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Chrysoula Gubili

Chrysoula Gubili
Hellenic Agricultural Organization - DIMITRA

Doctor of Philosophy

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64
Publications
12,402
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533
Citations

Publications

Publications (64)
Article
Full-text available
Shape morph-specific studies in hippolytid shrimps revealed significant results on their ecomorphology and evolutionary adaptations. Among the species of the genus Hippolyte, only one exhibits an unusual, sharp rostral dimorphism and has been used as an animal model for the investigation of mechanisms of the morph-specific adaptation: the intertida...
Article
Bald uakaris, genus Cacajao, are Amazonian primates currently classified as one species and four subspecies based on the patterns of pelage coloration. In this study, we test if their current taxonomy is represented by the phylogenetic relationship of the main lineages retrieved from molecular data. We included, for the first time, all bald uakari...
Conference Paper
Full-text available
The present work presents the length-weight relationship, and the reproductive biology of the marbled electric ray, Torpedo marmorata (Risso 1810) from the Eastern Ionian and Aegean Seas. The samples were collected from October 2017 to August 2020. A total of 135 females and 109 males were collected, with a total length ranging from 91 to 464 mm fo...
Article
Full-text available
This work presents new information on the morphological aspects, reproductive biology and diet of the marbled electric ray Torpedo marmorata Risso 1810, in the Eastern Ionian and the Aegean Seas, from October 2017 to August 2020. The whole dataset consisted of 135 females and 109 males, ranging between 91–464 mm and 99–313 mm in total length (TL),...
Book
Full-text available
This handbook provides an overview of diverse approaches, methods and tools for integrated, sustainable and participatory governance of marine and coastal cultural heritage. It is written for decision makers, local communities and researchers, providing both conceptual and practical information on diverse topics, including: approaches such as the l...
Conference Paper
Full-text available
Marine biological invasions are widely recognized as an ongoing threat during the last decades, which disturb the endemic biodiversity and has economic impact on the local fisheries. Morphometric features usually offer a direct overview of the invasive ectotherms' fitness. The Atlantic blue crab Callinectes sapidus, is an Invasive Alien Species wit...
Poster
Full-text available
Marine biological invasions are widely recognized as an ongoing threat during the last decades, which disturb the endemic biodiversity and has economic impact on the local fisheries. Morphometric features usually offer a direct overview of the invasive ectotherms’ fitness. The Atlantic blue crab Callinectes sapidus, is an Invasive Alien Species wit...
Article
Mislabeling of seafood products and marketing of protected species remains a worldwide issue despite the labeling regulations set at a local, European and International level. DNA barcoding has proven to be the most popular and accurate method of detection of fraudulent seafood products. This study investigated the batoid meat market of Greece, the...
Article
Full-text available
Seafood labels play an increasingly key role in assisting consumers in purchasing processed and featureless fish products, and in encouraging sustainable fishing and aquaculture practices. While informed purchasing choices are typically influenced by traceability and labelling awareness, they also depend on the consumers’ ability to identify and di...
Article
Full-text available
In this study, molecular taxonomy associated with Spicara flexuosa, Spicara maena, and Spicara smaris was examined with a geographical focus along the coasts of the Turkey and the Mediterranean. In addition, the effects of the Turkish Straits System on the evolutionary history and phylogeography of Spicara flexuosa were investigated. The mitochondr...
Article
Full-text available
Rays (Batoidea) are among the most threatened groups of vertebrates. Slow growth and low fecundity make many species vulnerable to overfishing, but increased demand for gill rakers in traditional Chinese medicine and elasmobranch meat means exploitation continues. In response, protection has increased, with manta and devilrays (Mobulidae) and sawfi...
Article
Full-text available
In this study, the taxonomic resolution and phylogenetic relationship of two presumed subspecies of Merlangius merlangus, namely M. m. euxinus and M. m. merlangus, were investigated. In addition, the effect of the Turkish Straits System on the evolutionary history and genetic structure of M. merlangus, was explored. The mitochondrial cytochrome c o...
Article
Full-text available
Members of the smoothhound shark genus Mustelus display a widespread distribution pattern across ocean basins with a high degree of sub-regional endemism. The patterns and processes that resulted in smoothhound biodiversity and present-day distribution remain largely unknown. We infer the phylogenetic relationships of the genus Mustelus, based on s...
Article
Full-text available
