Crude Oil Exposure During Gametogenesis in the Batch-Spawning Atlantic Cod (Gadus morhua): Effects on Gametes and Maternally Exposed Offspring Development.

ABSTRACT: Crude oil and its water-soluble fractions (WSF) are highly toxic to early life stages of fishes, while exposed adults are often considered more resilient. However, research suggests that parental exposure can result in toxic effects in subsequent generations. This study investigated the impact of a crude oil WSF on Atlantic cod (Gadus morhua) broodstock and the subsequent maternal effects on their offspring. Mature Atlantic cod at late gametogenesis were exposed for 20 days to either a crude oil WSF or to control conditions. Over the following month, fish from both groups were repeatedly strip-spawned, and egg batches were fertilized in vitro using pooled sperm from control males. Maternally exposed offspring had accumulated levels of petroleum-derived aromatic hydrocarbons, including mono

SUBMITTER: Erhart C 

PROVIDER: S-EPMC12795962 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature