« Previous |
1 - 10 of 11
|
Next »
Number of results to display per page
Search Results
2. Diet and growth of spirlin, Alburnoides bipunctatus in the barbel zone of the Sava River
- Creator:
- Treer, Tomislav, Piria, Marina, Aničić, Ivica, Safner, Roman, and Tomljanović, Tea
- Type:
- article and TEXT
- Subject:
- cyprinid, Croatia, condition, feeding, and threat
- Language:
- English
- Description:
- No spirlin have been registered in the barbel zone of the Sava River, Croatia in the late seventies of the last century. Since then, due to improved water quality the presence of spirlin gradually increased in number (23.3%) and in biomass (4.7%). The most dominant item in the diet of spirlin were Bacillariophyceae and Chlorophyceae during every monthly investigation. The diet consisted also of invertebrates which can be considered as a secondary or an accidental prey. The size related analyse of the consumed food showed Bacillariophyceae to be preferred food by fish of all sizes. The back calculated growth in the total length could be expressed by the following formula: Lt = 12.0 (1-e -0.59 (t+0.14)). The phi-prime of spirlin from the Sava river is φ’=4.44. The length-weight relationship, covering the fish from the entire growing period, showed an isometric growth with a b-value of 3.025 (p›0.05), except of September when it was significantly allometric. That was confirmed by the non-significant relationship between condition factor and total length (r = 0.014; p > 0.05). However, CF in June, September and October (0.86 ± 0.07; 0.85 ± 0.09 and 0.87 ± 0.10, respectively) was significantly lower (p<0.05) than in May and July (1.00±0.21 and 1.00±0.12, respectively). The improved water quality during the last fifteen years enabled spirlin to migrate and enlarge its population downstream, resulting in a slightly decreased condition factor.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
3. Diet and growth of the endemic Neretva chub, Squalius svallize from the Neretva river area, Bosnia and Herzegovina
- Creator:
- Ivanković, Predrag, Treer, Tomislav, Piria, Marina, and Knezović, Zrinka
- Type:
- article and TEXT
- Subject:
- nutrition, condition, Croatia, and Adriatic dace
- Language:
- English
- Description:
- The Neretva chub, Squalius svallize is an endemic species of the Adriatic basin of the southeastern Europe. Altogether, 60 specimens were caught by gill nets from the Neretva river area, the oldest being seven years old. The most dominant item in the diet of S. svallize during winter season were larvae of Trichoptera and Diptera. Diptera larvae were also dominant during spring and summer. In autumn period the largest amount in stomach content were Trichoptera larvae and Gastropoda. Plant material was present in stomach content but not dominant food item. The von Bertalanffy formula, counted from the back calculated growth in total length, appeared to be: Lt = 35.3 (1-e-0.15 (t+1.40)). The phiprime of Neretva chub (ln base) is Φ’=5.23. The length-weight relationship, including the fish from the entire growing period, demonstrated positive allometric growth with a b-value of 3.47. The average value for condition factor was CF = 0.98±0.14 (min = 0.76; max = 1.29).
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
4. Distribution and status of the genus Gobio in Croatia
- Creator:
- Mustafić, Perica, Ćaleta, Marko, Mrakovčić, Milorad, Buj, Ivana, Zanella, Davor, Mišetić, Stjepan, and Lusk, Stanislav
- Type:
- article and TEXT
- Subject:
- gudgeon, distribution, endangerment, and Croatia
- Language:
- English
- Description:
- This study describes the of distribution and level of endangerment of the genus Gobio in Croatia. Four species of the genus Gobio live in the Croatian Danube River basin: Gobio Gobio - common gudgeon, G. albipinnatus - whitefin gudgeon, G. kesslerii - sand gudgeon and G. uranoscopus - stone gudgeon, while in the Croatian Adriatic Sea basin lives only G. Gobio. According to IUCN methodology and the level of endangerment, in the Red List of Threatened Plants and Animals of Croatia G. Gobio is considered to be of the least concern (LC). G. uranoscopus and G. kesslerii are in the category of near threatened (NT) while G. albipinnatus is considered as data deficient (DD).
