Effect of cadmium stress on gill tissues of Magallana gigas after adaptation to different light conditions.

Cadmium (Cd) is a highly soluble pollutant in aquatic ecosystems that poses a significant threat to mollusks. In this study, a solar simulator with a filter was used to establish two light conditions (with and without the ultraviolet [UV] spectrum) for a light-adaptation period (120 d) in Magallana gigas. Following adaptation, Cd was introduced into seawater containing M.

Sub-acute exposure of sea urchin (Strongylocentrotus intermedius) to environmentally relevant concentrations of PFOA and GenX influences gonadal development.

Perfluorooctanoic acid (PFOA) and its substitute, hexafluoropropylene oxide dimer acid (GenX), are widely used perfluorinated compounds (PFCs) that pose significant risks to marine ecosystems. However, the specific impacts of these contaminants on marine invertebrates, particularly echinoderms, remain poorly understood. Strongylocentrotus intermedius, a globally significant benthic aquacultural species, may be potentially affected by PFCs.

Regulation of Biomineralization and Autophagy by the Stress-Sensing Transcription Factor CgRunx1 in Crassostrea gigas Under Daylight Ultraviolet B Radiation.

As human activities increase and environmental changes persist, increased ultraviolet B (UVB) radiation in aquatic ecosystems poses significant threats to aquatic life. This study, through transcriptomic analysis of the mantle tissue of Crassostrea gigas following UVB radiation exposure, identified and validated two key transcription factors, CgRunx1 and CgCBFβ. The highest expression levels of CgRunx1 and CgCBFβ in the mantle suggest their pivotal roles in this tissue.

Effects of ambient UVB light on Pacific oyster Crassostrea gigas mantle tissue based on multivariate data.

Ambient ultraviolet radiation (UVB) from solar and artificial light presents serious environmental risks to aquatic ecosystems. The Pacific oyster, Crassostrea gigas, perceives changes in the external environment primarily through its mantle tissue, which contains many nerve fibers and tentacles. Changes within the mantles can typically illustrate the injury of ambient UVB.

Polystyrene microplastics photo-aged under simulated sunlight influences gonadal development in the Pacific oyster.

Microplastics (MPs) aging in natural ecosystems are caused by solar irradiation. Photo-aged MPs in aquatic systems are a major threat to molluscs. In this study, polystyrene (PS) photo-aging was simulated using a sunlight simulator.