Biogeochemical cycles

[Tovar Juarez Edgar]

   Does anyone know of any recent references on:

    Biogeochemical cycles of heavy metals in coral-reef ecosystems
    Heavy Metals in Thalassia testudinium & Ulva lactuca

    Please direct responses directly to Edgar Tovar at
    tvjred at tlali.iztacala.unam.mx

    Thank you for any assistance you may be able to provide.

     Sincerely:

                  Edgar Tovar.