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As primary consumers, zooplankton are the crucial link between the primary producers (mainly phytoplankton) and the rest of the marine food web (secondary consumers); [191] the ocean's primary producers are mostly tiny phytoplankton which have r-strategist traits of growing and reproducing rapidly, so a small mass can have a fast rate of ...
During tidal immersion, the food supply to intertidal organisms is subsidized by materials carried in seawater, including photosynthesizing phytoplankton and consumer zooplankton. These plankton are eaten by numerous forms of filter feeders — mussels , clams , barnacles , sea squirts , and polychaete worms—which filter seawater in their ...
Coral reefs are one of the most well-known marine ecosystems in the world, with the largest being the Great Barrier Reef. These reefs are composed of large coral colonies of a variety of species living together. The corals form multiple symbiotic relationships with the organisms around them. [7]
This means primary producers become the starting point in the food chain for heterotroph organisms that do eat other organisms. Some marine primary producers are specialised bacteria and archaea which are chemotrophs, making their own food by gathering around hydrothermal vents and cold seeps and using chemosynthesis.
In coral reefs and lagoons, producers include phytoplankton, as well as seaweed and coralline algae, especially small types called turf algae, which pass nutrients to corals. [104] The phytoplankton form the base of the food chain and are eaten by fish and crustaceans. Recycling reduces the nutrient inputs needed overall to support the ...
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Oceana focuses on curbing or eliminating the use of plastics, especially single use plastics due to their harmful impact on marine ecosystem and on human consumers. The organization generally opposes focusing on recycling or cleanup, and it says this is due to inefficiencies of recycling the large amounts of plastics in the ocean.
TEGUCIGALPA (Reuters) -Slow-moving Tropical Depression Sara headed on to Mexico's Yucatan Peninsula after unleashing widespread floods over Honduras and Belize that killed at least one person and ...