Currently, seven dasyatid species have been described in the Mediterranean Sea: Bathytoshia lata , Dasyatis marmorata , Dasyatis pastinaca , Dasyatis tortonesei , Himantura uarnak , Pteroplatytrygon violacea and Taeniura grabata . Papaconstantinou (2014) listed four species of Dasyatidae occurring in Greece ( P. violacea , D. pastinaca , D. tortone...
Article
Full-text available
Genomic evidence is increasingly underpinning that hybridization between taxa is commonplace, challenging our views on the mechanisms that maintain their boundaries. Here, we focus on seven catadromous eel species (genus Anguilla) and use genome-wide sequence data from more than 450 individuals sampled across the tropical Indo-Pacific, morphologica...
Article
Full-text available
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...
Conference Paper
Full-text available
The cDNAs encoding the hemocyanin subunits from the blue crab (Callinectes sapidus, Rathbun, 1896) were studied. The complementary DNA (cDNA) from the hepatopancreas was amplified, using specific primers, yielding a PCR product of about 700 bases which was cloned into a plasmid vector and used to transform E. coli bacteria. Restriction enzyme diges...
Conference Paper
Full-text available
Chondrichthyans, particularly batoids, are under high pressure due to human impacts and unregulated fishing. Ray and skate species are favoured for human consumption in Greece, however, most of the batoids are poorly managed due to the lack of species-specific catch and trade data. In the market, they are usually beforehand processed, whereas ray f...
Article
Full-text available
Seagrass meadows and the associated invertebrate fauna, are important ecological biodiversity indicators for coastal marine environments. Increasing anthropogenic stress and climate change, have made these habitats priority targets for monitoring and conservation, however, relevant information is poor for the eastern Mediterranean Sea. The present...
Conference Paper
Full-text available
Fishery of decapod crustaceans remain, globally, a process that provides societies with very important commercial food items, which are considered high nutritional resources, mainly due to their composition in protein and fatty acids. The aim of the present study is to investigate and compare the chemical composition of fatty acids and calorific en...
Poster
Full-text available
Polychromatism reported in batoids has caused misidentification in closely related species. We applied DNA sequencing to resolve taxonomic issues (brought up during a PhD thesis on batoids), between three species of the Rajidae family: Raja clavata, Raja polystigma and Raja montagui.
Article
The globally distributed heterotrophic dinoflagellate Noctiluca scintillans (Macartney) Kofoid & Swezy is well known for its dense blooms and prominent displays of bioluminescence. Intriguingly, along the west coast of the U.S.A., its blooms are not bioluminescent. We investigated the basis for this regional loss of bioluminescence using molecular,...
Preprint
Full-text available
Genomic evidence is increasingly underpinning that hybridization between taxa is commonplace, challenging our views on the mechanisms that maintain their boundaries. Here, we focus on seven catadromous eel species (genus Anguilla), and use genome-wide sequence data from more than 450 individuals sampled across the tropical Indo-Pacific, morphologic...
Article
Selection forces that favour different phenotypes in different environments can change frequencies of genes between populations along environmental clines. Clines are also compatible with balancing forces, such as negative frequency‐dependent selection (NFDS), which maintains phenotypic polymorphisms within populations. For example, NFDS is hypothe...
Conference Paper
Full-text available
Lack of morphological features due to food processing is common in elasmobranchs. Such methods increase the chances of species substitution with cheaper alternatives or endangered species, leaving consumers unprotected from unfair or deceptive practices. DNA barcoding has become the most commonly applied approach for species identification, as it i...
Article
Food authenticity has received an increasing focus due to high profile cases of substitution/mislabeling, with many investigations identifying sales of endangered or prohibited species. At the same time, the European Union (EU) has introduced one of the most progressive sets of legislation in order to promote traceability and protect consumers. Thi...
Article
Type 2 diabetes mellitus (T2DM) is evolving to an epidemic of the modern world. T2DM is associated with a number of pathological complications, including cardiovascular disease that is mostly promoted by the increased oxidative stress in type 2 diabetic patients. We performed a randomized double-blind placebo-controlled trial to investigate the eff...
Article
Full-text available
Understanding the population structure of tropical anguillids residing in the Pacific is vital for their conservation management. Here, the population genetic structure of five sympatric freshwater eels (Anguilla marmorata Quoy & Gaimard, A. megastoma Kaup, A. obscura Steindachner, A. reinhardtii Günther and A. australis Richardson) across 11 weste...
Presentation
Full-text available
Hippolyte Leach, 1814 is a widespread and challenging genus demonstrating high variability and remarkable polymorphisms. Among its 32 species, Hippolyte sapphica d’Udekem d’Acoz, 1993 is the only species with a clear, sharp rostral dimorphism: morphA (exhibiting a well-developed rostrum) and morphB (exhibiting a juvenile-like rostrum), which confir...
