Cited by 58Environmental Toxicology and EcotoxicologyMarine Biology and Environmental ChemistryHeavy Metal Pollution Remediation

Accumulation and effects of metal mixtures in two seaweed species

Jarvis, Tayler A., Bielmyer-Fraser, Gretchen K.·2015·Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology

Abstract

Metal pollution, due to various anthropogenic sources, may pose a threat to marine ecosystems. Metals can be introduced into food chains via bioaccumulation in primary producers, and may potentially lead to toxic effects. Macroalgae are used as food by a wide variety of organisms, and are therefore extremely important in aquatic systems. This study investigated the accumulation and effects of metals in two macroalgae species. The green seaweed, Ulva lactuca and the red seaweed, Agardhiella subulata were each concurrently exposed to five metals (Cu, Ni, Pb, Cd, and Zn) and U. lactuca was also exposed to each metal individually for 48 h. Metal accumulation in the seaweed was measured, and various photosynthetic parameters were assessed, using imaging pulse amplitude modulated (PAM) fluorometry. Increased metal accumulation occurred in both seaweed species after 48 h exposure to metal mixtures and each metal individually. The distribution of metals in both seaweed species changed with increasing metal exposure concentrations, resulting in higher proportions of Cu and Zn in the metal-exposed groups, as compared to respective controls. Further, U. lactuca accumulated higher concentrations of metals when exposed to each metal individually rather than in metal mixtures, suggesting interactions among metals for uptake and/or bioaccumulation. Significant impairment of photosynthetic parameters in U. lactuca was observed after exposure to 100 and 1000 μg/L metal mixtures, as well as 100 μg/L of either Cd or Cu. These results demonstrate metal bioaccumulation and toxic effects in important primary producers, and may have implications for higher trophic levels.

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Crossref · 10.1016/j.cbpc.2015.03.005

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Authors
Jarvis, T. A., & Bielmyer-Fraser, G. K.
Affiliations
Valdosta State University (US)
Venue
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology
Publisher
Elsevier BV
Published
2015-05
Volume
171
Pages
28-33
ISSN
1532-0456 (ISSN-L)
OpenAlex
W1963925069
Cited by
58
References
59
Citations by year
2026: 6 · 2025: 2 · 2024: 5 · 2023: 9 · 2022: 7 · 2021: 6 · 2020: 4 · 2019: 8 · 2018: 5 · 2017: 3 · 2016: 1 · 2015: 1
FWCI
2.09
Type
journal article
Language
en
Open access
closed
Locations
  • Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Valdosta State University
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Physical Sciences › Engineering › Ocean Engineering › Marine Biology and Environmental Chemistry
  • Physical Sciences › Environmental Science › Water Science and Technology › Heavy Metal Pollution Remediation
Keywords
metal mixtures, metal bioaccumulation, seaweed, Ulva lactuca, Agardhiella subulata, metal toxicity, photosynthesis, copper, cadmium, zinc, nickel, lead, metal interactions, marine pollution, primary producers
MeSH terms
Rhodophyta, Fluorometry, Osmolar Concentration, Photosynthesis, Seaweed, Tissue Distribution, Water Pollutants, Chemical, Metals, Heavy, Ulva, Toxicokinetics

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