El metabolismo del calcio y del magnesio en la cigala Nephrops norvegicus (L.) durante las etapas del ciclo de intermuda | Calcium and magnesium metabolism during the moult in Nephrops norvegicus (L.)

21 pages, 11 figures, 3 tables

[EN] Variations in the concentrations of calcium and magnesium in the hepatopancreas, haemolymph, gastroliths, cuticle and gills, in Nephrops norvegicus (L.) has been studied. The premoult stages in this species is characterized by a loss of both elements, their decreases from D0 to ecdysis. Concentration of Ca and Mg rapidly increases after the moult and reaches a maximum level which is achieved. Possible way of calcification from exogenus calcium (water or food) and endogenous calcium stored before moulting (gastrolith or hepatopancreas) have been discussed. The high concentration of magnesium in the haemolimph, during the postmoult period, may be due to the water absortion in the ecdysis process of A1 and A2 stages. [...] Astacus pallipes, Austrapotamobius pallipes, Cardisoma guanhumi, Gammarus pulex, Crangon vulgaris, Carcinus maenas, Procambarus clarkii, Carcer irroratus

[ES] Se estudian las variaciones de calcio y magresio en varios tejidos (caparazón, gastrolitos, hepatopáncreas, hemolinfa y branquias) de la cigala, Nephrops norvegictus (L.) Durante la premuda se observa, en general, una pérdida de ambos iores que aumenta progresivarnente desde D0, hasta el momento de la exuviación Durante ła postmuda (estados A y B), el Ca y el Mg aunentan en todos los órganos, hasta llegar ai estado de intemuda o de reposo (C). [...]

Peer Reviewed