To determine the population density of the Potamon potamios (Olivier, 1804) species in Gölbaşı (Fish) Lake (Gölbaşı Village - Kırıkhan - Hatay), samples were collected in July 2020 and 2021. Once a week during the period of 3 weeks, a total of 6 times. Wire cages with one-sided doors that could open inwards were used to capture the fish samples. Fish remains as bait was placed in the cages. To avoid recounting the same individuals, individuals were marked after each count with a water-resistant pen that can be seen in purple light. Collected samples were examined live at the sampling point. During the examination of the samples, male and female individuals were counted and recorded. Enumerated individuals were released back into their habitats after marking. At the end of the census, it was observed that there was a decrease in the population in 2021 with the effect of low rainfall and drought. While the total number of samples detected in 2020 was 196, 84 individuals were detected in 2021. It is thought that the reason for the sudden decrease in the number of individuals is the decrease in the groundwater level due to low precipitation and the withdrawal in the lake level.
Potamon potamios (Olivier, 1804) türünün Gölbaşı (Balık) Gölü'ndeki (Gölbaşı Köyü - Kırıkhan - Hatay) popülasyon yoğunluğunun belirlenmesi amacıyla Temmuz 2020 ve 2021'de belirlenen örnekleme noktalarından örnekler toplanmıştır. Örnekleme 3 hafta boyunca haftada bir olmak üzere toplam 6 kez yapılmıştır. Numuneleri yakalamak için tek taraflı kapıları içeriye doğru açılabilen tel kafesler kullanılmıştır. Kafeslerin içine yem olarak balık kalıntıları konmuştur. Aynı bireylerin tekrar sayılmasını engellemek için, her sayımdan sonra bireyler suya dayanıklı ve mor ışıkta görülebilen kalemle işaretlenmiştir. Örneklerin incelenmesi sırasında, dişi ve erkek bireylerin sayımları yapılmış ve kaydedilmiştir. Sayılan bireyler, işaretlemenin ardından habitatlarına geri bırakılmıştır. Nüfus sayımı sonunda düşük yağış ve kuraklığın da etkisiyle 2021 yılında nüfusta azalma olduğu gözlemlendi. 2020 yılında tespit edilen toplam örnek sayısı 196 iken, 2021 yılında 84 örnek tespit edilmiştir. Birey sayısındaki ani düşüşün nedeninin, yağışların az olması nedeniyle yeraltı su seviyesinin düşmesi ve göl seviyesinin çekilmesi olduğu düşünülmektedir.
Primary Language | English |
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Subjects | Conservation and Biodiversity |
Journal Section | Research Articles |
Authors | |
Early Pub Date | December 16, 2022 |
Publication Date | December 15, 2022 |
Submission Date | October 18, 2022 |
Acceptance Date | November 12, 2022 |
Published in Issue | Year 2022 Volume: 15 Issue: 3 |
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Web of Science {Zoological Records Indexed] Clavariate Analytic, Medical Reads (RRS), CrossRef;10.46309/biodicon.
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❖ Correspondance Adres: Prof. Ersin YÜCEL, Sazova Mahallesi, Ziraat Caddesi, No.277 F Blok, 26005 Tepebaşı-Eskişehir/Türkiye
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❖ Biological Diversity and Conservation/ Biyolojik Çeşitlilik ve Koruma
❖ ISSN 1308-5301 Print; ISSN 1308-8084 Online
❖ Start Date Published 2008
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❖ Editör / Editor-In-Chief : Prof.Dr. Ersin YÜCEL, https://orcid.org/0000-0001-8274-7578