5 Works

Data from: Photoacclimation and induction of light-enhanced calcification in the mesophotic coral Euphyllia paradivisa

Gal Eyal, Itay Cohen, Lee Eyal-Shaham, Or Ben-Zvi, Yaron Tikochinski & Yossi Loya
Corals and their photosymbionts experience inherent changes in light along depth gradients, leading them to have evolved several well-investigated photoacclimation strategies. As coral calcification is influenced by light (a process described as LEC-“light enhanced calcification”), studies have sought to determine the link between photosynthesis and calcification, but many puzzling aspects still persist. Here we examine the physiology of Euphyllia paradivisa, a coral species found at a wide range of depths but that is strictly mesophotic...

Work that body: fin and body movements determine herbivore feeding performance within the natural reef environment

Roi Holzman, Christopher H. Martin, Asaph Rivlin & Tal Perevolotsky
Herbivorous fishes form a keystone component of reef ecosystems, yet the functional mechanisms underlying their feeding performance are poorly understood. In water, gravity is counter-balanced by buoyancy, hence fish are recoiled backwards after every bite they take from the substrate. To overcome this recoil and maintain contact with the algae covered substrate, fish need to generate thrust while feeding. However, the locomotory performance of reef herbivores in the context of feeding has hitherto been ignored....

Microplastics alter feeding strategies of a coral reef organism

Marlena Joppien, Hildegard Westphal, Marleen Stuhr & Steve Doo
Increasing marine microplastic pollution has detrimentally impacted organismal physiology and ecosystem functioning. While previous studies document negative effects of microplastics on coral reef animals, the potential responses of organisms such as Large Benthic Foraminifera (LBF) are largely unknown. Here, we document the impact of microplastics on heterotrophic feeding behavior of LBF. Specimens of Amphistegina gibbosa were incubated in three experimental treatments: (1) Artemia sp. nauplii only; (2) pristine microplastic particles only; (3) choice of nauplii...

Data from: Acclimatization of symbiotic corals to mesophotic light environments through wavelength transformation by fluorescent protein pigments

Edward G. Smith, Cecilia D'Angelo, Yoni Sharon, Dan Tchernov & Joerg Wiedenmann
The depth distribution of reef-building corals exposes their photosynthetic symbionts of the genus Symbiodinium to extreme gradients in the intensity and spectral quality of the ambient light environment. Characterizing the mechanisms used by the coral holobiont to respond to the low intensity and reduced spectral composition of the light environment in deeper reefs (greater than 20 m) is fundamental to our understanding of the functioning and structure of reefs across depth gradients. Here, we demonstrate...

Shallow-marine carbonate cementation in Holocene segments of the calcifying green alga Halimeda

Thomas Mann , André Wizemann , Marleen Stuhr , Yannis Kappelamann , Alexander Janßen , Jamaluddin Jompa & Hildegard Westphal
Early-diagenetic cementation of tropical carbonates results from the combination of numerous physico-chemical and biological processes. In the marine phreatic environment it represents an essential mechanism for the development and stabilization of carbonate platforms. However, many early-diagenetic cements that developed in the marine phreatic environment are likely to become obliterated during later stages of meteoric or burial diagenesis. In this contribution, a petrographic microfacies analysis of Holocene Halimeda segments collected on a coral island in the...

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  • 2022
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  • Interuniversity Institute for Marine Sciences in Eilat
  • Leibniz Centre for Tropical Marine Research
  • University of Bremen
  • Tel Aviv University
  • Hasanuddin University
  • New York University
  • University of California, Berkeley
  • University of Southampton
  • University of Haifa
  • Ruppin Academic Center