sea weeds from Adriatic Sea

The sea weeds from Adriatic sea.

 

hi,

you may have 4 species present.
1: The broad flat 'leaf' may be the green alga Ulva lactuca
2: the wrinkled bubbly 'leaf' may be Ulva intestinalis (or might be a 'deformed' U. lactuca)
3: small hairy structure may be ?? a n other alga
4: large grass-like plant is a flowering plant, the sea grass Zostera marina

boa sorte
Brian

 

thank you Bjo