| Title | Alien bivalve molluscs occurrence, population dynamics and impact: Lake Maggiore (Italy) and Danube River (Bulgaria) case studies |
| Abstract | Nowadays, the presence of alien species is a worldwide problem, especially when the presence of the new species has the character of a biological invasion which threatens biological diversity and affects ecosystem services thus causing environmental, economic and social damages. The freshwater bivalve Dreissena polymorpha is included among the 100 World's Worst Invasive Alien Species (IUCN/SSC ISSG), and Corbicula fluminea and D. polymorpha are listed among the 100 Worst Invasive Alien Species in Europe (DAISIE). Further, the Chinese Pond Mussel Anodonta woodiana and the Quagga Mussel Dreissena rostriformis bugensis are becoming globally spread in last decades, causing biodiversity and economic losses. Here we show how different environments, such as a big subalpine lake, Lake Maggiore (Northern Italy) and the second longest river in Europe, Danube River (Bulgaria), are affected by similar problems: the invasion by non-native freshwater bivalves; and how these different habitats influence the occurrence and population dynamics of the invaders. Presence-absence maps have been prepared to present the distribution of the bivalve alien species (C. fluminea, D. polymorpha, A. woodiana and D. rostriformis bugensis) in the two different freshwater bodies, Lake Maggiore and the Danube River (Bulgaria). In addition, to evaluate the potential impact of C. fluminea, which is rapidly becoming the dominant littoral species in Lake Maggiore, a field and mesocosm study of its population dynamics and reproductive cycle is presented. The results from the study of quantitative parameters and habitat characteristics of C. fluminea and other alien bivalves in the Bulgarian sector of the Danube River and its tributaries are also presented. |
| Source | XL IAD - Conference of the International Association for Danube Research "The Danube and Black Sea Region - Unique Environment and Human Well Being Under Conditions of Global Changes", Sofia, Bulgaria, 17-20 giugno 2014 |
| Keywords | Alien speciesFreshwater bivalvesCorbicula flumineaDreissena spp.Danube River basinLake Maggiore |
| Year | 2014 |
| Type | Poster |
| Authors | Teodora Trichkova; Rosaria Lauceri; Lyubomir Kenderov; Zdravko Hubenov; Vesela Evtimova; Alexander Kotsev; Irene Guarneri; Salvatore Calvaruso; Nicoletta Riccardi |
| Text | 330077 2014 Alien species Freshwater bivalves Corbicula fluminea Dreissena spp. Danube River basin Lake Maggiore Alien bivalve molluscs occurrence, population dynamics and impact Lake Maggiore Italy and Danube River Bulgaria case studies Teodora Trichkova; Rosaria Lauceri; Lyubomir Kenderov; Zdravko Hubenov; Vesela Evtimova; Alexander Kotsev; Irene Guarneri; Salvatore Calvaruso; Nicoletta Riccardi Teodora Trichkova Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences; Rosaria Lauceri CNR ISE, Pallanza Verbania; Lyubomir Kenderov National Museum of Natural History, Bulgarian Academy of Sciences; Zdravko Hubenov Biological Faculty, Sofia University; Vesela Evtimova Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences; Alexander Kotsev National Museum of Natural History, Bulgarian Academy of Sciences; Irene Guarneri CNR ISE, Pallanza Verbania; Salvatore Calvaruso CNR ISE, Pallanza Verbania; Nicoletta Riccardi CNR ISE, Pallanza Verbania Nowadays, the presence of alien species is a worldwide problem, especially when the presence of the new species has the character of a biological invasion which threatens biological diversity and affects ecosystem services thus causing environmental, economic and social damages. The freshwater bivalve Dreissena polymorpha is included among the 100 World s Worst Invasive Alien Species IUCN/SSC ISSG , and Corbicula fluminea and D. polymorpha are listed among the 100 Worst Invasive Alien Species in Europe DAISIE . Further, the Chinese Pond Mussel Anodonta woodiana and the Quagga Mussel Dreissena rostriformis bugensis are becoming globally spread in last decades, causing biodiversity and economic losses. Here we show how different environments, such as a big subalpine lake, Lake Maggiore Northern Italy and the second longest river in Europe, Danube River Bulgaria , are affected by similar problems the invasion by non native freshwater bivalves; and how these different habitats influence the occurrence and population dynamics of the invaders. Presence absence maps have been prepared to present the distribution of the bivalve alien species C. fluminea, D. polymorpha, A. woodiana and D. rostriformis bugensis in the two different freshwater bodies, Lake Maggiore and the Danube River Bulgaria . In addition, to evaluate the potential impact of C. fluminea, which is rapidly becoming the dominant littoral species in Lake Maggiore, a field and mesocosm study of its population dynamics and reproductive cycle is presented. The results from the study of quantitative parameters and habitat characteristics of C. fluminea and other alien bivalves in the Bulgarian sector of the Danube River and its tributaries are also presented. Published version XL IAD Conference of the International Association for Danube Research The Danube and Black Sea Region Unique Environment and Human Well Being Under Conditions of Global Changes Sofia, Bulgaria 17 20 giugno 2014 Nazionale Contributo Poster 2014_Poster_XL_IAD.pdf Poster rosaria.lauceri LAUCERI ROSARIA nicolettarita.riccardi RICCARDI NICOLETTA RITA TA.P04.016.004 Ecologia teorica e applicata degli ecosistemi acquatici |
