[MARMAM] New Paper: FTIR analysis identifies microplastics in stranded common dolphins from New Zealand waters

Karen Stockin K.A.Stockin at massey.ac.nz
Fri Nov 12 13:10:11 PST 2021


Dear Colleagues,

On behalf of the team, I am pleased to share our recent publication in Marine Pollution Bulletin - Fourier transform infrared (FTIR) analysis identifies microplastics in stranded common dolphins (Delphinus delphis) from New Zealand waters.

The paper is open-access and available for free download here: https://www.sciencedirect.com/science/article/pii/S0025326X21011188?via%3Dihub

Abstract
Here we provide a first assessment of microplastics (MPs) in stomach contents of 15 common dolphins (Delphinus delphis) from both single and mass stranding events along the New Zealand coast between 2019 and 2020. MPs were observed in all examined individuals, with an average of 7.8 pieces per stomach. Most MPs were fragments (77%, n = 90) as opposed to fibres (23%, n = 27), with translucent/clear (46%) the most prevalent colour. Fourier transform infrared (FTIR) spectroscopy revealed polyethylene terephthalate (65%) as the most predominant polymer in fibres, whereas polypropylene (31%) and acrylonitrile butadiene styrene (20%) were more frequently recorded as fragments. Mean fragment and fibre size was 584 μm and 1567 μm, respectively. No correlation between total number of MPs and biological parameters (total body length, age, sexual maturity, axillary girth, or blubber thickness) was observed, with similar levels of MPs observed between each of the mass stranding events. Considering MPs are being increasingly linked to a wide range of deleterious effects across taxa, these findings in a typically pelagic marine sentinel species warrants further investigation.

Additional related papers can also be freely downloaded from here<https://www.cetaceanecology.org/journal-articles>

Best wishes, Karen

Karen A Stockin, PhD
Professor – Marine Biology
Rutherford Discovery Fellow – Royal Society Te Aparangi

Cetacean Ecology Research Group | School of Natural and Computational Sciences | Massey University
Private Bag 102 904, North Shore, Auckland 0745, New Zealand
Physical Address: Building 5, Gate 4, The Station Crescent, Albany, Auckland, New Zealand

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