Population dynamics of the invasive crayfish (Procambarus clarkii Girard, 1852) at two marshes with differing hydroperiodsPedro Manuel Anastácio, Ana Sofia Leitão, Maria José Boavida and Alexandra Marçal CorreiaAnn. Limnol. - Int. J. Lim., 45 4 (2009) 247-256DOI: https://doi.org/10.1051/limn/2009025