41.883, 32.892

Fishing in the Black Sea:

The purse seine is a preferred technique for capturing fish species which school, or aggregate, close to the surface: such as sardines, mackerel, anchovies, herring, certain species of tuna (schooling); and salmon soon before they swim up rivers and streams to spawn (aggregation).

The white dots surrounding the line must be fish! They jump out of the water and their scales reflect the sun.