Trust network measurement in fish involves anaesthetizing with benzocaine (ethyl-p-amino-benzoate) [26] before being weighed and measured Figure 1. The first step is to take and record the standard length (LS), post-orbital length (LPO) and maximum body width of the fish. Standard length will be taken from the tip of the upper jaw to the base of the caudal peduncle. Then a truss network is constructed between landmark points, homologous throughout the population, chosen because they describe the major features of the fish (Figure 1). The landmarks were linked closely to the skeletal structure of fish and were easily observed by eye.
Hi,
Check this link
https://www.omicsonline.org/open-access/advanced-techniques-for-morphometric-analysis-in-fish-2155-9546-1000354.pdf
Check this link,
https://www.publish.csiro.au/mf/acc/MF17306/MF17306_AC.pdf
Truss is a geometric protocol for character selection which largely overcomes the disadvantages of conventional data sets and it leads to certain style of analysis. In truss system, homologous landmarks on the boundary of the form are divided into two tiers and paired. The distance measures connect these landmarks into an over determinate truss network which is a series of quadrilaterals each having internal diagonals. Each quadrilateral shares one side with each succeeding and preceding quadrilaterals. Please following the link below:
http://eprints.cmfri.org.in/12188/1/27-Truss%20network%20analysis.pdf
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