3/1/2024 0 Comments Guso seaweed salad![]() ![]() In recent years, seaweed farming has become a global agricultural practice, providing food, source material for various chemical uses (such as carrageenan), cattle feeds and fertilizers. Humans have a long history of cultivating seaweeds for their uses. Other forces also threaten some seaweed ecosystems a wasting disease in predators of purple urchins has led to an urchin population surge which destroyed large kelp forest regions off the coast of California. For example, mechanical dredging of kelp destroys the resource and dependent fisheries. ![]() Natural seaweed ecosystems are sometimes under threat from human activity. Seaweed species such as kelps provide essential nursery habitat for fisheries and other marine species and thus protect food sources other species, such as planktonic algae, play a vital role in capturing carbon, producing at least 50% of Earth's oxygen. The term includes some types of Rhodophyta (red), Phaeophyta (brown) and Chlorophyta (green) macroalgae. Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. Seaweeds can be found in the following groupsĪscophyllum nodosum exposed to the sun in Nova Scotia, Canada Dead man's fingers ( Codium fragile) off the Massachusetts coast in the United States The top of a kelp forest in Otago, New Zealand Informal group of macroscopic marine algae
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