Estimates of the mortality and the duration of the trans-Atlantic migration of European eel Anguilla anguilla leptocephali using a particle tracking model
|Author(s)||Bonhommeau Sylvain1, Le Pape O.1, Gascuel D.1, Blanke Bruno2, Treguier Anne-Marie2, Grima Nicolas2, Vermard Youen1, Castonguay M.3, Rivot E.1|
|Affiliation(s)||1 : INRA, Lab Ecol Halieut, UMR 985, F-35042 Rennes, France.
2 : UFR Sci & Techn, CNRS IFREMER IRD UBO, Lab Phys Oceans, F-29238 Brest 3, France.
3 : Fisheries & Oceans Canada, Inst Maurice Lamontagne, Mont Joli, PQ G5H 3Z4, Canada.
|Source||Journal of Fish Biology (0022-1112) (Wiley / Blackwell), 2009-06 , Vol. 74 , N. 9 , P. 1891-1914|
|WOS© Times Cited||53|
|Keyword(s)||Migration duration, Leptocephalus mortality, Lagrangian modelling|
|Abstract||Using Lagrangian simulations, based on circulation models over three different hydroclimatic periods in the last 45 years in the North Atlantic Ocean, the trans-Atlantic migration of the European eel Anguilla anguilla leptocephali was simulated via the passive drift of particles released in the spawning area. Three different behaviours were modelled: drifting at fixed depth, undergoing a vertical migration or choosing the fastest currents. Simulations included mortality hypotheses to estimate a realistic mean migration duration and relative survival of A. anguilla larvae. The mean migration duration was estimated as 21 months and the mortality rate as 3 center dot 8 per year, i.e. < 0 center dot 2% of A. anguilla larvae may typically survive the trans-Atlantic migration.|