Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study
Abstract The metamorphosis of the glochidium of the critically endangered Margaritifera auricularia in the gills of a host is studied here for the first time. Siberian sturgeon, Acipenser baeri, were infected with glochidia and regularly inspected using scanning and optical microscopy. The mature gl...
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crwiley:10.1002/jmor.10031 2024-06-02T08:14:23+00:00 Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study Araujo, R. Cámara, N. Ramos, M.A. 2002 http://dx.doi.org/10.1002/jmor.10031 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.10031 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.10031 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Morphology volume 254, issue 3, page 259-265 ISSN 0362-2525 1097-4687 journal-article 2002 crwiley https://doi.org/10.1002/jmor.10031 2024-05-06T07:00:51Z Abstract The metamorphosis of the glochidium of the critically endangered Margaritifera auricularia in the gills of a host is studied here for the first time. Siberian sturgeon, Acipenser baeri, were infected with glochidia and regularly inspected using scanning and optical microscopy. The mature glochidia immediately attach to the epithelium of the sturgeon gill filaments, piercing the secondary lamellae and the connective tissues, blood cells, and vessels within the lamellae. Once the epithelium is pierced, overlapping host lamellae cover the glochidium and form a cyst. Metamorphosis takes place inside the cyst. Sixteen days after infection the glochidium becomes spherical in shape and the larval muscle is reabsorbed. The two adductor muscles of the juvenile are observed 34 days after infection at 16–20°C. Metamorphosis is complete in approximately 51 days at 18–22°C and in 65 days at 16–17°C. Released juveniles have a spherical shell with a thin rim of new shell material and a finely ciliated foot. Juvenile mean measurements are: length = 190 μm, width = 193 μm, and height = 210 μm. J. Morphol. 254:259–265, 2002. © 2002 Wiley‐Liss, Inc. Article in Journal/Newspaper Siberian sturgeon Wiley Online Library Journal of Morphology 254 3 259 265 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The metamorphosis of the glochidium of the critically endangered Margaritifera auricularia in the gills of a host is studied here for the first time. Siberian sturgeon, Acipenser baeri, were infected with glochidia and regularly inspected using scanning and optical microscopy. The mature glochidia immediately attach to the epithelium of the sturgeon gill filaments, piercing the secondary lamellae and the connective tissues, blood cells, and vessels within the lamellae. Once the epithelium is pierced, overlapping host lamellae cover the glochidium and form a cyst. Metamorphosis takes place inside the cyst. Sixteen days after infection the glochidium becomes spherical in shape and the larval muscle is reabsorbed. The two adductor muscles of the juvenile are observed 34 days after infection at 16–20°C. Metamorphosis is complete in approximately 51 days at 18–22°C and in 65 days at 16–17°C. Released juveniles have a spherical shell with a thin rim of new shell material and a finely ciliated foot. Juvenile mean measurements are: length = 190 μm, width = 193 μm, and height = 210 μm. J. Morphol. 254:259–265, 2002. © 2002 Wiley‐Liss, Inc. |
format |
Article in Journal/Newspaper |
author |
Araujo, R. Cámara, N. Ramos, M.A. |
spellingShingle |
Araujo, R. Cámara, N. Ramos, M.A. Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study |
author_facet |
Araujo, R. Cámara, N. Ramos, M.A. |
author_sort |
Araujo, R. |
title |
Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study |
title_short |
Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study |
title_full |
Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study |
title_fullStr |
Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study |
title_full_unstemmed |
Glochidium metamorphosis in the endangered freshwater mussel Margaritifera auricularia (Spengler, 1793): A histological and scanning electron microscopy study |
title_sort |
glochidium metamorphosis in the endangered freshwater mussel margaritifera auricularia (spengler, 1793): a histological and scanning electron microscopy study |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1002/jmor.10031 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.10031 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.10031 |
genre |
Siberian sturgeon |
genre_facet |
Siberian sturgeon |
op_source |
Journal of Morphology volume 254, issue 3, page 259-265 ISSN 0362-2525 1097-4687 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jmor.10031 |
container_title |
Journal of Morphology |
container_volume |
254 |
container_issue |
3 |
container_start_page |
259 |
op_container_end_page |
265 |
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1800738220385763328 |