Glyphosate-based herbicides (GBHs) are extensively used worldwide, raising concerns about their potential effect on non-target aquatic ecosystems. This study investigated the short-term physiological effects of a commercially available GBH on the seagrass Zostera marina under controlled mesocosm conditions. Z. marina individuals were exposed to three concentrations of glyphosate (0.165, 51, and 5100 mg L−1) for 4 days, and the...

Species of the genus Asparagopsis are rich in halogenated bioactive compounds, particularly bromoform. Its use as a feed additive in ruminant livestock drastically decreases the animal’s methane production, thereby reducing the industry’s environmental impact. Addressing the high demand for Asparagopsis biomass requires the understanding of the culture conditions that promote higher growth rates and bromoform content. Here we...

Global climate change, specifically the intensification of marine heatwaves, affect seagrasses. In the Ria Formosa, saturating light intensities may aggravate heatwave effects on seagrasses, particularly during low spring tides. However, the photophysiological and antioxidant responses of seagrasses to such extreme events are poorly known. Here, we evaluated the responses of Cymodocea nodosa exposed at 20 °C and 40 °C and 150...

Here, we report the first use of massive‐scale RNA ‐sequencing to explore seagrass response to CO 2 ‐driven ocean acidification ( OA ). Large‐scale gene expression changes in the seagrass Cymodocea nodosa occurred at CO 2 levels projected by the end of the century. C. nodosa transcriptome was obtained using Illumina RNA ‐Seq technology and de novo assembly, and differential gene expression was explored in plants exposed to sho...

This work represents the first contribution to (i) examine the changes in plant‐water relations of an inter‐tidal seagrass during air exposure ( Zostera noltii ), and (ii) compare the water status descriptors between inter‐tidal‐ and subtidal‐adapted species ( Cymodocea nodosa , Zostera marina ). Two different morphotypes of Z. noltii that develop in the highest and lowest inter‐tidal levels in the Portuguese lagoon of Ria For...