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
5. Four species of long-eared bats (Plecotus, Geoffroy, 1818; Mammalia, Vespertilionidae) in Croatia
- Creator:
- Tvrtković, Nikola, Pavlinić, Igor, and Haring, Elisabeth
- Type:
- article and TEXT
- Subject:
- Plecotus, long-eared bats, external characters, variability, habitat, and Croatia
- Language:
- English
- Description:
- The variability of the external characters of four sibling Plecotus species in Croatia was analysed. For the recently discovered species P. macrobullaris and P. kolombatovici we used specimens identified by mitochondrial DNA sequences as key specimens. Living individuals of P. kolombatovici can be distinguished from P. macrobullaris and P. auritus by means of shorter thumb and hind foot, more clearly than distinguishing P. austriacus from P. auritus. Using the triangular pad on the lower lip it is easy to distinguish P. macrobullaris from all other species in the field. Sympatric distribution is confirmed for P. macrobullaris and P. auritus as well as for P. auritus and P. austriacus. In Istria, P. kolombatovici was found only at one site syntopic with P. austriacus and at another site inhabiting the same church attic with P. macrobullaris.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
6. Gyrodactylus orecchiae sp. n. (Monogenea: Gyrodactylidae) from farmed populations of gilthead seabream (Sparus aurata) in the Adriatic Sea
- Creator:
- Paladini, Giuseppe, Cable, Joanne, Fioravanti, Maria L., Faria, Patricia J., Di Cave, David, and Shinn, Andrew P.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Monogenea, Gyrodactylus orecchiae, gilthead seabream, Sparus aurata, Croatia, and Albania
- Language:
- English
- Description:
- Gyrodactylus orecchiae sp. n. (Monogenea, Gyrodactylidae) is described from the skin, fins, eyes and gills of juvenile Sparus aurata L. (gilthead seabream) following two outbreaks of gyrodactylosis amongst stocks held in inshore floating cages on the Adriatic coast of Albania and Croatia. Fish were heavily infected (1000+ gyrodactylids/fish) with G. orecchiae which reportedly resulted in ~2-10% mortality amongst the infected stock. Morphologically, the haptoral hooks of G. orecchiae most closely resemble those of Gyrodactylus arcuatus Bychowsky, 1933 in the approximate shape of the ventral bar with its pronounced ventral bar processes and marginal hook sickles which possess a square line to the inner edge of the sickle blade and large rounded heels. The marginal hooks are also morphologically similar to those of Gyrodactylus quadratidigitus Longshaw, Pursglove et Shinn, 2003 and Gyrodactylus colemanensis Mizelle et Kritsky, 1967, but G. orecchiae can be readily discriminated from all three species by the characteristic infolding of the hamuli roots and the shape of the marginal hook sickle. Molecular sequencing of the ITS1, 5.8S, ITS2 regions (513+157+404 bp, respectively) of G. orecchiae and alignment with other gyrodactylids for which these same genomic regions have been determined, suggests that this is a new species. No similarities were found when the ITS1 region of G. orecchiae was compared with 84 species of Gyrodactylus available on GenBank.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
7. Hydrodynamic modeling of stratified estuary: case study of the Jadro River (Croatia)
- Creator:
- Ljubenkov, Igor
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- estuary, salinity, numerical model, box model, Jadro, and Croatia
- Language:
- Slovak
- Description:
- The Jadro River with total length of 4.3 km and average annual discharge of 7.9 m3 s-1 is a relatively small river on the east coast of the Adriatic Sea, close to Split. Field campaign measurements were made to estimate salt intrusion in the Jadro estuary in July 2012. This measurement confirmed the stratified character of the estuary where fresh water flows in a thin layer over denser sea water. Furthermore, a numerical model was set up for simulating unsteady stratified flow without mixing between the layers. The model is applied for the Jadro River and field measurements are used for calibration. In addition, the steady state of stratification within the estuary is analyzed by a box model which assumes mixing between layers. Results of the numerical and the box models were compared. The flushing time estimated with the box model is approximately 1.5 day for summer steady conditions. Numerical analysis however shows that the residence time is much larger owing to flow unsteadiness.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
8. The Boundaries of Musical Humanism: Slavic Regions & Mediterranean Culture
- Creator:
- Jan Baťa
- Format:
- print, bez média, and svazek
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- 2011-2020, dějiny hudby, hudební konference, muzikologie, conferences on music, history of music, musicology, Dubrovník (Chorvatsko), Croatia, 78.01, 78:005.745, 78(091), and (046)
- Language:
- Czech
- Description:
- Příspěvek Jana Bati je zprávou o mezinárodní muzikologické konferenci, která se uskutečnila v chorvatském Dubrovníku ve dnech 26. až 28. března 2012., Jan Baťa., Rubrika: Konference, and Cizojazyčné resumé není.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
9. Tři sta let od narození R. J. Boškoviče
- Creator:
- Smolka, Josef
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- Bošković, Ruđer Josip, 1711-1787, 18. století, fyzici, matematici, výročí, physicists, mathematicians, anniversaries, Chorvatsko, Croatia, 6, and 53
- Language:
- Czech
- Description:
- V inventáři světové vědy má Chorvatsko jen málo záznamů - dokonce ještě méně, než jich mají třeba naše země. O to vnímavější bychom měli být k jeho historickým úspěchům. Patří k nim na prvním místě Rudjer Josip Boškovič (1711-1787), jezuita, ale zároveň i osvícenec, jehož dílo ovlivnilo vývoj věd snad ve všech evropských zemích., Josef Smolka., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
10. What's in a name in a war
- Creator:
- Jurajda, Štěpán and Kovač, Dejan
- Publisher:
- CERGE-EI
- Format:
- electronic, bez média, svazek, and 44 stran : ilustrace, tabulky, mapy.
- Type:
- model:monograph and TEXT
- Subject:
- Sociologie, 20. století, nacionalismus, rodná jména, sociální paměť, mezigenerační vztahy, ustašovci, jugoslávská válka (1991-1995), sociolingvistika, nationalism, first names, social memory, intergenerational relations, Ustashi, Yugoslav War (1991-1995), sociolinguistics, Chorvatsko, Croatia, 172.15, 81'373.231, 316.6:159.953, 316.4.051.63, 329.18(497.5)-051, 355.48(497.1)"1991/1995", 81'27, (497.5), (048.8), 18, and 316
- Language:
- English and Czech
- Description:
- Štěpán Jurajda, Dejan Kovač., Obsahuje bibliografii a bibliografické odkazy, and České a anglické resumé
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public