Inter-population variability in morphological traits and fecundity of Alburnus alburnus (Linnaeus, 1758) from Bosnia and Herzegovina was analysed in this study. The results of the analyses based on 21 standard measurements and six meristic characters have shown the highest variation between distance between pelvic (ventral) fins and anal aperture. Analysis of variance (ANOVA) indicate statistically significant differences between six populations. Differences among meristic characters have been tested by Multiple Comparisons Kruskal-Wallas. Obtained results indicate statistically significant difference among samples for number of branched rays for caudal fin (KA/Ca), lateral line scales (Le) and a number of gill rackers (Rac). Discriminant function analysis indicate characters that had the strongest effect on the geographical variation between A. alburnus samples from Bosnia and Herzegovina. Characters with the strongest discriminant power are: preanal distance, length of pectoral fin, length of the ventral (pelvic) fin, minimum body height, caudal fins branched rays, and pelvic fins branched rays.Values for weight of the gonads and gonadosomatic index (GSI) have not shown any statistically significant difference among observed bleak populations. Regression analysis has been used to estimate the relations between GSI and standard length, body, and gonads weight. The gonadosomatic index has shown positive, non substational, relationship to gonads weight.

This chapter contains a few concluding remarks. This book is the first attempt at a comprehensive analysis of non-violent contacts between the Partisans and the German occupation authorities in Yugoslavia in the Second World War. Far from being the final word on the topic, it is a starting point for further research on various aspects of POW history. Frequent exchanges of able-bodied prisoners between the occupation forces and a resistance movement, partly through a cartel negotiated directly between their high commands, was a distinctive feature of the Second World War in Yugoslavia. It was probably the only place in war-torn Europe where representatives of two irreconcilable ideologies, Communism and Nazism, met regularly at the negotiating table. Both were primarily motivated by the desire to save their own men, but the talks did mitigate, however marginally, the horrors of the war.

This chapter examines prisoner exchanges that various units negotiated independently of the Pisarovina cartel. To provide the proper context, the chapter covers not only the contacts from 1944 and 1945, but also those which took place in the year preceding the establishment of the neutral zone. The willingness of a unit commander to offer or accept an exchange was largely dependent on the manner in which the high commands on both sides decided to wage the war. Therefore, the centrally negotiated agreement from early 1944 had a huge impact on the conduct of the war. Furthermore, several instances of German-Partisan talks pertaining to issues other than prisoner swapping are discussed as well.

After the downfall of the Užice Republic in late November 1941, the focus of the war was transferred from occupied Serbia to the neighboring Independent State of Croatia. Unlike in Serbia, there were comparatively few encounters between the Partisans and the Germans west of the Drina River for the better part of 1942. Nevertheless, the Partisans in the NDH made several local attempts to exchange prisoners. After a group of German civilians was captured in Livno in August 1942, the exchange of prisoners was increasingly negotiated between the highest commands of both sides. These talks were perceived by all as a means to sound out the enemy's intentions and political aims. Consequently, both the Partisans and the Germans were keen to continue them into 1943.

Serbia, with its large population and rich mineral and agricultural resources, was the Kingdom of Yugoslavia's spiritual and economic heartland. It also hosted the Yugoslav capital, Belgrade, and linked Central Europe with Greece and Turkey via strategically important lines of communication. These facts escaped neither the Germans nor the guerrilla movements which came into life after the war had begun. Therefore, Serbia enjoyed a special position in Yugoslavia in terms of the occupation system and how the occupiers dealt with the resistance they encountered. The necessities of war would force the opposing sides in other parts of the country to agree to a limited de-escalation of violence when prisoners were involved. Serbia, apart from the first months of the war, would remain excluded from these arrangements.

Few episodes from the war in Yugoslavia have received as much attention from scholars and the general public as the so-called March Negotiations of 1943. The bulk of the NOVJ, including thousands of wounded, found itself totally surrounded in the Neretva River Valley by a heterogeneous coalition of enemy forces. With the choice of possible escape routes rapidly dwindling, Tito decided to use diplomacy. Under the guise of prisoner exchange, his envoys sought to obtain recognition of the NOVJ as a regular army from the Germans, as well as a temporary cease-fire, which would enable them to concentrate all their forces for a showdown with the Chetniks. In return, the Partisans appeared willing to discuss the possibility of a negotiated settlement with the Axis powers, and did not hide their intention to oppose a British landing in Yugoslavia with all available means.