Ficha de avaliação EICAT
Corbicula fluminea (Muller, 1774)
MN · Baixo
Identificação e síntese
Nomenclature and linkage
The original assessment name is preserved. The accepted name and synonyms support discovery and reconciliation without overwriting the historical EICAT record.
Taxonomia registrada
Classificação canônica recuperada da integração com o GBIF. O sistema explicita os níveis que a própria resposta do GBIF não informa.
Avaliação de impactos
1. Redução no desempenho de indivíduos da biota nativa
Resposta: Sim
Mecanismos selecionados: (1) Competição,(9) Impacto químico no ecossistema,(10) Impacto físico no ecossistema
Evidências por mecanismo
U. delphinus exhibited lower growth, lower physiological condition, and higher locomotor activity at higher C. fluminea density, which may suggest that this unionid is negatively affected by C. fluminea and may be displaced to less favorable habitats.
Our results suggest an increase in mortality of A. anatina glochidia with an increase in density of C. fluminea. Two main mechanisms may possibly explain our results: 1) the high filtration capacity of C. fluminea that can contribute to the mortality of glochidia due to the mechanical damage of their fragile shells when passing by siphons and/or digestive tract of C. fluminea and 2) the high excretion capacity of C. fluminea that can lead to mortality of glochidia due to increase in ammonia concentration.
Our results suggest an increase in mortality of A. anatina glochidia with an increase in density of C. fluminea. Two main mechanisms may possibly explain our results: 1) the high filtration capacity of C. fluminea that can contribute to the mortality of glochidia due to the mechanical damage of their fragile shells when passing by siphons and/or digestive tract of C. fluminea and 2) the high excretion capacity of C. fluminea that can lead to mortality of glochidia due to increase in ammonia concentration.
Referências: Vanessa Modesto, Paulo Castro, Manuel Lopes-Lima, Carlos Antunes, Martina Ilarri, Ronaldo Sousa 2019 Potential impacts of the invasive species Corbicula fluminea on the survival of glochidia, Science of The Total Environment, Volume 673, p. 157-164, ISSN 0048-9697; Ferreira-Rodríguez, N., Sousa, R. & Pardo, I. Negative effects of Corbicula fluminea over native freshwater mussels. Hydrobiologia 810, 85–95 (2018). https://doi.org/10.1007/s10750-016-3059-1
2. Declínio no tamanho populacional de espécie nativa
Resposta: Não
3. Extinção local de população nativa
Resposta: Não
4. Reversibilidade da extinção local após remoção do táxon
Resposta: Nenhuma extinção registrada