Université de Fribourg

Living (stained) foraminifera in the Lesser Syrtis (Tunisia): influence of pollution and substratum

El Kateb, Akram ; Beccari, Valentina ; Stainbank, Stephanie ; Spezzaferri, Silvia ; Coletti, Giovanni

In: PeerJ, 2020, p. e8839

Foraminifera are protozoans with biomineralized tests that can be successfully used as a low cost monitoring tool to assess the health status of marine environments. Living benthic foraminiferal assemblages can provide essential information on natural and/or anthropogenic stresses and provide baseline conditions for studies on fossil material. Several studies have highlighted the negative impact...

Université de Fribourg

Preliminary video-spatial analysis of cold seep bivalve beds at the base of the continental slope of Israel (Palmahim Disturbance)

Beccari, V. ; Basso, D. ; Spezzaferri, Silvia ; Rüggeberg, A. ; Neuman, A. ; Makovsky, Y.

In: Deep Sea Research Part II: Topical Studies in Oceanography, 2020, vol. 171, p. 104664

Seafloor video surveys were carried out with the ROV Max Rover in the Palmahim Disturbance (PD) area, offshore Israel, in September 2016 during the EUROFLEETS2 SEMSEEP cruise on board the R/V AEGAEO. Preliminary observations of distribution and frequencies of bivalve accumulations show that they are mostly composed by Lucinoma kazani shells. Valves are distributed mainly along the base of...

Université de Fribourg

Macro- and micro-fauna from cold seeps in the Palmahim Disturbance (Israeli off-shore), with description of Waisiuconcha corsellii n.sp. (Bivalvia, Vesicomyidae)

Basso, D. ; Beccari, V. ; Almogi-Labin, A. ; Hyams-Kaphzan, O. ; Weissman, A. ; Makovsky, Y. ; Rüggeberg, A. ; Spezzaferri, Silvia

In: Deep Sea Research Part II: Topical Studies in Oceanography, 2020, vol. 171, p. 104723

Chemosymbiotic micro- and macro-fauna related to cold-seep sites were recovered in the Palmahim Disturbance (PD), offshore Israel, during EU EUROFLEETS2 SEMSEEP Cruise, by box-coring and Remotely Operated Vehicle (ROV) dives. No live macrofauna was identified in the collected sediments, with the exception of the seep-related crustacean Calliax lobata (de Gaillande and Lagardère, 1966)....

Université de Fribourg

Photic stress on coral reefs in the Maldives: The Amphistegina bleaching index

Stainbank, Stephanie ; Spezzaferri, Silvia ; Beccari, Valentina ; Hallock, Pamela ; Adams, Arthur ; Angeloz, Aurelie ; Basso, Daniela ; Caragnano, Annalisa ; Piero, Nicolo Del ; Dietsche, Patrick ; Eymard, Ines ; Farley, Nicholas ; Fau, Marine ; Foubert, Anneleen ; Lauper, Bruno ; Lehmann, Anael ; Maillet, Marine ; Negga, Haileyesus ; Ordonez, Luis ; Peyrotty, Giovan ; Rime, Valentin ; Rüggeberg, Andres ; Schoellhorn, Iris ; Vimpere, Lucas

In: Ecological Indicators, 2020, vol. 113, p. 106257

The Amphistegina Bleaching Index (ABI) was applied to three Maldivian reefs in the Rasdhoo and North Ari Atolls in 2018, during normal sea surface temperature conditions. This dataset was then compared with a 2015, pre-coral bleaching study. The results provide a context for the verification and application of the ABI in outlining the photo-inhibitory stress status of coral reefs outside of...

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2 Beccari, Valentina