+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Ecological studies on the mussel mytilus galloprovincialis 2. a simple age estimation method by light penetration

, : Ecological studies on the mussel mytilus galloprovincialis 2. a simple age estimation method by light penetration. Venus the Japanese Journal of Malacology 42(3): 269-288

Age determination of M. galloprovincialis Lamarck was done by a light penetration method. As the shells of this species are applied to penetrating light, a striped pattern is recognized by bands through which the light can and cannot pass. The latter portions are formed in the summer and autumn; the light passable portions are formed in the spring. The number of light transmittable bands coincides with the age of the shell. The boundaries between these 2 kinds are very clear. Along these boundaries, the so-called annual rings, which were formed in the winter exist. By applying the light penetration method together with the winter ring count the age of the mussel can be precisely determined.


Other references

Mehta, A.; Hutfless, S.; Blair, A.B.; Karcher, M.; Nasatka, S.; Schweitzer, M.; Magnuson, T.; Nguyen, H.Tan., 2017: Outcomes of Partnered Individuals Undergoing Bariatric Surgery Together: A Single Institution Case Series. There exists marked variation in weight loss among the 200,000 annual bariatric patients, and many of these patients struggle with weight regain. Several studies have suggested that positive social support may significantly impact bariatric surger...

Hoorweg, J.J.; Loftus, B.M.; Hilgers, F.J.M., 1997: Osteoid and bone formation in a nasal mucosal melanoma and its metastasis. Aims: To present a literature review and a case history concerning bone and osteoid formation by a metastasizing (mucosal) melanoma. Case details: Osteocartilaginous differentiation and production of osteocartilaginous structures in malignant mela...

Monniot, F.; Monniot, C., 1997: Class Ascidiacea - sea squirts. Unknown

Lee, S-Bok.; Shin, Y-Il.; Jo, Y-Joon.; Kim, J-Yeul., 2014: Longitudinal changes in retinal nerve fiber layer thickness after vitrectomy for epiretinal membrane. We investigated longitudinal changes in retinal nerve fiber layer (RNFL) thickness following vitrectomy for epiretinal membrane (ERM). Thirty-one patients who underwent pars plana vitrectomy with internal limiting membrane (ILM) peeling for ERM we...

Smith N.C.; Brush M.G.; Seal P., 1973: The association of progesterone with the surface membrane of human placental villi. Acta Endocrinologica Supplementum 177: 176

Covarrubias, A.; Rincon,; Viruete, S.; Soto, A.; Galvez, B.; Armendariz, J.S.; Panduro, A., 2001: A decrease in HDL-cholesterol correlates with hepatic damage in both experimental and human cirrhosis. Hepatology 34(4 Pt 2): 699A, October

Kasai, T.; Ohmiya, A.; Sakamura, S., 1982: Gamma glutamyl trans peptidases ec in the metabolism of gamma glutamyl peptides in plants. The activity and specificity of .gamma.-glutamyltranspeptidase in immature seeds of some leguminous plants [Phaseolus radiatus, P. angularis, Glycine, max, Vicia faba and Pisum sativum] did not reflect the .gamma.-glutamyl peptide pattern in their...

Koh, L.C., 1995: From Project 2000 to the job market. Nursing Times 91(28): 11-12

Anonymous, 2010: Guidelines update: colon and rectal cancers. Journal of the National Comprehensive Cancer Network 3(1): 3-3

Korajkic, A.; Parfrey, L.Wegener.; McMinn, B.R.; Baeza, Y.Vazquez.; VanTeuren, W.; Knight, R.; Shanks, O.C., 2015: Changes in bacterial and eukaryotic communities during sewage decomposition in Mississippi river water. Microbial decay processes are one of the mechanisms whereby sewage contamination is reduced in the environment. This decomposition process involves a highly complex array of bacterial and eukaryotic communities from both sewage and ambient waters....