ɪɾ ɪz kəlˈɛktᵻd fɹʌmðə sˈɜːf zˈoʊn ɪnðə nˈɔːɹðɚn pˌoːɹtʃəɡˈiːz bˈiːtʃᵻz, ænd ɪz ˈɔːlsoʊ jˈuːzd ɪnðɪ ˈæɡɹɪkˌʌltʃɚ.
It is collected from the surf zone in the northern Portuguese beaches, and is also used in the agriculture.