The Average Weight of Fish Caught by Anglers at the Croatian Section of the Sava River Catchment

Abstract The aim of this research is to compare the average individual weight of the four most important fish species in fisheries (Cyprinus carpio, Silurus glanis, Esox lucius and Sander lucioperca), caught by angling in different parts of the Sava River catchment in Croatia. Significant differences were expressed between the counties along the Sava River catchment, with the smallest specimens (p˂0.05) caught in Vukovar-Sirmium county. Artisanal fishery is mostly developed in that part of the Sava River, along with angling in both countries – Croatia and Bosnia and Herzegovina. Furthermore, the inflow of the River Bosna passes through urban and industrial cities of Bosnia and Herzegovina. It can be concluded that implementing recreational fishing surveys with the specific aim of obtaining data on average individual weight is useful for fishery management.

Download Full-text

Caractérisation de la reproduction des cobayes locaux (Cavia porcellus L.) élevés à Kipushi et Lubumbashi (RDC)

Journal of Animal & Plant Sciences ◽

10.35759/janmplsci.v43-2.2 ◽

2020 ◽

Vol 43.2 ◽

pp. 7415-7427

Author(s):

Kampemba M F ◽

Bilolwa B P ◽

Ntemunyi N C ◽

Mwangomb K D

Keyword(s):

Sex Ratio ◽

Guinea Pigs ◽

Growth Characteristics ◽

Great Variability ◽

Average Weight ◽

Cavia Porcellus ◽

Reproductive Parameters ◽

Individual Weight ◽

Average Individual

L’objectif de ce travail était d’étudier les caractéristiques de reproduction et de croissance des cobayes locaux. Soixante- six (66) cobayes ont été répartis en 2 lots (Lubumbashi et Kipushi) de 30 femelles subdivisées par lot de dix(10) élevés dans une cage de 1 m2 et 6 mâles avec un sex-ratio de 1 mâle contre 10 femelles et les saillies naturelles. Les résultats obtenus ont montré que le taux fertilité était élevé pour les femelles de Kipushi (86,67%) par rapport à celui enregistré à Lubumbashi (80,00%). Et le poids des femelles à la mise-bas et au sevrage n’était pas influencé par leur origine. Au niveau de la portée à la naissance ; Lubumbashi a présenté un nombre élevé (58%) que Kipushi (53%) pour des nés vivant. Par conséquent, le poids moyen individuel à la naissance (70,4g) le poids moyen individuel au sevrage (167,4g) le poids moyen par portée à la naissance 71,3g et au sevrage 168,03g étaient supérieures pour les animaux de Kipushi (p˂0,05). Alors que la portée au sevrage, le nombre de petits par sevrage était semblable entre sites (P˃ 0,05). En plus, la productivité numérique et pondérale était élevée pour les femelles de Kipushi (1,57) et faible pour celles de Lubumbashi (1,17). L’évolution du poids des cobayes variaient en fonction du site. Ces résultats sur les paramètres de reproduction dévoilent l’existence d’une grande variabilité entre ces deux populations locales, ce qui crée une occasion pour l’amélioration génétique des cobayes locaux. Characterization of the reproduction of local guinea pigs (Cavia porcellus L.) raised in Kipushi and Lubumbashi (DRC) ABSTRACT The objective of this work was to study the reproductive and growth characteristics of local guinea pigs. Sixty-six (66) guinea pigs were divided into 2 lots (Lubumbashi and Kipushi) of 30 females subdivided by lot of ten (10) reared in a 1 m2 cage and 6 males with a sex ratio of 1 male versus 10 females and natural projections. The results obtained showed that the fertility rate was high for Kipushi females (86.67%) compared to that recorded in Lubumbashi (80.00%). Moreover, the weight of the females at birth and at weaning was not influenced by their origin. At the level of the litter at birth, Lubumbashi presented a higher number (58%) than Kipushi (53%) for born babies. Therefore, the average individual weight at birth (70.4g) the average individual weight at weaning (167.4g) the average weight per litter at birth 71.3g and at weaning 168.03g were higher for the Kipushi animals (p˂0,05). While the litter at weaning, the number of pups per weaning was similar between sites (P˃ 0.05). In addition, numerical and weight productivity was high for Kipushi females (1.57) and low for Lubumbashi females (1.17). The evolution of the weight of the guinea pigs varied according to the site. These results on reproductive parameters reveal the existence of great variability between these two local populations, which creates an opportunity for the genetic improvement of local guinea pigs.

