1. Hippolyte prideauxiana Leach, 1817 : first record for the northern Adriatic and observations on mimetic colourationRoland Melzer, Martin Heß, Manuel A. Staggl, Tihomir Makovec, Borut Mavrič, 2019, original scientific article Abstract: We present the first record of Hippolyte prideauxiana Leach, 1816 for the northern Adriatic and the second record for the Adriatic Sea based on seven specimens we found during our faunistic inventory of the marine protected area of the Brijuni National Park, Croatia. Moreover, we give the first description of the appearance of 7 mm-juveniles and discuss the stage-specific traits of the crinoid mimesis of this species.
Keywords: colouration, mimesis, Adriatic Sea
Published in DiRROS: 31.07.2024; Views: 93; Downloads: 120
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2. First restoration experiment for Gongolaria barbata in Slovenian coastal waters : What can go wrong?Martina Orlando-Bonaca, Valentina Pitacco, Petra Slavinec, Milijan Šiško, Tihomir Makovec, Annalisa Falace, 2021, original scientific article Abstract: The global decline of brown algal forests along rocky coasts is causing an exceptional biodiversity loss. Regardless of conservation efforts, different techniques have been developed for large-scale restoration strategies in the Mediterranean Sea. In this study we tested ex situ pilot restoration of Gongolaria barbata (=Treptacantha barbata) for the first time in Slovenian coastal waters. Healthy apical fronds of the species were collected and the development of recruits on clay tiles was followed under laboratory conditions for 20 days. Despite the experimental difficulties experienced, especially due to the lack of antibiotics to prevent the growth of the biofilm, G. barbata recruits were outplanted in the sea on two concrete plates with 48 tiles each, protected by purpose-built cages to avoid grazing by herbivorous fish. The high survival rate of juveniles after four months in the field (89% of the tiles on the plate that was constantly protected) suggests that outplanting G. barbata is an operable approach for restoration efforts in the northern Adriatic Sea. Our first experiment in Slovenian coastal waters provides new information for the optimization of the best practices during the laboratory cultivation and addresses the early steps of restoration and introduction of young thalli in the natural environment.
Published in DiRROS: 19.07.2024; Views: 111; Downloads: 71
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3. Where and how : new insight for brown algal forest restoration in the AdriaticMartina Orlando-Bonaca, Gilda Savonitto, Valentina Asnaghi, Domen Trkov, Valentina Pitacco, Milijan Šiško, Tihomir Makovec, Petra Slavinec, Ana Lokovšek, Saul Ciriaco, Mariachiara Chiantore, Sara Kaleb, Emmanuelle Patricia Descourvières, Marina Srijemsi, Annalisa Falace, 2022, original scientific article Abstract: Several anthropogenic factors are responsible for the decline of Cystoseira sensu lato (hereafter Cystoseira) forests along Mediterranean coasts. Some Cystoseira species are already regionally extinct, and their decline has been widely recorded. Sustainable and efficient techniques for the restoration of Cystoseira are needed. In this context, the objectives of this study were i) to analyse the reproductive traits of three populations of Gongolaria barbata from three nearby donor sites in the northern Adriatic Sea, assessing the differences in their reproductive potential and reproductive success; and ii) to evaluate the outplanting success in terms of the effectiveness of G. barbata restoration, in relation to the different donor and receiving sites (Miramare MPA and in front of the Marine Biology Station Piran - MBSP) and implemented methods (ex situ and hybrid method combining a mesocosm cultivation and a suspended culture in the field). After 2 weeks of cultivation in mesocosms, half of the tiles with germlings were transported to the receiving sites and placed on suspended lantern nets (hybrid method), which were later (after 3 months) transferred to the seabed on concrete plates with protective cages. The remaining tiles were placed on the seabed on concrete plates with protective cages after a 4-week culture (ex situ method). At both sites, lantern nets and plates were randomly placed at 3 m depth. Thallus length was measured monthly in each treatment. Seedlings in suspended culture showed lower performance at the Miramare MPA, most likely due to the unfavourable environmental conditions. The satisfactory results obtained at MBSP demonstrate the efficiency of the hybrid method and confirm its potential to reduce the cost and time required for cultivation. Since unpredictable climatic events pose the greatest threat to restoration performance, these challenges must be considered when establishing new restoration practices. Moreover, herbivore regulation is extremely urgent and should be planned and implemented on a larger regional scale.
Keywords: canopy-forming algae, restoration, ex situ, cultivation, Mediterranean Sea
Published in DiRROS: 17.07.2024; Views: 124; Downloads: 29
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4. Kartiranje habitatnih tipov in popis morske biodiverzitete na območju koprske občine : končno poročiloLovrenc Lipej, Ana Fortič, Leon Lojze Zamuda, Tihomir Makovec, Borut Mavrič, Valentina Pitacco, Milijan Šiško, Domen Trkov, Martina Orlando-Bonaca, Danijel Ivajnšič, 2022, final research report Keywords: morska biologija, biološke lastnosti, skupine vrst, habitatni tipi, morski ekosistemi, morska biodiverziteta, morska biološka raznovrstnost, Občina Koper, poročila
Published in DiRROS: 24.04.2024; Views: 279; Downloads: 0 |
