Condizione ecologica di <i>Ruditapes decussatus</i> (<i>Veneridae</i>) e sua presenza in aree di raccolta nel Golfo di Olbia = Ecological status and occurrence of <i>Ruditapes decussatus</i> (<i>Veneridae</i>) in harvested sites within the Gulf of Olbia

A pilot study was performed in order to evaluate the ecological status of the clam Ruditapes decussatus and its occurrence in specific harvested areas within the Gulf of Olbia. Indeed, since 1998, stocks of this clam seems to be decreased, due to intense human harvesting

Determinazione specifica di individui giovanili del genere <i>Patella</i> fissati su adulti di <i>Patella ferruginea</i> (Gmelin, 1791), tramite utilizzo del DNA barcoding = Specific attribution of juveniles belonging to tehe genus <i>Patella</i> set on adults of <i>Patella ferruginea</i> (Gmelin, 1791) by means of DNA barcoding

A genetic analysis was performed on two individuals belonging to the genus Patella recovered as epibionti on P. ferruginea (Gmelin, 1791). The survey was carried out by means of the Cytochrome c Oxidase (COI) Folmer’s region. Results obtained evidenced the occurrence of a juveniles of P. ferruginea and one of P. rustica, and confirmed that COI is an invaluable tool for the DNA barcoding

Mitochondrial DNA reveals genetic structuring of <i>Pinna nobilis</i> across the Mediterranean Sea

Pinna nobilis is the largest endemic Mediterranean marine bivalve. During past centuries, various human activities have promoted the regression of its populations. As a consequence of stringent standards of protection, demographic expansions are currently reported in many sites. The aim of this study was to provide the first large broad-scale insight into the genetic variability of P. nobilis in the area that encompasses the western Mediterranean, Ionian Sea, and Adriatic Sea marine ecoregions. To accomplish this objective twenty-five populations from this area were surveyed using two mitochondrial DNA markers (COI and 16S). Our dataset was then merged with those obtained in other studies for the Aegean and Tunisian populations (eastern Mediterranean), and statistical analyses (Bayesian model-based clustering, median-joining network, AMOVA, mismatch distribution, Tajima’s and Fu’s neutrality tests and Bayesian skyline plots) were performed. The results revealed genetic divergence among three distinguishable areas: (1) western Mediterranean and Ionian Sea; (2) Adriatic Sea; and (3) Aegean Sea and Tunisian coastal areas. From a conservational point of view, populations from the three genetically divergent groups found may be considered as different management units

Analysis of the genetic variability of <i>Patella ferruginea</i> Gmelin, 1791 (Gastropoda: Patellidae) populations from the North-East Sardinia = Analisi della variabilità genetica in popolazioni di <i>Patella ferruginea</i> Gmelin, 1791 (Gastropoda: Patellidae) provenienti dalla Sardegna nord-orientale

The mollusc Patella ferruginea (Gastropoda, Patellidae), endemic to the Medilerranean, is the most endangered marine species on the list of the European Couneil Directive 92/43/EEC and it is presently under serious risk of extinction. This research was aimed to unravel the genetic variability of some Sardinian populations sampled on the North-Eastern coast, in order to shed light on their status of conservation

The Role of a marine protected area in safeguarding the genetic diversity of rare species: the case of <i>Patella ferruginea</i> Gmelin, 1791 (Gastrpoda: Patellidae) = Il Ruolo delle aree marine protette per la salvaguardia della diversità genetica di specie rare: il caso di <i>Patella ferruginea</i> Gmelin, 1791 (Gastropoda: Patellidae)

Patella ferruginea (Gastropoda: Patellidae) is an endangered marine gastropod, distributed on the western Mediterranean coasts, whose range has progressively contracted, due to intense human exploitation. Our attention focused on its genetic structure, in order to gather information about levels of genetic variability of P. ferruginea from the Asinara Marine Protected Area and a neighbouring non-protected area

Identificazione mediante DNA barcoding del mitilide alloctono <i>Xenostrobus securis</i> e nuove segnalazioni in Mediterraneo occidentale = DNA barcoding identification of the exotic mussel <i>Xenostrobus securis</i> and new records in Western Mediterranean

The present study reports species' identification by means of DNA barcoding and new records of the invasive pygmy mussel Xenostrobus securis (Lam. 1819) (Mollusca, Bivalvia), native to South Oceania, in some Western Mediterranean brackish-water biotopes. Monitoring of this species is recommended, given its ecological effects on native biological communities and as fouling agent

Searching for Solutions to the Problems of Society

A Pró-Reitoria de Cultura e Extensão Universitária da USP é formada por um conjunto de doze órgãos, treze programas, quatro câmaras, quinze núcleos de apoio à cultura e extensão, ações de fomento e financiamento a projetos e 1200 bolsas para estudantes de graduação pelo Aprender com Cultura e Extensão. Além disso, mantém importantes programas de atendimento à sociedade, como o USP e as Profissões, Universidade Aberta à Terceira Idade e Giro Cultural USP. Administrar este universo diversificado de atividades é o desafio da socióloga Maria Arminda do Nascimento Arruda em sua segunda gestão à frente da Pró-Reitoria de Cultura e Extensão Universitária. Nesta entrevista, a comissão editorial da Revista de Cultura e Extensão USP conversou com a pró-reitora sobre importância da cultura e extensão universitária e os desafios para esta área

Standardization of inter simple sequence repeat technique to estimate genetic variability of <i>Ruditapes decussatus</i> = Standardizzazione della tecnica inter simple sequence repeat per studiare la variabilità genetica di <i>Ruditapes decussatus</i>

Ruditapes decussatus (L., 1758) is a bivalve autochthonous of the Mediterranean. We focused on the possible use of the ISSR technique to investigate its genetic variability. We tested four primers on 15 specimens from three northern Sardinian sites. We evidenced that i) ISSRs can detect satisjactory levels of genetic variability and ii) produce replicable and easily scorable results

Preliminary data on the genetic variability of the fan mussel <i>Pinna nobilis</i> in the Northern Sardinia = Dati preliminari sulla variabilità genetica del mollusco bivalve <i>Pinna nobilis</i> nella Sardegna settentrionale

The fan mussel Pinna nobilis Linnaeus, 1758 is one of the most endangered Mediterranean bivalve. After a reduction of its distribution as a consequence of anthropic factors, the environmental politics led to a new demographic increasing of individuals in some Mediterranean regions. This work aimed to shed some light on the genetic structure of two new-raised populations in northern Sardinia