Study of sub-Antarctic limpets metabolism to improve the resource sustainability

PUNTARULO S; MALANGA G; GONZÁLEZ PM

International Journal of Environment and Health

Inderscience Publishers

Lugar: London; Año: 2017 vol. 8 p. 302 - 315

1743-4955

Exploitation of benthonic resources is an important fraction within the craft catch. The main objective of this work was to obtain information on the oxidative condition and tissue damage in gills of the limpets Nacella deaurata and N. magellanica with subtidal and intertidal natural habitats, respectively. No significant differences were observed between both species in the carbohydrates, lipids, proteins and ashes content. Ascorbyl radical and lipid radical content was higher in N. deaurata compared to N. magellanica (224% and 3.5-fold respectively). However, catalase and superoxide dismutase activities were significantly higher in N. magellanica than in N. deaurata. hese data suggested hat in the intertidal species, which is exposed to extreme conditions, antioxidant activity is responsiblefor preventing lipid damage. Thus, organoleptic characteristics are improved, and conservation and handling stress could be prevented in intertidal compared to subtidal species. These studies would contribute to the sustainable management of valuable native species