1. Toward the first documented extinction of a marine macroalga in the Mediterranean Sea?Emmanuelle Patricia Descourvières, Vinko Bandelj, Adriano Sfriso, Martina Orlando-Bonaca, Vesna Mačić, Ljiljana Iveša, Silvija Kipson, Edi Gljušćić, Claudio Battelli, Isabella Moro, Cosimo Solidoro, Annalisa Falace, 2024, izvirni znanstveni članek Povzetek: Fucus virsoides is a glacial relict-species endemic to the Adriatic that was widespread from northern Italy to southern Albania. In recent decades, however, it has suffered an alarming decline. In this study, all available records were reviewed to reconstruct its historical and current occurrence and to investigate the possible causes of its decline. Comprehensive mapping revealed a continuing decline with a significant shift, leaving only about 20 fragmented populations. While the species is already classified as critically endangered in Albania, F. virsoides could be considered functionally extinct in Istria (Croatia), critically threatened with extinction in Italy and Montenegro and locally extinct in Slovenia. The status of the species in the rest of Croatia is still unclear. The remaining populations are located in areas characterised by low temperatures, low salinity and high nutrient concentrations. Long-term analyses of these key abiotic factors revealed profound changes that suggest a link to the species' decline. This study provides a thorough assessment of the overall status of F. virsoides and argues for its inclusion on the IUCN Red List. Immediate conservation measures are needed for the long-term survival of this species. Ključne besede: Adriatic sea, endangered species, distribution, hydrobiology, marine biology Objavljeno v DiRROS: 28.08.2024; Ogledov: 141; Prenosov: 359 Celotno besedilo (3,12 MB) Gradivo ima več datotek! Več... |
2. On the occurrence of early life stage of the king of herrings, Regalectus glesne (Actinopterygii: Lampriformes: Regalectidae), in the Adriatic SeaBranko Dragičević, Armin Pallaoro, Robert Grgičević, Lovrenc Lipej, Jakov Dulčić, 2011, drugi znanstveni članki Povzetek: The occurrence of an early life stage of the king of herrings, Regalecus glesne Ascanius, 1772, is reported for the first time from the Adriatic waters. A single larva (SL = 103.4 mm) was found alive in the waters of open Adriatic near a remote Island PalagruĹľa. Findings of early life stages of this species are very rare in the Mediterranean and have previously been reported only from the waters of the Strait of Sicily and Elba Island.
Ključne besede: fishes, ichthyology, Adriatic sea, Regalectidae, Regalectus glesne, oar fish, Adriatic Sea, larva, diversity, early life stage, record, king of herrings, Central Adriatic Objavljeno v DiRROS: 07.08.2024; Ogledov: 159; Prenosov: 187 Celotno besedilo (1,87 MB) Gradivo ima več datotek! Več... |
3. First substantiated record of a lessepsian migrant - the dusky spinefood, Siganus luridus (Actinopterzgii: Perciformes: Siganidae), in the Adriatic SeaJakov Dulčić, Branko Dragičević, Robert Grgičević, Lovrenc Lipej, 2011, drugi znanstveni članki Povzetek: One specimen of the dusky spinefoot, Siganus luridus (Rüppell, 1829) (+, total length = 17.3 cm, total weight = 87.61 g), a lessepsian migrant, was captured in the Mljet Channel (Southern Adriatic, Croatian coast) on 15 November 2010. This is the second record of this species from the Adriatic, but first well documented and based on the captured specimen. First record occurred earlier in the Northern Adriatic, but was based solely on underwater observations.
