Morphometry

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Morphometry

 

quantitative description of the relief of the earth’s surface. The basic morphometric indexes are numerical measures of relief forms: linear, areal, and volumetric measures, absolute and relative elevations of individual geomorphological regions, the depth and density of dissection, and abstract indexes (coefficient of meandering of a river channel, coastline, and the like). Morphometric data are usually obtained by processing topographical maps, but the use of aerial photographs is also possible (employing stereophotogrammetric methods). Special morphometric maps or sets of maps are compiled on the basis of the measurements and computations made. Morphometric data are essential for planning structures, roads, steps to combat erosion, and the like.

References in periodicals archive ?
Anatomic basis of anterior and posterior instrumentation of the spine: morphometric study.
Morphometric characteristic of Shishper Watershed, Hunza, North Pakistan.
Ninety morphometric characters were subjected to a univariate analysis of variance (ANOVA) to compare the populations of the different sampled sites of B.
Nutrient foramina in the upper and lower limb long bones: morphometric study in bones of southern Brazilian adults.
Morphometric measurements were recorded in terms of Body Length (cm), Wing spread (cm), Shank length (cm), Shank circumference (cm), Drumstick length (cm), Drumstick circumference (cm), Keel length (cm) and Breast width (cm).
All individuals were measured for 20 morphometric and four meristic (the number of hard and soft rays in dorsal, pectoral, ventral and anal fins) traits according to the Brylinska (1986) (Fig.
Regression analysis determined the morphometric data for SH-SL, SH-SW, SW-SL, BW-SL, BW-SH, and BW-SW (log-transformed).
Following morphometric measurements were done on dry skulls using Vernier calipers in mm and recorded.
It is important to emphasize the importance of carrying out studies of gonadal development that corroborate the morphometric size at first maturity; however, it is proposed that the estimation provided by the SSI can be used as first approximation when the information on the species is very limited.
Eventually, with further data collection and testing, morphometric analysis could be a useful tool for tracing the origins of many different fish species, Canty said.
Table 3 shows statistical morphometric analysis of the atlas vertebral artery groove class I with minimum and maximum values of measured parameters, mean values and standard deviations.
Otolith morphometric measurements (otolith length [OL], width [OW], and radius [OR]) were measured to the nearest 0.001 mm by using QCapture Pro (2) imaging software (vers.