Place mussels in the deep pan, pour the wine, salt and cook under a cover for 10 minutes. Pull out clams, throw away unopened shells. Wash and slice all fish fillets , sprinkle with lemon juice. Fry soup greens, chopped onion in the vegetable oil. Strain mussel water in the broth, add fried vegetables, tomato paste, curry and paprika, cook for 10 minutes. Add fish and cook for another 15 minutes, add crab meat( or shrimps) and mussels, boil for another 2 minutes. Season with salt and serve with slice of lemon.