Download Full-text

GEOTECHNICAL CONDITIONS FOR CREATION OF THE VERTICAL SHAFT FOR RECONSTRUCTION OF OIL PIPELINE FROM TERMINAL BROD TO CROATIAN BORDER ON SAVA RIVER

Archives for Technical Sciences ◽

10.7251/afts.2015.0713.009d ◽

2016 ◽

Vol 1 (13) ◽

Author(s):

Nedjo Djurić ◽

Petar Mitrović

Keyword(s):

Reinforced Concrete ◽

Bosnia And Herzegovina ◽

Geological Structure ◽

Vertical Shaft ◽

Border Line ◽

Oil Pipeline ◽

Supporting Structure ◽

Sava River ◽

The Sava River

Reconstruction of share in an existing corridor of Terminal Brod to the Croatian border on the SavaRiver is part of the corridor, which continues to go across the river to Slavonski Brod. The existingcorridor will be replaced on a part of Sava River, where is planned a production of a tunnel with twovertical shafts on the banks of the river. Research in the field of the shafts and tunnels are divided intwo parts considering the border line between the countries Bosnia and Herzegovina and Croatia. Onthe right bank of the Sava River researches were conducted in the development of the vertical shaft.The complexity of the geological structure and the proximity of of the Sava River require thedevelopment of the vertical shaft from the supporting structure of reinforced concrete (RC) midriffs.Also, the flow of water into the shaft is largely expected from its bottom, which requires manufacturing

Download Full-text

Appraisal of geochemical composition and hydrodynamic sorting of the river suspended material: Application of time-integrated suspended sediment sampler in a medium-sized river (the Sava River catchment)

Journal of Hydrology ◽

10.1016/j.jhydrol.2020.125768 ◽

2020 ◽

pp. 125768

Author(s):

Mavro Lučić ◽

Nevenka Mikac ◽

Niko Bačić ◽

Neda Vdović

Keyword(s):

Suspended Sediment ◽

Suspended Material ◽

Geochemical Composition ◽

River Catchment ◽

Sava River ◽

The Sava River

Download Full-text

Hydroclimatic changes and drivers in the Sava River Catchment and comparison with Swedish catchments

AMBIO ◽

10.1007/s13280-015-0641-0 ◽

2015 ◽

Vol 44 (7) ◽

pp. 624-634 ◽

Cited By ~ 15

Author(s):

Lea Levi ◽

Fernando Jaramillo ◽

Roko Andričević ◽

Georgia Destouni

Keyword(s):

River Catchment ◽

Sava River ◽

The Sava River

Download Full-text

COENOLOGICAL SIMILARITIES OF DIATOMS IN WELLS AND IN OTHER WATER BIOTOPES IN BOSNIA AND HERZEGOVINA

Archives for Technical Sciences ◽

10.7251/afts.2018.1018.071c ◽

2018 ◽

Vol 1 (18) ◽

Author(s):

Milenko Ćurčić ◽

Dragica Milinković ◽

Olivera Petrović-Tomanić ◽

Dijana Đurić

Keyword(s):

Comparative Analysis ◽

Bosnia And Herzegovina ◽

Qualitative Data ◽

Anthropogenic Activity ◽

Seasonal Fluctuations ◽

Sava River ◽

Infraspecific Taxa ◽

Artesian Wells ◽

The Sava River

The research and determination of diatoms (Bacillariophyta) have been carried out in the area ofSemberija (Bosnia and Herzegovina) in several locations, which included 35 open shadoof wellsincurred by the anthropogenic activity many decades ago, and they represent artificial fresh waterecosystems. The algological material has been collected from wells in 9 villages, the Sava River, at thesite Bosanska Rača, the Drenovača pond in Velino Selo, artesian wells in Velino Selo and DonjiBrodac, and ephemeral puddles in the immediate proximity of the researched wells. In all investigatedhabitats of those locations 149 species and infraspecific taxa of Bacillariophyta in total have beenidentified, of which 89 (59.73%) were identified only in the investigated wells in Semberija.On the basis of comparative analysis results, it can be concluded that 45 (30.20%) of species andinfraspecific taxa of Bacillariophyta are common for the wells and other investigated localities (SavaRiver, Drenovača pond, artesian wells, ephemeral puddles). 61 species and infraspecific taxa ofBacillariophyta (40.93%) were identified in Sava River, 57 species and infraspecific taxa (38.25%) inDrenovača pond, 21 species in front of the artesian wells and 16 species and infraspecific taxa in theephemeral puddles. The density of population, i.e. the production of Bacillariophyta in the investigatedwells, shows similar seasonal fluctuations. The highest average number of plants per unit of area on themoss leaves at a depth of 50 cm of well walls amounted to 453702 items/cm2, and the lowest averagenumber of plants was recorded at the depth of 200 cm of well walls and amounted to 68.207 items/cm2.In order to have the objective results of the researched and identified diatoms in the mentioned biotopes,the numerical analysis of qualitative data on the structure of diatoms in similar biotopes, i.e. on theircoenological similarities, have been carried out.

