Das Verhältnis von Gesamtlänge und Körpergewicht und der Konditionsfaktor des Giebels (CARASSIUS GIBELIO) in drei Stauseen

Cilj rada je odrediti dužinsko-masene odnose i faktor kondicije babuški iz tri hidroakumulacija (Modrac, Vidara i Sniježnica) sa područja sjeveroistočne Bosne i Hercegovine. Materijal i metode: Ukupan uzorak je iznosio 80 jedinki. Mjerenja totalne i standardne dužine tijela i mase tijela izvedena su na terenu pomoću ihtiometra i decimalne vage. Statistička obrada je izvedena pomoću Univarijatne analize varijance (ANOVA) za utvrđivanje razlika morfometrijskih karakteristika uspoređivanih jedinki između tri lokaliteta (razlike između uzoraka populacija). Rezultati: Najveća prosječna totalna dužina babuške je u akumulaciji Vidara. Masa tijela babuške znatno je veća (p<0,05) u babuški iz akumulacija Modrac i Vidara u usporedbi sa Sniježnicom. Zaključci: može se zaključiti da su dužina i masa tijela babuške značajno veće (p<0,05) u akumulacijama Vidara i Modrac u usporedbi sa Sniježnicom. Babuške iz akumulacije Modrac i Vidara imale su pozitivan, dok su babuške iz Sniježnice imale negativan alometrijski rast.The paper presents a determination of length-weight relations and the fitness factor for Prussian carp from three reservoirs (Modrac, Vidara and Sniježnica), which are located in south-eastern Bosnia-Herzegovina. Material and methods: The total sample comprised of 80 specimens.The measurements of the total and standard body length and body weight were conducted in the field by using ichthyometerand decimal scale. The univariate analysis of variance (ANOVA) was applied during statistical processing for determining the differences in morphometric characteristics of the used specimens from the three locations(differences among population samples). Results: The largest average total length was observed in the Prussian carp from the reservoir Vidara. The body weight of the Prussian carp from the reservoirs Modrac and Vidara is significantly higher (p<0.05) when compared to those from the reservoir Sniježnica.Conclusions:It can be concluded thatthe body length and body weightof the Prussian carpfrom the reservoirs Modrac and Vidara is significantly larger (p<0.05)when compared to those from the reservoir Sniježnica. The Prussian carp from the reservoirs Modrac and Vidara has undergone positive allometric growth, which has been negative in the Prussian carp from the reservoir Sniježnica.Das Ziel des Beitrags ist die Verhältnisse von Gesamtlänge und Körpergewicht sowie den Konditionsfaktor von Giebeln in drei Stauseen (Modrac, Vidara und Sniježnica) im nordöstlichen Teil von Bosnien und Herzegowina zu ermitteln. Material und Methoden: die Gesamtprobe betrug 80 Fischeinheiten. Die Gesamt- und die Standardlänge des Körpers sowie das Gesamt- und das Standardgewicht wurden mittels Ichthyometers und Dezimalwaage gemessen. Die Daten wurden mit der einfaktoriellen Varianzanalyse (ANOVA) analysiert, um die Unterschiede in morphometrischen Eigenschaften von den Proben an drei Standorten (Unterschiede zwischen den Fischbeständen) zu bestimmen. Ergebnisse: die größte durchschnittliche Gesamtlänge des Giebels wurde im See Vidara bestimmt. Das Körpergewicht des Giebels ist wesentlich größer (p<0,05) in den Seen Modrac und Vidara als im See Sniježnica. Schlussfolgerungen: Es kann geschlossen werden, dass die Gesamtlänge und das Gewicht des Giebels wesentlich größer (p<0,05) in den Seen Vidara und Modrac im Vergleich zum See Sniježnica sind. Bei den Giebeln aus den Seen Modrac und Vidara war das Wachstum positiv allometrisch, während es bei den Giebeln aus dem See Sniježnica negativ allometrisch war

Effect of thermal stress of short duration on the red blood cell parameters of Barbus balcanicus Kotlik, Tsigenopulos, Rab, Berrebi, 2002

In this study, red blood cell parameters of Barbus balcanicus Kotlik, Tsigenopulos, Rab, Berrebi, 2002 subjected to acute thermal stress were investigated. Fish were caught by electro fishing in the Suturlija river, a small tributary of the river Vrbas (N latitude 44˚44' 38˝, E longitude 17˚ 09' 10˝) in summer (July) and transported to the laboratory. Fish were randomly distributed in four aquaria of 30 L each. In all the four aquaria, the water temperature was continuously kept at 19°C by appropriate devices. After period of adaptation (three weeks), half of the fish (24) were used as a control group while the other 24 were subjected to thermal stress by raising the water temperature to 29°C (10°C increase) in 60 min. In both control and thermally treated, fish blood was collected by heart puncture according to “Animal welfare act“. Analyses were performed with native blood, without addition of any anticoagulant and the values of red blood cell count (RBC), haemoglobin concentration, packed cell volume (PCV), Corpuscular Volume (MCV), Mean Corpuscular Haemoglobin (MCH) and Mean Corpuscular Haemoglobin Concentration (MCHC) were determined. In the thermally treated fish, the values of PCV and MCV increased (p = 0.0003 and p = 0.0147 respectively), and those of MCHC decreased substantially (p = 0.0001).Keywords: Haematology, temperature, Barbus balcanicusAfrican Journal of Biotechnology Vol. 12(18), pp. 2484-249

