Mankind is having a major impact on every ecosystem on earth. From the very tops of the tallest peaks to the deepest abysses in our oceans, the world is changing, and how we measure these impacts, is also changing. Bioindicator species are helping us understand how we have affected our world and can even
Microplastics content found in edible fish and invertebrate species of the Eastern Aegean Sea, February 2018 The increasing abundance of marine plastic debris is a worldwide issue and it represents a critical threat in areas such as the Mediterranean Sea. Many studies so far already documented the negative effects of this global issue on marine
Echinoderms play an important role in marine, benthic ecosystems. They can be both carnivorous or, most importantly, grazers. The grazing of sea urchins specifically reduces the rate of colonization on bare rocks by settling organisms. This keeps algae in check, thereby enhancing the biodiversity of coral reefs. Despite that, echinoderms sometimes have large population swings
The presence of vast amounts of plastics in our oceans is cause for great concern for our marine wildlife due to their toxicity, persistence and ubiquity. With the production of plastics increasing, these pollutants are entering our oceans and breaking down into microplastics (MPs) at an ever-increasing rate. Microplastics are buoyant fragments of <5mm which
Seagrass​ ​plays​ ​a​ ​vital​ ​role​ ​in​ ​the​ ​health​ ​of​ ​coastal​ ​ecosystems​ ​all​ ​across​ ​the​ ​world.​ ​It​ ​is​ ​useful​ ​in sediment​ ​stabilization​ ​and​ ​carbon​ ​storage,​ ​and​ ​it​ ​supports​ ​a​ ​very​ ​diverse​ ​set​ ​of​ ​organisms.​ ​The seagrass​ ​beds​ ​often​ ​house​ ​commercial​ ​invertebrate​ ​and​ ​fish​ ​species,​ ​and​ ​are​ ​therefore​ ​not​ ​only ecologically​ ​important​ ​but​ ​economically,​ ​as​ ​well. Seagrasses​
The Marine Conservation Team of Archipelagos Institute has started to use marine bioindicator species to monitor ecosystems of the littoral zone. Bioindicator species are species which only can sustain within high quality environmental conditions. The use of Bioindicator Species is becoming of increasing importance as they can tell us more about the cumulative effects of
The long-term macroplastic monitoring project began in early June 2017 and has since been carried out almost daily in two beaches of SE Samos. Every weekday, two members of the research team go to the sites to collect all the debris left by the public and washed in by the sea. All the collected debris
Posidonia oceanica is an endemic seagrass species in the Mediterranean Sea. It has a key ecological role and many impacts on its ecosystem. Its role in fisheries production and in sediment stabilization are well-known. In fact, seagrass meadows provide habitats for a number of threatened species. However, throughout the Mediterranean these meadows are declining at
The Ocean Acidification (OA) problem is referred to a reduction of the sea water pH caused primarily by the anthropogenic increasing uptake of CO2 from the atmosphere. There is a direct relationship between atmospheric CO2 and ocean pH: as CO2[atm]-uptake increases, the pH drops. Industrial activities have resulted in an increase in atmospheric CO2 concentrations
With climate change and ocean acidification of the seas, more alien species are spreading in our seas. The green macroalgae, Caulerpa cylindracea, is considered an invasive species native from Australia that has rapidly spread across the Mediterranean since 1926. C. cylindracea colonises a variety of substrata, and its dominating presence has been found to alter