Pandalus eous is a species of cold-water shrimp in the family Pandalidae, commonly referred to as the Pacific northern shrimp. It is distributed in cold, subarctic marine waters around northern Japan, the Sea of Okhotsk, the Bering Sea, and adjacent Russian and Alaskan coasts. The genus name Pandalus is derived from Greek, historically used in zoological nomenclature for shrimp-like crustaceans, while the species epithet eous comes from Greek ēōs, meaning “dawn” or “eastern,” likely referencing its distribution in the eastern or Pacific regions. This species is closely related to Pandalus borealis, the Atlantic northern shrimp.

Pandalus eous inhabits deep, cold marine environments, typically along continental shelves and slopes, where it feeds on small invertebrates, detritus, and planktonic material. Like many pandalid shrimp, it exhibits protandric hermaphroditism, meaning individuals begin life as males and later transition to females, a reproductive strategy common among cold-water shrimp species. The shrimp has a slender, elongated body with a pinkish coloration that intensifies upon cooking, a trait typical of carotenoid-containing crustaceans.

Pandalus eous is valued for its sweet, delicate flesh and is consumed boiled, steamed, or chilled, often served as peeled shrimp or incorporated into sushi, salads, and seafood dishes. In Japanese cuisine, similar shrimp are used in preparations such as amaebi (sweet shrimp), where freshness and texture are highly prized. The meat is tender and slightly firm, with a naturally sweet flavor derived from free amino acids and glycogen content.

Nutritionally, Pandalus eous provides high-quality protein and is low in fat while containing essential nutrients such as vitamin B12, iodine, selenium, and phosphorus. It also contains carotenoid pigments, particularly astaxanthin, which contributes to its coloration and has antioxidant properties. Additional bioactive compounds include taurine and small peptides formed during digestion or processing, which have been studied for potential cardiovascular and metabolic benefits.