IHTIOFAUNA MOČVARNOG EKOSUSTAVA BARDAČA (BOSNA I HERCEGOVINA)

The ichthyofauna composition of the wetland ecosystem in the Bardača area (Bosnia and Herzegovina) was described with the aim of indication on the richness and necessary protection of the biodiversity of this sensitive swamp region. During 2004, qualitative and quantitative fish samplings were carried out, according to seasons, in Matura and Brzaja rivers, the main tributaries of the drainage area around the Sava River. Fish samplings were carried out using an electro–generator pulse and removal method. Analysis of the sampled fishes consisted of species determination and estimation of yield for average density and biomass (N/m2 or m3 and g/m2 or m3). It could be said that during one year examinations, the presence of 24 fish species from 7 families has been determinate. In addition, the analysis of fish diversity was carried out by means of species richness, Shannon–Weaver index, evenness and Simpson index. According to analyzed data, it could be observed that 2 allochtonous pest species, Carassius auratus gibelio and Ictalurus nebulosus presents the most dominant fish species in these waters in almost all sampling seasons.U ovom je radu opisan sastav ihtiofaune močvarnog ekosustava Bardače (Bosna i Hercegovina), i to radi identifikacije bogatstva i prijeko potrebne zaštite biodiverziteta ove osjetljive močvarne regije. Tijekom godine 2004. izvršena je kvalitativno–kvantitativna analiza ribljeg naselja iz dviju rijeka, Mature i Brzaje, koje su pritoci rijeke Save na ovom području. Uzorkovanje riba provođeno je elektroagregatom za lov ribe, a izlovi su obavljani tijekom svih godišnjih doba. Analiza ulovljenih riba sastojala se od determinacije vrsta i proračuna njihove prosječne biomase i abundance (N/m2 ili m3 i g/m2 ili m3). Može se reći da je tijekom ovoga jednogodišnjeg ispitivanja utvrđena prisutnost 24 riblje vrste iz sedam porodica. Analiza diverziteta spomenutih ribljih vrsta utvrđena je računanjem sljedećih indeksa diverziteta: bogatstvo brojnosti vrsta (richness), Shannon–Weaverov indeksa, indeks ravnomjernosti distribucije vrsta (evenness) i Simpsonov indeks. Prema dobivenim podacima, zaključeno je da su dvije introducirane »korovske« vrste riba, Carassius auratus gibelio i Ictalurus nebulosus, bile najdominantnije vrste u ovim vodama, i to u gotovo svim godišnjim dobima

FOOD COMPOSITION OF GRAYLING Thymallus thymallus L., FROM THE RIVER KRUŠNICA

Sportskoribolovnom tehnikom lovljen je lipljen (Thymallus thymallus) na rijeci Krušnici. Ukupno je ulovljeno i analizirano 118 primjeraka. Ciljevi ovog istraživanja bili su dobiti podatke o ishrani ove vrste riba u prirodnim uvjetima sredine te utvrditi sastav sadržaja probavila. Utvrđeno je da se lipljen iz rijeke Krušnice dominantno se hrani svojtama iz skupine Amphipoda i Ephemeroptera, dok najveći broj svojti pripada skupini Diptera. Sekundarnu ishranu čine Trichoptera sa Hydropsyche sp. kao dominantnijom svojtom, zatim Gastropoda sa dominacijom Valvata sp., Coleoptera i Formicidae. Lipljen se povremeno hrani svojtama iz skupina Isopoda, Hirudinea, Plecoptera, Oligochaeta, Heteroptera, Aranea, Lepidoptera, Hydracarina i Hymenoptera kao i biljnim detritusom.Total of 118 specimens of grayling (Thymallus thymallus) is caught with sport fishing techniques in the river Krušnica. The objectives of this research was to obtain data about the diet composition of these species in natural biotopes. Dominant food of grayling from the river Krušnica were Amphipoda and Ephemeroptera, while the most abundant number belonging to the group of Diptera. Secondary diet consists of Trichoptera with Hydropsyche sp. as dominant species, then Gastropoda with Valvata sp., Coleoptera and Formicidae. Grayling occasionally consume Isopoda, Hirudinea, Plecoptera, Oligochaeta, Heteroptera, Aranea, Lepidoptera, Hydracarina and Hymenoptera, as well as plant detritus

Condition factor and organosomatic indices of rainbow trout (Onchorhynchus mykiss, Wal.): From different brood stock

