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Povzetek: The study reports the first record of the tortricid moth Pammene blockiana from Russia. Its males were captured in Sochi in May 2025 in pheromone traps baited with the synthetic sex pheromone of the quarantine pest, the Oriental fruit moth Grapholita molesta. A total of 48 males of P. blockiana were collected from seven traps deployed in gardens and ornamental tree plantings in Sochi. The species was identified based on morphology (forewing pattern and genitalia) and DNA barcoding. The specimens from Sochi showed low genetic variability (0.2 % among three males from three sites) and clustered with individuals from Greece, with a maximum genetic distance of 1.4 %. In DNA-barcoding fragment, Pammene oxycedrana was the closest to P. blockiana, with a minimum genetic distance of 5.4 %, followed by Pammene juniperana (7.1 %). Regular catches in the pheromone traps suggest that P. blockiana is established and potentially abundant in Sochi. As its larvae damage cones of Cupressus and Juniperus, the species may represent a potential threat to Cupressaceae in man-made plantings and nature along the Black Sea coast. New data on the species distribution and the photographs of moth and male genitalia of P. blockiana, as well as the photographs of the related moth species are provided. The species diagnosis is given to distinguish P. blockiana from closely related species associated with Cupressaceae in Europe. Possible ecological consequences and the risk of further spread of P. blockiana are discussed
Ključne besede: new record, tortricid moth, Cupressus, Juniperus, pheromone trapping, DNA barcoding, Back Sea coast of Russia
Objavljeno v DiRROS: 16.06.2026; Ogledov: 26; Prenosov: 20
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Povzetek: Potential temperature and practical salinity data in the deep Southern Adriatic Pit from: the E2M3A deep-ocean observatory at 1000 and 1200 m since 2006 (managed by the National Institute of Oceanography and Applied Geophysics (OGS), Trieste, Italy) the D1200 station (CTD data) since 1957 at 1000 m (managed by the Institute of Oceanography and Fisheries (IOF), Split, Croatia) CTD data from opportunistic cruises since 1985 (managed by OGS) at 1000 m Daily temperature, salinity and potential density anomaly data from the Vida buoy in the Gulf of Trieste (Piran) since 2004 (managed by the Marine Biology Station, Piran, Slovenia)
Ključne besede: Adriatic Sea, dense water, global warming, Gulf of Trieste
Objavljeno v DiRROS: 08.05.2026; Ogledov: 172; Prenosov: 182
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Povzetek: HIDRA3 is a state-of-the-art deep neural model for multi-point sea-level prediction based on past sea level observations and future tidal and geophysical forecasts.
Ključne besede: sea level modeling, deep learning, storm surges
Objavljeno v DiRROS: 13.04.2026; Ogledov: 145; Prenosov: 196
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Povzetek: Phytoplankton plays a fundamental role in marine ecosystems and is widely used to assess environmental change. In this study, light microscopy and DNA metabarcoding approaches were used to investigate phytoplankton communities at three long-term monitoring sites in the northern Adriatic Sea. By combining the two approaches, more than 500 species were recorded. Metabarcoding detected substantially higher diversity, particularly among small and fragile organisms that are difficult to identify under a microscope, whereas microscopy was better for identifying larger species with distinctive morphology. Because species contain different amounts of genetic material, DNA data can overestimate or underestimate their true contribution to the community. Indeed, after applying correction factors that account for these differences, the DNA-based estimates became more consistent with the microscopy results for several phytoplankton groups. The differences among the samples were influenced more by the approach used than by the sampling location. Overall, combining these two approaches provides an accurate and robust picture of phytoplankton communities. In this way, it is possible to improve the reliability of marine biodiversity assessments and to support better environmental monitoring and management in coastal seas.
Ključne besede: phytoplankton, diversity, environmental DNA, Long-Term Ecological Research, amplicon sequencing, North Adriatic Sea
Objavljeno v DiRROS: 25.03.2026; Ogledov: 289; Prenosov: 220
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Povzetek: This study presents the first comprehensive assessment of microalgal diversity in two Slovenian transitional waters (TWs): the shallow brackish lagoon of the Škocjanski Zatok Nature Reserve (SZNR) and the Rižana River estuary within the Port of Koper (PK) area. Between 2018 and 2021, water samples collected with a phytoplankton net were analyzed using light and scanning electron microscopy. In total, 240 species from 117 genera were identified in TW, dominated by diatoms and dinoflagellates, surpassing the diversity at a marine coastal station (91 species, 59 genera). Species richness was higher in PK (226) than in SZNR (154), mainly due to dinoflagellates and coccolithophores. Marine taxa predominated along the salinity gradient, with moderate contributions from brackish taxa and fewfreshwater forms, reflecting both natural and anthropogenic influences. Planktonic taxa dominated at all sites, while benthic forms were abundant in the lagoon, particularly in spring. Thirty-two taxa were recorded for the first time in Slovenian TW, mostly benthic or tychopelagic diatoms. The detection of Coolia monotis and five cyanobacterial genera with potentially harmful traits highlights the role of TW as an ecological interface. The taxonomic sufficiency analysis showed that the order level is sufficient to distinguish transitional from marine assemblages, beyond which ecological information is lost. Overall, this study highlights the importance of detailed taxonomic resolution for detecting microalgal diversity, including harmful and non-indigenous species to ensure robust ecological assessments under the WFD and MSFD directives.
Ključne besede: transitional waters, diversity, phytoplankton, harmful algal blooms, non-indigenous species, Adriatic Sea
Objavljeno v DiRROS: 27.01.2026; Ogledov: 459; Prenosov: 442
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