دراسة اقتصادية و اجتماعية لأثر التغيرات المناخية على الإنتاج السمكي من بحيرة البردويل في محافظة شمال سيناء

الملخص EN

The research aimed to try to reach the effects of climate change on the fish production of Lake Bardwell and the extent of the economic and social impact of fishermen with this phenomenon, by studying the current situation of fish production in Lake Bardwell and the extent to which the fishermen are aware of climate changes and their impact on living through the following social and economic indicators: the level of income and tunnels, the degree of impact of the standard of living of fishermen, and the degree of spatial stability in the research area.

The most important results were: - There is a correlation between the quantities of fish production and climatic factors in Lake Bardwell represented by relative humidity, followed by the average daily temperature, followed by the minimum temperature.

- The development of total fish production of the lake has taken on a statistically declining overall trend of about 12.74 tons per year, with an estimated annual decrease of about 0.36% of the average lake production of about 3,490 tons during the study period (2000-2018).

- By measuring the degree of development in favour of (Lake Bardwell fish production) it was shown to decrease from 1.4 in 2000/04 to (-1.02) in 2008/12 and then to increase the decrease of about (-11) for the period 2012/18, which means that the development of Lake Bardwell is moving away from vital images of total fish production from lakes.

- The results also indicated that more than 87.3% of respondents fall into the low-to-medium level of perception, indicating a very low level of awareness of climate change.

- The results with regard to the income and tunnel scoring index also showed that more than 76.7% of respondents fall into the category of medium to high impact, the overall average to the extent that the standard of living is affected by climate change is 79.5%, and the overall average to the extent that the spatial stability of research fishermen is affected by climate change is 51.8%.

The study reached some recommendations, including: maintaining fish stocks for the development of seed production by adding a seed of high-yield fish by managing the lake to increase the fish production of the lake and reduce environmental pollution in all its forms, attention to scientific research and scientific innovations in the field of education, nutrition and reproduction in order to preserve the natural resources of fish, building the capacity of workers and fishermen in Lake Bardwell.