This study aims to investigate the ecological role of sponges as habitat formers on soft-bottom habitats of the mesophotic zone. As habitat formers, sponges significantly enhance benthic habitat complexity and establish associations with a plethora of organisms consequently augmenting local biodiversity. This role becomes particularly critical in areas subjected to intensive bottom trawling, where sponges often comprise a subs...

Sponge assemblages play a significant role in the functioning of the Mediterranean benthic ecosystem. The main goal of this study was to investigate the diversity and distribution of poorly known sponge communities in the mesophotic and deep-sea substrates of the eastern Mediterranean Sea. More than 1500 sponge specimens belonging to 87 taxa were collected from 156 stations during experimental and commercial bottom trawling in...

Mediterranean bottom trawling is generally characterised by a highly diversified mixed catch, composed of fish, cephalopods,crustaceans, and other megabenthic invertebrates. Although management of Mediterranean trawling requires a multispecies approach on a community basis, this does not seem to be the case in the relevant literature. Herein, we present an extensive review ofthe existing knowledge on megabenthic invertebrate c...

Sponges are among the less-studied benthic invertebrates as regards their extinction risk and conservation status. Herein, we evaluate the regional conservation status of sponges in the Aegean ecoregion (Eastern Mediterranean Sea), using the IUCN Red List criteria. We examined 20 sponge taxa falling into three categories: i) threatened species listed in Annex II of the Barcelona Convention, ii) bath sponge species (Annex III o...

The biological works of the Greek philosopher Aristotle include a significant amount of information on marine animals. In the present study, an overview of his scientific contribution to the knowledge of marine biodiversity and specifically to taxonomic classification, nomenclature and distribution of marine species is attempted. Our results showed that Aristotle’s approach looks remarkably familiar to present day marine biolo...

In an attempt to trace the origins of the science of ichthyology, we studied Aristotle's zoological works (21 books in total), aiming to give an exhaustive catalogue of his fishes, suitable for use by modern marine biologists, and to evaluate the great philosopher's knowledge of fish biology. Our investigation yielded 135 ichthyonyms used to describe 109 individual fish taxa (13 fishes had multiple names) and 12 terms that cor...

The number of alien species in the Mediterranean Sea is increasing rapidly, but few attempts have been made to evaluate impacts on specific habitat types. The present study investigated alien biodiversity in Mediterranean marine caves, both by contributing new records of Eastern Mediterranean cave aliens, and by reviewing the scattered existing literature; the main goals were to highlight potential impacts and investigate the...

Aim To study the composition of fauna in Greece and adjacent areas around 3000 years ago based on the knowledge of Homeric man about the animal kingdom. Location Greece and adjacent areas. Method Analysis of information derived from a thorough study of the first written documents of Greek literature, the epics, attributed to Homer and Hesiod. Results Records of 2442 animals were found, corresponding to 71 different animal name...