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Impacts of microplastics on growth and health of hermatypic corals are species-specific.
Environ Pollut. 2019 Nov; 254(Pt B):113074.EP

Abstract

Coral reefs are increasingly affected by the consequences of global change such as increasing temperatures or pollution. Lately, microplastics (i.e., fragments < 5 mm) have been identified as another potential threat. While previous studies have assessed short-term effects caused by high concentrations of microplastics, nothing is known about the long-term effects of microplastics under realistic concentrations. Therefore, a microcosm study was conducted and corals of the genera Acropora, Pocillopora, Porites, and Heliopora were exposed to microplastics in a concentration of 200 particles L-1, relating to predicted pollution levels. Coral growth and health, as well as symbiont properties were studied over a period of six months. The exposure caused species-specific effects on coral growth and photosynthetic performance. Signs of compromised health were observed for Acropora and Pocillopora, those taxa that frequently interact with the particles. The results indicate elevated energy demands in the affected species, likely due to physical contact of the corals to the microplastics. The study shows that microplastic pollution can have negative impacts on hermatypic corals. These effects might amplify corals' susceptibility to other stressors, further contributing to community shifts in coral reef assemblages.

Authors+Show Affiliations

Department of Animal Ecology and Systematics, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32 (IFZ), 35392 Giessen, Germany. Electronic address: jessica.reichert@allzool.bio.uni-giessen.de.Department of Animal Ecology and Systematics, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32 (IFZ), 35392 Giessen, Germany.Australian Research Council Centre of Excellence for Coral Reef Studies and College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia.Department of Animal Ecology and Systematics, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32 (IFZ), 35392 Giessen, Germany.Department of Animal Ecology and Systematics, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32 (IFZ), 35392 Giessen, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31473388

Citation

Reichert, Jessica, et al. "Impacts of Microplastics On Growth and Health of Hermatypic Corals Are Species-specific." Environmental Pollution (Barking, Essex : 1987), vol. 254, no. Pt B, 2019, p. 113074.
Reichert J, Arnold AL, Hoogenboom MO, et al. Impacts of microplastics on growth and health of hermatypic corals are species-specific. Environ Pollut. 2019;254(Pt B):113074.
Reichert, J., Arnold, A. L., Hoogenboom, M. O., Schubert, P., & Wilke, T. (2019). Impacts of microplastics on growth and health of hermatypic corals are species-specific. Environmental Pollution (Barking, Essex : 1987), 254(Pt B), 113074. https://doi.org/10.1016/j.envpol.2019.113074
Reichert J, et al. Impacts of Microplastics On Growth and Health of Hermatypic Corals Are Species-specific. Environ Pollut. 2019;254(Pt B):113074. PubMed PMID: 31473388.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impacts of microplastics on growth and health of hermatypic corals are species-specific. AU - Reichert,Jessica, AU - Arnold,Angelina L, AU - Hoogenboom,Mia O, AU - Schubert,Patrick, AU - Wilke,Thomas, Y1 - 2019/08/19/ PY - 2019/06/23/received PY - 2019/08/16/revised PY - 2019/08/17/accepted PY - 2019/9/2/pubmed PY - 2019/11/26/medline PY - 2019/9/2/entrez KW - Long-term exposure KW - Microcosm KW - Microplastic KW - Photosynthesis KW - Polyethylene KW - Reef-building corals SP - 113074 EP - 113074 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ. Pollut. VL - 254 IS - Pt B N2 - Coral reefs are increasingly affected by the consequences of global change such as increasing temperatures or pollution. Lately, microplastics (i.e., fragments < 5 mm) have been identified as another potential threat. While previous studies have assessed short-term effects caused by high concentrations of microplastics, nothing is known about the long-term effects of microplastics under realistic concentrations. Therefore, a microcosm study was conducted and corals of the genera Acropora, Pocillopora, Porites, and Heliopora were exposed to microplastics in a concentration of 200 particles L-1, relating to predicted pollution levels. Coral growth and health, as well as symbiont properties were studied over a period of six months. The exposure caused species-specific effects on coral growth and photosynthetic performance. Signs of compromised health were observed for Acropora and Pocillopora, those taxa that frequently interact with the particles. The results indicate elevated energy demands in the affected species, likely due to physical contact of the corals to the microplastics. The study shows that microplastic pollution can have negative impacts on hermatypic corals. These effects might amplify corals' susceptibility to other stressors, further contributing to community shifts in coral reef assemblages. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/31473388/Impacts_of_microplastics_on_growth_and_health_of_hermatypic_corals_are_species_specific_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(19)33317-2 DB - PRIME DP - Unbound Medicine ER -