Multifilament Gillnet Selectivity for the Red Mullet (Mullus barbatus) in the Eastern Black Sea Coast of Turkey, Trabzon

A. Cemal Dinçer; Mustafa Bahar

Makale detayları

Multifilament Gillnet Selectivity for the Red Mullet (Mullus barbatus) in the Eastern Black Sea Coast of Turkey, Trabzon

Yazarlar:

A. Cemal Dinçer | Mustafa Bahar

Yayıncı:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi:

Turkish Journal of Fisheries and Aquatic Sciences 2008 Vol.8 Issue 2

Belge Tipi:

Makale

Yayın Tarihi:

3/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000838557

Sıklık:

Üç Aylık

pISSN:

1303-2712

Anahtar kelimeler:

Özet:

 

The mesh selectivity of multifilament gillnets for red mullet (Mullus barbatus) was investigated using four different stretched mesh sizes (32, 36, 40 and 44 mm). Experimental fishing operations were carried out in Trabzon (Turkey) coasts of the Black Sea in springtime between 2002 and 2003. Selectivity on M. barbatus was assessed using the SELECT method, implemented in the PASGEAR software. Five different functional models; normal location, normal scale, gamma, log-normal and bi-model were used to fit the selectivity curve to the catch data. It was shown that the bi-model function was the best to fit the data. For the selectivity curves on the bi-model, the optimum lengths (100% retention probability for the 32, 36, 40 and 44 mm mesh sizes) were obtained as 14.24 cm, 16.02 cm, 17.8 cm, and 19.58 cm respectively. Considering the minimum allowable landing size (13 cm) 36 mm was found the most adequate mesh for exploiting the red mullet as it evidenced more conservative approach towards fishing management. 	 	 		 .

 

The mesh selectivity of multifilament gillnets for red mullet (Mullus barbatus) was investigated using four different stretched mesh sizes (32, 36, 40 and 44 mm). Experimental fishing operations were carried out in Trabzon (Turkey) coasts of the Black Sea in springtime between 2002 and 2003. Selectivity on M. barbatus was assessed using the SELECT method, implemented in the PASGEAR software. Five different functional models; normal location, normal scale, gamma, log-normal and bi-model were used to fit the selectivity curve to the catch data. It was shown that the bi-model function was the best to fit the data. For the selectivity curves on the bi-model, the optimum lengths (100% retention probability for the 32, 36, 40 and 44 mm mesh sizes) were obtained as 14.24 cm, 16.02 cm, 17.8 cm, and 19.58 cm respectively. Considering the minimum allowable landing size (13 cm) 36 mm was found the most adequate mesh for exploiting the red mullet as it evidenced more conservative approach towards fishing management. 	 	 		 .

Makale detayları

Multifilament Gillnet Selectivity for the Red Mullet (Mullus barbatus) in the Eastern Black Sea Coast of Turkey, Trabzon

Yazarlar:

A. Cemal Dinçer | Mustafa Bahar

Yayıncı:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi:

Turkish Journal of Fisheries and Aquatic Sciences 2008 Vol.8 Issue 2

Belge Tipi:

Makale

Yayın Tarihi:

3/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000838557

Sıklık:

Üç Aylık

pISSN:

1303-2712

Red mullet

gillnet

mesh selectivity

SELECT method

Black Sea

Sayı

Makale detayları

Multifilament Gillnet Selectivity for the Red Mullet (Mullus barbatus) in the Eastern Black Sea Coast of Turkey, Trabzon

Yazarlar: A. Cemal Dinçer | Mustafa Bahar

Yayıncı: Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi: Turkish Journal of Fisheries and Aquatic Sciences 2008 Vol.8 Issue 2

Belge Tipi: Makale

Yayın Tarihi: 3/2008

Belge Dili: Türkçe

Document ID (Org No.): 2000838557

Sıklık: Üç Aylık

pISSN: 1303-2712

Red mullet

gillnet

mesh selectivity

SELECT method

Black Sea

Sayı

Yazarlar:

A. Cemal Dinçer | Mustafa Bahar

Yayıncı:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi:

Turkish Journal of Fisheries and Aquatic Sciences 2008 Vol.8 Issue 2

Belge Tipi:

Makale

Yayın Tarihi:

3/2008

Belge Dili:

Türkçe

Document ID (Org No.):

2000838557

Sıklık:

Üç Aylık

pISSN:

1303-2712