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Through purchasing a loot box, the player acquires a seemingly random assortment of items. Loot boxes result in high revenues because instead of a one-time purchase for the desired item, users may have to buy multiple boxes. This method has also been called a form of underage gambling. Items and features available by microtransaction can range ...
In fisheries and conservation biology, the catch per unit effort (CPUE) is an indirect measure of the abundance of a target species. Changes in the catch per unit effort are inferred to signify changes to the target species' true abundance.
Mock-up image of opening a loot box in a video game. In video game terminology, a loot box (also called a loot crate or prize crate) is a consumable virtual item which can be redeemed to receive a randomised selection of further virtual items, or loot, ranging from simple customisation options for a player's avatar or character to game-changing equipment such as weapons and armour.
It has been called "the central problem of fish population dynamics" [14] and “the major problem in fisheries science". [15] Fish produce huge volumes of larvae, but the volumes are very variable and mortality is high. This makes good predictions difficult. [16] According to Daniel Pauly, [15] [17] the definitive study was made in 1999 by ...
Fishing mortality: the removal of fish from the stock due to fishing activities using any fishing gear. [1] It is denoted by (F) in fisheries models. (M) and (F) are additive instantaneous rates that sum up to (Z), the instantaneous total mortality coefficient; that is, Z=M+F. [2] These rates are usually calculated on an annual basis.
A fisheries observer is an independent specialist who serves on board commercial fishing vessels, or in fish processing plants and other platforms, and is employed by a fisheries observer program, either directly by a government agency or by a third party contractor, such as the Northwest Atlantic Fisheries Organization.
The World Wildlife Fund and the Zoological Society of London jointly issued their "Living Blue Planet Report" on 16 September 2015 which states that there was a dramatic fall of 74% in world-wide stocks of the important scombridae fish such as mackerel, tuna and bonitos between 1970 and 2010, and the global overall "population sizes of mammals ...
For some games, grinding is an integral part of the gameplay and is required if the player wants to make significant progress. In some cases, progression may be entirely negated if the player does not grind enough, for example an area necessary for the story may be locked until a certain action is repeated a certain amount of time to prove the experience of the player.