Download Full-text

The co-existence of recreational and artisanal fisheries in the central parts of the Danube and Sava rivers

Croatian Journal of Fisheries ◽

10.1515/cjf-2017-0012 ◽

2017 ◽

Vol 75 (4) ◽

pp. 89-94

Author(s):

Tomislav Treer ◽

István Kubatov

Keyword(s):

Bosnia And Herzegovina ◽

Danube River ◽

Artisanal Fisheries ◽

Recreational Fisheries ◽

The Danube River ◽

Sava River ◽

Official Data ◽

The Sava River

Abstract The official data on recreational and artisanal fisheries in Croatia and Hungary were analysed. The data from Croatia relates to the entire Croatian section of the Danube River and to the section of the Sava River along the border with Bosnia and Herzegovina. The data from Hungary covers 60 km of the Danube River north of the Croatian border. Absolute catches in kilograms, as well as CPUE (kg per fisherman per year) by both groups in all three river sections varied from year to year without dramatic changes. Fishing with nets, artisanal fishermen differ from the anglers in two major ways: they are less selective and they catch bigger specimens. According to the official data, the existing ratio between recreational and artisanal fishermen in these three river sections does not negatively affect each other’s or overall fishing. Therefore, a conclusion can be drawn that medium-intensive artisanal fisheries qualify to co-exist with recreational fisheries.

Download Full-text

Determination of Cd, Pb and As in sediments of the Sava river by electrothermal atomic absorption spectrometry

Journal of the Serbian Chemical Society ◽

10.2298/jsc1001113m ◽

2010 ◽

Vol 75 (1) ◽

pp. 113-128 ◽

Cited By ~ 8

Author(s):

Simona Murko ◽

Radmila Milacic ◽

Marjan Veber ◽

Janez Scancar

Keyword(s):

Nitric Acid ◽

Analytical Procedure ◽

Electrothermal Atomic Absorption Spectrometry ◽

Absorption Spectrometry ◽

Magnesium Nitrate ◽

Matrix Modifier ◽

Reliable Determination ◽

Sava River ◽

The Sava River

The applicability of nitric acid, palladium nitrate and a mixture of palladium and magnesium nitrate as matrix modifiers was estimated for the accurate and reproducible determination of cadmium (Cd), lead (Pb) and arsenic (As) in sediments of the Sava River by electrothermal atomic absorption spectrometry, ETAAS. Decomposition of the samples was done in a closed vessel microwave-assisted digestion system using nitric, hydrochloric and hydrofluoric acids, followed by the addition of boric acid to convert the fluorides into soluble complexes. The parameters for the determination of Cd, Pb and As in sediments were optimized for each individual element and for each matrix modifier. In addition, two sediment reference materials were also analyzed. In determination of Cd and Pb, nitric acid was found to be the most appropriate matrix modifier. The accurate and reliable determination of Cd and Pb in sediments was possible also in the presence of boric acid. The use of a mixture of palladium and magnesium nitrate efficiently compensated for matrix effects and enabled the accurate and reliable determination of As in the sediments. Quantification of Cd and As was performed by calibration using acid matched standard solutions, while the standard addition method was applied for the quantification of Pb. The repeatability of the analytical procedure for the determination of Cd, Pb and As in sediments was ?5 % for Cd, ?4 % for Pb and ?2 % for As. The LOD values of the analytical procedure were found to be 0.05 mg/kg for Cd and 0.25 mg/kg for Pb and As, while the LOQ values were 0.16 mg/kg for Cd and 0.83 mg/kg for Pb and As. Finally, Cd, Pb and As were successfully determined in sediments of the Sava River in Slovenia.

Download Full-text