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Introduction
Current institution
MedSharks
Publications
Publications (44)
Characterizing genetic variation by retrospective genotyping of trophy or historical artifacts from endangered species is an important conservation tool. Loss of genetic diversity in top predators, such as the white shark Carcharodon carcharias, remains an issue, exacerbated in this species by declining, sometimes isolated philopatric populations....
Recent works (Evelpidou et al., 2012) suggest that the modern tidal notch is disappearing worldwide due sea level rise over the last century. In order to assess this hypothesis, we measured modern tidal notches in several of sites along the Mediterranean coasts. We report observations on tidal notches cut along carbonate coasts from 73 sites from I...
The Stellaris porject is monitoring embryos of the Nursehound (Scyliorhinus stellaris) onsite in the Santa Croce Bank (Gulf of Naples, Italy), the largest known breeding area in the Mediterranean sea. One year of monitoring, with regular monthly diving check-ups between -25 and -45m of depth, has provided interesting observations on seasonal deposi...
Tidal notches, long regarded as reliable indicators of mean sea level, have been extensively studied along carbonate coasts in the central Mediterranean Sea. Previous studies revealed a correlation between the genesis of tidal notches and tidal range, lithology, cliff foot depth, and wave energy. In the 2020 Geoswim campaigns at Lampedusa, the sout...
Tidal notches, long regarded as reliable indicators of mean sea level, have been extensively studied along carbonate coasts in the central Mediterranean Sea. Previous studies revealed a correlation between the genesis of tidal notches and tidal range, lithology, cliff foot depth and wave energy. In the 2020 Geoswim campaign at Lampedusa, the southe...
Tidal notches are thought to form at the sea level, with well-defined morphometric features with respect to the sea level reference. Antonioli et al. (2015) described the morphometric parameters of more than 70 tidal notches in the Mediterranean area. Anyway, some variations can occur. In particular, at the southern coast of Lampedusa (Pelagie Isla...
This study presents results of long-term monitoring activities carried out by SCUBA divers inside the Gulf of Naples, in the context of an ongoing citizen science project. In the last five years, systematic high-frequency measurements of the sea temperature have been performed at three different depths over the Santa Croce Bank, a shallow area in t...
MedFever – An expanding network of 12 small observatories was established in the Tyrrhenian Sea in 2021 by MedSharks and ENEA, building on the experience of an observation point established in 2016 in the Gulf of Naples. Very high frequency measurements (15 minutes) at some standard depths (5-15-35m; occasionally at 10-20-25-30-50-60m) were obtaine...
In late summer 2020, a widespread mortality event severely affected colonies of the Mediterranean endemic orange coral Astroides calycularis in the Pelagie Islands (Strait of Sicily, southern Mediterranean Sea).
The degree of the mortality impact at seven study sites of the archipelago (five within the Pelagie Islands Marine Protected Area) was qua...
Since 2012 the Geoswim programme has been investigating coastal landforms along the Mediterranean rocky shores and their lateral variations, through snorkelling and field surveys. The focus of Geoswim investigation is collecting physical/chemical and ecological data relevant to the evaluation of past to future sea level changes. In spring 2017 we e...
The Mediterranean Basin is characterized by a significant variability in tectonic behaviour,
ranging from subsidence to uplifting. However, those coastal areas considered to be tectonically stable show coastal landforms at elevations consistent with eustatic and isostatic sea level change models. In particular, geomorphological indicators—such as t...
The Mediterranean Large Elasmobranchs Monitoring (MEDLEM) database contains over 3000 records (more than 4000 individuals) of large elasmobranch species from 20 different countries around the Mediterranean and Black seas, observed from 1666 to 2017. The main species included in the archive are the devil fish (1 813 individuals), the basking shark (...
Migratory movements in response to seasonal resources often influence population structure and dynamics. Yet in mobile marine predators, population genetic consequences of such repetitious behaviour remain inaccessible without comprehensive sampling strategies. Temporal genetic sampling of seasonally recurring aggregations of planktivorous basking...
Indagine sui cosmetici contenenti polietilene solido ha evidenziato 88 prodotti (esfolianti per corpo e viso, saponi struccanti, antiforfora) in vendita in Italia nel 2017. In una confezione di scrub per piedi di 150 ml erano contenuti 27,64 grammi di particelle di plastica, si stima la presenza di 10.884 particelle per millilitro e di circa 1.632....
An ongoing survey in supermarkets and perfume shops provides, for the first time in Italy, a list of personal care and cosmetic products containing polyethylene. The objective of this survey is to raise the awareness and enable citizens to make informed choices as consumers to protect marine ecosystems - and human well-being - eliminating a form of...
The Mediterranean is one of the most polluted seas worldwide, with quantities of floating particles comparable to accumulation zones in subtropical gyres. A growing series of studies is investigating the impact of plastics on Mediterranean marine biota.
A bibliographic review of Mediterranean elasmobranchs - the most threatened class of marine fis...
Citizen science can be defined as scientific research and monitoring projects for which members of the public collect, categorize, transcribe or analyze scientific data. From reporting alien or rare species, range shifts or phenology, to the opportunity to access extreme environments such as caves or depths beyond the range of SCUBA gear, citizen c...
