Predicting Grey Triggerfish Body Size from Bones

✍ Scribed by I. ZOHAR; T. DAYAN; E. SPANIER

• Book ID: 101286842
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 140 KB
• Volume: 7
• Category: Article
• ISSN: 1047-482X
• DOI: 10.1002/(sici)1099-1212(199703)7:2<150::aid-oa329>3.0.co;2-t

✦ Synopsis

The present study presents a method for predicting trigger®sh body size (standard length and body mass) from bones recovered from archaeological sites. Regression equations were calculated from 42 fresh trigger®sh. The following seven measurements were used as best predictors for body size based on the regression coef®cients, reliability of the measurements and survivorship of the bones in archaeological material: width of ethmoid, width of vomer, width of ®rst dorsal spine, width of dorsal postcleithrum, width of atlas, width of sixth vertebra, and greatest height of basal pterygiophore. These equations enabled us to assess the contribution of ®sh to the economy and aided us in identifying various ®shing methods.