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Marine biology is the scientific study of the biology of marine life, organisms that inhabit the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
A marine habitat is a habitat that supports marine life. Marine life depends in some way on the saltwater that is in the sea (the term marine comes from the Latin mare, meaning sea or ocean). A habitat is an ecological or environmental area inhabited by one or more living species. [1] The marine environment supports many kinds of these habitats ...
A marine coastal ecosystem is a marine ecosystem which occurs where the land meets the ocean. Worldwide there is about 620,000 kilometres (390,000 mi) of coastline. Coastal habitats extend to the margins of the continental shelves, occupying about 7 percent of the ocean surface area. Marine coastal ecosystems include many very different types ...
A remarkable diversity of fish spend their early life at the ocean's surface. This list includes many well-known, ecologically, and economically important species from a variety of habitats. Pelagic fish species include some anchovy, mahi-mahi, marlins, swordfish, amberjack and Atlantic mackerel.
Forward fishing news and photos to dmontifish@verizon.net or visit noflukefishing.com. This article originally appeared on The Providence Journal: Warming waters bring unwanted changes to fish and ...
Seagrass cell walls contain the same polysaccharides found in angiosperm land plants, such as cellulose [101] However, the cell walls of some seagrasses are characterised by sulfated polysaccharides, [102] [103] which is a common attribute of macroalgae from the groups of red, brown and also green algae.
Protozoans are protists that feed on organic matter such as other microorganisms or organic tissues and debris. [31] [32] Historically, the protozoa were regarded as "one-celled animals", because they often possess animal-like behaviours, such as motility and predation, and lack a cell wall, as found in plants and many algae.