The research aimed to identify fishermen's behavior level Concerning of Reducing Losses of fish from Lake Nasser in Aswan Governorate, fishermen's behavior level Concerning of Reducing Losses of fish as a dependent variable and its relationship with some fishermen's respondents distinguished characteristics as independent variable, also to identify the role of fishery extension Concerning of Reducing Losses from point of view of the respondents. Data were collected through a personal interview questionnaire from a systematic random sample amounted to 346 respondents, representing 11.5% of the total number of 3021 respondents, using the Cochran equation. Frequencies, percentages, weighted average, and Spearman's rank correlation coefficient were used to analyze data and show the results.
The results revealed that:
43.1% of respondents were found in the low level category of reducing Losses of fish. 55.5 % of respondents were found in the moderate (middle) level category of reducing Losses of fish, while only 1.3% of them were found in the high level category. Significant relationships at 0.01&0.05 were found between the respondent's behavior concerning of reducing losses of fish from the view of the respondents and some of their personal characteristics. The results showed that the most important role of fishery extension Concerning of reducing losses of fish is need to provide ice factories close to the fishing places, and to conduct seminars and training courses for fishermen.