This thesis provides an overview of the history of Crikvenica's fisheries from 1908 to 1950. During this period, Crikvenica experienced rapid development in its fisheries, becoming a significant fishing center in the northern Adriatic. The focus is primarily on the work of brothers Ivan and Josip Skomerža, who were instrumental in introducing the first motorized fishing boat in the Adriatic (1908) and implementing numerous innovations in fishing operations and business practices. The thesis evaluates the impact of the Skomerža brothers on the development of fishing in Crikvenica, as well as their broader influence on the modernization of Adriatic fishing. Attention is also given to the work of Crikvenica native Petar Dračić (Dragić), whose invention of the Californian-style tuna fishing method significantly changed tuna fishing worldwide. The influence of Dračić’s invention on Adriatic tuna fishing is examined, along with the significance of Crikvenica's tuna fishermen. Furthermore, the thesis discusses the role of Ivan Skomerža, an expert on fishing in the Croatian Littoral, in the negotiations leading to the signing of the Convention of Brijuni in 1921, which sought to resolve the issue of fishing zone boundaries between the Kingdom of Serbs, Croats, and Slovenes and the Kingdom of Italy. Finally, this thesis explores the activities of Crikvenica's fishing cooperatives from 1921 to 1950, focusing on their efforts to improve the material and social status of fishermen, as well as their involvement in fish sales and processing, the presentation of fishing heritage, fishermen education, and more. Special attention is given to the growth of the Crikvenica – Sveta Jelena Fishing Cooperative into the Central Fishing Cooperative Crikvenica, a branch of the Central Fishing Cooperative in Split for the northern Adriatic. In addition to providing an insight into the history of small costal town of Crikvenica, this thesis aims to shed light on important insights for understanding the general history of Adriatic fishing and the economic history of the eastern Adriatic region in the first half of the 20 th century.