Article
Full-text available
Aim To test the importance of alternative diversification drivers and biogeographical processes for the evolution of Amazonian upland forest birds through a densely sampled analysis of diversification of the endemic Amazonian genus Rhegmatorhina at multiple taxonomic and temporal scales. Location Amazonia. Taxon Antbirds (Thamnophilidae). Method...
Poster
Full-text available
Seagrass meadows and the associated invertebrate fauna have been considered as important ecological biodiversity indices for coastal marine environments. Even though increasing anthropogenic stress and climate change have made these habitats priority targets for monitoring and conservation, relevant information is poor for the eastern Mediterranean...
Article
Full-text available
Aim To investigate the evolution of the avifauna associated to Amazonian fluvial islands, focusing on the Negro River archipelagos. Locations Fluvial islands in the Amazon Basin. Methods One generalist floodplain species (Hypocnemoides melanopogon) and three river island specialists (Myrmotherula assimilis, Myrmoborus lugubris and Thamnophilus ni...
Article
The alpha taxonomy of the globally distributed shark genus Squalus has been under intense investigation recently, and many new species have been described over the last decade. However, taxonomic uncertainty remains about several taxa. Without consistent nomenclature and the ability to reliably distinguish between the different Squalus species, bas...
Article
The alpha taxonomy of the globally distributed shark genus Squalus has been under intense investigation recently, and many new species have been described over the last decade. However, taxonomic uncertainty remains about several taxa. Without consistent nomenclature and the ability to reliably distinguish between the different Squalus species, bas...
Article
Full-text available
Ecosystem fragmentation and habitat loss have been the focus of landscape management due to restrictions on contemporary connectivity and dispersal of populations. Here, we used an individual approach to determine the drivers of genetic differentiation in caribou of the Canadian Rockies. We modelled the effects of isolation by distance, landscape r...
Article
Fish use different modalities to access mates for reproduction, often referred to as Alternative Reproductive Tactics (ARTs). ARTs are an example of coexisting phenotypes, which have to hold some degree of reproductive success to persist in a population. In the Mediterranean damselfish (Chromis chromis), territorial males colonise nests on rocky re...
Article
Full-text available
Thirteen novel polymorphic microsatellite loci were isolated and characterized from the Amazonian Black Manakin, Xenopipo atronitens. The loci were screened using 30 samples from Brazil. A total of 13 loci were variable with number of alleles per locus ranging from 2 to 17, whilst the observed and expected heterozygosities varied from 0.067–0.900 a...
Article
Full-text available
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....
Article
Full-text available
The spawning areas of tropical anguillid eels in the South Pacific are poorly known, and more information about their life histories is needed to facilitate conservation. We genetically characterized 83 out of 84 eels caught on Gaua Island (Vanuatu) and tagged 8 eels with pop-up satellite transmitters. Based on morphological evidence, 32 eels were...
Article
Full-text available
Seventeen new polymorphic microsatellites were isolated and characterized for the South American Rufous-crowned Elaenia, (Elaenia ruficeps). E. ruficeps is a bird commonly found in white sand vegetation, a naturally fragmented and threatened Amazonian habitat. The number of alleles per locus ranged from 2 to 20, whilst the observed and expected het...
Article
Full-text available
Elasmobranchs represent important components of marine ecosystems, but they can be vulnerable to overexploitation. This has driven investigations into the population genetic structure of large-bodied pelagic sharks, but relatively little is known of population structure in smaller demersal taxa, which are perhaps more representative of the biodiver...
Article
Full-text available
Large-scale genetic sampling by non-invasive methods is of vital importance for the conservation of vulnerable or elusive species. In the marine environment, non-invasive genetic sampling can provide a powerful alternative to conventional biopsies. We designed and implemented mucus swabbing for a free-ranging elasmobranch, thereby demonstrating the...
Article
Full-text available
The provenance of white sharks (Carcharodon carcharias) in the Mediterranean is both a conundrum and an important conservation issue. Considering this species's propensity for natal philopatry, any evidence that the Mediterranean stock has little or no contemporary immigration from the Atlantic would suggest that it is extraordinarily vulnerable. T...
Article
Full-text available
Visual identification of naturally acquired marks has been a popular if subjective method of animal identification and population estimation over the last 40years. Molecular genetics has also independently developed objective individual marking techniques during the same period. Here, we assess the concordance of individual great white shark (Carch...

