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 on early June 2017 and since then it is 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
Posidonia oceanica is an endemic seagrass species in the Mediterranean Sea. It has a key ecological role and lot of impacts on its ecosystem. Its roles in fisheries production and in sediment stabilization are well-known. In fact, meadows of seagrass provide habitats for a number of threatened species. However, throughout the Mediterranean they are declining
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
With the worldwide increase in the production of plastics over the last century, in combination with the overall lack of plastic waste management, the impact of plastics on marine environments has become a critical concern. Microplastics develop from the degradation of larger plastics, such as plastic bottles, bags, and many other improperly discarded objects, that
Since the opening of the Suez Canal between the Red Sea and the Mediterranean Sea there has been a steady flow of invasive species entering the Aegean Sea out of which there are over 32 established fish species. At Archipelagos Institute we are monitoring the spread of these species in the region of the NE
Assessment of Fish Biodiversity in P. oceanica seagrass meadows in Lipsi island   Posidonia oceanica is an endemic seagrass species of the Mediterranean Sea. Research in other areas of the Mediterranean Sea has shown that P. oceanica meadows provide habitats for a diverse fish community and they have an especially important role as breeding and
Assessing the Grazing Activity of Sea Urchins Sea urchins are herbivorous animals that live on rocky substrate and graze on macroalgae. Pollution and overfishing of their predators, led to massive increase of the sea urchin population across the Mediterranean. As a consequence, macroalgae forests has tended to disappear, causing cascades effects on other organisms that
Development of a Methodology to Assess Anchor Damages on Posidonia Seagrass Meadows   Following the increase of coastal urbanization, 46% of the Posidonia oceanica meadows have disappeared or become threatened by a number of factors including boat anchoring. In the Aegean islands, where recreational yachting is a major touristic activity this environmental threat is an