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Sea foam washed up or blown onto a beach. Sea foam, ocean foam, beach foam, or spume is a type of foam created by the agitation of seawater, particularly when it contains higher concentrations of dissolved organic matter (including proteins, lignins, and lipids) derived from sources such as the offshore breakdown of algal blooms. [1]
This kills off marine life or forces it to leave the area, removing life from the area and giving it the name dead zone. Hypoxic zones or dead zones can occur naturally, but nutrient pollution from human activity has turned this natural process into an environmental problem. [29] There are five main sources of nutrient pollution.
Ecologists are increasingly recognizing the important effects that cross-ecosystem transport of energy and nutrients have on plant and animal populations and communities. [ 68 ] [ 69 ] A well known example of this is how seabirds concentrate marine-derived nutrients on breeding islands in the form of feces (guano) which contains ~15–20% ...
A May 2018 study published in PNAS found that 83% of wild mammals, 80% of marine mammals, 50% of plants and 15% of fish have been lost since the dawn of human civilization. Currently, livestock make up 60% of the biomass of all mammals on earth, followed by humans (36%) and wild mammals (4%). [ 29 ]
The soft, white, earthy mineral from Långbanshyttan, in Värmland, Sweden, known as aphrodite (Greek: sea foam), is closely related to sepiolite. [7] [23] In construction, sepiolite can be used in lime mortars as water reservoir. [24] Processes for bacterial transformation based on the Yoshida effect can utilize sepiolite as an acicular ...
Foam lines are accumulations of foam, with trapped insects, exuvia, etc. found on the surface of freshwater water courses or bodies. [1] Lines appear as individual islands of foam that accumulate against obstructions, shorelines, etc. [ 2 ] Foam lines have some characteristics in common with sea foam from the marine environment which may form ...
Biofouling, especially of ships, has been a problem for as long as humans have been sailing the oceans. [ 31 ] The earliest attestations of attempts to counter fouling, and thus also the earliest attestation of knowledge if it, is the use of pitch and copper plating as anti-fouling solutions that were attributed to ancient seafaring nations ...
While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm.. Marine pollution occurs when substances used or spread by humans, such as industrial, agricultural and residential waste, particles, noise, excess carbon dioxide or invasive organisms enter the ocean and cause harmful effects there.