The Nikolai M. Knipovich Polar Research Institute of Marine Fisheries and Oceanography (Russian: Полярный научно-исследовательский институт морского рыбного хозяйства и океанографии имени Н. М. Книповича), its acronym being PINRO (Russian: ПИНРО), is one of several research institutes of Russia subordinate to the (Rosrybolovstvo). It is based in Murmansk. It is named for Nikolai Knipovich.