The diversity of fauna in Posidonia oceanica (L.) Delile meadows in the area of cape Kamenjak (Istria)

U Jadranu, biocenoza Posidonia oceanica predstavlja jedan od najvažnijih ekosustava, tj. klimaks biocenoza morskih cvjetnica. Dobar je indikator kvalitete morske vode i vrlo je osjetljiva na antropogene utjecaje. U Javnoj ustanovi Kamenjak autonomnim ronjenjem utvrđene su gustoće livada i u njima prisutne vrste faune na 8 postaja, sa ciljem utvrđivanja stanja i smjernica za daljnje upravljanje. Najveća gustoća livade i najveća bioraznolikost utvrđena je na postaji Porer, zatim Fenoliga i Školjić, a najmanja na Portić i Polje. U livadama posidonije ukupno je utvrđeno 2 vrste spužvi, 14 vrsta žarnjaka (6 koralja, 7 obrubnjaka i 1 režnjak), 1 vrsta vrpčara, 1 vrsta štrljcaljca, 31 vrsta mekušaca (16 školjkaša, 13 puževa i 2 glavonošca), 13 vrsta mnogočetinaša, 9 vrsta rakova, 9 vrsta mahovnjaka, 6 vrsta plaštenjaka i 26 vrsta riba. Najčešće vrste su Symphodus rostratus, Spirorbis sp., Halecium halecinum, Actinia equina, Calpensia nobilis, Bittium reticulatum, Cladocora caespitosa koje su zabilježene na svim postajama. S obzirom na faunu, najveći su indeks sličnosti imale postaje Šekovac i Fenoliga, dok su najmanji indeks sličnosti imale postaje Školjić i Polje.In the Adriatic Sea, biocenosis of Posidonia oceanica beds represents one of the most important ecosystems, the climax of seagrass biocenosis. It represents a good indicator of the seawater quality, being strongly sensitive to human perturbations. In the public facility Kamenjak, density of the meadows was measured on 8 stations by diving with autonomic diving equipment, with the goal of defining the condition of Posidonia oceanica meadows and guidelines for managing the facility. Fauna species present in the Posidonia oceanica meadows were determined and listed. In total 16 species of algae, 2 species of sponges, 14 species of cnidarians ( 6 anthozoans, 7 hydrozoans and 1 scyphozoan), 1 ribbon worm, 1 sipunculid, 31 species of molluscs (16 bivalves, 13 gastropods and 2 cephalopods), 13 species of polychaetes, 9 species of crustaceans, 9 species of bryozoans, 6 species of tunicates and 26 fish species were determined. The highest biodiversity and density of P. oceanica was at the station Porer, Fenoliga and Školjić, and the lowest density was on the Portić station. The most common species were Symphodus rostratus, Spirorbis sp., Halecium halecinum, Actinia equina, Calpensia nobilis, Bittium reticulatum, Cladocora caespitosa which were present at all stations. Regarding the fauna species, the highest similarity index was between stations Šekovac and Fenoliga and the lowest was between Školjić and Polje

Unpublished Mediterranean records of marine alien and cryptogenic species

Good datasets of geo-referenced records of alien species are a prerequisite for assessing the spatio-temporal dynamics of biological invasions, their invasive potential, and the magnitude of their impacts. However, with the exception of first records on a country level or wider regions, observations of species presence tend to remain unpublished, buried in scattered repositories or in the personal databases of experts. Through an initiative to collect, harmonize and make such unpublished data for marine alien and cryptogenic species in the Mediterranean Sea available, a large dataset comprising 5376 records was created. It includes records of 239 alien or cryptogenic taxa (192 Animalia, 24 Plantae, 23 Chromista) from 19 countries surrounding the Mediterranean Sea. In terms of records, the most reported Phyla in descending order were Chordata, Mollusca, Chlorophyta, Arthropoda, and Rhodophyta. The most recorded species was Caulerpa cylindracea, followed by Siganus luridus, Magallana sp. (cf. gigas or angulata) and Pterois miles. The dataset includes records from 1972 to 2020, with the highest number of records observed in 2018. Among the records of the dataset, Dictyota acutiloba is a first record for the Mediterranean Sea. Nine first country records are also included: the alga Caulerpa taxifolia var. distichophylla, the cube boxfish Ostracion cubicus, and the cleaner shrimp Urocaridella pulchella from Israel; the sponge Paraleucilla magna from Libya and Slovenia; the lumpfish Cyclopterus lumpus from Cyprus; the bryozoan Celleporaria vermiformis and the polychaetes Prionospio depauperata and Notomastus aberans from Malta

Commercial Quality, Biological Indices and Biochemical Composition of Queen Scallop <i>Aequipecten opercularis</i> in Culture

Market demand for scallops has considerably increased in recent decades. Although natural populations of scallops are vulnerable, the queen scallop, Aequipecten opercularis, can represent a possible alternative to at-risk species. The aim of this study was to determine the effect of seawater parameters on the commercial quality, biological indices and nutritional quality of the scallop A. opercularis in 1900 L tanks in ex situ conditions. The condition index (CI) and meat yield (MY) peaked in autumn (89.92% and 40.29%, respectively). The muscle index (MI) showed the highest peak during the winter season (5.96%), while the gonadosomatic index (GSI) (34.06%) peaked in the spring months. Protein content (6.89–9.56 g/100 g), lipids (2.58–2.79 g/100 g) and carbohydrates (0.12–0.33 g/100 g) varied during the study period. Seasonal fluctuations in seawater temperature and pH negatively influenced the CI, MY and protein and lipid content, while positively affecting carbohydrate and moisture content. The most suitable period of the year for the consumption of the scallop A. opercularis was found to be the winter and spring periods, when the scallops achieved their highest nutritional value. It can be stated from this study that queen scallops in the Adriatic Sea have a high nutritional quality and that they can be proposed for higher human consumption

