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This study on the Talorchestia deshayesii population was conducted on the Puck Bay beach in Jurata located on the Hel Peninsula. An attempt was made to locate the overwintering site of this species and also to investigate the composition of the population while in anabiosis. Series of holes were made in the substrate, and the overwintering site of Talorchestia deshayesii in the Puck Bay was located. The abundance and size structure of the population was also determined.
Key words: sandhoppers, sandy beach, overwintering, Puck Bay