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Overall length. Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. 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 ...
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 ...
A similar fork with the same name, intended for serving, has three to four tines and is longer at 8 to 10 inches. [3] To distinguish the eating fork from the serving one, the former was sometimes labeled as "individual". [4] Fish forks are used just as normal forks are [5] and can be replaced by a long (7–8 inches (18–20 cm) in length) or ...
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.
It has no scales, except on the lateral line and the corselet (a band of large, thick scales forming a circle around the body behind the head). It commonly reaches fork lengths up to 80 cm (2 ft 7 in) and a mass of 8–10 kg (18–22 lb). Its maximum fork length is 108 cm (3 ft 7 in), and its maximum mass is 34.5 kg (76 lb).
The inspection allegedly uncovered a bluefin tuna with a curved fork length that measured 90 inches. The season for bluefin tuna that have a curved fork length of 73 inches or greater was closed.
Some fish may reach a length of 100 cm (39 in) or more, but most commonly they are around 64 cm (25 in). The largest little tunny on record is 120 cm (47 in) and 17 kg (37 lb). [13] Females reach sexual maturity at 27 to 37 cm (11–15 in) in fork length, while males mature at about 40 cm (16 in). [6]
Meristics – A series of measurements on a fish, such as scale counts, which are used to separate different populations or races of fish. Mesopelagic – ocean depths extending from 200 to 1000 metres (650 to 3280 feet) below sea level; Migration – a systematic (as opposed to random) movement of individuals in a fish stock from one place to ...
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