RT journal article
T1 Large Mesopelagic Fishes Biomass and Trophic Efficiency in the Open Ocean
A1 Irigoien, Xabier
A1 Klevjer, T.A.
A1 Røstad, A.
A1 Martinez, U.
A1 Boyra, G.
A1 Acuña, J.L.
A1 Bode, A.
A1 Echevarría Navas, Fidel María
A1 González Gordillo, Juan Ignacio
A1 Hernandez Leon, S.
A1 Agustí, S.
A1 Aksnes, D.L.
A1 Duarte, C.M.
A1 Kaartvedt, S.
A2 Biología
K1 fish biomass
K1 mesopelagic fishes
K1 acoustic profile
AB With a current estimate of B1,000 million tons, mesopelagic fishes likely dominate theworld total fishes biomass. However, recent acoustic observations show that mesopelagicfishes biomass could be significantly larger than the current estimate. Here we combinemodelling and a sensitivity analysis of the acoustic observations from the Malaspina 2010Circumnavigation Expedition to show that the previous estimate needs to be revised to atleast one order of magnitude higher. We show that there is a close relationship between theopen ocean fishes biomass and primary production, and that the energy transfer efficiencyfrom phytoplankton to mesopelagic fishes in the open ocean is higher than what is typicallyassumed. Our results indicate that the role of mesopelagic fishes in oceanic ecosystems andglobal ocean biogeochemical cycles needs to be revised as they may be respiring B10% ofthe primary production in deep waters
YR 2014
FD 2014-01-01T00:00:00Z
LK http://hdl.handle.net/10498/16691
UL http://hdl.handle.net/10498/16691
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026