Organizers: Eric Feunteun1 & Philippe Keith2

Address: 1/ MNHN – UMR BOREA, Paris, France, & 2/ Station Marine de Dinard, MNHN – UMR BOREA, Dinard, France

Email: feunteun@mnhn.fr; keith@mnhn.fr

Lead contact: Eric Feunteun

Description: Diadromous fish are widely distributed in the Indo-Pacific region. They share common biological traits that lead them to undertake migrations from inland to marine habitats during their life cycle. Diadromy occurs mainly as (i) catadromy (growth in fresh or brackish inland waters and spawning in marine habitats) and major groups as eels (Anguillidae), Kuhliidae or Mugilidae and (ii) as amphidromy (growth and reproduction in inland fresh or brackish habitats, and larval stage at sea (Sicydiinae, Eleotridae,…). Diadromous fish are present in most inland habitats accross the entire region and they may be the only native fish species in most volcanic islands. Some species are wide spread as the giant mottled eel (A. marmorata) and the Sicydiinae Sicyoterus lagocephalus, while others are endemic, which opens to phylogeographical considerations. The ecology and biology, mainly during their marine stages, of most species remain widely unknown despite recent scientific progress. The marine larval stages, including leptocephali of anguilliforms represent the key to dispersion mechanisms of diadromous fish. There is also a strong management issue because diadromous species are often threatened or of unknown status while they are of fundamental importance for human societies, both as food resources and from the cultural point of view. The symposium will be organized thanks to a scientific committee that is currently been formed to have a wide international and disciplinary representation.

Expected Audience: We are expecting a very broad audience from France, Japan, Australia, Taiwan, USA, New Zealand, Fiji, Indonesia and many countries of the Indo-Pacific region.