The use of fish vertebrae in scats for estimating prey size of otters and mink

摘要: A method of using fish vertebrae in scats otters and mink order to estimate prey size is described. Significant positive correlations between fork length abdominal caudal respectively were demonstrated described for a series reference different species. Comparison direct measurements fed captive with estimates obtained from recovered then derived the appropriate regression lines determined revealed close measure agreement indicated that achieves high level accuracy. Use estimating considered have several advantages over use scales, greatly extends range, accuracy value information can be scat analysis.