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Basic Knowledge of Recording and Measuring Fishes

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  • Basic Knowledge of Recording and Measuring Fishes

    For those who want to record and measure their catches, here are some guides that you may want to practise;

    when post your catch, please indicate the following:

    Name or breed of fish : Toman
    Date/time : 07.03.2011 / 0800hrs
    Zone : North East of Singapore
    Weight : 3kg
    Length (TL) : 65 cm

    Please take note that there are 3 types of methodologies measuring the length of the fishes;

    1) Total Length (TL) - This measurement taken into the account of measuring from the snout or the longest jaw of the fish to the end of the tail tip. This is more for measuring rounded tail fishes, exceptional for sharks and rays.

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    2) Standard Length (SL) - This measuring starts from the snout or the longest jaw of the fish to the last vertebar (bone) at the Caudal Peduncle. This is to solve the issue of measuring round and cross tail fishes.

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    3) Fork Length (FL) - This is introduced in 1991 in Calfornia to solve the confusion of whether to use Standard Length or Total Length as the Main method of measuring the fishes. Fork Length method is measuring the snout or the longest jaw of the fish to the split begin of the tail.

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    Toady, anglers mainly use FL to measure fishes that has cross tail or split tail over the SL method. FL method is more actual and easier to measure than SL, sometime it is hard to determin where is the last vertebra of the fish. And TL is still use to measure fishes with rounded tail.
    Last edited by vanduka; 07-03-2011, 03:33 PM.
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