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Noble Pen Shell (Pinna nobilis) Mortalities along the Eastern Adriatic Coast with a Study of the Spreading Velocity
| Content Provider | MDPI |
|---|---|
| Author | Ivana, Zupičić Dra, žen Oraić Aleksandar, Popijač Osvin, Pećar Ivan, Sršen Miroslav, Benić Snje, žana Zrnčić Mihaljević, Željko Pavlinec, Željko Habrun, Boris |
| Copyright Year | 2021 |
| Description | Noble pen shells (Pinna nobilis) along the Eastern Adriatic coast were affected by mass mortalities similarly to the populations across the Mediterranean basin. Samples of live animals and organs originating from sites on Mljet Island on the south and the Istrian peninsula on the north of the Croatian Adriatic coast were analyzed using histology and molecular techniques to detect the presence of the previously described Haplosporidium pinnae and Mycobacterium spp. as possible causes of these mortalities. To obtain more information on the pattern of the spread of the mortalities, a study was undertaken in Mljet National Park, an area with a dense population of noble pen shells. The results of the diagnostic analysis and the velocity of the spread of the mortalities showed a significant correlation between increases in water temperature and the onset of mortality. Moderate to heavy lesions of the digestive glands were observed in specimens infected with H. pinnae. A phylogenetic analysis of the detected Haplosporidium pinnae showed an identity of 99.7 to 99.8% with isolates from other Mediterranean areas, while isolated Mycobacterium spp. showed a higher heterogeneity among isolates across the Mediterranean. The presence of Mycobacterium spp. in clinically healthy animals a few months before the onset of mortality imposes the need for further clarification of its role in mortality events. |
| Starting Page | 764 |
| e-ISSN | 20771312 |
| DOI | 10.3390/jmse9070764 |
| Journal | Journal of Marine Science and Engineering |
| Issue Number | 7 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-07-12 |
| Access Restriction | Open |
| Subject Keyword | Journal of Marine Science and Engineering Parasitology Noble Pen Shell Mass Mortality Event Croatia Haplosporidium Pinnae Mycobacterium Spp. Spreading Velocity |
| Content Type | Text |
| Resource Type | Article |
