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Microplastic intake, its biotic drivers, and hydrophobic organic contaminant levels in the Baltic herring

Ogonowski, Martin and Wenman, Viktoria and Barth, Andreas and Hamacher-Barth, Evelyne and Danielsson, Sara and Gorokhova, Elena (2019). Microplastic intake, its biotic drivers, and hydrophobic organic contaminant levels in the Baltic herring. Frontiers in Environmental Science. 7 , 1-11
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Abstract

It is commonly accepted that microplastic (MP) ingestion can lead to lower food intake and bioaccumulation of hydrophobic organic contaminants (HOCs) in aquatic organisms. However, causal links between MP and contaminant levels in biota are poorly understood and in situ data are very limited. Here, we investigated whether HOC concentrations in herring muscle tissue (Clupea harengus membras) are related to MP ingestion using fish caught along the West coast of the Baltic Sea. The MP occurrence exhibited a large geographic variability, with MP found in 22.3% of the fish examined, and the population average being 0.9 MP ind−1. However, when only individuals containing MP were considered, the average MP burden was 3.9 MP ind−1. We also found that MP burden decreased with reproductive stage of the fish but increased with its body size. To predict MP abundance in fish guts, we constructed a mass-balance model using literature data on MP in the water column and physiological rates on ingestion and gut evacuation for clupeids of a similar size. The model output was in agreement with the observed values, thus supporting the validity of the results. Contaminant concentrations in the muscle tissue varied substantially across the study area but were unrelated to the MP levels in fish, suggesting a lack of direct links between the levels of HOCs and MP ingestion. Thus, despite their ubiquity, MP are unlikely to have a measurable impact on food intake or the total body burden of hydrophobic contaminants in Baltic herring.

Authors/Creators:Ogonowski, Martin and Wenman, Viktoria and Barth, Andreas and Hamacher-Barth, Evelyne and Danielsson, Sara and Gorokhova, Elena
Title:Microplastic intake, its biotic drivers, and hydrophobic organic contaminant levels in the Baltic herring
Year of publishing :2019
Volume:7
Page range:1-11
Number of Pages:11
Publisher:Frontiers
ISSN:2296-665X
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
(A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Analytical Chemistry
Keywords:microplastic, Baltic sea, herring, hydrophobic organic contaminants, marine monitoring
URN:NBN:urn:nbn:se:slu:epsilon-p-101520
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-101520
Additional ID:
Type of IDID
DOI10.3389/fenvs.2019.00134
ID Code:16321
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:01 Oct 2019 11:43
Metadata Last Modified:16 Aug 2020 18:12

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