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Article Dans Une Revue Scientific Reports Année : 2019

Tracking a mass mortality outbreak of pen shell Pinna nobilis populations: A collaborative effort of scientists and citizens

Miguel Cabanellas-Reboredo
  • Fonction : Auteur
Maite Vázquez-Luis
  • Fonction : Auteur
Elvira Álvarez
  • Fonction : Auteur
Piero Addis
  • Fonction : Auteur
Agustín Barrajón
  • Fonction : Auteur
Stefania Coppa
  • Fonction : Auteur
José Rafael García-March
  • Fonction : Auteur
Salvatore Giacobbe
  • Fonction : Auteur
Francisca Giménez Casalduero
  • Fonction : Auteur
Louis Hadjioannou
  • Fonction : Auteur
Santiago Jiménez-Gutiérrez
  • Fonction : Auteur
Diego Kersting
  • Fonction : Auteur
Borut Mavrič
  • Fonction : Auteur
Francesco Paolo Patti
  • Fonction : Auteur
José Tena-Medialdea
  • Fonction : Auteur
Jean de Vaugelas
  • Fonction : Auteur
Fatima Zohra Belkhamssa
  • Fonction : Auteur
Ivan Zupan
  • Fonction : Auteur

Résumé

A mass mortality event is devastating the populations of the endemic bivalve Pinna nobilis in the Mediterranean Sea from early autumn 2016. A newly described Haplosporidian endoparasite (Haplosporidium pinnae) is the most probable cause of this ecological catastrophe placing one of the largest bivalves of the world on the brink of extinction. As a pivotal step towards Pinna nobilis conservation, this contribution combines scientists and citizens’ data to address the fast- and vast-dispersion and prevalence outbreaks of the pathogen. Therefore, the potential role of currents on parasite expansion was addressed by means of drift simulations of virtual particles in a high-resolution regional currents model. A generalized additive model was implemented to test if environmental factors could modulate the infection of Pinna nobilis populations. The results strongly suggest that the parasite has probably dispersed regionally by surface currents, and that the disease expression seems to be closely related to temperatures above 13.5 °C and to a salinity range between 36.5–39.7 psu. The most likely spread of the disease along the Mediterranean basin associated with scattered survival spots and very few survivors (potentially resistant individuals), point to a challenging scenario for conservation of the emblematic Pinna nobilis, which will require fast and strategic management measures and should make use of the essential role citizen science projects can play.
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hal-02303429 , version 1 (03-07-2024)

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Miguel Cabanellas-Reboredo, Maite Vázquez-Luis, Baptiste Mourre, Elvira Álvarez, Salud Deudero, et al.. Tracking a mass mortality outbreak of pen shell Pinna nobilis populations: A collaborative effort of scientists and citizens. Scientific Reports, 2019, 9, pp.1-11/13355. ⟨10.1038/s41598-019-49808-4⟩. ⟨hal-02303429⟩
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