Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Disentangling the different role of parasites and invasive species in the decline of native mussels |
| Abstract | Parasites have important negative consequences for freshwater mussels, but in the past they have been regarded as non-lethal and without any drastic impact upon mussels populations. Nonetheless, increased parasite densities impair mussel physiological conditions, which causes an increased mortality rate in mussels exposed to other stressors. A recently reported stressor is the spread of non-indigenous species (NIS), that can introduce new parasites and/or alter the dynamics of endemic parasites. To explore the interaction between biological invasions and growing parasites presence we profited of the sharp decline of the dominant native mussel (Unio elongatulus) in Lake Maggiore (Northern Italy), after the arrival of Corbicula fluminea and Sinanodonta woodiana. This study addressed whether: 1) the native species decline was determined by NIS co-introduction of own parasites; 2) introduced species triggered endemic parasite emergence; 3) habitat characteristics affect the interacting impacts of NIS and parasites. To answer these questions we evaluated: 1) the occurrence of parasites (alien/endemic) and the frequency of shared parasites in invasive and native bivalve species; 2) the prevalence and intensity of parasitic diseases in native species: a. before and after NIS arrival (task 2); b. in different habitat types and at different depths (task 3) |
| Source | 2018 Workshop - Workshop Freshwater Mollusk Health and Disease Assessment, La Crosse, Wisconsin, March 13-15, 2018 |
| Keywords | frehwater muesselsparasitesinvasive species |
| Year | 2018 |
| Type | Abstract in atti di convegno |
| Authors | Nicoletta Riccardi1, Maria Urbanska2, Wojciech Andrzejewski2, Angela Boggero1, Caterina Fioroni1, Jouni Taskinen3 |
| Text | 399077 2018 frehwater muessels parasites invasive species Disentangling the different role of parasites and invasive species in the decline of native mussels Nicoletta Riccardi1, Maria Urbanska2, Wojciech Andrzejewski2, Angela Boggero1, Caterina Fioroni1, Jouni Taskinen3 1 Institute of Ecosystem Study, National Research Council, Italy; 2 Poznan University of Life Sciences, Poland; 3 University of Jyvaskyla, Finland Postprint 2018 Workshop Workshop Freshwater Mollusk Health and Disease Assessment La Crosse, Wisconsin March 13 15, 2018 Internazionale Contributo Parasites have important negative consequences for freshwater mussels, but in the past they have been regarded as non lethal and without any drastic impact upon mussels populations. Nonetheless, increased parasite densities impair mussel physiological conditions, which causes an increased mortality rate in mussels exposed to other stressors. A recently reported stressor is the spread of non indigenous species NIS , that can introduce new parasites and/or alter the dynamics of endemic parasites. To explore the interaction between biological invasions and growing parasites presence we profited of the sharp decline of the dominant native mussel Unio elongatulus in Lake Maggiore Northern Italy , after the arrival of Corbicula fluminea and Sinanodonta woodiana. This study addressed whether 1 the native species decline was determined by NIS co introduction of own parasites; 2 introduced species triggered endemic parasite emergence; 3 habitat characteristics affect the interacting impacts of NIS and parasites. To answer these questions we evaluated 1 the occurrence of parasites alien/endemic and the frequency of shared parasites in invasive and native bivalve species; 2 the prevalence and intensity of parasitic diseases in native species a. before and after NIS arrival task 2 ; b. in different habitat types and at different depths task 3 Disentangling the different role of parasites and invasive species in the decline of native mussels. abstract FMCS_2018 program_finalREV.pdf Abstract in atti di convegno nicolettarita.riccardi RICCARDI NICOLETTA RITA |