Understanding consequences and testing mitigation strategies in marine species subject to climate change and pollution PRIORITY RESEARCH GRANT CALL 2024

Pollution and anthropogenic CO2 emissions are triggering alterations on ecosystems. In summer 2019, a heatwave affected ~95% of the Mediterranean basin and in particular the North Adriatic Sea, an area already compromised by chemical pollution where several aquaculture facilities are held. According to this multiple stressors scenario, filter-feeding and sedentary organisms like bivalves are (and will be in the near future) subjected to severe pressures impacting population stocks, resulting in biodiversity loss and socio-economic impacts on aquaculture. In this context, the case of the Manila clam Ruditapes philippinarum is emblematic: in recent years this species experienced several mortality events with a consequent dramatic decrease of stock availability due to the persistence of harsh stressful environmental conditions. The PhD project will aim to provide novel strategies to ameliorate Manila clam performance under multiple stressful conditions, using innovative tools such as priming and microbiota manipulation, with the final aim to explore biodiversity conservation and sustainable aquaculture management strategies. In addition, effects of several emerging contaminants will be assessed in bivalve species (e.g. clams, mussels, oysters) through multidisciplinary approaches that will be then elaborated within a weight of evidence approach able to summarize different data into a hazard index. Overall, the PhD project will provide new data on actions/interactions of biological processes involved in responsiveness and adaptation to environmental changes.

Five publications related to the Research Topic for the candidate interview: 

  1. The importance of thermal history: costs and benefits of heat exposure in a tropical, rocky shore oyster; F. Giomi, C. Mandaglio, M. Ganmanee, G. D. Han, Y. W. Dong, G. A. Williams and G. Sara; 2016; DOI: 10.1242/jeb.128892
  2. A single heat-stress bout induces rapid and prolonged heat acclimation in the California mussel, Mytilus californianus; N. E. Moyen, R. L. Crane, G. N. Somero and M. W. Denny; 2020; DOI: 10.1098/rspb.2020.2561
  3. Transcriptomic responses reveal impaired physiological performance of the pearl oyster following repeated exposure to marine heatwaves; G. He, X. Xiong, Y. Peng, C. Yang, Y. Xu, X. Liu, et al.; 2023; DOI: 10.1111/mec.17148
  4. Assessing sediment hazard through a weight of evidence approach with bioindicator organisms: a practical model to elaborate data from sediment chemistry, bioavailability, biomarkers and ecotoxicological bioassays. Francesco Piva , Francesco Ciaprini, Fulvio Onorati, Maura Benedetti, Daniele Fattorini, Antonella Ausili, Francesco Regoli. Chemosphere. 2011 Apr;83(4):475-85. doi: 10.1016/j.chemosphere.2010.12.064.
  5. Glyphosate perturbs the gut microbiota of honey bees. Erick V. S. Motta https://orcid.org/0000-0001-9360-4353 erickvsm@utexas.edu, Kasie Raymann, and Nancy A. Moran. PNAS 115 (41) 10305-10310 https://doi.org/10.1073/pnas.1803880115

Contact person

Prof. Massimo Milan

Department of Comparative Biomedicine and Food Science (https://www.bca.unipd.it/)
University of Padova
tel.: +39-049-8279413
e-mail: massimo.milan@unipd.it