
Katherine Shaw, George Balazs, T. Todd Jones, Harry Lynch, Jing Liu, George Cobb, David Klein, Jennifer Lynch
This study determined if green sea turtles (Chelonia mydas) in Kailua Bay, Oahu, in the Hawaiian Islands have elevated blood and scute Pb, As, and Sb concentrations resulting from lead deposition at a historic skeet shooting range. Blood and scute samples

Towards a North Pacific Ocean long-term monitoring program for plastic pollution: A review and recommendations for plastic ingestion bioindicators

August 6, 2022
Author(s)
Matthew Savoca, Susanne Kuhn, Chengjun Sun, Stephanie Avery-Gomm, Anela Choy, Sarah Dudas, Sanghee Hong, David Hyrenbach, Tsung-Hsien Li, Connie Ka-yan Ng, Jennifer Provencher, Jennifer Lynch
Marine debris is now a ubiquitous component of the Anthropocene global ocean. Plastic ingestion by marine wildlife was first reported in the 1960s and since that time, roughly one thousand marine species have been reported to consume this debris. This

Time-gated Raman spectroscopy of recovered plastics

July 1, 2022
Author(s)
Anthony Kotula, Sara Orski, Kayla Brignac, Jennifer Lynch, Bryan Heilala
Raman spectroscopy is a powerful non-destructive technique for the identification and characterization of plastics. The technique often has limited use due to fluorescence emission, which often occurs in polymer samples containing colorants or that have

Characterization of Halogenated Organic Compounds in Pelagic Sharks and Sea Turtles Using a Nontargeted Approach

December 1, 2021
Author(s)
Aikebaier Renaguli, Sujan Fernando, Thomas Holsen, Philip Hopke, Douglas Adams, George Balazs, T Jones, Thierry Work, Jennifer Lynch, Bernard Crimmins
Halogenated organic compounds (HOCs) in marine species collected from the Atlantic Ocean [3 shortfin mako (Isurus oxyrinchus) and 1 porbeagle (Lamna nasus)], and 12 sea turtles collected from the Pacific Ocean [3 loggerhead (Caretta caretta), 3 green

Sea turtles across the North Pacific are exposed to perfluoroalkyl substances

June 15, 2021
Author(s)
Cathryn Wood, George H. Balazs, Marc Rice, Thierry M. Work, T. T. Jones, Eleanor Sterling, Tammy Summers, John Brooker, Lauren Kurpita, Cheryl King, Jennifer Lynch
Perfluorinated alkyl substances (PFASs) are global, persistent, and toxic contaminants. We assessed PFAS concentrations in green (Chelonia mydas) and hawksbill (Eretmochelys imbricata) turtles from the North Pacific. Fifteen compounds were quantified via

Microplastic Spectral Classification Needs an Open Source Community: Open Specy to the Rescue!

May 19, 2021
Author(s)
Win Cowger, Gray Andrew, Chelsea Rochman, Sebastian Primpke, Jennifer Lynch, Hannah Hapich, Hannah De Frond, Keenan Munno
Microplastic pollution research has suffered from inadequate data and tools for spectral (Raman and infrared) classification. Spectral matching tools often are not accurate for microplastics identification and are cost-prohibitive. Lack of accuracy stems

Species and population specific gene expression in blood transcriptomes of marine turtles

May 13, 2021
Author(s)
Shreya M. Banerjee, Jamie A. Stoll, Camryn D. Allen, Jennifer Lynch, Heather Harris, Lauren Kenyon, Eleanor Sterling, Eugenia Naro-Maciel, Kate McFadden, Margaret Lamont, James Benge, Jeffrey A. Seminoff, Scott Benson, Rebecca L. Lewison, Tomoharu Eguchi, T. T. Jones, Peter Dutton, George H. Balazs, Lisa M. Komoroske
Background Transcriptomic data has demonstrated utility to advance the study of physiological diversity and organisms' responses to environmental stressors. However, a lack of genomic resources and challenges associated with collecting high-quality RNA can

TRACE ELEMENT CONCENTRATIONS IN BLOOD AND SCUTE TISSUES FROM WILD AND CAPTIVE HAWAIIAN GREEN SEA TURTLES (CHELONIA MYDAS)

October 16, 2020
Author(s)
Katherine Shaw, Jennifer Lynch, George H. Balazs, T. T. Jones, Jeff Pawloski, Marc Rice, Amanda French, Jing Liu, David Klein
Hawaiian green sea turtles (Chelonia mydas) are exposed to trace elements through water, sediment, and food. High concentrations of elements have been shown to decrease immune function, impair growth, and decrease reproduction in wildlife. This study

Assessment of plastic ingestion by pole-caught pelagic predatory fish around Oahu, Hawaii

October 1, 2020
Author(s)
K D. Hyrenbach, Zora McGinnis, Kathleen Paige, Dan Rapp, F. D. Horgen, Jennifer Lynch
While the occurrence of plastic ingestion in the large-sized dolphinfish and tunas taken by the Hawaii longline fishery is very low ( 5 %), the ingestion rates for the smaller fish caught with pole-and-line have not been documented. This study examined

Prey-size plastics are invading larval fish nurseries

November 11, 2019
Author(s)
Jamison Gove, Jonathan Whitney, Margaret McManus, Joey Lecky, Felipe Carvalho, Jennifer Lynch, Jiwei Li, Philipp Neubauer, Jana Phipps, Donald Kobayashi, Karla Balagso, Emily Contreras, Mark Manuel, Mark Merrifield, Jeffrey Polovina, Gregory Asner, Jeffrey Maynard, Gareth Williams
Life for many of the world's marine fish begins at the ocean surface. Ocean conditions dictate food availability and govern survivorship, yet little is known about the habitat preferences of larval fish during this highly vulnerable life-history stage

Plastic Marine Debris Polymers in the Hawaiian Islands: Beach, Sea Surface, and Seafloor

October 2, 2019
Author(s)
Kayla C. Brignac, Melissa R. Jung, Cheryl King, Sarah-Jeanne Royer, Lauren Blickley, Megan Lamson, James Potemra, Jennifer Lynch
Identifying the polymer type of plastic marine debris is crucial for understanding sources, fate, transport, and effects of this emerging global contaminant in the environment. This is the first study to assess the polymeric differences of plastic marine