We have undertaken the nutritional behaviour of six species of euphausiacea by study of guts contents during diel migration, throughout 24 hours. This study has been carry out during Cyaflux mission (part of the Ecomarge program) in northwestern Medit...
We have undertaken the nutritional behaviour of six species of euphausiacea by study of guts contents during diel migration, throughout 24 hours. This study has been carry out during Cyaflux mission (part of the Ecomarge program) in northwestern Mediterranean sea. In early times we have considered the trophic type and feeding rythm. Species have an omnivorous diet and may be adapted to the environmental food conditions. None is strictly phytophagous and only Stylocheiron longicorne G. O. Sars, 1883 and Stylocheiron abbreviatum G. O. Sars, 1883 have a carnivorous tendancy. It seems that there is relation between migration and feeding rythm.
RESUME: Le comportement alimentaire d'euphausiaces recueillis lors de la mission Cyaflux (dans le cadre du programme Ecomarge) en Mediterranee nord-occidentale, au cours d'un cycle de 24h a ete apprehende lors de la migration verticale de six especes par l'etude des contenus stomacaux et envisage sous la forme, dans un premier temps, du type trophique dt du rythme de nutrition. Les milieu. Neanmoins aucune ne s'est averee strictement phytophage et seules Stylocheiron longicorne G. O. Sars, 1883 et Stylocheiron abbreviatum G. O. Sars, 1883 auraient des tendances carnivores. Ⅱ semble qu'ily ait une relation entre migration et rythme nutritionnel.