A Histopathological–Biochemical Health Assessment of Blue Mussel Mytilus edulis

Jones, Connor P.; Gelais, Adam T. St.; Byron, Carrie J.; Costa‐Pierce, Barry A.; Smolowitz, Roxanna; Condon, Michele E.; Parker, Katherine E.; Jane, Aubrey E.; Shippey, Elena G.

doi:10.2983/035.040.0108

Cited by 3 publications

(1 citation statement)

References 72 publications

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“…Necrosis and presence/encapsulation of particles were scored as either present or absent. HI and DGA were quantified for prevalence and then rated semi‐quantitatively for intensity on a 0‐ to 4‐point severity scale following the methods of Apeti et al and Jones et al (see Supporting Information; Apeti et al, 2014; Jones et al, 2021). Prevalence and intensity were also calculated for digenetic trematode parasitization, using formulas from Apeti et al (2014).…”

Section: Methodsmentioning

confidence: 99%

Nylon microfibers develop a distinct plastisphere but have no apparent effects on the gut microbiome or gut tissue status in the blue mussel, Mytilus edulis

Collins,

Griffin,

Holohan

et al. 2023

Environmental Microbiology

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Ingestion of microplastics (MP) by suspension‐feeding bivalves has been well‐documented. However, it is unclear whether exposure to MP could damage the stomach and digestive gland (gut) of these animals, causing ramifications for organism and ecosystem health. Here, we show no apparent effects of nylon microfiber (MF) ingestion on the gut microbiome or digestive tissues of the blue mussel, Mytilus edulis. We exposed mussels to two low concentrations (50 and 100 particles/L) of either nylon MF or Spartina spp. particles (dried, ground marsh grass), ca. 250–500 μm in length, or a no particle control laboratory treatment for 21 days. Results showed that nylon MF, when aged in coarsely filtered seawater, developed a different microbial community than Spartina spp. particles and seawater, however, even after exposure to this different community, mussel gut microbial communities resisted disturbance from nylon MF. The microbial communities of experimental mussels clustered together in ordination and were similar in taxonomic composition and measures of alpha diversity. Additionally, there was no evidence of damage to gut tissues after ingestion of nylon MF or Spartina spp. Post‐ingestive particle processing likely mediated a short gut retention time of these relatively large particles, contributing to the negligible treatment effects.

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Section: Methodsmentioning

confidence: 99%