Publications by authors named "Eldad Gutner-Hoch"

Article Synopsis
  • The study investigates the influence of bacteria acquired post-brooding on the development of planula-larvae for the octocoral Rhytisma f. fulvum, using various types of seawater in a lab setting.* -
  • Results showed successful larval metamorphosis (60-80%) even in bacteria-free conditions, suggesting that bacteria obtained during brooding are sufficient for development, but autoclaving seawater negatively affected development.* -
  • Light exposure positively influenced larval growth after 20 days, hinting at either the role of light as a developmental cue or potential beneficial phototrophic bacteria, highlighting the importance of bacterial interactions in coral biology.*
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Antifouling booster biocides are chemicals used in protective paints to tackle the adhesion of fouling organisms to maritime artificial structures. However, they are also known to exert toxic effects on non-target organisms. Recent research developments have highlighted the potential use of engineered micro/nanomaterials (EMNMs) as carriers of antifouling booster biocides in order to control their release and to reduce the harmful effects on living biota.

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Reef building corals precipitate calcium carbonate as an exo-skeleton and provide substratum for prosperous marine life. Biomineralization of the coral's skeleton is a developmental process that occurs concurrently with other proliferation processes that control the animal extension and growth. The development of the animal body is regulated by large gene regulatory networks, which control the expression of gene sets that progressively generate developmental patterns in the animal body.

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Article Synopsis
  • Coral reefs are currently at risk due to rapid climate change affecting seawater conditions, but they have historically survived major fluctuations in atmospheric CO2 levels since the Cenozoic era.
  • The coral genus Acropora, which includes 20 morphological groups and 150 species, has maintained a consistent skeletal structure for at least 40 million years, as seen in well-preserved fossil skeletons.
  • Fossil Acropora skeletons provide valuable insights into ancient ocean chemistry, as their aragonitic skeletons reflect changes in ocean magnesium/calcium ratios throughout history.
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Reef-building scleractinian (stony) corals are among the most efficient bio-mineralizing organisms in nature. The calcification rate of scleractinian corals oscillates under ambient light conditions, with a cyclic, diurnal pattern. A fundamental question is whether this cyclic pattern is controlled by exogenous signals or by an endogenous 'biological-clock' mechanism, or both.

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