Nuray Erkan

Fishermen have caught a swordfish in Istanbul's Bosphorus Strait after approximately half a century since it was last seen in Turkish waters.

"It is good news to learn that an endangered species is seen in Istanbul Strait," Nuray Erkan, a professor from Istanbul University's Hydrology Faculty, told the daily Milliyet on Oct. 15.

While efforts are ongoing in line with a massive cleanup campaign launched by Turkish authorities to pull the Marmara Sea out of the mucilage calamity, residents are hesitant and concerned about consuming seafood coming from the sea.