Impact of temperature on Downs herring (Clupea harengus) embryonic stages: First insights from an experimental approach.

ABSTRACT: Among all human-induced pressures, ocean warming is expected to be one of the major drivers of change in marine ecosystems. Fish species are particularly vulnerable during embryogenesis. Here, the impact of temperature was assessed on embryonic stages of Atlantic herring (Clupea harengus), a species of high socio-economic interest, with a particular focus on the under-studied eastern English Channel winter-spawning component (Downs herring). Key traits linked to growth and development were experimentally evaluated at three temperatures (8°C, 10°C and 14°C), from fertilization to hatching, in standardized controlled conditions. Overall negative impacts of increased temperature were observed on fertilization rate, mean egg diameter at eyed stage, hatching rate and yolk sac volume. A faster d

SUBMITTER: Toomey L 

PROVIDER: S-EPMC10081806 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature