Marine Fishery Essay

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Marine ecosystems are among the largest of Earth's aquatic ecosystems. They include oceans, salt marsh and intertidal ecology, estuaries and lagoons, mangroves and coral reefs, the deep sea and the sea floor. They can be contrasted with freshwater ecosystems, which have a lower salt content. Marine waters cover two-thirds of the surface of the Earth. Such places are considered ecosystems because the plant life supports the animal life and vice-versa. See food chains. Marine ecosystems are very important for the overall health of both marine and terrestrial environments. According to the World Resource Center, coastal habitats alone account for approximately 1/3 of all marine biological productivity, and estuarine ecosystems (i.e., salt marshes, seagrasses, mangrove forests) are among the most productive regions on the planet. In addition, other marine ecosystems such as coral reefs, provide food and shelter to the highest levels of marine diversity in the world. [1] Marine ecosystems usually have a large biodiversity and are therefore thought to have a good resistance against invasive species. However, studies do not always correlate with this theory leading researchers to argue about the mechanisms responsible in determining the success of an invasion.[2] de | Marine ecosystem · f-ratio · Iron fertilization · Iron Hypothesis · Large marine ecosystem · Marine biology · Marine chemistry · Marine snow · Ocean nourishment · Oceanic physical-biological process · Ocean turbidity · Photophore · Thorson's rule · Upwelling · Whale fall · More... | | | | Marine life forms | | Census of Marine Life · Coastal fish · Coral reef fish · Deep sea communities · Deep sea creature · Deep sea fish · Deep water corals · Demersal fish · Marine bacteriophage · Marine invertebrates · Marine larval ecology · Marine mammal · Marine reptile · Marine vertebrate · Paradox of

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