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A fish aggregating (or aggregation) device (FAD) is a man-made object used to attract pelagic fish such as marlin, tuna and mahi-mahi (dolphin fish). They usually consist of buoys or floats tethered to the ocean floor.
Environments that are well-suited to larval to juvenile stages may differ from those favored by adults. For example, 1-2 year old Red Snapper (Lutjanus campechanus), show a much higher attraction to living in vertical artificial reef structures than older Red Snapper. By ages 6–8, adults return to muddy and sand bottom habitats, which provide ...
Artificiality often carries with it the implication of being false, counterfeit, or deceptive. The philosopher Aristotle wrote in his Rhetoric: . Naturalness is persuasive, artificiality is the contrary; for our hearers are prejudiced and think we have some design against them, as if we were mixing their wines for them.
Man-made closed ecological systems which were created to sustain human life include Biosphere 2, MELiSSA, and the BIOS-1, BIOS-2, and BIOS-3 projects. [ 4 ] Bottle gardens and aquarium ecospheres are partially or fully enclosed glass containers that are self-sustaining closed ecosystems that can be made or purchased.
The ultimate primary purpose of attractions is to attract the customer's attention so that they can come to a specific location and explore the various attractions on vacation. In the travel and tourism industry, attractions therefore play a particularly important role as this attracts tourists from all over the world. [3] [4] [5]
Geological heritage interpretation; and 3. Positive outcomes for nature and local residents Geotourism is a sister category to ecotourism. Geotourism is distinguished to be focused on abiotic nature and built environments dealing with geology and geomorphology while ecotourism is focused on the living nature dealing with ecology and living things.
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Plutonium (Pu, atomic number 94), first synthesized in 1940, is another such element. It is the element with the largest number of protons (atomic number) to occur in nature, but it does so in such tiny quantities that it is far more practical to synthesize it. Plutonium is known mainly for its use in atomic bombs and nuclear reactors. [4]