Reproductive trade-offs of the estuarine copepod Eurytemora affinis under different thermal and haline regimes.

ABSTRACT: Copepod females invest a quantity of resources in their reproduction. Depending on several biotic and abiotic factors and their evolutionary history a trade-off can be commonly observed between producing a large number of smaller offspring or a small number of larger offspring. In this study, a multi-generational approach was applied to determine whether a trade-off between clutch size and egg size existed in the copepod Eurytemora affinis under different controlled conditions of temperature and salinity. This protocol was based on the follow-up of reproductive (Clutch Size 'CS', Egg Diameter 'ED') and morphological (Prosome Length 'PL') traits during several generations. Copepods were acclimated to cold (7 °C) and warm (20 °C) temperatures, and then their reproductive output was tested at

SUBMITTER: Souissi A 

PROVIDER: S-EPMC8505402 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature