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2. Arapaima - Wikipedia

   en.wikipedia.org/wiki/Arapaima

   Indeed, a 2014 study found that the fish were depleted or overexploited at 93% of the sites examined and well-managed or unfished in only 7%; the fish appeared to be extirpated in 19% of these sites. [ 31 ] [ 32 ] The status of the arapaima population in the Amazon River Basin is unknown, hence it is listed on the IUCN red list as data deficient .

3. Standard weight in fish - Wikipedia

   en.wikipedia.org/wiki/Standard_weight_in_fish

   A fish of "normal" weight has a relative weight of 100 percent. The relative weight of a fish does not indicate its health on a continuous scale from 0 -100%, however. For example, Simpkins et al. found that juvenile rainbow trout with a condition index of less than 80% were at a high risk of dying. [9] Relative weight is one of several common ...

4. Condition index in fish - Wikipedia

   en.wikipedia.org/wiki/Condition_index_in_fish

   The condition index in fish is a way to measure the overall health of a fish by comparing its weight with the typical weight of other fish of the same kind and of the same length. The condition index is its actual weight divided by its expected weight, times 100%. A fish of normal weight has a condition index of 100 percent.

5. Fish measurement - Wikipedia

   en.wikipedia.org/wiki/Fish_measurement

   Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology. Overall length [ edit ]

6. Poromitra crassiceps - Wikipedia

   en.wikipedia.org/wiki/Poromitra_crassiceps

   The melanophores also cover the big scales, but these detach easily, and any predator that gets close enough, may end up with a mouthful of scales. Altogether, the absorption of light is 99.5% efficient, a fact that makes photographing this fish in its natural habitat very difficult.

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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!