Population dynamics and stock assessment of Capoeta umbla (Heckel, 1843) in Lake Hazar, Elazığ, Turkey

Elazığ Hazar Gölü’ndeki Capoeta umbla (Heckel, 1843) populasyonunun av miktarları, boy frekansları, büyüme parametreleri ve ölüm oranları gibi populasyon parametreleri ve stok büyüklüğü incelendi. Populasyona ait boy ağırlık ilişkisi W= 0.070xTL2,39 (n= 364; R2 = 0.95) ve von Bertalanffy büyüme parametreleri ise; L∞=53.77 cm; K=0.16; t0=-1.84 ve W∞=957.38 g olarak hesaplandı. C. umbla populasyonunda doğal ölüm oranı M=0.363; balıkçılık ölüm oranı F=0.349 ve total ölüm oranı Z=0.712 olarak bulundu. Yıllık avlanan ürün miktarı 25721 kg (107544 adet) olup avlanan balıkların ortalama büyüklüğü 28.7 cm (239.4 g) olarak hesaplandı. Markalama yöntemine göre stok büyüklüğü bioymas olarak 91601 kg (CI(%95): 85163-99091 kg) ve sayısal olarak ise 382627 adet (CI(%95): 355736-413916 adet) olarak hesaplandı. Boya dayalı cohort analizine göre ise ortalama biyomas 95256 kg (CI(%95): 55079-263225 kg) ve sayısal olarak ise 358105 adet (CI(%95): 240251-868729 adet) olarak tahmin edildi. Ürün-Biyomas ilişkisine göre sürdürülebilir maksimum ürün (MSY) 27070 kg olarak hesaplandı.

Elazığ Hazar Gölü'nde Yaşayan Capoeta umbla (Heckel, 1843)'nın stok tahmini ve populasyon dinamiği

Population parameters such as growth, mortality rates, annual catch and stock size of Capoeta umbla (Heckel, 1843) population in Lake Hazar were investigated. Length and weight relationships of the population was W= 0.070xTL 2.39 (n= 364; R2 = 0.95) and von Bertalanffy Growth Parameters were estimated as L∞= 53.77 cm; K=0.16; t 0=-1.84 and W∞=957.38 g. Natural mortality rate (M) was 0.363 while fishing mortality (F) and total mortality rate (Z) were 0.349 and 0.712, respectively. Annual catch was 25721 kg (107544 individuals) and mean fish size was 28.7 cm (239.4 g). Estimated stock size based on mark and recapture method was 91601 kg (CI(95%): 85163-99061 kg) and 382627 individuals (CI(95%): 355736- 413916 individuals). Stock size was also assessed by using length-based cohort analysis and was found to be 95256 kg (CI(95%):55079-263225 kg) and 358105 individuals (CI(95%): 240251-868729 individuals). According to yield-biomass relationships, estimated maximum sustainable yield (MSY) was 27070 kg.

___

Turkish Journal of Fisheries and Aquatic Sciences-Cover
  • ISSN: 1303-2712
  • Başlangıç: 2015
  • Yayıncı: Su Ürünleri Merkez Araştırma Enstitüsü - Trabzon
Sayıdaki Diğer Makaleler

Comparison of nutrition compositions of juvenile paddlefish (Polyodon spathula) fed with Live feed and formula feed

Pei-Song SHI, Yu-Ting ZHU, Qin WANG, Qian-Hong GU, Bang-Xi XIONG

Mitochondrial cytochrome b sequence variation in three sturgeon species (A. stellatus Pallas, 1771, A. gueldenstaedtii Brandt, 1833, H. huso Linnaeus, 1758) from the Black Sea coasts of Turkey

YILMAZ ÇİFTCİ, Oğuzhan EROĞLU, Şirin FİRİDİN

Immunohistochemical and partial characterization studies of carbonic anhydrase in the brain of teleost fish Cyprinus carpio

S. M. RAHIM, S. J. ABDURRAHMAN, E. M. TAHA, H. F. HASSAN, K. D. SIMON, A. G. MAZLAN

Effect of high dietary carbohydrate on growth, serum physiological response, and hepatic heat shock protein 70 expression of wuchang bream (megalobrama amblycephala) at two temperatures

Chuanpeng ZHOU, Bo LİU, Jun XIE, Xianping GE

Histopathological and biochemical effects of humic acid against cadmium toxicity in brown trout gills and muscles

GONCA ALAK, MUHAMMED ATAMANALP, AHMET TOPAL, HARUN ARSLAN, ERTAN ORUÇ, SERDAR ALTUN

The Effect of extracted salt from Urmia Lake on the growth, βeta- carotene and chlorophyll a content of halophilic alga Chlorella sp.

Mojtaba FATHİ, Saeed MESHKINI, Roya NADIRI

Metal concentrations in different tissues of cuttlefish (sepia officinalis) in İskenderun Bay, northeastern mediterranean

ÖNDER DUYSAK, BEYZA ERSOY ALTUN, Meltem DURAL

Thermal tolerance, oxygen consumption and stress respThermal Tolerance, oxygen consumption and stress response in Danio dangila and Brachydanio rerio (Hamilton, 1822) Acclimated to Four Temperaturesonse in Danio dangila and Brachydanio rerio (Hamilton, 1822) acclimated to four temperatures

Sullip Kumar MAJHI, Sanjay Kumar DAS

Heavy metal concentration in fishes from the coastal waters of kapar and Mersing, Malaysia

F. H. BASHIR, M. S. OTHMAN, A. G. MAZLAN, S. M. RAHIM, K. D. SIMON

Population dynamics and stock assessment of Capoeta umbla (Heckel, 1843) in Lake Hazar, Elazığ, Turkey

MEHMET ZÜLFÜ ÇOBAN, Fatih GÜNDÜZ, Ferhat DEMİROL, Gürel Nedim ÖRNEKÇİ, Gökhan KARAKAYA, İbrahim TÜRKGÜLÜ, AHMET ALP