3. Fish Weight Calculator by Length for Southern Africa. Square girth and multiply by length - Divide by 800 Example: Girth = 40" - squared = 1600 Length = 100" Multiply girth squared x length (1600 x 100 = 16000) divide by 800 for a weight of 200lbs. Length To Weight. Pike have a shape factor of 900. Easy! The formula to calculate the weight for a Walleye that is 20 inches long and has a girth of 12 inches is as follows. Select the species closest to the fish you caught. We facilitate and provide opportunity for all citizens to use, enjoy, and learn about these resources. The LENGTH-WEIGHT table presents the a and b values of over 5,000 length-weight relationships of the form W = a × L b , pertaining to about over 2,000 fish species. When measuring girth, measure at the widest part of the fishes body. * Click Reset first if you wish to calculate additional weights. We protect and manage the fish, forest, and wildlife of the state. 14th Aug, 2017. STURGEON LENGTH / WEIGHT. UK sea fish Length to weight converter - Select the fish you caught and enter its length, this will give approx weight in lb and lots of fishy facts. The formula to calculate the weight for a Northern Pike that is 40 inches long and has a girth of 22 inches is as follows. Fish species include Bass, Halibut, Tope, Smoothhound, Cod, Conger eel, Pollack, Thornback Ray and many more fish. 216 Summer School on Advanced Methods for Fish Stock Assessment and Fisheries Management Summer School on Advanced Methods for Fish Stock Assessment and Fisheries Management 217 Estimation of length weight relationship in fishes In this equation, the parameters a and b, usually termed as length weight parameters are to be estimated with the available length-weight data. Fish Length – Weight Estimates This page provides information about fish length to weight conversions. Calculation of your fish capture by the length and girth. Yes, it is possible to get an approximate weight for many species of fish by measuring their lengths. To use the calculator, simply enter the length from the tip of the nose to the center of the tail of your fish and use the girth of the fish as measured just in front of the dorsal fin. Click the Calculate button to see the estimated weight of the fish. Keep in mind that these calculators are not a substitute for an actual scale as that is the only way to get the exact weight of the fish. Weighing fish by measuring them helps minimize any potential harm to the fish. Standard weight in fish is the typical or expected weight at a given total length for a specific species of fish. Standard Formula. Estimates are less accurate for fish over 40” (102cms). ... can you please give me or send me the Abee software for length weight calculation?m. If applicable on the fish, the bill and tail are both added length that cannot be relied upon for estimating weight so scientists and sporting enthusiasts use the lower jaw as a way to be more accurate and fair in comparison estimation. You can also share the details of your catch with your friends and fellow anglers on many of the popular social media platforms such as Facebook, BBM, Whatsapp, Twitter and any other Social network of choice!Fish Length To Weight is one of the most accurate calculators currently available. The weight results will be extremely close to the actual weight of the fish. If you have ever been in a situation where you caught that fish of a lifetime and are without your scales then this page is for you. Weights are the average for the length. The "long length" is the overall total length of the fish and is NOT used by this calculator. 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