Androniki Tamvakis

University of the Aegean · Department of Marine Sciences

Rapid diagnosis of dermatophytosis is essential for early treatment induction and prevention of spreading to other animals and humans. No single diagnostic test is identified as the “gold standard”. The purpose of the study was to evaluate the sensitivity of adhesive tape impression (ATI) cytology in dermatophyte identification and to compare three...

The objective of the present study was to measure the concentration of Paraoxonase-1 (PON-1) and N-terminal-prohormone-B-type natriuretic peptide (NT-proBNP), in the serum of dogs with degenerative Mitral Valve Disease (MVD), in order to identify their association with the clinical stage and specific clinico-pathologic and echocardiographic finding...

Ticks and fleas are blood-sucking ectoparasites that cause irritation and anaemia to their hosts and act as vectors of pathogens (vector-borne pathogens, VBPs) of relevance for animal and human health. In the present study, tick and flea species in dogs and cats from Cyprus were recorded and VBPs were detected in the collected specimens. Ectoparasi...

Scientific background The aim of this prospective study was to assess whether the Sequential Organ Failure Assessment (SOFA) score could be indicative of outcome (survival to discharge) in dogs with parvoviral enteritis. Methods In 35 naturally infected dogs, the SOFA score and clinical score were calculated and the presence of systemic inflammato...

Harmful algal species are present in the Mediterranean Sea and are often associated with toxic events affecting the nearby coastal zones. The presence of 18 marine microalgae, at genus level, associated with potentially harmful characteristics was predicted using a number of machine learning techniques based exclusively on a small set of abiotic va...

Pseudo-nitzschia is a globally distributed genus in the oceans of our planet. Several species of this genus are associated with the production of Domoic Acid, a toxin responsible for amnesic shellfish poisoning. As a result, the prediction of the toxic Pseudo-nitzschia species abundance is crucial due to economic and ecological impacts related with...

The current study investigated for the first time the occurrence of filarial infections in dogs in Cyprus. Blood samples of dogs from five districts of Cyprus (Lefkosia, Lemessos, Larnaka, Pafos and Ammochostos) were examined by the modified Knott's method and by serology, and the morphological classification of microfilariae was confirmed by molec...

The present study investigated the presence of endo- and ecto-parasites, and vector-borne pathogens, in dogs from four islands of Greece. A total of 200 (123 owned and 77 sheltered) dogs were examined with different microscopic, serological and molecular methods. Of the examined dogs, 130 (65%) were positive for one or more parasites and/or vector-...

Greece is an endemic country for human and canine leishmaniosis. Studies about the role of lagomorphs and minks in the epidemiology of the diseases are, so far, limited. The aim of the present study was to investigate the prevalence of Leishmania infection in these animals, in different areas of the country. Samples from 393 domestic and wild rabbi...

The present study investigated the presence of endo- and ecto-parasites, and vector-borne pathogens, in dogs from four islands of Greece. A total of 200 owned and sheltered dogs were examined with different microscopic, serological and molecular methods. Of the examined dogs, 130 (65%) were positive for one or more parasites and/or vector-borne pat...

Η παρούσα εργασία έχει σκοπό να καταγράψει το βαθμό στον οποίο συμμετέχουν στην πρόβλεψη της ικανοποίησης των φοιτητών του Ελληνικού Ανοικτού Πανεπιστημίου από τις σπουδές τους η αλληλεπίδραση που είχαν με τον/την καθηγητή/τρια σύμβουλο, η αποτελεσματικότητα του καθηγητή – συμβούλου και η αξιολόγηση του προγράμματος της θεματικής ενότητας. Για την...

Objective: To investigate the prevalence of Leishmania infection in rodents from various areas of Northern Greece. Methods: 97 rodents (66 Mus musculus, 18 Rattus norvegicus and 12 R. rattus) were collected during pest control programs and examined by cytology (spleen and liver smears), serology (ELISA) and PCR (real-time and gel-based) for Leis...

The problem being investigated in this paper concerns the generation of an optimal ensemble (i.e. subset) of classifiers (picked up from set of classifiers applied on a specific classification task) that maximizes the classification performance of the voting ensemble method. The design of an algorithmic framework to meet the above goal would benefi...

Background The nematodes Dirofilaria immitis and D. repens are enzootic in Greece. In the light of evidence of dirofilariosis spreading to new areas around the world, the aim of the present study was to update and enrich the current knowledge on the prevalence of Dirofilaria infections in dogs in Greece, to assess the risk factors of heartworm infe...

In the present study, social network analysis and graph theory were used in order to detect fish habitat trends and co-occurrences among different island regions of the Cyclades Archipelago, Central Aegean Sea. More specifically fish counts measured in 295 sampling sites in 31 islands were used to construct one network for each island. The observe...

Voting ensemble method combines results of single classifiers aiming to offer improved classification performance. However, it is intuitively accepted that the combined classifiers during voting should be both diverse and accurate. In this study, we used the unsupervised method of cluster analysis in four datasets related to medical diagnosis in or...

Phytoplankton compositional diversity in space and time is related to the individual characteristics of species (functional traits) influencing interactions with their environment. In the present study phytoplankton beta diversity in coastal areas of the Aegean sea (890 assemblages from 6 coastal areas) was assigned to the characteristics of the ne...

16 Summary Anisakis is a parasite of marine mammals that uses a great number of fish species as intermediate or paratenic hosts. It is common in commercially important marine fishes and its presence is of great concern for both human health and economic reasons. Horse mackerels (Trachurus trachurus) originated from the Northern Aegean Sea were exam...

The gulf of Gera is a semi-enclosed water body located in the island of Lesvos, GREECE in the Aegean archipelago. The watershed of the gulf, of approximately 200 Km2, can be divided into two parts with differences in geomorphology and land use. The western part of 170 km2, is characterized by a rather smooth terrain cultivated mainly with olive tre...