Life cycle and population dynamics of the Asian clam Corbicula fluminea (Bivalvia: Corbiculidae) in the Rhône River at Creys-Malville (France)

Longitudinal and temporal variations of density and size structure of Corbicula fluminea (Bivalvia) populations in the Saône and Rhône rivers (France)

“…On the contrary, at the other sites, where the production of phytoplankton remained low for still unknown reasons (possibly the presence of photosynthesis inhibiting substances (metals, HAPs, pesticides, etc.) and (or) the instantaneous consumption of phytoplankton (Fruget & Persat 2000)), the numbers of juveniles were very low and sometimes nil, although many larvae were present from June to September in the internal branchiae of the adults (Mouthon, 2001a). Nonetheless, in spite of these unfavourable trophic conditions, the numbers of Corbicula did not fall dramatically downstream of Port/S during the four years concerned.…”

“…At Creys-Malville, the life cycle of Corbicula fluminea was subjected to in-depth study (Mouthon 2001b). The presence of 5 cohorts was observed at the beginning of autumn 1999, 4 in 1997 and 1998 and only 3 in 2000 (Fig.…”

“…5) was only possible in rare cases, such as at Ouroux. At Lyon, where Corbicula have been studied since September 1996, the proposed succession of cohorts was established on the basis of monthly surveys (Mouthon, 2001a).…”

Lithoglyphus naticoides (Pfeiffer) (Gastropoda: Prosobranchia): distribution in France, population dynamics and life cycle in the Saône river at Lyon (France)

“…during the whole study period (for more details see Mouthon 2001Mouthon , 2004 and data available at http://rdb.eaurmc.fr).…”

Response of bivalve populations to drying disturbance and life history traits of twoPisidiumspecies (Bivalvia: Sphaeriidae) in a reservoir of the French Upper Rhone river

“…They are of good quality regarding organic, oxidizable, phosphorated and nitrated materials. The sediment of the reservoir is composed of silt (fraction 2-50 mm= 57% of total dry weight) and fine sand (fraction 50-200 mm= 36.5% of total dry weight) (Mouthon, 2001). Sediment quality is good for organic micropollutants and pesticides, average for PAH (polycyclic aromatic hydrocarbons), and heavy metals (Cd, Cr, Ni).…”