Opportunistic detection of anthropogenic micro debris in harbor seal (Phoca vitulina vitulina) and gray seal (Halichoerus grypus atlantica) fecal samples from haul-outs in southeastern Massachusetts, USA

Hudak, Christine A.; Sette, Lisa

doi:10.1016/j.marpolbul.2019.06.020

Cited by 32 publications

(19 citation statements)

References 50 publications

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“…While very small microplastics <500µm may still be under reported due to the limited detectability of these small particles and the presence of pores (20µm) within the lter papers used 17 , the analysis of all material collected gives con dence that the true number of particles present was recorded. Therefore, it is di cult to draw comparisons between the microplastic abundance observed here and in previous studies 22,37,39 , since these studies potentially under report the presence of small ( <500µm) particles. This emphasises the need for future studies to employ methods which can detect and report all grades of microplastic extracted, such as that utilised here and by Nelms et al 12,17,21 , to facilitate increased comparability between datasets.…”

Section: Discussionmentioning

confidence: 68%

“…Firstly, absence of an enzymatic digestion technique in the method adopted by Hudak and Sette 39 , but employed by Nelms et al 12 and in our study, may have caused biological material to obscure microplastics during identi cation. Secondly, particles <500µm were excluded in the work of Hudak and Sette 39 . This size category constituted a great proportion (37/71) of all microplastics identi ed in our study, and the entirety of those identi ed by Nelms et al 12 .…”

Section: Discussionmentioning

confidence: 99%

“…This size category constituted a great proportion (37/71) of all microplastics identi ed in our study, and the entirety of those identi ed by Nelms et al 12 . The exclusion of certain sized particles -often through disregarding the uid collected after sieving in any analyses, which may contain small microparticles -is a procedural bias evident within other microplastic investigations on pinniped species 22,37,39 . For the present study, all material (including all uid) was collected after sieving and analysed for microplastics.…”

Section: Discussionmentioning

confidence: 99%

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Investigating Microplastic Presence Amongst Grey Seals (Halichoerus Grypus) of the North Sea

Desclos-Dukes

Butterworth²,

Cogan

2021

Preprint

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Plastic pollution is of increasing concern to marine ecosystems worldwide. Specifically, microplastics (<5mm) may interact with a variety of biota with potential to cause harm to organism health. Studies concerning microplastics are increasing, yet their occurrence within live marine mammals remains largely unexplored. Here, faecal samples collected from a haul-out site in the North Sea, were used to investigate microplastic pollution within grey seals (Halichoerus grypus). 71 microplastic particles, consisting of both fibres and fragments in a variety of colours and sizes, were identified across 66 scat subsamples analysed. This indicates that marine mammals are ingesting microplastics and that faecal material can be used to indirectly and humanely record microplastic uptake data in pinnipeds. Since the current paper is the first to document microplastic exposure amongst wild, living and free-ranging grey seals in the North Sea, further research is needed to begin to understand the biological significance of these findings.

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Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Investigating Microplastic Presence Amongst Grey Seals (Halichoerus Grypus) of the North Sea

Desclos-Dukes

Butterworth²,

Cogan

2021

Preprint

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“…Nelms et al () found a mean ingestion rate of 5.5 particles per individual, and a majority of fibers compared to fragments. Hudak and Sette (2019) processed fecal samples collected in the northwestern Atlantic from harbor ( Phoca vitulina vitulina ) and gray ( Halichoerus grypus atlantica ) seals. Microscopic debris (>500 μm) was detected in 6% of harbor seal and 1% of gray seal samples and included cellophane, synthetic resin, and rubber.…”

Section: Effects Of Microplastic Debrismentioning

confidence: 99%

Effects of pollution on marine organisms

Mearns

Morrison

Arthur³

et al. 2020

Water Environment Research

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This review covers selected 2019 articles on the biological effects of pollutants, including human physical disturbances, on marine and estuarine plants, animals, ecosystems, and habitats. The review, based largely on journal articles, covers field, and laboratory measurement activities (bioaccumulation of contaminants, field assessment surveys, toxicity testing, and biomarkers) as well as pollution issues of current interest including endocrine disrupters, emerging contaminants, wastewater discharges, marine debris, dredging, and disposal. Special emphasis is placed on effects of oil spills and marine debris due largely to the 2010 Deepwater Horizon oil blowout in the Gulf of Mexico and proliferation of data on the assimilation and effects of marine debris microparticulates. Several topical areas reviewed in the past (e.g., mass mortalities ocean acidification) were dropped this year. The focus of this review is on effects, not on pollutant sources, chemistry, fate, or transport. There is considerable overlap across subject areas (e.g., some bioaccumulation data may be appeared in other topical categories such as effects of wastewater discharges, or biomarker studies appearing in oil toxicity literature). Therefore, we strongly urge readers to use keyword searching of the text and references to locate related but distributed information. Although nearly 400 papers are cited, these now represent a fraction of the literature on these subjects. Use this review mainly as a starting point. And please consult the original papers before citing them.

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“…Om de aanwezigheid op (micro)plastics te monitoren bij levende zeehonden, kan plasticonderzoek ook uitgevoerd worden met uitwerpselen gevonden op hun ligplaatsen(Hudak and Sette 2019). Het voordeel hiervan is dat op deze wijze gezonde zeehonden onderzocht worden.…”

unclassified

MSC ZOE: mogelijke effecten van de verloren containers op zeehonden

Schop¹,

Meijboom²,

Brasseur³

2020

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Opportunistic detection of anthropogenic micro debris in harbor seal (Phoca vitulina vitulina) and gray seal (Halichoerus grypus atlantica) fecal samples from haul-outs in southeastern Massachusetts, USA

Cited by 32 publications

References 50 publications

Investigating Microplastic Presence Amongst Grey Seals (Halichoerus Grypus) of the North Sea

Investigating Microplastic Presence Amongst Grey Seals (Halichoerus Grypus) of the North Sea

Effects of pollution on marine organisms

MSC ZOE: mogelijke effecten van de verloren containers op zeehonden

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