Characteristics of submerged and partially submerged caves (habitat type 8330) in Romania.
Black Sea
Karst
Marine caves
Romania
Sulfidic
Journal
Environmental monitoring and assessment
ISSN: 1573-2959
Titre abrégé: Environ Monit Assess
Pays: Netherlands
ID NLM: 8508350
Informations de publication
Date de publication:
23 Nov 2023
23 Nov 2023
Historique:
received:
30
07
2023
accepted:
13
11
2023
medline:
24
11
2023
pubmed:
23
11
2023
entrez:
23
11
2023
Statut:
epublish
Résumé
Underwater sea caves form a relatively under-examined habitat type within the marine regions of Europe, although they provide unique physical conditions such as reduced light and wave energy, in addition to reduced temperature amplitude. This study aimed at revealing the characteristics of submerged cavities on the southern Romanian continental shelf where six protected areas exist. We used high-resolution bathymetry data and side-scan sonar imaging to identify limestone outcrops where cavities would be most probable to form and then performed visual observation during SCUBA diving activities. We found that submerged cavities appear in all marine-protected areas and their neighboring unprotected areas from the shore to ~20-m depth mostly in the form of caverns, niches, and overhangs that meet the physical requirements of the habitat type 8330 as defined by the European Commission. We propose that habitat type 8330 should be listed in the Natura 2000 Standard Data Forms of the protected areas where it is missing, and we also propose that some protected areas should be expanded to include important areas with the occurrence of this habitat type. Finally, we note here for the first time the occurrence of Movile-type karst and an associated sulfidic water spring on the southern shore of Lake Techirghiol, similar to the region near Mangalia where it was first described in the literature. Although our finding prompts for a more detailed study, it indicates the existence of an underground ecosystem similar to that from the well-studied Movile Cave, but isolated by a distance of over 20 km.
Identifiants
pubmed: 37994974
doi: 10.1007/s10661-023-12137-1
pii: 10.1007/s10661-023-12137-1
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1520Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.
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