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...
- Spezzaferri to participate in the cruise in 2015....
- Pisapia, C., El Kateb, A., Hallock, P., Spezzaferri, S., 2017b....
- Spezzaferri, S., El Kateb, A., Pisapia, C., Hallock, P., 2018....
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In: BioInvasions Records, 2018, vol. 7, no. 4, p. 391–398
The benthic foraminiferal genus Amphistegina is currently expanding its range in the Mediterranean Sea after being introduced through the Suez Canal from the Red Sea. Over the previous decade, Amphistegina spp. has colonized the eastern part of the Mediterranean Sea including the Egyptian and Libyan coasts, but the present southern limit in the Mediterranean Sea is along the southern Tunisian...
- (Spezzaferri et al. 2018 and references therein)....
- Bollettino-Societa Paleontologica
Italiana 44(3): 219–229
El Kateb A, Stalder C, Neururer C, Pisapia C, Spezzaferri S (2016)
Correlation between pollution and decline of Scleractinian
Cladocora caespitosa (Linnaeus, 1758) in the Gulf of Gabes....
- Oceanologia 56:
411–443, https://doi.org/10.5697/oc.56-3.411
Spezzaferri S, El Kateb A, Pisapia C, Hallock P (2018) In Situ
Observations of Foraminiferal Bleaching in the Maldives, Indian
Ocean....
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In: Swiss Journal of Geosciences, 2018, vol. 111, no. 3, p. 511–522
Here we define a new morphospecies of planktonic foraminifera Globigerinoides eoconglobatus n. sp., identified from International Ocean Discovery Program (IODP) expedition 359 samples from drift deposits of the Maldives, Inner Sea. Through biostratigraphic analysis, we infer it may be the direct ancestor of Globigerinoides conglobatus evolving from Globigerinoides obliquus in the Late Miocene...
- Spezzaferri, S. (1994)....
- Spezzaferri, S., Kucera, M., Pearson, P....
- Wade, B.S, Pearson, P.N., Olsson, R.K., Silva, I.P., Berggren, W.A.,
Spezzaferri, S, Huber, B....
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In: The Journal of Foraminiferal Research, 2015, vol. 45, no. 4, p. 344–353
Schackoinella spina n. sp. has been found in the eastern Alboran Sea at five different stations in water depths ranging from 258–330 m, as well as in one 532 m deep station in the Gulf of Cádiz, north-eastern Atlantic Ocean. Three stations have been sampled with a giant box core (BC) and two stations with a gravity core (GC) system. The sediments of the BCs and the GCs are characterized by...
- SCHACKOINELLA SPINA, A NEW BENTHIC FORAMINIFERAL SPECIES FROM COLD´
WATER CORAL ECOSYSTEMS OF THE ALBORAN SEA AND THE GULF OF CADIZ
´
CLAUDIO STALDER1,4, FLAVIUS SZEKELY-SZABOLCS2, AKRAM EL KATEB1, DAVID VAN ROOIJ3 AND SILVIA SPEZZAFERRI1
https://doc.rero.ch
ABSTRACT
(Comas & Pinheiro, 2008)....
- Station list of the BC and GC samples where S. spina Stalder & Spezzaferri n. sp. have been found....
- Length and width data for 37 specimens of Schackoinella spina Stalder & Spezzaferri n. sp....
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In: Atlas of benthic foraminifera from cold-water coral reefs - Special Publication / Cushman Foundation For Foraminiferal Research, 2014, vol. 44, p. 20-48
- Autecology of selected species of benthic foraminifera identified in this study (modified after Spezzaferri and others, 2013)....
- The coralrich layers contain epifaunal faunas comparable to those
31
¨
SPEZZAFERRI, RUGGEBERG, STALDER, AND MARGRETH
Figure 3.4....
- MARTINS, V., DUBERT, J., JOUANNEAU, J., WEBER, O., SILVIA, E....
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In: Atlas of benthic foraminifera from cold-water coral reefs - Special Publication / Cushman Foundation For Foraminiferal Research, 2014, vol. 44, p. 12-19
- Cushman Foundation Special Publication No. 44, p. 12–19, 2014
Chapter 2
AN OVERVIEW ON COLD-WATER CORAL ECOSYSTEMS AND FACIES
¨
AGOSTINA VERTINO1, SILVIA SPEZZAFERRI2, ANDRES RUGGEBERG3,4, CLAUDIO STALDER2, ANDREW J....
