Fish and various parts of their anatomies are measured for data used in many areas of ichthyology, including taxonomy and fishery biology. == 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.
Fish and various parts of their anatomies are measured for data used in many areas of ichthyology, including taxonomy and fishery biology. == 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.
Source: Wikipedia "Fish measurement" · CC BY-SA 4.0
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