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 Russian Federal Agency for Fisheries (Rosrybolovstvo).
It was preceded (though not directly) by the Imperial Russian organization Murman Scientific Fisheries Expedition, which existed in the late 19th and early 20th centuries and conducted early research with the vessel Saint Andrew.
The Institute's main expedition ship Perseus, which had been with the Institute since its early days and undertaken close to 100 expeditions, was sunk by German air raiders in the early days of the war.
The main task of the team of scientists of the institute is conducting annual studies to help determine the total allowable catch of commercial fish species, invertebrates, algae and marine mammals.
The main focus is on cod, haddock, capelin, herring, Greenland halibut, the Barents Sea population of the Kamchatka crab, and salmon.