The comprehensive effects of varied photoperiods and algal abundance fluctuations on the key life history parameters of herbivorous rotifer Brachionus plicatilis.

The variation of photoperiod affects the photosynthesis of primary producer algae in the ocean, leading to fluctuations in algal abundance. The changes in photoperiod and algal abundance may have complex integrated effects on primary consumer herbivorous zooplankton. Therefore, in this study, we exposed two clones of rotifer Brachionus plicatilis to the combinations of five photoperiods (0 L: 24 D, 6 L: 18 D, 14 L: 10 D, 18 L: 6 D, and 24 L: 0 D) and three algal abundances (3 × 10, 10 × 10, and 100 × 10 cells mL) and recorded the key life history traits.

The impact of artificial light pollution at night on the life history parameters of rotifer Brachionus plicatilis with different food experiences.

Artificial light at night (ALAN) may pose threat to rotifer Brachionus plicatilis. Additionally, the food of rotifer, i.e.

Changes in life history parameters and expression of key genes of Brachionus plicatilis exposed to a combination of organic and inorganic ultraviolet filters.

The increasing use of ultraviolet filters has become an emerging contaminant on the coast, posing potential ecological risks. Rotifers are essential components of marine ecosystems, serving as an association between primary producers and higher-level consumers. These organisms frequently encounter ultraviolet filters in coastal waters.

Salinity-dependent top-down effect of rotifer Brachionus plicatilis on removing harmful alga Phaeocystis globosa.

Using appropriate zooplankton to transfer the primary productivity of harmful algae to higher trophic levels through food chain is an eco-friendly mode to remove harmful algae. To assess the top-down efficiency of rotifer removing Phaeocystis and the salinity effect, we adopted a series of salinities to carry out Phaeocystis-rotifer population dynamics and rotifer life-history experiments. Results showed that the time for rotifers to remove Phaeocystis population was the shortest when the salinity was ≤20 ‰.