Recruitment Disruption and the Role of Unaffected Populations for Potential Recovery After the Pinna nobilis Mass Mortality Event

A devastating mass mortality event (MME) very likely caused by the protozoan Haplosporidium pinnae first detected in 2016 in the Western Mediterranean Sea, is pushing the endemic bivalve Pinna nobilis to near extinction. Populations recovery, if possible, will rely on larval dispersal from unaffecte...

Descripción completa

Detalles Bibliográficos
Autores: Kersting, D. K., Vázquez-Luis, Maite, Mourre, Baptiste, Belkhamssa, F. Z., Álvarez, Elvira, Bakran-Petricioli, Tatjana, Barberá, Carmen, Barrajón, Agustín, Cortés, Emilio, Deudero, Salud, García-March, José Rafael, Giacobbe, Salvatore, Giménez Casalduero, F., González, Luis Mariano, Jiménez-Gutiérrez, Santiago, Kipson, Silvija, Llorente, Javier, Moreno, Diego, Prado, Patricia, Pujol, Juan A., Sánchez, Jordi, Spinelli, Andrea, Valencia, José María, Vicente, Nardo, Hendriks, Iris E.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/238622
Acceso en línea:http://hdl.handle.net/10261/238622
Access Level:acceso abierto
Palabra clave:Critically endangered
Mass mortality
Recruitment
Larval connectivity
Mediterranean Sea
Hydrodynamic model
Lagrangian trajectories
Recovery
Descripción
Sumario:A devastating mass mortality event (MME) very likely caused by the protozoan Haplosporidium pinnae first detected in 2016 in the Western Mediterranean Sea, is pushing the endemic bivalve Pinna nobilis to near extinction. Populations recovery, if possible, will rely on larval dispersal from unaffected sites and potential recolonization through recruitment of resistant juveniles. To assess the impact of the MME on the species’ larval recruitment, an unprecedented network of larval collector stations was implemented over several thousands of kilometers along the Western Mediterranean coasts during the 3 years after the onset of the MME. The findings of this network showed a generalized disruption in recruitment with dramatic consequences for the recovery of the species. However, there were exceptions to this pattern and recruits were recorded in a few sites where the resident population had been decimated. This hints to the importance of unaffected populations as larval exporting sources and the role of oceanographic currents in larval transport in the area, representing a beacon of hope in the current extremely worrying scenario for this emblematic species.

Similares en LA Referencia