Fisheries have a great significance in the diet of the population from ancient times to nowadays, changing with population growth and technology development. Fishermen are the main suppliers of seafood and they can give us important information on fish and other marine organisms, and therefore the term FLEK (Fisheries local ecological knowledge) has been recently developed and used. In this thesis, the fishermen's knowledge of fishery gears, fish species and other marine organisms on the part of the Velebit Channel in the Zadar County, including the Novigrad Sea in the fishing zone E (E3 and E4), was investigated. The purpose of this work is that the data collected can be used to establish sustainable fishing in this area. The survey was conducted using a questionnaire. The highest percentage of surveyed fishermen in this area (85%) are engaged with small-scale fishing. The main fishing gears of the surveyed fishermen are: longliner, fish trap, fish spear, and nets (gillnet and tramellnet). Results of this study have shown that total fish catch have been decreasing since the 1950s to date, although fishing techniques have significantly improved. Also, for fishermen, the greatest expanse in fishing is fuel. There are different fishermen opinions on the regulations that are needed for sustainable fishing in the Adriatic Sea, but the greatest percentage of them stated that prohibit fishing for a certain time is most affected method. There is also a strong emphasis on the need to reduce the number of fishing nets, the size of the fishing nets, prohibit trawling and implement the control of fishing licenses.