C. Dounas

C. Dounas
Institute of Marine Biology, Biotechnology and Aquaculture, HCMR

PhD

About

123
Publications
28,930
Reads
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1,886
Citations
Additional affiliations
January 2001 - August 2015
Hellenic Centre for Marine Research
Position
  • Research Director

Publications

Publications (123)
Conference Paper
Full-text available
The present pilot study aims at evaluating knowledge, attitudes, and behaviour concerning ocean issues in relation to university students in Greece. A 3-scale questionnaire was developed and administered to 106 students. Results revealed that Marine Sciences students were found to have better knowledge as well as pro-environmental attitudes and beh...
Article
Full-text available
Recreational SCUBA diving is currently a nature-based USD multibillion tourism industry across the globe. However, degradation of many recreational diving destinations all over the world due to “soft” ecotourists necessitates the adoption of innovative management measures. Hellenic Centre for Marine Research (HCMR) developed an innovative technolog...
Article
Full-text available
There is growing interest about marine bivalve aquaculture globally, not only for the market value of the goods produced, but also for the socioeconomic and environmental services that this activity can provide. Arca noae is an endemic Mediterranean bivalve of commercial value, whose previously undescribed population in Elounda Bay we studied in te...
Article
Full-text available
The colonization of artificial structures by benthic organisms in the marine realm is known to be affected by the general trophic patterns of the biogeographical zone and the prevailing environmental traits at the local scale. The present work aims to present quantitative data on the early settlement progress of macrofaunal benthic assemblages deve...
Chapter
The present study is part of a project funded by the Greek Ministry of Agriculture in order to update the historical scientific data available for Messara Bay and propose measures for the protection and sustainable exploitation of its marine biological resources as this area used to be one of the most important fishing grounds in the Cretan contine...
Article
Full-text available
This study investigates the trophic diversity of fishes living in a meadow of Caulerpa prolifera on a bimonthly basis between May 2006 and April 2007 in a semi-enclosed coastal marine ecosystem of the Mediterranean Sea (Elounda Bay, Crete Island). The study area is shallow and protected from waves, and it is covered by a C. prolifera bed, character...
Article
The history of water supply and wastewater engineering in Crete Island (Greece) dates back more than ca 4,500 years, since the early Bronze Ages. In the Minoan era, it was recognized that the removal of wastewater and storm-water were necessary for communal living. The early Minoan developments in wastewater and storm-water collection and removal a...
Article
Full-text available
Since recreational diving activities have increased in recent decades, resulting in additional environmental pressure on the coastal zone, the deployment of artificial reefs as a conservation strategy to divert mass ecotourism from fragile natural reefs has been proposed and realized in many areas of the world. Twelve units of a patented naturoid a...
Article
The present study was carried out in the marine area of Stratoni, Greece, where two seahorse species are present (Hippocampus hippocampus and H. guttulatus). Two surveys were conducted (September 2016, May 2019) to gather information regarding seahorse species' abundance, distribution and habitat characteristics. Four different seahorse natural and...
Article
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The checklist of Tanaidacea of Greece was developed in the framework of the LifeWatchGreece Research Infrastructure (ESFRI) project and coordinated by the Hellenic Centre for Marine Research during the period 2013-2015. By applying the Greek Taxon Information System (GTIS) of this project, a complete checklist of species recorded from Greek Seas ha...
Article
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The coastal ocean is one of the most important environments on our planet, home to some of the most bio-diverse and productive ecosystems and providing key input to the livelihood of the majority of human society. It is also a highly dynamic and sensitive environment, particularly susceptible to damage from anthropogenic influences such as pollutio...
Article
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The present study investigates the distribution of trace metals (Fe, Mn, Cr, Zn, Pb, Cu and Al), as indicators of pollution, in the surficial inner shelf sediments along the northern coast of Heraklio Gulf (Crete Island). Despite the fact that Heraklio Gulf is an industrialized urban area, hosting the third most important commercial harbour in Gree...
Article
Full-text available
