Chlorophyll
Chlorophyll on World Data Ocean: a running collection of 2 stories we have gathered and hand-picked because they are worth your time. Every post here touches on chlorophyll in some way — the news, the analysis, the deep dives, and the occasional surprise find. A Global Hub for Ocean Intelligence 4 World Data Ocean is a centralized digital platform where researchers, scientists, and ocean enthusiasts converge to explore, analyze, and… New stories are added to this page as we find them, so check back if you want to keep up with what is happening around chlorophyll, or subscribe to the RSS feed to get them as soon as they are published. Browse the collection below, or head back to the homepage to see everything World Data Ocean is covering right now.
Spatiotemporal extent of diel and episodic hypoxia in bottom water of a shallow, well-mixed estuary
Globally, declining dissolved oxygen levels represent a critical ecological challenge for coastal regions. This study investigates the spatiotemporal dynamics of hypoxia within the Banana River Lagoon, a shallow subtropical estuary, revealing its impact on fish populations and nutrient cycles. Utilizing a network of 80 monitoring stations, researchers documented significant diel and seasonal variations in bottom water oxygen concentrations, correlated with temperature, light, and sediment composition. Notably, areas near organic-rich sediments experienced more frequent daytime hypoxia.
Green ultrasound-assisted extraction of pigments from Mexican Caribbean Sargassum
The escalating accumulation of *Sargassum* spp. along Caribbean coastlines presents both an environmental and economic challenge. These macroalgae contain valuable pigments—including fucoxanthin—exhibiting antioxidant and anti-inflammatory properties. This study investigates ultrasound-assisted extraction (UAE) utilizing hydroethanolic mixtures as a sustainable alternative to conventional, solvent-intensive methods. Results demonstrate optimized pigment recovery—specifically, 26.64 mg g⁻¹ dw fucoxanthin—achieved with 70% ethanol at 60°C, supporting a scalable strategy for *Sargassum* valorization.