Biological rhythms in the Norway lobster (Nephrops Norvegicus L.): Ecological modulation and genetic basis = Ritmos biológicos en la cigala (Nephrops norvegicus L.) : modulación ecológica y bases genéticas

• Autores: Valerio Sbragaglia
• Directores de la Tesis: Jacopo Aguzzi (dir. tes.), José A. Jiménez (dir. tes.), Agustín Sánchez-Arcilla Conejo (dir. tes.)
• Lectura: En la Universitat Politècnica de Catalunya (UPC) ( España ) en 2015
• Idioma: español
• Tribunal Calificador de la Tesis: Trinitat Cambras Riu (presid.), Manuel Espino Infantes (secret.), Cristiano Bertolucci (voc.)
• Materias:
  • Ciencias de la vida
    • Biología animal (zoología)
      • Citología animal
      • Genética animal
    • Biología vegetal (botánica)
      • Botánica marina
• Enlaces
  • Tesis en acceso abierto en: TDX
• Resumen

  • Nephrops norvegicus is an important fishery resource for Europe. Its rhythmic burrowing behavior is strictly related to catchability. Here I studied such behavior under laboratory conditions. I investigated the combined effect of light and current cycles demonstrating that tidal current is an important parameter to take in account in fishery management plan not only for Nephrops. Then I used a transcriptomics and RT-qPCR approach on cDNA extracted from the eyestalk to elucidate the putative molecular genetics mechanisms underlying circadian gene regulation. My data are in accordance with the current knowledge of the crustacean circadian clock, reinforcing the idea that the molecular clockwork of this group shows some differences with the established model in Drosophila melanogaster. Finally, I studied the burrow emergence behavior in group of 4 lobsters organized in dominance hierarchy demonstrating that lower ranks are more vulnerable to trawling. I hypothesized common neural mechanisms for agonistic and non-agonistic behaviors.