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  2. Stand density index - Wikipedia

    en.wikipedia.org/wiki/Stand_Density_Index

    Where N = number of trees per acre D = dbh of the tree of average basal area k = a constant varying with the species When the quadratic mean diameter equals 10 inches (250 mm), the log of N equals the log of the stand density index. In equation form: log 10 SDI = -1.605(1) + k Which means that: k = log 10 SDI + 1.605

  3. Aquarium - Wikipedia

    en.wikipedia.org/wiki/Aquarium

    An aquarium (pl.: aquariums or aquaria) is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish , invertebrates , amphibians , aquatic reptiles , such as turtles , and aquatic plants .

  4. Fishkeeping - Wikipedia

    en.wikipedia.org/wiki/Fishkeeping

    An aquascaped freshwater aquarium. Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond.It is a practice that encompasses the art of maintaining one's own aquatic ecosystem, featuring a lot of variety with various water systems, all of which have their own unique features and requirements.

  5. Stocking (forestry) - Wikipedia

    en.wikipedia.org/wiki/Stocking_(forestry)

    When stocking, a tree's basal area is measured. The basal area is a cross-sectional area of the stump taken about 4.5 feet (1.4 m) above the ground. [7] The equation for calculating the basal area of trees in a stand is Basal Area = 0.005454 DBH 2, where DBH is the diameter of the tree at the aforementioned measuring height. [7]

  6. Georgia Aquarium - Wikipedia

    en.wikipedia.org/wiki/Georgia_Aquarium

    In 2018, the aquarium announced its largest expansion to date, a $100 million, 45,000-square-foot endeavor featuring a new 1-million-US-gallon (3,800,000 L) saltwater shark gallery, Sharks: Predators of the Deep, and a redesigned main entrance, planned to be completed in late Fall 2020. This new exhibit would include a variety of shark species.

  7. Vivarium - Wikipedia

    en.wikipedia.org/wiki/Vivarium

    The choice of materials depends on the desired size and weight of the entire ensemble, resistance to high humidity, the cost and the desired quality. The floor of a vivarium must have sufficient surface area for the species living inside. The height can also be important for the larger plants, climbing plants, or for tree climbing animal species.

  8. Fish stocking - Wikipedia

    en.wikipedia.org/wiki/Fish_stocking

    Fishery workers stocking a brook near Saranac Lake, New York, 1911 A CDFG aircraft performing aerial fish stocking, 1977. Fish stocking is a practice that dates back hundreds of years. According to biologist Edwin Pister, widespread trout stocking in the United States dates back to the 1800s. [2]

  9. Shark tunnel - Wikipedia

    en.wikipedia.org/wiki/Shark_tunnel

    Aquarium name Location Length of tunnel Depth of tunnel floor in aquarium Tank size Adventure Aquarium: Camden, New Jersey, United States 40 ft (12 m) 9 ft (2.7 m) 550,000 US gal (2,100,000 L) Antalya Aquarium [3] Antalya, Turkey 430 ft (131 m) 11 ft (3.7 m) 1,300,000 US gal (5,000,000 L) Aquaria KLCC [4] Kuala Lumpur, Malaysia

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