In lieu of using surface growth rings
or internal growth lines in shells to directly age individual gastropod specimens, individual age can often be estimated from measurements such as total shell length and lip thickness, provided that population growth rates have already been established.
The number of the growth rings
on each scale was verified by three different people and the final results comprised the number of the most frequent growth rings
Pederson's team compared the ship's growth rings
with those of living trees and wood from historic structures.
Schematic view of a section of two growth rings
. Early wood--or spring wood--contains more and larger vessels.
Particularly, the segregation of wood is less noticeable in [D.sub.L] (Figure 2c) due to a high variability between growth rings
. Nevertheless, a tendency of [D.sub.L] decrease based on segregation year was observed.
Hubacz holds a cross-section of a red oak that shows the growth rings
. (2) Close-up of a red oak cross-section showing decreased growth in a red oak resulting, according to forester Ross P.
The goal of this study was to investigate the effects of thinning and fertilization on mechanical properties of loblolly pine (Pinus taeda L.) strands associated with growth ring
number and height.
Since the initial application of daily growth rings
in the aging of larval fishes by Brothers et al.
grandis is one of the tropical species that shows clear growth rings
and suitable for climatic analysis (Chowdhury 1964, Detienne 1989, Bhattacharyya & Shah 2009).
By studying growth rings
from coastal shrubs and lake sediments, the researchers discovered that the region hasn't experienced an event of such magnitude during the past 1,000 years.
Similar to annual growth rings
of trees, otoliths' rings can be counted to indicate a fish's age and annual growth rate, estimated by measuring distances between each new ring.