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A dark hole in our understanding of marine ecosystems and their services: perspectives from the mesopelagic community
St. John, M.A.; Borja, A.; Chust, G.; Heath, M.; Grigorov, I.; Mariani, P.; Martin, A.P.; Santos, R.S. (2016). A dark hole in our understanding of marine ecosystems and their services: perspectives from the mesopelagic community. Front. Mar. Sci. 3: 31.
In: Frontiers in Marine Science. Frontiers Media: Lausanne. e-ISSN 2296-7745, more
Peer reviewed article  

Available in  Authors 

Author keywords
    mesopelagic community; food provision; climate regulation; biodiversity;benefits Risks

Authors  Top 
  • St. John, M.A.
  • Borja, A., more
  • Chust, G.
  • Heath, M.
  • Grigorov, I.
  • Mariani, P.
  • Martin, A.P.
  • Santos, R.S.

    In the face of increasing anthropogenic pressures acting on the Earth system, urgent actions are needed to guarantee efficient resource management and sustainable development for our growing human population. Our oceans-the largest underexplored component of the Earth system-are potentially home for a large number of new resources, which can directly impact upon food security and the wellbeing of humanity. However, the extraction of these resources has repercussions for biodiversity and the oceans ability to sequester green house gases and thereby climate. In the search for "new resources" to unlock the economic potential of the global oceans, recent observations have identified a large unexploited biomass of mesopelagic fish living in the deep ocean. This biomass has recently been estimated to be 10 billion metric tons, 10 times larger than previous estimates however the real biomass is still in question. If we are able to exploit this community at sustainable levels without impacting upon biodiversity and compromising the oceans' ability to sequester carbon, we can produce more food and potentially many new nutraceutical products. However, to meet the needs of present generations without compromising the needs of future generations, we need to guarantee a sustainable exploitation of these resources. To do so requires a holistic assessment of the community and an understanding of the mechanisms controlling this biomass, its role in the preservation of biodiversity and its influence on climate as well as management tools able to weigh the costs and benefits of exploitation of this community.

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