( 04.02 MC ) Which of the following is an abiotic factor that is having a negative impact on marine populations? O Loss of seagrass beds O Predation by invasive species OThe presence of algae blooms The lack of oxygen in coastal waters

The presence of algae blooms can create significant problems for marine life. When nutrients from agriculture runoff and wastewater lead to excessive algal growth, oxygen levels in the water can plummet as the algae die off and decompose, resulting in dead zones that are inhospitable for most marine creatures. This can lead to massive fish kills and a decline in biodiversity. On the other hand, the lack of oxygen in coastal waters, often tied to these algae blooms, poses a severe threat. Marine species, including fish and shellfish, require oxygen to survive; when oxygen levels fall, they can suffer from hypoxia, leading to stress, decreased reproduction rates, and even death. Fostering healthy ecosystems involves managing nutrient runoff and protecting marine habitats.