nekton वाक्य
उदाहरण वाक्य
मोबाइल
- The next dive ( dive 64 in a series, seventh in the Nekton series ) reached 24, 000 feet in the Nero Deep in the Mariana Trench 70 miles off Guam.
- For instance, the Nekton Pilot is a live-aboard dive ship that sails out of Fort Lauderdale, Fla ., taking 30 passengers to scuba dive and snorkel in remote Caribbean areas.
- Starting in November 1959 she took part in Operation Nekton, a series of deep dives in the Mariana Trench by Trieste, a deep-diving research bathyscaphe purchased by the Navy the previous year.
- The Navy might use schools of these robotic micro-subs, which can communicate with each other, to find downed planes on the sea floor, said Chuck Pell, Nekton's technology director.
- Nekton, on the other hand, are larger and swim at biologically high Reynolds numbers ( 10 3 to 10 9 ), where inertial flows are the rule and eddies ( vortices ) are easily shed.
- Contrast the terms plankton ( the organisms that float or drift within the water ), nekton ( the organisms that swim ( powerfully ) in the water ), and neuston ( the organisms that float on the water ).
- Bioaccumulation and bioconcentration result in buildup in the adipose tissue of successive trophic levels : zooplankton, small nekton, larger fish, etc . Anything which eats these fish also consumes the higher level of mercury the fish have accumulated.
- Many organisms, such as jellyfish and most fish, start life as larva and other tiny members of the plankton community, swimming at low Reynolds numbers, but become nekton as they grow large enough to swim at high Reynolds numbers.
- On 5 October 1959, " Trieste " departed San Diego for Guam aboard the freighter " Santa Maria " to participate in " Project Nekton ", a series of very deep dives in the Mariana Trench.
- Contrast the terms plankton ( the organisms that float or drift within the water ), nekton ( the organisms that swim, powerfully, in the water ), and benthos ( the organisms on the bottom of a body of water ).
- Oyster reef restoration projects often place the sanitized shells of dead oysters, concrete, or limestone pieces on a soft bottom to encourage oyster spat settlement . increase nutrient sequestration and dentrification rates, increase nekton biomass, and potentially increase commercial fishery value.
- "' Project Nekton "'was the codename for a series of very shallow test dives ( three of them in Apra Harbor ) and also bathyscaphe " Trieste " entering the Challenger Deep, the deepest surveyed point in the world's oceans.
- "Trieste " departed San Diego on October 5, 1959 for Guam aboard the freighter " SS Santa Mariana " to participate in " Project Nekton ", a series of very deep dives near Guam, culminating in a descent to the Mariana Trench.
- Though it was originally thought that the host to which it attaches for transport gains nothing from the relationship, research indicates that hosts also benefit, given that remoras feed on parasites ( such as copepods ) and clean sloughing epidermal tissue as well as ingesting scraps of food, feces, and small nekton and zooplankton.
- In January 1960, for example, she served as communication relay and support ship for the bathyscaphe " Trieste " in Project Nekton; she towed the bathyscaphe some 260 nautical miles ( 482 kilometers ) from Guam to the vicinity of the Challenger Deep, where, on 23 January 1960, " Trieste " descended to a record 37, 000 feet ( 11, 278 meters ).
- On dive 65 ( 8th in the Nekton series ), on January 23, 1960, " Trieste " reached the ocean floor in the Challenger Deep ( the deepest southern part of the Mariana Trench ), carrying Jacques Piccard ( son of the boat's designer Auguste Piccard ) and Lieutenant Don Walsh, USN . This was the first time a vessel, manned or unmanned, had reached the deepest point in the Earth's oceans.
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