Fusiform vateritic inclusions observed in European eel (Anguilla anguilla L.) sagittae
| Autor: | Tamás Müller, Alexandra Németh, Miklós Kázmér, Tamás Váczi, Zoltán Kern, András Specziár |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Age structure Physiological significance Population Zoology engineering.material Biology 010502 geochemistry & geophysics Sagitta 01 natural sciences General Biochemistry Genetics and Molecular Biology Calcium Carbonate Vaterite medicine Animals Tissue Distribution education Physiological stress 0105 earth and related environmental sciences General Environmental Science Otolith Inclusion Bodies education.field_of_study 010604 marine biology & hydrobiology Aragonite Anatomy Anguilla Europe medicine.anatomical_structure Neurology engineering |
| Zdroj: | Acta Biologica Hungarica. 68:267-278 |
| ISSN: | 1588-256X 0236-5383 |
| Popis: | Microscopic inclusions have been observed in 7 out of 106 European eel (Anguilla anguilla L.) sagittae using polarizing microscope and scanning electron microscope meanwhile the annual increments were studied to characterize the age structure of the population living in Lake Balaton. The presence of vaterite, a rare calcium carbonate polymorph was observed in these inclusions using Raman spectroscopy. Vateritic sagittae in wild fish are usually considered as symptom of physiological stress. The observed fusiform inclusions represent a new morphological type of vaterite inclusions in eel otolith. Two alternatives are hypothesized to explain their formation: 1) metabolic disorder, such as erroneous protein synthesis; 2) introduction of an alien protein into the eel's inner ear. The origin and physiological significance of this new morphological type of vateritic inclusions is still an open question. Same as whether it can be found in other species or specific only to eel otoliths. |
| Databáze: | OpenAIRE |
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