The checklist of Stomatopoda of Greece was developed in the framework of the LifeWatchGreece Research Infrastructure (ESFRI) project, coordinated by the Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC) of the Hellenic Centre for Marine Research (HCMR). The application of the Greek Taxon Information System (GTIS) of this project ha...
Article
Full-text available
The emblematic sponge Spongia officinalis is currently threatened by recurrent mortality incidents in its native habitats. Elevated temperature has been indicated as a major triggering factor, but the molecular mechanisms recruited for the organism's response to thermal shifts are yet unknown. Here, we experimentally tested the effect of exposure t...
Article
Full-text available
Objectives: We report a transcriptome acquisition for the bath sponge Spongia officinalis, a non-model marine organism that hosts rich symbiotic microbial communities. To this end, a pipeline was developed to efficiently separate between bacterial expressed genes from those of eukaryotic origin. The transcriptome was produced to support the assess...
Conference Paper
Full-text available
The Underwater Biotechnological Park of Crete (UBPC) is an applied research infrastructure established in 2015 at the island of Crete (Aegean Sea, Eastern Mediterranean), occupying a seafloor area of 2.5 hectares at depths between 18 and 22 m. Its main objectives are: (a) the continuous monitoring of coastal environmental parameters; (b) the experi...
Poster
Sponges are organisms with simple body plan, without true tissue differentiation. Moreover, they are notorious for hosting rich, regulated symbiotic bacterial communities, thus creating the sponge holobiont. These traits, combined with the expansive and diverse nature of the poriferan phylum and the fact that only two sponge species have been seque...
Article
The critically endangered “bamboo coral” Isidella elongata is a near-endemic protected species for which limited information exists in the Eastern Mediterranean Sea. The aim of this work was to update the known geographical distribution of I. elongata in the Eastern Mediterranean by combining literature data with unpublished records (from experimen...
Article
Subtidal hard bottoms are of particular scientific and economic value as they are highly productive systems. They are less well studied compared with soft bottoms, as they often require manual sample collection via scuba diving. Although a multitude of sampling devices is available for soft bottoms, only a few are suitable for hard substrates, and...
Poster
Full-text available
Artificial reefs (ARs) are submerged man-made constructions aiming to enrich the marine life of a given area providing shelter and facilitating the attraction and concentration of several taxa (Klaoudatos et al. 2012). The functional and morphological characteristics of the innovative ARs deployed by the Hellenic Centre for Marine Research (HCMR) i...
Poster
Full-text available
Introduction/Aim: Within the last decades several Artificial Reefs (ARs) have been deployed in the European seas as a measure for the enhancement of fish stocks and to a lesser extent for the protection and enhancement of seabed habitats (Fabi et al. 2011). The “HCMR Recreational Diving OasisTM” constitutes an innovative concept based on the constr...
Conference Paper
Full-text available
The native Mediterranean bath sponge Spongia officinalis is threatened for the past decades due to unregulated harvesting and outbreaks of disease incidents. However, it still attracts worldwide commercial interest and is being actively exploited. Since late 2014, an experimental aquaculture of this sponge has been maintained in the Underwater Biot...
Article
The present study investigates the structure and intra-annual variation of the benthic macrofaunal community associated with a dense monospecific C. prolifera meadow in a shallow semi-enclosed coastal marine ecosystem of the eastern Mediterranean Sea (Elounda Bay, Crete Island). The samples were collected on five occasions (May, September and Novem...
Article
Full-text available
Background Citizen Science (CS) as a term implies a great deal of approaches and scopes involving many different fields of science. The number of the relevant projects globally has been increased significantly in the recent years. Large scale ecological questions can be answered only through extended observation networks and CS projects can support...
Article
Full-text available
Although a management plan including measures for the conservation and maintenance of marine biological resources of Elounda Bay was proposed in 2007 by the Hellenic Centre for Marine Research (HCMR), no progress has yet been made for the implementation of the proposed or any other similar measures. Despite the financial crisis in Greece, the regio...
Article
Full-text available
A new type of artificial habitat for recreational diving that fully retains or even exceeds the functionality of natural reefs has been developed by the Hellenic Centre for Marine Research (HCMR). The deployment of these innovative artificial structures made of concrete provides enhanced availability and diversity of microhabitats and structural re...
