Ontogenetic shift or not? Different foraging trade-offs within the meso- to bathypelagic fish community.

ABSTRACT: During ontogeny, the increase in body size forces species to make trade-offs between their food requirements, the conditions necessary for growth and reproduction as well as the avoidance of predators. Ontogenetic changes are leading species to seek out habitats and food resources that meet their needs. To this end, ontogenetic changes in nocturnal habitat (vertical use of the water column) and in the type of food resources (based on stable isotopes of nitrogen) were investigated in 12 species of deep pelagic fish from the Bay of Biscay in the Northeast Atlantic. Our results revealed the existence of major differences in the ontogenetic strategies employed by deep pelagic fishes. Some species showed ontogenetic changes in both vertical habitat use and food resources (e.g. Jewel lanternfish

SUBMITTER: Loutrage L 

PROVIDER: S-EPMC10954512 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature