Yıl: 2022 Cilt: 15 Sayı: 1 Sayfa Aralığı: 204 - 216 Metin Dili: İngilizce DOI: 10.18185/erzifbed.997093 İndeks Tarihi: 09-08-2022

Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters

Öz:
In the recent decades, river regulation attempts, dams and wastewater discharge have not only influenced the water-quality and physical-habitat-structures of the rivers in a bad way but they have also threatened fish-stocks. The aim of this study is to examine the multi-relationship structure between the fish-species-density living in the Zilan-Stream, the largest stream of Lake-Van, and the physicochemical-parameters in this stream. Fish-density was found out with the records from the 12-stations located on Zilan-Stream. From the stations, water-temperature, habitat-score, pH, conductivity, dissolved-oxygen (DO), phosphate (PO4), nitrate (NO3), turbidity and height values were obtained. The correlation structure of the obtained parameters with fish-density was analyzed by canonical-correspondence-analysis (CCA). CCA axes fully explained the response of fish-density to physicochemical-parameters. As a result of the CCA, it was observed that the species concentrated in environments with less-conductivity and low nitrate/pH levels. Species were hypersensitive to altitude, and were found more intensely at mid/low altitudes. In addition, it was observed that the species concentrated in high-habitat score and oxygen-rich stations. It was observed that the species prefer medium/low temperature more and concentrate in environments with low-solids content. It is expected that the data obtained from this study will contribute to the management of areas to be protected in Zilan-Stream.
Anahtar Kelime: Zilan Stream fish density physicochemical parameters habitat variables canonical correspondence analysis (CCA)

Zilan Çayındaki (Van/ Türkiye) Balık Bolluğu, Dağılımı ve Bazı Fizikokimyasal Parametrelerle İlişkisi

Öz:
Son yıllarda, nehir düzenleme girişimleri, barajlar ve atık su deşarjı nehirlerin su kalitesini ve fiziksel habitat yapılarını olumsuz etkilemekle kalmadı, aynı zamanda balık stoklarını da olumsuz etkiledi. Bu çalışmanın amacı, Van Gölü'nün en büyük akarsuyu olan Zilan Çayı'nda yaşayan balık türlerinin yoğunluğu ile bu akarsudaki fizikokimyasal parametreler arasındaki çoklu ilişki yapısını incelemektir. Balık yoğunluğu Zilan Çayı üzerinde yer alan 12 istasyondan alınan kayıtlardan öğrenildi. İstasyonlardan su sıcaklığı, habitat skoru, pH, iletkenlik, çözünmüş oksijen (DO), fosfat (PO4), nitrat (NO3), bulanıklık ve yükseklik değerleri elde edildi. Elde edilen parametrelerin balık yoğunluğu ile korelasyon yapısı kanonik uyum analizi (KUA) ile incelendi. KUA eksenleri, balık yoğunluğunun fizikokimyasal parametrelere tepkisini tam olarak açıkladı. KUA sonucunda türlerin daha az iletken, düşük nitrat ve pH seviyelerine sahip ortamlarda yoğunlaştığı gözlemlenmiştir. Türler irtifaya aşırı duyarlıydı ve orta/düşük irtifalarda daha yoğun bulundu. Ayrıca türlerin habitat skoru yüksek ve oksijenden zengin istasyonlarda yoğunlaştığı gözlemlendi. Türün orta/düşük sıcaklığı daha çok tercih ettiği ve düşük katı içerikli ortamlarda yoğunlaştığı gözlemlenmiştir. Bu çalışmadan elde edilen verilerin Zilan Çayı'nda korunacak alanların yönetimine katkı sağlaması beklenmektedir.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA AKKUS M, HUYUT M (2022). Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. , 204 - 216. 10.18185/erzifbed.997093
Chicago AKKUS MUSTAFA,HUYUT Mehmet Tahir Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. (2022): 204 - 216. 10.18185/erzifbed.997093
MLA AKKUS MUSTAFA,HUYUT Mehmet Tahir Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. , 2022, ss.204 - 216. 10.18185/erzifbed.997093
AMA AKKUS M,HUYUT M Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. . 2022; 204 - 216. 10.18185/erzifbed.997093
Vancouver AKKUS M,HUYUT M Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. . 2022; 204 - 216. 10.18185/erzifbed.997093
IEEE AKKUS M,HUYUT M "Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters." , ss.204 - 216, 2022. 10.18185/erzifbed.997093
ISNAD AKKUS, MUSTAFA - HUYUT, Mehmet Tahir. "Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters". (2022), 204-216. https://doi.org/10.18185/erzifbed.997093
APA AKKUS M, HUYUT M (2022). Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 15(1), 204 - 216. 10.18185/erzifbed.997093
Chicago AKKUS MUSTAFA,HUYUT Mehmet Tahir Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi 15, no.1 (2022): 204 - 216. 10.18185/erzifbed.997093
MLA AKKUS MUSTAFA,HUYUT Mehmet Tahir Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol.15, no.1, 2022, ss.204 - 216. 10.18185/erzifbed.997093
AMA AKKUS M,HUYUT M Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2022; 15(1): 204 - 216. 10.18185/erzifbed.997093
Vancouver AKKUS M,HUYUT M Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2022; 15(1): 204 - 216. 10.18185/erzifbed.997093
IEEE AKKUS M,HUYUT M "Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters." Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 15, ss.204 - 216, 2022. 10.18185/erzifbed.997093
ISNAD AKKUS, MUSTAFA - HUYUT, Mehmet Tahir. "Abundance and Distribution of Fish in the Zilan Stream (Van/ Turkey) Its Relationship with Some Physicochemical Parameters". Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi 15/1 (2022), 204-216. https://doi.org/10.18185/erzifbed.997093