Greek marine studies reveal shark biodiversity and trawling risks

New scientific research highlights the ecological dynamics of Greek waters, focusing on shark biodiversity and the impact of fishing practices. A study by the environmental organization iSea analyzed 5,596 records, identifying 62 different species in Greek seas. This includes 33 shark species, 28 ray species, and one chimaera species. Common sightings include the blue shark and various rays, while the study also notes the presence of threatened species like the great white shark.

Separately, research published in ‘Frontiers in Marine Science’ by the Hellenic Centre for Marine Research and the Technical University of Denmark warns of the consequences of bottom trawling restrictions. The study suggests that banning trawling in protected marine zones may shift fishing pressure to adjacent areas, specifically identifying the Patraikos Gulf as a likely recipient of this increased activity. The researchers note that without broader management, the concentration of trawling in these areas could cause the seabed environment to fall below healthy ecological thresholds.