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  • 1
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    Experiment on effects of natural inorganic microparticles and microplastics on mussels of the family Mytilidae from five different bioregions (2021)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Description: This dataset comprises data obtained during a 6 week-long exposure experiment of mussels of the family Mytilidae to two types of microplastics, namely polymethyl methacrylate (PMMA) and polyvinylchloride (PVC) particles and two types of natural inorganic microparticles, namely diatoms and red clay. This data was obtained from May to September 2019 in five different bioregions, which are Tasmania, Chile, Japan, Cabo Verde and Israel. We recorded body condition index, byssus thread production in 24 hours, clearance rate of the food algae and respiration rate at the end of six weeks of exposure to the four different microparticles (with an exception of the groups exposed to PVC and red clay in Tasmania, which lasted 5 weeks). Mussels were exposed to three concentrations of each particle type, which were 1.5, 15 and 150 mg/l and one group to no particles at all as control.
    Keywords: Area/locality; Byssus production per individual; Clearance rate; Dry mass; GAME; Global Approach by Modular Experiments; Microplastics; Mytilidae; natural microparticles; Particle concentration; Respiration rate, oxygen; seston; Shell, mass; Shell length; Species; Status; Survival; Temperature, water, annual mean; Treatment; Wet mass
    Type: Dataset
    Format: text/tab-separated-values, 9377 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    The role of host promiscuity in the invasion process of a seaweed holobiont (2021)
    Nature Research
    Details
    Publication Date: 2024-02-07
    Description: Invasive species are co-introduced with microbiota from their native range and also interact with microbiota found in the novel environment to which they are introduced. Host flexibility toward microbiota, or host promiscuity, is an important trait underlying terrestrial plant invasions. To test whether host promiscuity may be important in macroalgal invasions, we experimentally simulated an invasion in a common garden setting, using the widespread invasive macroalga Agarophyton vermiculophyllum as a model invasive seaweed holobiont. After disturbing the microbiota of individuals from native and non-native populations with antibiotics, we monitored the microbial succession trajectories in the presence of a new source of microbes. Microbial communities were strongly impacted by the treatment and changed compositionally and in terms of diversity but recovered functionally by the end of the experiment in most respects. Beta-diversity in disturbed holobionts strongly decreased, indicating that different populations configure more similar –or more common– microbial communities when exposed to the same conditions. This decline in beta-diversity occurred not only more rapidly, but was also more pronounced in non-native populations, while individuals from native populations retained communities more similar to those observed in the field. This study demonstrates that microbial communities of non-native A. vermiculophyllum are more flexibly adjusted to the environment and suggests that an intraspecific increase in host promiscuity has promoted the invasion process of A. vermiculophyllum. This phenomenon may be important among invasive macroalgal holobionts in general.
    Type: Article , PeerReviewed
    Format: text
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    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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