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Projects

Projects (6)
Project
The aim is to develop a prognostic model, which will enable the end users (aquaculture farms) to determine the critical points at which interventions are necessary to prevent disease outbreaks in marine farmed fish. The model will be based on environmental data that include both biotic and abiotic factors. The study area from which these data will be collected is the “Sagiada strip” at the Northwestern part of Greece (Epirus Region), an area that contributes 12% of the total marine aquaculture production of Greece. The basic axes of the project are 1) the monitoring and recording of hydrological and environmental parameters of the study area, 2) the isolation and identification of disease causing agents (bacteria, parasites viruses) from infected fish, 3) the development and application of specialized molecular tools and protocols for the detection and quantification of the infectious agents in environmental samples and in particular in aquafarm waters 4) the correlation of the predominant environmental conditions with the presence of infectious agents and the outbreaks of diseases in fish for the development of the prognostic model. In the project, in addition to scientists from the Institutes of Fisheries Research and Veterinary Research of the Hellenic Agricultural Organization "DEMETER" (HAO-DEMETER) and from the Institute of Applied Biosciences of the Center of Research & Technology, Hellas (CERTH), also participate the mariculture companies Skaloma S.A., Lorida S.A., and Bastia S.A. The project is funded through a grant from the Operational Programme of Fisheries and Sea (Innovation in Aquaculture) 2014-2020.
Project
The major aim of this project is to determine the self-healing capabilities of the E. Mediterranean from accidental deep sea oil releases. To achieve this goal, we will simulate a deep sea oil spill in a bioreactor system under in situ environmental conditions and study the fate of oil in the hydrocarbon plume that is expected to be formed in a deep sea release. Oil degradation accomplished with and without the application of biostimulation agents will be monitored and the development, and succession of the hydrocarbon-degrading microbial community will be assessed and associated with the progress of oil degradation over time and distance.
Project
Unprocessed anchovies are an extremely perishable fisheries product with a maximum self-life of four days, when stored in ice, before being rejected by consumers. The aim of this project is to extend its commercial self-life with the use of slurry ice enriched with micro/nano ozone bubbles. The project, among other things, will study the effect of the ozone micro/nano bubbles on the microbiome of anchovies, as well as on the autolytic and the bacterial-driven lytic processes. NGS technology (metabarcoding) will be applied to determining the effect of ozone on the anchovy microbiome, while 2D-DIGE analysis will be used to quantify changes in the anchovy muscle proteome with respect to storage conditions (slurry ice vs ozonated slurry ice) and time. This project is a collaboration between the Fisheries Research Institute and the Eastern Macedonia and Thrace Institute of Technology. The project is funded by the Operational Program “Fisheries and Sea, 2014-2020”.