Literaturdatenbank |
Goshe, L. R., Avens, L., Bybee, J., & Hohn, A. A. (2009). An evaluation of histological techniques used in skeletochronological age estimation of sea turtles. Chelonian Conservation & Biology, 8(2), 217–222.
Added by: Sarina Wunderlich (06 Jul 2014 16:11:36 UTC) |
Resource type: Journal Article BibTeX citation key: Goshe2009 View all bibliographic details |
Categories: General Keywords: Chelydra serpentina, Chelydridae, Chrysemys picta, Clemmys guttata, Emydidae, Emydoidea blandingii, Glyptemys insculpta, Morphologie - morphology, Schildkröten - turtles + tortoises Creators: Avens, Bybee, Goshe, Hohn Collection: Chelonian Conservation & Biology |
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Abstract |
Skeletochronological analysis was used to compare stained and unstained cross sections of humeri from Kemp’s ridley (Lepidochelys kempii) and loggerhead (Caretta caretta) sea turtles to determine if the 2 histological techniques yielded an equal number of visible lines of arrested growth (LAGs). Stained sections viewed at high magnification under a compound microscope revealed the presence of closely spaced and splitting LAGs, resulting in a greater number of individual LAG counts for these sections when compared to unstained and stained sections viewed at a lower magnification under a dissecting microscope. Prior studies have shown that some of these closely spaced LAGs are annual, and therefore the inability to detect such marks could result in a downward bias in age estimates.
Added by: Sarina Wunderlich |