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Dive into the research topics where Mahmut Yilmaz is active.

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Featured researches published by Mahmut Yilmaz.


Journal of Freshwater Ecology | 2010

Length-weight and length-length relationships of Capoeta sieboldii from Hirfanlı Dam Lake, Turkey.

Savaş Yilmaz; Okan Yazıcıoğlu; Mahmut Yilmaz; Nazmi Polat

ABSTRACT This study describes the length-weight (LWR) and length-length relationships of Capoeta sieboldii from Hirfanli Dam Lake, Turkey. Condition factor (K) was also calculated per fork length class of females and males. A total of 170 individuals was collected from monthly sampling between March 2004 and August 2005. LWRs of females and males were not statistically different with and within season. LWRs indicated isometric growth in both sexes. The slopes of LWRs were 3.171 for females and 2.980 for males. All correlations among fork length, total length, and standard length were highly significant (P>0.001, r2<0.92). The values of K ranged from 1.21 to 1.43 for females and from 1.12 to 1.36 for males.


Journal of Limnology and Freshwater Fisheries Research | 2018

Reproduction Properties of Wels Catfish (Silurus glanis, L., 1758) Inhabiting Sıddıklı Reservoir

Ramazan Yazıcı; Mahmut Yilmaz; Okan Yazicioğlu

Bu calismada Siddikli Baraji’nda yasayan Yayin Baligi, Silurus glanis ’ nin bazi ureme ozellikleri (esey orani, ureme peryodu, yumurta capi ve fekondite) arastirilmistir. Eylul 2015- Agustos 2016 tarihleri arasinda Siddikli Baraji’nin farkli bolgelerinden toplamda 200 ornek yakalanmistir. Esey orani 0,88:1,00 (Disi: Erkek) olarak hesaplanmistir. Disi:Erkek orani beklenen 1,00:1,00 degerinden istatistiksel olarak farkli cikmamistir (χ2= 0,841, P>0,05). Gonadosomatik indeks degerlerine gore, Siddikli Baraji’ndaki Yayin baliklarinin ureme sezonunun Nisan-Haziran aylari arasinda oldugu belirlenmistir. Ortalama total fekondite ve yumurta capi sirasiyla 46343 yumurta/birey ve 1,758 mm olarak hesaplanmistir. Nisbi fekondite her bir kilogram balik agirligina karsi 13000 yumurta olarak belirlenmistir. Fekondite-boy ve Fekondite-agirlik arasinda kuvvetli iliskiler tespit edilmistir (r 2 >0,80).


International Journal of Morphology | 2016

Sagittal Otolith Morphology of Sharpsnout Seabream Diplodus puntazzo (Walbaum, 1792) in the Aegean Sea

Derya Bostanci; Mahmut Yilmaz; Serdar Yedier; Gülşah Kurucu; Seda Kontaş; Muammer Darçin; Nazmi Polat

Los indices morfologicos, biometria y la forma de los otolitos sagitales izquierdo y derecho se estudiaron para la especie sargo picudo, Diplodus puntazzo del mar Egeo. Se analizaron en 52 D. puntazzo la forma del surco acustico, las superficies proximal y distal y las regiones posteriores de los otolitos sagitales izquierdo y derecho. Ademas, se registraron para cada par de otolitos sagitales las mediciones morfometricas de peso, longitud, ancho y perimetro. Se calcularon en ambos otolitos sagitales los indices de forma, factor de forma, relacion de aspecto, circularidad, ortogonalidad y elipticidad. En el D. puntazzo que habita en el mar Egeo, el ancho y elipticidad de los otolitos fueron significativamente diferentes (P <0,05), para las mediciones de otolitos sagitales izquierdo y derecho, respectivamente. Existen gran variabilidad en las caracteristicas morfologicas de los otolitos de diferentes especies y poblaciones de peces, asimismo es limitada la informacion de los indices morfologicos y la forma de los otolitos sagitales. El presente estudio proporciono informacion suficiente sobre la morfologia y biometria de los otolitos izquierdo y derecho del sargo picudo en el Mar Egeo, lo que puede proporcionar una herramienta util para la discriminacion e identificacion de especies marinas de agua dulce y para nuevas investigaciones.


Turkish Journal of Zoology | 2002

Relative Importance of Food Items in Feeding of Chondrostoma regium Heckel, 1843, and Its Relation with the Time of Annulus Formation

Aysun Gümüş; Mahmut Yilmaz; Nazmi Polat


Süleyman Demirel Üniversitesi Fen Edebiyat Fakültesi Fen Dergisi | 2010

Hirfanli Baraj Gölü'nde Yaşayan Cyprinus carpio L., 1758 ve Tinca tinca (L., 1758)'nin Boy-Ağirlik ve Boy-Boy İlişkileri ile Mevsimsel Kondisyon Faktörleri

Savaş Yilmaz; Okan Yazıcıoğlu; Mahmut Yilmaz; Nazmi Polat


Journal of Fisheriessciences.com | 2007

The evaluation of the similarity and difference on the ages of different bony structures of the Crucian carp (Carassius gibelio Bloch, 1782).

Derya Bostanci; Nazmi Polat; Mahmut Yilmaz


Turkish Journal of Veterinary & Animal Sciences | 2003

Aged-Based Food Preferences of Common Carp (Cyprinus carpio L., 1758) Inhabiting Fish Lakes in the Bafra District of Samsun Province (Lakes Tatlı and Gıcı)

Mahmut Yilmaz; Aysun Gümüş; Savaş Yilmaz; Nazmi Polat


Journal of Animal and Veterinary Advances | 2010

The dietary regime of the pike (Esox lucius L., 1758) in Lake Uluabat (Bursa, Turkey).

Mahmut Yilmaz; Muhammet Gaffaroglu; Nazmi Polat; Özgür Emiroğlu


Turkish Journal of Veterinary & Animal Sciences | 2003

Dietary Preferences of Perch (Perca fluviatilis L., 1758) Inhabiting Derbent Dam Lake (Bafra-Samsun) and Their Relationship with Seasonal and Age-Dependent Variations

Mahmut Yilmaz; Savaş Yilmaz; Şevket Kandemir; Derya Bostanci; Nazmi Polat


Turkish Journal of Veterinary & Animal Sciences | 2003

Digestive System Contents of the Perch (Perca fluviatilis L., 1758) Inhabiting Derbent Dam Lake (Bafra-Samsun)

Mahmut Yilmaz; Şevket Kandemir; Savaş Yilmaz; Nazmi Polat

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Nazmi Polat

Ondokuz Mayıs University

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Savaş Yilmaz

Gaziosmanpaşa University

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Aysun Gümüş

Ondokuz Mayıs University

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