Condition factor and organosomatic indices of fish represent a way of monitoring environmental factor influence on fish. The rainbow trout (Oncorhynchus mykiss, Wal.) individuals that were used in the work originated from different brood stock and different fish farms. Spawning was carried out on five selected fish farms. After that, the breeding eggs were delivered in Klasnik hatchery where the same environmental conditions were provided during embryonic development and cultivation of all five groups of individuals. As a conditioning factor in this work Fulton's condition factor and coefficients of the heart, liver and spleen were analyzed. In all individuals we determined the total length, standard length and body mass. In total, fifty individuals, which were divided into five groups form five brood stock, were analyzed. The results show significantly different values for the condition factor and organosomatic indices between some of the analyzed groups

THE EFFECT OF TEMPERATURE CHANGE ON ERYTHROCYTE PROFILE OF Carassius gibelio

Istraživanje promjene temperature vode na eritrocitni profil provedeno je na jedinkama babuške (Carassius gibelio) s područja Bardače (BiH). Istraživanjem je obuhvaćeno trideset osam jedinki koje su bile podijeljene u dva akvarija, prilagođene na eksperimentalne uvjete, a potom podvrgnute različitom temperaturnom režimu. Kontrolna grupa jedinki imala je konstantnu temperaturu vode 10ºC, dok je kod tretirane grupe jedinki temperatura vode postupno povećana na 20ºC u periodu od tri dana. Provedena analiza eritrocitnog profila koji obuhvaća: broj eritrocita, koncentraciju hemoglobina, hematokrit, MCV, MCH i MCHC, pokazuje da jedinke koje su izlagane povećanju temperature su imale značajno veće vrijednosti broja eritrocita i hematokrita, dok su jedinke kontrolne grupe imale veće vrijednosti MCH i MCHC.A research on the effect of water temperature change on erythrocyte profile was conducted on Prussian carp (Carassius gibelio) from the Bardača area (BiH). The study included 38 individuals which were divided into two aquaria, adapted to experimental conditions and then subjected to different temperature regime. The control group had constant water temperature of 10ºC, while for treated fish water temperature was gradually increased to 20ºC for three days. Conducted analysis of erythrocyte profile, which includes erythrocyte count, hemoglobin concentration, packed cell volume, MCV, MCH and MCHC showed that individuals exposed to temperature increase had significantly higher values of erythrocyte count and packed cell volume, while control individuals had higher values of MCH and MCHC

Morphometric and Physiological Characteristics of Brown Trout (Salmo trutta) from the Ponor River

This paper presents the data related to morphometric and physiological (hematological) characteristics of brown trout (Salmo trutta) from the Ponor River. This river rises near the village Podrašnica (municipality of Mrkonjić Grad), sinks above the ground and after a while, near the settlement of Krupa na Vrbasu, appears as a source of the Krupa River (tributary of the Vrbas River). Fish sampling was performed during the summer of 2015 and during this period 22 Salmo trutta units were caught (11 females and 11 males). On that occasion, several morphometric (total and standard body length) and hematological traits (Hct-hematocrit, Hb-hemoglobin and MCHC - mean corpuscular hemoglobin concentration), body mass and Fulton’s condition factor were analyzed. The average value for total body length was 18.85 cm and for standard body length it was 16.85 cm; the mean value for body mass was 80.38 g, and for Fulton’s condition factor 1.41. In case of hematological parameters, the average value for Hct was 0.39 l/l, Hb 70.62 g/l and MCHC 180.64 g/l erythrocytes. The estimated parameters can serve as indicators for the condition of these aquatic organisms, and indirectly, the state of their environment

HEAVY METALS IN WATER AND MUSCLE TISSUE OF TROUT (Salmo trutta) IN THE RIVER UNA

This paper presents the results of research on the content of heavy metals in water and fish of the River Una. During 2012 and 2013 water and fish samples were taken from four locations, and research was conducted in two seasons: autumn 2012 (I season) and spring 2013 (II season). The caught fish at all locations belonged to the species of trout (Salmo trutta). The content of Pb, Cu and Cd was determined by means of an atomic absorption spectrophotometer “Perkin Elmer” AAnalyst - 800, using a flame photometry technique. The content of Pb, Cu and Cd was below the level of maximum allowable concentrations (MAC). The research of heavy metal presence in the water of the River Una indicated the value of Pb lower than 0,0010 mg/l, Cu lower than 0.4 mg/l, and Cd lower than 0,1 mg/l. Heavy metals in fish muscle tissue were directly related to the pollution of river. Lead content in muscle tissue of fish caught in the River Una was the highest in samples which were caught at the fourth location, with 0,205 mg kg-1, while the highest copper content was identified in the same location, 0,1280 mg kg-1. The content of cadmium in fish muscle tissue samples was below 0,1 mg kg-1. The heavy metal content in the tested samples of water and fish the River Una was below the allowable limit. These results indicate that the pollution of the River Una did not reach a significant level