Age and growth of the threatened pen shell Pinna rudis, Linnaeus, 1758 in a Marine Protected Areas

Age and growth of Pinna rudis were studied in Cabrera National Park MPA. To determine age and growth, the shells were processed to study the growth records across the posterior adductor muscle scar. The absolute growth of studied population was asymptotic, with a maximum longevity and length of 28-31 years and 45 cm respectively. This is the first study on age and growth determination of this protected species 0