| tissue changes in the shore crab carcinus maenas as a result of infection by the parasitic barnacle sacculina carcini. | we studied the effect of parasitic invasion by the barnacle sacculina carcini on shore crabs carcinus maenas collected from the menai straits in north wales, uk. a significant reduction in serum protein and circulating granular, semi-granular and hyaline blood cells was observed in parasitised individuals, while serum ammonium and glucose concentrations were significantly increased. no difference in hepatopancreatic glycogen concentration was found between healthy and parasitised crabs. histolog ... | 2008 | 18714687 |