Shell Infestation of the Farmed Pacific Oyster Magallana gigas by the Endolith Bivalve Rocellaria dubia

Oyster shells are substratum for different epibiontic and endobiontic organisms, including pests and parasites. Rocellaria dubia is endolithic and facultative tube-dwelling bivalve, boring in different calcareous substrates, including the shells of bivalves. In 2020, R. d...

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Autores principales:	Barbara Mikac, Alessandro Tarullo, Marina Antonia Colangelo, Marco Abbiati, Federica Costantini
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	endobiont borer parasite Mediterranean Adriatic flask shells Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/3006b1cf3bc54a189514ab6cff4c21f3
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spelling	oai:doaj.org-article:3006b1cf3bc54a189514ab6cff4c21f32021-11-25T17:22:22ZShell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>10.3390/d131105261424-2818https://doaj.org/article/3006b1cf3bc54a189514ab6cff4c21f32021-10-01T00:00:00Zhttps://www.mdpi.com/1424-2818/13/11/526https://doaj.org/toc/1424-2818Oyster shells are substratum for different epibiontic and endobiontic organisms, including pests and parasites. <i>Rocellaria dubia</i> is endolithic and facultative tube-dwelling bivalve, boring in different calcareous substrates, including the shells of bivalves. In 2020, <i>R. dubia</i> was found as endolithic in the shells of the Pacific oyster <i>Magalana gigas</i>, from an oyster farm off the Sacca di Goro lagoon (Emilia-Romagna region, Northern Adriatic Sea, Italy). The purpose of this study was to describe this newly recorded association. Altogether, 136 specimens of <i>R. dubia</i> were found in 15 oysters, photographed under a stereoscope, and their length was measured. Heavily infested oysters hosted tens of <i>R. dubia</i> borers, which were perforating the whole thickness of the oyster valves. The flesh of these oysters was heavily damaged, suggesting parasitic association. <i>R. dubia</i> specimens were categorized into three age classes (0–1, 1–2, and 2–3 years old). <i>M. gigas/R. dubia</i> might be a widespread association, overlooked due to the very scarce research on macrofauna associated with <i>M. gigas</i>. Considering the negative effects of <i>R. dubia</i> endobiosis on oyster fitness, and possible impacts on oyster aquaculture, further research should be conducted in order to elucidate the distribution and ecological characteristics of this parasitic association.Barbara MikacAlessandro TarulloMarina Antonia ColangeloMarco AbbiatiFederica CostantiniMDPI AGarticleendobiontborerparasiteMediterraneanAdriaticflask shellsBiology (General)QH301-705.5ENDiversity, Vol 13, Iss 526, p 526 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	endobiont borer parasite Mediterranean Adriatic flask shells Biology (General) QH301-705.5
spellingShingle	endobiont borer parasite Mediterranean Adriatic flask shells Biology (General) QH301-705.5 Barbara Mikac Alessandro Tarullo Marina Antonia Colangelo Marco Abbiati Federica Costantini Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>
description	Oyster shells are substratum for different epibiontic and endobiontic organisms, including pests and parasites. <i>Rocellaria dubia</i> is endolithic and facultative tube-dwelling bivalve, boring in different calcareous substrates, including the shells of bivalves. In 2020, <i>R. dubia</i> was found as endolithic in the shells of the Pacific oyster <i>Magalana gigas</i>, from an oyster farm off the Sacca di Goro lagoon (Emilia-Romagna region, Northern Adriatic Sea, Italy). The purpose of this study was to describe this newly recorded association. Altogether, 136 specimens of <i>R. dubia</i> were found in 15 oysters, photographed under a stereoscope, and their length was measured. Heavily infested oysters hosted tens of <i>R. dubia</i> borers, which were perforating the whole thickness of the oyster valves. The flesh of these oysters was heavily damaged, suggesting parasitic association. <i>R. dubia</i> specimens were categorized into three age classes (0–1, 1–2, and 2–3 years old). <i>M. gigas/R. dubia</i> might be a widespread association, overlooked due to the very scarce research on macrofauna associated with <i>M. gigas</i>. Considering the negative effects of <i>R. dubia</i> endobiosis on oyster fitness, and possible impacts on oyster aquaculture, further research should be conducted in order to elucidate the distribution and ecological characteristics of this parasitic association.
format	article
author	Barbara Mikac Alessandro Tarullo Marina Antonia Colangelo Marco Abbiati Federica Costantini
author_facet	Barbara Mikac Alessandro Tarullo Marina Antonia Colangelo Marco Abbiati Federica Costantini
author_sort	Barbara Mikac
title	Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>
title_short	Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>
title_full	Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>
title_fullStr	Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>
title_full_unstemmed	Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>
title_sort	shell infestation of the farmed pacific oyster <i>magallana gigas</i> by the endolith bivalve <i>rocellaria dubia</i>
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3006b1cf3bc54a189514ab6cff4c21f3
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Shell Infestation of the Farmed Pacific Oyster <i>Magallana gigas</i> by the Endolith Bivalve <i>Rocellaria dubia</i>

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