Over 50 records of accidental catches, strandings and sightings dating from 1977 to 2013 reveal the regular presence of basking sharks (Cetorhinus maximus) (Condrichthyes: Lamniformes) in Apulia, south-east coast of Italy. Sightings/captures occur mostly from January to March and are concentrated in the Porto Cesareo/Gallipoli area in the Ionian Se...
Ten juveniles mako sharks (Isurus oxyrinchus) of 100-140 TL est. were caught between 2012 and 2014 with tremmel nets, lnlins and by anglers in the Central Thyrrenian sea (Italy). We also report the remarckable catch of five specimens, caught separately but within one month, in North-East Sardinina. Makos were once common in the Mediterranean sea bu...
It is presented the analyses on the MEDLEM (Mediterranean Large Elasmobranchs Monitoring) database that, up to now, contains more than 2000 records and over 2700 individuals of large elasmobranchs in the Mediterranean coming from 20 different countries. The main species represented in the archive are devil rays (736 individuals), basking sharks (ab...
The Mediterranean Large Elasmobranchs Monitoring (MEDLEM) database contains more than 2000 records (n>3000 individuals) of large elasmobranchs species from 20 different countries around the Mediterranean Sea caught or observed from 1666 to 2014. The main species represented in the archive are devil rays (736 individuals), basking sharks (682 indivi...
Close-circuit rebreathers (CCR) are an essential tool in an on-going monitoring project of a shark nursery in the Mediterranean sea.
Mermaid's purses - as the egg-cases of the nursehound catshark (scyliorhinus stellaris Linnaeus 1758) are called - are monitored at sea in the Gulf of Naples, Italy. here a large nursery area of this IUCN Red-Listed s...
The Mermaid’s Purse project collects volunteer divers’ reports of nursehound egg cases, Scyliorhinus stellaris (Linnaeus, 1758) (Chondrichthyes, Scyliorhinidae). Preliminary results of this ongoing study are presented here and identify some breeding areas of this species. This project is an example of citizen science as a valuable tool in providing...
Sightings/captures of basking sharks (Cetorhinus maximus), (Condrichthyes: Lamniformes) recorded within "Operazione Squalo Elefante" project between 2005 and 2012 in Sardinia, were compared with oceanographic conditions in the area as retrieved by satellite data. A total of 111 individuals were recorded, with peaks in 2005 and 2010 and no sightings...
This poster presents data on shark species caught by the Italian fleet in the Mediterranean sea between 2004 and 2011. Landings were recorded by IREPA, which is responsible for the production of fishery statistics in Italy with the contribution of the Ministry of Agriculture and Forestry Policies.
Mustelus spp. are the species most frequently caug...
The Great white shark (Carcharodon carcharias, Linnaeus 1758), is an apex predator living in almost all the seas of the world, preferring cold-temperate and temperate waters among the 8 and the 25°C. The Great White Shark occurs in both inshore and offshore waters. Known bathymetric range is from just below the surface to just above the bottom down...
This study aims to contribute data on the presence, distribution and seasonal changes in numbers of basking sharks Cetorhinus maximus (Chondrichthyes) around North Sardinia (Central Mediterranean sea). Thanks mainly to a public sighting record scheme begun in 2005, 55 records of 99 basking sharks were collected in an area where only 14 individuals...
Additional reports of the presence of Alopias superciliosus in Italian and Turkish waters confirm the presence of the species in the central and eastern Mediterranean Sea.
A population of sandbar sharks (Carcharhinus plumbeus) congregates in May and June in a small bay on the Turkish Aegean coast, Eastern Mediterranean sea. In 2001 the MedSharks project started a study of this population through underwater observations, photo-identification, dart-and PAT tagging, which is still underway. Observations indicate the pre...
A population of sandbar shark is known to congregate seasonally in a small bay on the Aegean coast of Turkey, Eastern Mediterranean sea. The MedSharks project initiated in 2001 a study of this population through UW observation, dart- and PAT tagging and photo-ID, which is still underway. UW photo-identification was performed consistently throughout...
Each year, as spring turns into summer, dozens of sandbar sharks (Carcharhinus plumbeus) enter a shallow bay on the Mediterranean coast of Turkey. Over 100 individuals have been photo- identified since 2001 based on scars and markings on their bodies. Several individuals are re- sighted every year, and three have been re-sighted over three subseque...
Each year, as spring turns into summer, dozens of sandbar sharks (Carcharhinus plumbeus) enter a shallow bay on the Mediterranean coast of Turkey. Over 100 individuals have been photo-identified since 2001 based on scars and markings on their bodies. Several individuals are re-sighted every year, and three have been re-sighted over three subsequent...
Preliminary results of a photo-identification on Carcharhinus plumbeus in a congregation site in Boncuk Bay, Turkey. Photo-identification was started in 2001, and in 2002 at least 3 individuals were resighted, confirming that natural markings as well the shape of dorsal and pectoral fins remain stable for at least one year.
People's perception (mental image) of sharks is created by the very first sequence (the opening theme) of any documentary or article. Our mind uses the first mental picture to anchor all the following information - social psychologists call this the primacy effect.
A video presentation will be given on the presence of sandbar sharks in a particular Bay in Turkish waters. The video will show the presence of mature male and female specimens, the Bay could be considered as a reproductive area of the species.
