Fecal indicator bacteria and zoonotic pathogens in marine snow and California mussels (Mytilus californianus)

Karen Shapiro, Mary Silver, Barbara A Byrne, Terra Berardi, Beatriz Aguilar, Ann Melli, Woutrina A Smith

Research output: Contribution to journalArticle

Abstract

Pollution of nearshore waters with disease-causing microorganisms impacts ecosystems health through illness and deaths in people and wildlife, as well as negative socioeconomic consequences of impaired marine resources. Insight on pathogen ecology in coastal habitats is crucial for accurately mitigating inputs and impacts of microbial pollution. Three objectives were addressed to (i) compare fecal pollution in proximity to (a) freshwater runoff, and (b) endemic marine wildlife; (ii) evaluate presence and magnitude of fecal microorganisms in marine snow and mussels and (iii) determine if pathogens in mussels and FIB levels in seawater or mussels are correlated. Sampling during the wet season, proximity to freshwater, and FIB levels in mussel homogenates (but not seawater) were associated with pathogen presence in mussels. Pathogens and FIB were enriched in aggregate-rich fractions, further supporting an important role of marine snow in pathogen transmission. The lack of association between FIB in surrounding waters and presence of pathogens in mussels calls into question current regulations for insuring safe seafood to consumers in the United States, and alternative monitoring approaches such as direct testing for select pathogens should be further evaluated.

Original languageEnglish (US)
JournalFEMS microbiology ecology
Volume94
Issue number11
DOIs
StatePublished - Nov 1 2018

Fingerprint

marine snow
Mytilus
Snow
Bivalvia
Zoonoses
pathogen
Bacteria
bacterium
Seawater
Fresh Water
Ecosystem
pollution
Water Pollution
microorganism
Seafood
Infectious Disease Transmission
seawater
Ecology
seafood
ecosystem health

ASJC Scopus subject areas

  • Microbiology
  • Ecology
  • Applied Microbiology and Biotechnology

Cite this

Fecal indicator bacteria and zoonotic pathogens in marine snow and California mussels (Mytilus californianus). / Shapiro, Karen; Silver, Mary; Byrne, Barbara A; Berardi, Terra; Aguilar, Beatriz; Melli, Ann; Smith, Woutrina A.

In: FEMS microbiology ecology, Vol. 94, No. 11, 01.11.2018.

Research output: Contribution to journalArticle

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