I keep seeing what looks like White Seaweed mixed with green seaweed in San Diego, CA. Is this bleached by the sun or salt? Can anyone help me identify it. It kinda resembles dental floss. Thanks!

In San Diego, California, the appearance of white seaweed mixed with green seaweed raises intriguing questions about marine biology and environmental factors. This phenomenon may be attributed to either sun bleaching or the impact of salt, both of which can affect the coloration of seaweed. The unique texture, reminiscent of dental floss, adds to the mystery. Engaging the community's expertise can help identify this seaweed and deepen our understanding of coastal ecosystems. Any insights or knowledge would be greatly appreciated.