Weighted linear regression in excel 2010

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Length-weight relationships were calculated by the linear regression of log-transformed total weight on standard length. Total weight and standard length of fish were recorded. Fish were caught by gill-nets with 50 and 80 mm mesh sizes.

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Data were collected monthly from April 2016 to May 2017 at one sampling site. Analyses were performed using Microsoft Office Excel software.Ībramis brama and Perca fluviatilis, two of the most abundant in the area and highly commercial fish species, were chosen for data collection.

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A measuring board and an OHAUS Navigator NVL2101 digital balance (OHAUS Corporation, USA) were used to acquire raw data.

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