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Biometric Traits and Ecology of Sichel, Pelecus cultratus (Linnaeus, 1758) with Notes on its Recent Status in the Middle Flow of the Danube River Tributaries (Slovenia and Croatia)

Biometric Traits and Ecology of Sichel, Pelecus cultratus (Linnaeus, 1758) with Notes on its Recent Status in the Middle Flow of the Danube River Tributaries (Slovenia and Croatia)

Merica Slišković1, Meta Povž2, Marina Piria3,*, Goran Jakšić4, Ana Gracanin5 andGorana Jelić Mrčelić1

1University of Split, Faculty of Maritime Studies, Ruđera Boškovića 37, 21000 Split, Croatia
2Umbra, Institute of Natural Sciences, Ulica bratov Ucakar 108, 1000 Ljubljana, Slovenia
3University of Zagreb, Faculty of Agriculture, Department of Fisheries, Beekeeping, Game Management and Special Zoology, Svetošimunska 25, 10000 Zagreb, Croatia
4AQUATIKA–Freshwater Aquarium Karlovac, Branka Čavlovića Čavleka 1a, 47000 Karlovac, Croatia
5University of Wollongong, Centre for Sustainable Ecosystem Solutions, School of Biology, Northfields Ave. Wollongong, NSW 2522, Australia

*      Corresponding author: mpiria@agr.hr

 

ABSTRACT

Available knowledge on the sichel, Pelecus cultratus, fromthe middle Danube River and its tributaries is insufficient. This study aims to provide new data on the morphology and ecology of sichel from the Mur River, and its distribution in Croatia and Slovenia. In 2009, the schooling of sichel were observed at a high-water level in the Mur River of Slovenia. In total, 14 specimens were sampled by fishermen using sport fishing techniques. The age, condition, length-weight relationship (LWR), 20 morphometric and four meristic traits, were analysed. Fulton condition coefficient and LWR value indicated that sichel specimens’ were well adapted to the environmental conditions. Positive allometry in both males and females were observed (W = 0.004 L3.119). This represents the first LWR dataset for sichel. The morphometric and meristic traits values from this research add to the limited data that is presently available. By comparing historical and recent data on sichel distribution, we observed a dramatically declining trend. Therefore, further research and targeted protection of the sichel in the middle Danube River tributaries are urgently required.
 

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Pakistan Journal of Zoology

December

Vol. 50, Iss. 6, Pages 1999-2398

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