Biological considerations to project 1 (descriptive surveys) /Troadec, Jean-Paul Hempel, G. PROGRAMME DE RECHERCHE STOCK SURVEILLANCE POISSON MARIN LARVE OEUF PROSPECTION ACOUSTIQUE ECHOINTEGRATION SURFACE MARINE UPWELLING RELATION PECHE ENVIRONNEMENT 1971 text https://www.documentation.ird.fr/hor/fdi:06477 fdi:06477 Troadec Jean-Paul, Hempel G.. Biological considerations to project 1 (descriptive surveys). 1971, 36-38 EN