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2. Standard weight in fish - Wikipedia

   en.wikipedia.org/wiki/Standard_weight_in_fish

   Standard weight equation for largemouth bass [1] and burbot [2] (fish). Standard weight in fish is the typical or expected weight at a given total length for a specific species of fish. Most standard weight equations are for freshwater fish species. Weight-length curves are developed by weighing and measuring samples of fish from the population.

3. Condition index in fish - Wikipedia

   en.wikipedia.org/wiki/Condition_index_in_fish

   Weight vs. Length for Red Drum (data from Jenkins 2004) The reference weight-length formula is used to calculate how much the individual fish would be expected to weigh based on its measured length. Then the condition index is the actual weight of the fish divided by its expected weight, times 100%.

4. Fish measurement - Wikipedia

   en.wikipedia.org/wiki/Fish_measurement

   This measurement excludes the length of the caudal (tail) fin. [1] Total and fork length of a fish. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve ...

5. Pacific halibut - Wikipedia

   en.wikipedia.org/wiki/Pacific_halibut

   The relationship between total length (L, in inches) and total weight (W, in pounds) for nearly all species of fish can be expressed by an equation of the form: = Invariably, b is close to 3.0 for all species, and c is a constant that varies between species. [ 7 ]

6. Northern pike - Wikipedia

   en.wikipedia.org/wiki/Northern_pike

   For northern pike, b = 3.096 and c = 0.000180 (c = 7.089 enables one to put length in meters and weight in kilograms). [11] The relationship described in this section suggests a 50-centimetre (20 in) northern pike will weigh about 0.9 kg (2 lb), while a 65-centimetre (26 in) northern pike will weigh about 1.8 kg (4 lb).

7. Black drum - Wikipedia

   en.wikipedia.org/wiki/Black_drum

   Weight vs. length for black drum based on data from the Calcasieu Estuary, Louisiana. (Fall female curve is obscured by the spring female curve. Data are from Jenkins, 2004) Length vs. age for black drum from two Gulf Coast locations. Annual growth rate for ages 1–3 is 100–150 mm/year and then slows to 10–50 mm/year for ages 10–20. [10]

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9. Age determination in fish - Wikipedia

   en.wikipedia.org/wiki/Age_determination_in_fish

   Fish ages are often examined along with measurements of length and weight which combined can provide information on stock composition, age at maturity, life span, mortality, and production. Other purposes of performing age structure analysis are growth analysis, population dynamics estimates and resource management.