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  2. Remotely operated underwater vehicle - Wikipedia

    en.wikipedia.org/wiki/Remotely_operated...

    ROV at work in an underwater oil and gas field. The ROV is using a torque wrench to adjust a valve on a subsea structure.. A remotely operated underwater vehicle (ROUV) [citation needed] or remotely operated vehicle (ROV) is a free-swimming submersible craft used to perform underwater observation, inspection and physical tasks such as valve operations, hydraulic functions and other general ...

  3. Autonomous underwater vehicle - Wikipedia

    en.wikipedia.org/wiki/Autonomous_underwater_vehicle

    Previously some systems used aluminum based semi-fuel cells, but these require substantial maintenance, require expensive refills and produce waste product that must be handled safely. An emerging trend is to combine different battery and power systems with supercapacitors .

  4. Turtle excluder device - Wikipedia

    en.wikipedia.org/wiki/Turtle_excluder_device

    [5] It is difficult to enforce TED compliance as TEDs can reduce the efficiency of the net system, resulting in a loss of some of the catch. On a per boat basis, turtles are rarely caught; in one study, only one turtle was caught per 322.5 hours in the Gulf of Mexico. [11] This creates an incentive for the trawler to cheat. The catch loss can ...

  5. Sensitive high-resolution ion microprobe - Wikipedia

    en.wikipedia.org/wiki/Sensitive_high-resolution...

    SHRIMP II at Research School of Earth Sciences, Australian National University, Australia. The sensitive high-resolution ion microprobe (also sensitive high mass-resolution ion microprobe or SHRIMP) is a large-diameter, double-focusing secondary ion mass spectrometer (SIMS) sector instrument that was produced by Australian Scientific Instruments in Canberra, Australia and now has been taken ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

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  8. Ecosphere (aquarium) - Wikipedia

    en.wikipedia.org/wiki/Ecosphere_(aquarium)

    The EcoSphere's main visual appeal is provided by tiny red-pink shrimp, Halocaridina rubra, between 1/4 and 3/8 inch (or approximately a centimeter) in length. The shrimp swim energetically around the aquarium, eat the brown bacterial and algal scum on the glass, consume the filamentous green algae which sometimes forms a globular pillow in the ...

  9. Aquaponics - Wikipedia

    en.wikipedia.org/wiki/Aquaponics

    Aquaponics is a food production system that couples aquaculture (raising aquatic animals such as fish, crayfish, snails or prawns in tanks) with hydroponics (cultivating plants in water) whereby the nutrient-rich aquaculture water is fed to hydroponically grown plants.