The deep sea: The new frontier for ecological restoration

Z. Da Ros, Antonio Dell'Anno, T. Morato, Andrew K. Sweetman, Marina Carreiro-Silva, Chris J. Smith, N. Papadopoulou, Cinzia Corinaldesi, Silvia Bianchelli, Cristina Gambi, Roberto Cimino, Paul Snelgrove, Cindy Lee Van Dover, Roberto Danovaro

Research output: Contribution to journalArticle

Abstract

Deep-sea ecosystems are the most extensive on Earth and provide key goods and services for human well-being, such as genetic resources and climate regulation. Maintaining the sustainable functioning of the global biosphere therefore requires protection of deep-sea ecosystems, particularly because these ecosystems face major changes related to human and climate-induced impacts. Although we lack data to evaluate the spatial scale of degraded deep-sea habitats, numerous studies document human impacts on the whole ocean. However, protection alone can be insufficient to reverse habitat degradation in the deep sea. Scientifically, deep-sea restoration actions may be feasible, but whether such actions will achieve sustainability goals when applied at broad spatial scales of impact remain questionable. Successful application of most restoration efforts will first require a deeper understanding of biodiversity and functioning of deep-sea ecosystems, and better knowledge of ecosystem resilience and recovery rates of deep-sea fauna. In addition to limited data availability, expensive technologies (with estimated costs up to millions of dollars ha−1) represent a major obstacle to large-scale deep-sea restoration, but international cooperation (like a stronger collaboration between industry and scientists belonging to the academia) could significantly reduce this operational cost. Future deep-sea ecosystem restoration could offer an important business opportunity for technological development and application and an investment in natural capital for a new and competitive blue-growth sector.

Original languageEnglish
Article number103642
JournalMarine Policy
Volume108
Early online date6 Aug 2019
DOIs
Publication statusPublished - Oct 2019

Keywords

  • Biodiversity
  • Deep-sea ecosystems
  • Ecosystem functioning
  • Human impact
  • Restoration

ASJC Scopus subject areas

  • Aquatic Science
  • Environmental Science(all)
  • Economics and Econometrics
  • Management, Monitoring, Policy and Law
  • Law

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  • Cite this

    Da Ros, Z., Dell'Anno, A., Morato, T., Sweetman, A. K., Carreiro-Silva, M., Smith, C. J., Papadopoulou, N., Corinaldesi, C., Bianchelli, S., Gambi, C., Cimino, R., Snelgrove, P., Van Dover, C. L., & Danovaro, R. (2019). The deep sea: The new frontier for ecological restoration. Marine Policy, 108, [103642]. https://doi.org/10.1016/j.marpol.2019.103642