Article
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In the present Collective Article information on 26 taxa belonging to 8 Phyla and extended from the western Mediterranean to the Levantine Sea are presented. The new records were found in 9 countries as follows: Spain: first record for the Mediterranean of the crab Cancer bellianus; Algeria: further records of the alien fish Lagocephalus sceleratus...
Poster
Full-text available
A new type of artificial habitat for recreational diving that fully retains or even exceeds the functionality of natural reefs has been developed by the Hellenic Centre for Marine Research (HCMR). The deployment of these innovative artificial structures made of concrete provides enhanced availability and diversity of microhabitats and structural re...
Article
The benthic boundary layer (BBL) macrofauna consists of epibenthic, hyperbenthic and zooplanktonic organisms with different degrees of mobility and bottom dependence. The top-level predators within this habitat include demersal fish species. The BBL species are considered to be the most readily available prey for these fish making them an attractiv...
Conference Paper
Full-text available
The seafloor observatory of the Underwater Biotechnological Park of Crete (UBPC), is a pioneer singular installation deployed at a depth of 20 m in a special designated coastal area of 25.000 m 2 located in Gournes, Heraklion Crete. UBPC is a large scale research facility of the Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC) of...
Conference Paper
Full-text available
The present study concerns the occurrence, distribution and abundance of 12 non-indigenous fish species (11 lessepsian immigrants) collected along the coasts of Crete Island in 15 boat seine catches and recorded by divers (summer of 2009). Four of these species, Apterichthus caecus of Atlantic origin as well as Lagocephalus suezensis, Torquigener f...
Poster
Full-text available
En Mer Méditerranée, le coralligène et les herbiers de Posidonies, qui sont de loin les plus étudiés, sont les habitats les plus importants du point de vue biodiversité côtière. Ils sont le milieu principal produisant complexité structurelle et biodiversité. Les récifs coralligènes produisent des biens (ressources alimentaires et matière première,...
Poster
Full-text available
The coralligenous is a typical Mediterranean marine habitat and hosts the highest concentration of biodiversity of this sea. Paradoxically, unlike Posidonia meadows, it is poorly studied. Like the famous tropical coral reefs, it is a complex biogenic habitat, based on encrusting red algae (numerous metazoan phyla also participate to bio-constructio...
Poster
Full-text available
The Mediterranean Sea is hosting almost 10% of the total marine biodiversity in spite of representing less than 1% of the global ocean surface. This regional sea experiences high anthropogenic pressures, such as growing human population density along the coasts, urbanization, (over)harvesting of living and raw resources, extensive maritime traffic,...
Conference Paper
Full-text available
The present study investigates the distribution of trace metals (Fe, Mn, Cr, Zn, Pb, Cu and Al), as indicators of pollution, in the surficial offshore shelf sediments along the northern coast of Heraclion Gulf of Crete. This is an intensely industrialized urban area also hosting significant touristic activity and the Heraklion harbour (the third in...
Article
The community structure of hyperbenthos on continental shelves and upper slopes of oligotrophic areas have been little studied. The present study, located in the eastern Mediterranean (Heraklion Bay, Crete) gives the first description of this using samples collected at depths ranging between 50 and 300 m in two seasonal occasions (March and Septemb...
Article
Full-text available
AbstractThis paper discusses the design and implementation of a citizen science pilot project, COMBER (Citizens’ Network for the Observation of Marine BiodivERsity, http://www.comber.hcmr.gr), which has been initiated under the ViBRANT EU e-infrastructure. It is designed and implemented for divers and snorkelers who are interested in participating...
Article
Full-text available
The Mediterranean bath sponge Spongia officinalis is an iconic species with high socio-economic value and precarious future owing to unregulated harvesting, mortality incidents and lack of established knowledge regarding its ecology. This study aims to assess genetic diversity and population structure of the species at different geographical scales...
Article
Full-text available
This study attempts to evaluate the status of the populations of bath sponges (species of the genera Spongia and Hippospongia) in the Aegean, combining historical sources dated before a series of disease outbreaks that occurred from 1986 on, unpublished data obtained during the recovery phase after the first incident, as well as a current survey of...