The Effect of <i>Lactiplantibacillus plantarum</i> I-Enriched Diet on the Phenolic Content and Antioxidant Capacity of Queen Scallop (<i>Aequipecten opercularis</i> Linnaeus, 1758) Extracts

The use of probiotics in the diet of bivalves poses a great potential in aquaculture as an alternative to antibiotics. The aim of this study was to assess the effect of Lactiplantibacillus plantarum I on the phenolic content and antioxidant capacity (AC) of queen scallop extracts after one month of feeding. Total phenols (TP) ranged from 28.17 ± 3.11 to 58.58 ± 8.57 mg GAE/100 g, total non-flavonoids (TNF) from 23.33 ± 3.66 to 36.56 ± 9.91 mg GAE/100 g, and total flavonoids (TF) from 10.56 ± 5.57 to 30.16 ± 1.69 mg CE/100 g. AC was assessed via three different methods: the ferric-reducing ability of plasma assay (FRAP), 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic) acid assay (ABTS), and 2,2-diphenyl-1-picryhydrazyl assay (DPPH). FRAP values ranged from 0.13 ± 0.03 to 0.17 ± 0.02 µM AA/g, ABTS from 0.68 ± 0.11 to 2.79 ± 0.34 µM AA/g, and DPPH from 1.75 ± 0.17 to 2.98 ± 0.53 µM AA/g. Among all extracts, the best phenolic content and AC were observed in water extracts from queen scallops. The bivalves treated with the Lactiplantibacillus plantarum I-enriched diet showed higher AC according to the FRAP assay in all extracts. A significant correlation was observed between AC and TP and TNF in control and Lactiplantibacillus plantarum I-treated scallops

25 godina Hrvatskog vojnog učilišta "Dr. Franjo Tuđman"

Hrvatsko vojno učilište "Dr. Franjo Tuđman" obilježilo je svoju 25. obljetnicu održavanjem Okrugloga stola "HVU - od Domovinskog rata do sveučilišne zajednice". Skup je raspravom različitih sudionika omogućio sveobuhvatan prikaz uloge i značaja vojne izobrazbe od njezinih začetaka, trenutnog stanja te daljnje transformacije kao samostalnog sveučilišta ili dijela sveučilišne zajednice. Publikacija "25 godina Hrvatskog vojnog učilišta Dr. Franjo Tuđman" zbornik je radova tema i izlaganja pripremljenih za Okrugli stol na HVU-u održan 11. svibnja 2016. godine

Unpublished Mediterranean records of marine alien and cryptogenic species

Good datasets of geo-referenced records of alien species are a prerequisite for assessing the spatio-temporal dynamics of biological invasions, their invasive potential, and the magnitude of their impacts. However, with the exception of first records on a country level or wider regions, observations of species presence tend to remain unpublished, buried in scattered repositories or in the personal databases of experts. Through an initiative to collect, harmonize and make such unpublished data for marine alien and cryptogenic species in the Mediterranean Sea available, a large dataset comprising 5376 records was created. It includes records of 239 alien or cryptogenic taxa (192 Animalia, 24 Plantae, 23 Chromista) from 19 countries surrounding the Mediterranean Sea. In terms of records, the most reported Phyla in descending order were Chordata, Mollusca, Chlorophyta, Arthropoda, and Rhodophyta. The most recorded species was Caulerpa cylindracea, followed by Siganus luridus, Magallana sp. (cf. gigas or angulata) and Pterois miles. The dataset includes records from 1972 to 2020, with the highest number of records observed in 2018. Among the records of the dataset, Dictyota acutiloba is a first record for the Mediterranean Sea. Nine first country records are also included: the alga Caulerpa taxifolia var. distichophylla, the cube boxfish Ostracion cubicus, and the cleaner shrimp Urocaridella pulchella from Israel; the sponge Paraleucilla magna from Libya and Slovenia; the lumpfish Cyclopterus lumpus from Cyprus; the bryozoan Celleporaria vermiformis and the polychaetes Prionospio depauperata and Notomastus aberans from Malta.JRC.D.2-Water and Marine Resource

Unpublished Mediterranean records of marine alien and cryptogenic species

Good datasets of geo-referenced records of alien species are a prerequisite for assessing the spatio-temporal dynamics of biological invasions, their invasive potential, and the magnitude of their impacts. However, with the exception of first records on a country level or wider regions, observations of species presence tend to remain unpublished, buried in scattered repositories or in the personal databases of experts. Through an initiative to collect, harmonize and make such unpublished data for marine alien and cryptogenic species in the Mediterranean Sea available, a large dataset comprising 5376 records was created. It includes records of 239 alien or cryptogenic taxa (192 Animalia, 24 Plantae, 23 Chromista) from 19 countries surrounding the Mediterranean Sea. In terms of records, the most reported Phyla in descending order were Chordata, Mollusca, Chlorophyta, Arthropoda, and Rhodophyta. The most recorded species was Caulerpa cylindracea, followed by Siganus luridus, Magallana sp. (cf. gigas or angulata) and Pterois miles. The dataset includes records from 1972 to 2020, with the highest number of records observed in 2018. Among the records of the dataset, Dictyota acutiloba is a first record for the Mediterranean Sea. Nine first country records are also included: the alga Caulerpa taxifolia var. distichophylla, the cube boxfish Ostracion cubicus, and the cleaner shrimp Urocaridella pulchella from Israel; the sponge Paraleucilla magna from Libya and Slovenia; the lumpfish Cyclopterus lumpus from Cyprus; the bryozoan Celleporaria vermiformis and the polychaetes Prionospio depauperata and Notomastus aberans from Malta.</p