Near infrared spectroscopy: a method for the monitoring and management of the commercial exploitation of the brown mussel (Perna perna) in southeastern Brazil

Perna perna (Linnaeus, 1758) is one of the most commercialized mollusk species in Brazil. The individuals with a shell length at least 50 mm are considered to be adults and suitable for commercialization human consumption. However, lack control over size extracted mussels recurrent worrisome issue, which may compromise long-term survival natural stocks. present study evaluated potential differentiate juvenile brown from adult by using Near Infrared Spectroscopy (NIRS). A total 176 were obtained Jurujuba Vermelha beaches, both located Guanabara Bay, state Rio de Janeiro, Spectra muscle group specific part shell, specimens being separated (shell < or > mm), following current Brazilian legislation. classification muscles mussel hit rate 66.03%, while shells was 78%. two groups also distinguished efficiently when localities analyzed separately. results reflect influence environmental factors on chemical composition P. different areas, 85.71% rate. indicate that NIRS potentially effective diagnostic tool monitoring management commercial exploitation