- Margreth and others (2009) and Spezzaferri
13
¨
VERTINO, SPEZZAFERRI, RUGGEBERG, STALDER, WHEELER, ET AL....
- Scale bars: 4 cm.
17
¨
VERTINO, SPEZZAFERRI, RUGGEBERG, STALDER, WHEELER, ET AL....
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In: Atlas of benthic foraminifera from cold-water coral reefs - Special Publication / Cushman Foundation For Foraminiferal Research, 2014, vol. 44, p. 3-11
- Cushman Foundation Special Publication No. 44, p. 3–11, 2014
Chapter 1
COLD-WATER CORAL REEFS ALONG THE EUROPEAN
CONTINENTAL MARGIN: THE ROLE OF FORAMINIFERA
¨
ANDRES RUGGEBERG1,2, SILVIA SPEZZAFERRI3, CLAUDIO STALDER3
AND
STEPHAN MARGRETH3
1
Renard Centre of Marine Geology, Ghent University, Krijgslaan 281, S8, B-9000 Gent, Belgium....
- Spezzaferri and others (2013)
17....
- Spezzaferri and others (2013), 17....
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In: The Journal of Foraminiferal Research, 2009, vol. 39, no. 2, p. 112-119
The Oligocene–Miocene transition is characterized by a low degree of biotic turnover (extinction plus origination) in many microfossil groups and especially in planktonic foraminifera. Few species appear, evolve, and disappear across this boundary, and the existence of transitional forms between key species makes biostratigraphic resolution of the boundary interval difficult. The boundary is...
- DISTRIBUTION AND ECOLOGY OF CATAPSYDRAX INDIANUS, A NEW PLANKTONIC FORAMINIFER INDEX SPECIES FOR THE LATE OLIGOCENE–EARLY MIOCENE
SILVIA SPEZZAFERRI1,3
ABSTRACT
AND
PAUL N....
- Today, the FO of Globigerinoides primordius has been discarded because it occurs in the late Oligocene, as documented, for example, by Stainforth and others (1975), Lamb and Stainforth (1976), Berggren and others (1985), Iaccarino (1985), Premoli Silva and Spezzaferri (1990), Spezzaferri and Premoli Silva (1991), Spezzaferri (1994), and Spezzaferri (1996)....
- (Premoli Silva and Spezzaferri, 1990; Spezzaferri, 1994)....
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In: The Journal of Foraminiferal Research, 2007, vol. 37, no. 3, p. 270-276
We present a recently developed method using a field emission scanning electron microscope (FEG) to view and photograph microfossil specimens that are not coated by conductive material. The FEG microscope provides high electron flux and offers the option to capture images at low beam voltage. Balancing incident energy with absorbed energy from the detector leads to charge-free images of...
- SCANNING ELECTRON MICROSCOPE IMAGES OF UNCOATED MICROFOSSILS: APPLICATIONS, PERSPECTIVES AND LIMITATIONS
SILVIA SPEZZAFERRI*, CHRISTOPH NEURURER, CLAUDIUS PIRKENSEER
AND
BERNARD GROBETY
University of Fribourg, Department of Geosciences, Geology and Paleontology, Chemin du Musee 6, 1700 Fribourg, Switzerland ´
ABSTRACT
https://doc.rero.ch
We present a recently developed method using a field emission scanning electron microscope (FEG) to view and photograph microfossil specimens that are not coated by conductive material....
- E {2 :
used and described in Caron and Spezzaferri (2006) is that specimen irradiation is lower, and the quality of the photographs is suitable for publication....
- SPEZZAFERRI, S., and SPIEGLER, D., 2005, Fossil planktonic foraminifera (an overview): Palaontologisches Zeitschrift, Stuttgard, ¨ v. 79, no. 1, p. 149–166.
7...
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In: Journal of Micropalaeontology, 2004, vol. 23(2), p. 139
Bolboforma is a microfossil of uncertain origin with affinities to protophytic algae. It generally occurs at high latitudes and/or in cool and temperate waters and has a high stratigraphic potential especially for the Miocene. Calcareous cysts of dinoflagellates represent the ‘benthic cyst stage’ of unicellular organisms belonging to the marine phytoplankton.The occurrence of...
- Spezzaferri & F....
- Spezzaferri & F....
- Spezzaferri & F....
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