This study was carried out between May 2013 and December 2015 in the Göynük Stream (Bingöl) that is one of the most important tributaries of the Murat River. Considering the stream tributaries connected to the Göynük Stream, the samples were captured from five stations: Garip Village, Ilıcalar Creek, Derinçay, Taşlıçay and Kale. In this study, 1349 fish samples were recorded in a total of 21 taxa including 14 taxa belonging to Cyprinidae, 3 to Nemacheilidae, 1 to Cobitidae, 2 to Sisoridae, and 1 to Mastacembelidae. Therefore, Cyprinidae was the predominant family. 1057 (78%) samples from the 14 taxa of Cyprinidae and 292 (22%) samples from the remaining 7 taxa of other 4 families were reported at the end of the study. The most dominant species in this study were: Capoeta umbla, Capoeta trutta, and Squalius semae from Cyprinidae family. Garra rufa and Cyprinion macrostomum species, which are endemic to the Euphrates and Tigris basin and have an important place in the freshwater fish literature in the world, were particularly abundant in Ilıcalar Creek, a section of the Göynük Stream. The aim of this study was to determine the fish fauna of the Göynük Stream on which there are five irrigation pump stations and HES reservoirs.
This study was carried out to draw attention and create awareness on hunting materials prohibited to use and very dangerous for water ecology which is called Tırıvırı (Turkish name) and defined as a killer tor or Parachute Fishing Net (PFN). It was carried out in a part of Göynük Stream (Bingöl) creek bed at various times during the years 2015-2016-2017. The study had been carried out in about 40 km of the Göynük Stream, separated from the Murat River by three steps towards its upstream. These sections were taken as; Genç county railway bridge-Kervansaray (18 km), Kervansaray-Ilıcalar (11 km), and Ilıcalar-Alatepe (12 km). In these sections, there were found 45 in the first, 52 in the second, 33 in the third interval, and 130 in total old and new looking fishnet residues were determined of the creek bed. Throughout the study, only the Tırıvırı (PFN) trashes outside the stream could be counted, and it can be estimated that the amount that cannot be counted in the water is 3-4 times of those detected. It has been attempted to give the awareness that the hunting material is only a spending day activity whereas the adverse effects continue for years.
Some Cyprinid fish species: Cyprinion macrostomum (Heckel, 1843), Capoeta umbla (Heckel, 1843), Chondrostoma regium (Heckel, 1843), and Squalius cephalus (Linnaeus, 1758) living naturally in the Murat River, were investigated for Protozoan and Crustacean parasite fauna and their distribution. Fish samples were collected from different stations between July 2017 - June 2019, examined in the Bingöl University Zoology Research Laboratory, and the data were explained with various variables. The normality test revealed that the data were not normally distributed (p< 0.05), as with large samples, so non-parametric tests explained the data. A total of 365 fish were examined, and 100 fish (27.4%) were infected with at least one Protozoan or Crustacean parasite. Four different parasite species were recorded on the examined fish, namely Ichthyophthirius multifiliis and Trichodina sp. belonging to the phylum Ciliophora (Protozoan), Ergasilus sieboldi, and Lamproglena pulchella belonging to the phylum Arthropoda (Crustacean). As a result of this study, for the first time, Protozoan and Crustacean parasites of different cyprinid fish were examined according to the host species, seasonal distribution, host size, and new host records were reported for three parasites.
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