Long-term monitoring on the occurrence of a myxosporean parasite Kudoa camarguensis (Myxosporean) on the common goby (Teleostei, Pisces) Pomatoschistus microps
Pampoulie, C.; Marques, A.; Rosecchi, E.; Bouchereau, J.L.; Crivelli, A.J. (2001). Long-term monitoring on the occurrence of a myxosporean parasite Kudoa camarguensis (Myxosporean) on the common goby (Teleostei, Pisces) Pomatoschistus microps. Dis. Aquat. Org. 45(1): 69-71. dx.doi.org/10.3354/dao045069
In: Diseases of Aquatic Organisms. Inter Research: Oldendorf/Luhe. ISSN 0177-5103; e-ISSN 1616-1580
The evolution of a host-parasite system composed of Pomatoschistus microps-Kudoa camarguensis was investigated in the Vaccares lagoon (Rhone river Delta, France) from 1993 to 1997. During this long-term monitoring, centennial flooding of the Rhone river occurred, leading to an inrush of about 110 million m3 of freshwater in the Vaccares lagoon. The salinity drastically dropped from 14 to 5 g l-1 in 1 Wk. We observed that the annual prevalence and abundance of the myxosporean parasite decreased from 12.18 in 1993 to 3.7% in 1997 and from 1.10 in 1993 to 0.27 in 1997, respectively. Here, we discuss the possible reasons for the rapid decline of this host-parasite system following the flood.
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