Ključne besede: fishes, ichthyology, Adriatic sea, Siganidae, lessepsian migrants, diversity, origins, Mediterranean, new record, Adriatic Sea Objavljeno v DiRROS: 07.08.2024; Ogledov: 190; Prenosov: 97 Celotno besedilo (1017,40 KB) Gradivo ima več datotek! Več... |
4. Range expansion of alien nudibranch Melibe viridis (Kelaart, 1858) in the northern Adriatic SeaLovrenc Lipej, Borut Mavrič, 2017, drugi znanstveni članki Povzetek: The alien nudibranch Melibe viridis (Kelaart, 1858) was recorded in the waters of Slovenia (Gulf of Trieste, northern Adriatic Sea). A specimen was photographed and fi lmed on rocky hard bottom of the Natural Monument Cape Madona in October 2016. This is the fi rst record of this large sized nudibranch for Slovenia and for the Gulf of Trieste, as well, and a new one among otherwise rare records on this species in the Adriatic Sea. Ključne besede: Slovenia, non indigenous species, Adriatic Sea Objavljeno v DiRROS: 07.08.2024; Ogledov: 183; Prenosov: 189 Celotno besedilo (1,60 MB) Gradivo ima več datotek! Več... |
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6. First record of the bryozoan Tricellaria inopinata (dʼHondt & Occhipinti Ambrogi, 1985) from the Slovenian seaAna Fortič, Borut Mavrič, 2018, drugi znanstveni članki Povzetek: In this paper we present the first record of Tricellaria inopinata d’Hondt & Occhipinti Ambrogi, 1985 for the Slovenian coastal sea. The colonies of this bryozoan were found attached to the mussel shells in the sight of Sečovlje, Strunjan and Debeli rtič mussel cultures from April to October 2018 and in Valdoltra harbour in November 2018. After the introduction into the Lagoon of Venice in the 1980s and its rapid spread throughout the lagoon in the following years, the species was regarded as an invasive taxon for that area and it is highly expected to colonize the whole Northern Adriatic region. The status of T. inopinata and its ecological impact has yet to be determined for the Slovenian coastal sea. Ključne besede: alien species, Gulf of Trieste, Adriatic Sea, mussel aquaculture Objavljeno v DiRROS: 07.08.2024; Ogledov: 164; Prenosov: 121 Celotno besedilo (1,10 MB) Gradivo ima več datotek! Več... |
7. Occurrence of ribbon fish (Trachipterus trachypterus) In Slovenian waters (Northern Adriatic Sea)Lovrenc Lipej, Domen Trkov, Borut Mavrič, 2018, drugi znanstveni članki Povzetek: On 6th May 2018 a juvenile specimen of ribbon fish (Trachipterus trachypterus) was collected in shallow waters in Izola (Slovenia, northern Adriatic Sea). It measured 403 mm in total length and weighed 37.1 g. In stomach, fragments of seagrasses, pollen cones of pine, petals of terrestrial plant, fragments of terrestrial grass and beetles were found among food remains. The possible causes of this finding in Slovenian waters could be attributed to the ingression of southern Adriatic waters in its northern part. The specimen studied in this paper is the fifth record of this species in the Slovenian part of the Adriatic Sea. The cooperation between ichthyologists and fishermen proved to be crucial for the detection of the ribbon fish and other rare and less-known fish species, as well. Ključne besede: ribbon fish, occurrence (biology), diet, Adriatic Sea Objavljeno v DiRROS: 07.08.2024; Ogledov: 182; Prenosov: 143 Celotno besedilo (1,26 MB) Gradivo ima več datotek! Več... |
8. Why do only males of Mawia benovici (Pelagiidae: Semaeostomeae: Scyphozoa) seem to onhabit the Northern Adriatic seaValentina Tirelli, Tjaša Kogovšek, Manja Rogelja, Paolo Paliaga, Massimo Avian, Alenka Malej, 2021, drugi znanstveni članki Povzetek: This manuscript presents four new observations of the jellyfish Mawia benovici in the Adriatic Sea. This new species was recently identified as Pelagia benovici by Piraino et al. (2014) and then placed in the new genus Mawia by Avian et al. 2016. This species is rare and is almost exclusively observed in the Adriatic Sea. Interestingly, the majority of observations refer to males only. Few studies have addressed the issue of sex determination in Syphozoa in particular, as sex identity can only be determined at the medusa stage. Unfortunately, the rarity of M. benovici and the lack of female specimens have so far prevented indispensable laboratory studies to clarify its life cycle. Still, we tried to propose an explanation for our field observations.
