Competitive advantage of the invasive copepod <i>Oithona davisae</i> over the indigenous copepod <i>Oithona nana</i> in the Marmara Sea and Golden Horn Estuary
Journal: Marine and Freshwater Behaviour and Physiology
Year: 2016

Around 2010, the alien copepod Oithona davisae was introduced to the Marmara Sea and Golden Horn Estuary to live alongside the native species, Oithona nana. By October 2015, the population number, including nauplii, of the introduced species (213,600 ind m−3) was higher than that of the native species (54,900 ind m−3) and close to that of O. davisae in Sevastopol Bay of the Black Sea (342,000 ind m−3) where it appeared 14 years ago. A high percentage of O. davisae females with ovisacs (up to 30%