Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam)
The study of cryptic sponges can be challenging, as they are difficult to detect in the environment without the use of destructive methods. The permanence of mineral skeletal components of Porifera in sediments is therefore a tool that can provide support for a more comprehensive study of sponge fau...
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MDPI AG
2024-11-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/12/12/2162 |
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| author | Anna Reboa Barbara Calcinai Carlo Cerrano Eleonora Turvano Giorgio Bavestrello Do Cong Thung Marco Bertolino |
| author_facet | Anna Reboa Barbara Calcinai Carlo Cerrano Eleonora Turvano Giorgio Bavestrello Do Cong Thung Marco Bertolino |
| author_sort | Anna Reboa |
| collection | DOAJ |
| description | The study of cryptic sponges can be challenging, as they are difficult to detect in the environment without the use of destructive methods. The permanence of mineral skeletal components of Porifera in sediments is therefore a tool that can provide support for a more comprehensive study of sponge fauna. In this context, sediments collected from four karst lakes in Ha Long Bay (Vietnam), plus two surrounding sea areas, were processed to extract spicules belonging to sponges with siliceous skeletons. From the morphology of the spicules, it was possible to trace the taxa of the sponges present in the area at that time or earlier. It was found that each lake had a sponge fauna composition characterized by different families and genera. Moreover, sponge taxa identified in the surrounding sea areas differed significantly from the ones inside of the neighboring lakes. In addition, it was possible to identify the presence of four sponge genera not yet recorded in the South China Sea area. Thus, the study of spicules trapped in sediments proved to be a useful tool for a comprehensive study of sponge fauna. |
| format | Article |
| id | doaj-art-2eb3e8e5b19e4d159e23d166fdf2b154 |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-2eb3e8e5b19e4d159e23d166fdf2b1542025-08-20T02:56:48ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-11-011212216210.3390/jmse12122162Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam)Anna Reboa0Barbara Calcinai1Carlo Cerrano2Eleonora Turvano3Giorgio Bavestrello4Do Cong Thung5Marco Bertolino6Department of Earth, Environmental and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, ItalyDepartment of Life and Environmental Sciences (DISVA), Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyDepartment of Life and Environmental Sciences (DISVA), Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyDepartment of Earth, Environmental and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, ItalyDepartment of Earth, Environmental and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, ItalyInstitute of Marine Environment and Resources (IMER), Vietnam Academy of Science and Technology, VAST, Hanoi 180000, VietnamDepartment of Earth, Environmental and Life Sciences (DISTAV), University of Genova, Corso Europa 26, 16132 Genova, ItalyThe study of cryptic sponges can be challenging, as they are difficult to detect in the environment without the use of destructive methods. The permanence of mineral skeletal components of Porifera in sediments is therefore a tool that can provide support for a more comprehensive study of sponge fauna. In this context, sediments collected from four karst lakes in Ha Long Bay (Vietnam), plus two surrounding sea areas, were processed to extract spicules belonging to sponges with siliceous skeletons. From the morphology of the spicules, it was possible to trace the taxa of the sponges present in the area at that time or earlier. It was found that each lake had a sponge fauna composition characterized by different families and genera. Moreover, sponge taxa identified in the surrounding sea areas differed significantly from the ones inside of the neighboring lakes. In addition, it was possible to identify the presence of four sponge genera not yet recorded in the South China Sea area. Thus, the study of spicules trapped in sediments proved to be a useful tool for a comprehensive study of sponge fauna.https://www.mdpi.com/2077-1312/12/12/2162PoriferaVietnamcryptic spongesspicular analysis |
| spellingShingle | Anna Reboa Barbara Calcinai Carlo Cerrano Eleonora Turvano Giorgio Bavestrello Do Cong Thung Marco Bertolino Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam) Journal of Marine Science and Engineering Porifera Vietnam cryptic sponges spicular analysis |
| title | Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam) |
| title_full | Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam) |
| title_fullStr | Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam) |
| title_full_unstemmed | Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam) |
| title_short | Sponge Spicules in Sediments: A Proxy for Past and Present Sponge Fauna Assessment in Ha Long Bay (Vietnam) |
| title_sort | sponge spicules in sediments a proxy for past and present sponge fauna assessment in ha long bay vietnam |
| topic | Porifera Vietnam cryptic sponges spicular analysis |
| url | https://www.mdpi.com/2077-1312/12/12/2162 |
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