Ključne besede: jellyfish, sex ratio, Mediterranean Sea Objavljeno v DiRROS: 06.08.2024; Ogledov: 184; Prenosov: 140 Celotno besedilo (763,28 KB) Gradivo ima več datotek! Več... |
9. Unpublished Mediterranean and Black Sea records of marine alien, cryptogenic, and neonative speciesMichail Ragkousis, Argyro Zenetos, Jamila Ben Souissi, Razy Hoffman, Raouia Ghanem, Ana Fortič, Domen Trkov, Lovrenc Lipej, Borut Mavrič, Martina Orlando-Bonaca, Leon Lojze Zamuda, 2023, drugi znanstveni članki Povzetek: To enrich spatio-temporal information on the distribution of alien, cryptogenic, and neonative species in the Mediterranean and the Black Sea, a collective effort by 173 marine scientists was made to provide unpublished records and make them open access to the scientific community. Through this effort, we collected and harmonized a dataset of 12,649 records. It includes 247 taxa, of which 217 are Animalia, 25 Plantae and 5 Chromista, from 23 countries surrounding the Mediterranean and the Black Sea. Chordata was the most abundant taxonomic group, followed by Arthropoda, Mollusca, and Annelida. In terms of species records, Siganus luridus, Siganus rivulatus, Saurida lessepsianus, Pterois miles, Upeneus moluccensis, Charybdis (Archias) longicollis, and Caulerpa cylindracea were the most numerous. The temporal distribution of the records ranges from 1973 to 2022, with 44% of the records in 2020–2021. Lethrinus borbonicus is reported for the first time in the Mediterranean Sea, while Pomatoschistus quagga, Caulerpa cylindracea, Grateloupia turuturu, and Misophria pallida are first records for the Black Sea; Kapraunia schneideri is recorded for the second time in the Mediterranean and for the first time in Israel; Prionospio depauperata and Pseudonereis anomala are reported for the first time from the Sea of Marmara. Many first country records are also included, namely: Amathia verticillata (Montenegro), Ampithoe valida (Italy), Antithamnion amphigeneum (Greece), Clavelina oblonga (Tunisia and Slovenia), Dendostrea cf. folium (Syria), Epinephelus fasciatus (Tunisia), Ganonema farinosum (Montenegro), Macrorhynchia philippina (Tunisia), Marenzelleria neglecta (Romania), Paratapes textilis (Tunisia), and Botrylloides diegensis (Tunisia). Ključne besede: non-native species, non-indigenous, distribution, invasive alien species, geo-referenced records, Mediterranean Sea, Black Sea Objavljeno v DiRROS: 06.08.2024; Ogledov: 200; Prenosov: 498 Celotno besedilo (5,25 MB) Gradivo ima več datotek! Več... |
10. Coastal high-frequency radars in the Mediterranean : Applications in support of science priorities and societal needsEmma Reyes, Eva Aguiar, Michele Bendoni, Maristella Berta, Carlo Brandini, Alejandro Cáceres-Euse, Fulvio Capodici, Vanessa Cardin, Daniela Cianelli, Giuseppe Ciraolo, Matjaž Ličer, 2022, pregledni znanstveni članek Povzetek: The Mediterranean Sea is a prominent climate-change hot spot, with many socioeconomically vital coastal areas being the most vulnerable targets for maritime safety, diverse met-ocean hazards and marine pollution. Providing an unprecedented spatial and temporal resolution at wide coastal areas, high-frequency radars (HFRs) have been steadily gaining recognition as an effective land-based remote sensing technology for continuous monitoring of the surface circulation, increasingly waves and occasionally winds. HFR measurements have boosted the thorough scientific knowledge of coastal processes, also fostering a broad range of applications, which has promoted their integration in coastal ocean observing systems worldwide, with more than half of the European sites located in the Mediterranean coastal areas. In this work, we present a review of existing HFR data multidisciplinary science-based applications in the Mediterranean Sea, primarily focused on meeting end-user and science-driven requirements, addressing regional challenges in three main topics: (i) maritime safety, (ii) extreme hazards and (iii) environmental transport process. Additionally, the HFR observing and monitoring regional capabilities in the Mediterranean coastal areas required to underpin the underlying science and the further development of applications are also analyzed. The outcome of this assessment has allowed us to provide a set of recommendations for future improvement prospects to maximize the contribution to extending science-based HFR products into societally relevant downstream services to support blue growth in the Mediterranean coastal areas, helping to meet the UN's Decade of Ocean Science for Sustainable Development and the EU's Green Deal goals. Ključne besede: coastal monitoring, Mediterranean Sea, multi-platform observing systems, oceanography Objavljeno v DiRROS: 05.08.2024; Ogledov: 200; Prenosov: 155 Celotno besedilo (12,59 MB) Gradivo ima več datotek! Več... |