Codend Selectivity of Demersal Trawl with Square Mesh Panel (SMP) for Blunt-snouted mullet (Mullus ponticus Essipov, 1927) in the Southern Black Sea Shores of Türkiye

Süleyman Özdemir; Yakup Erdem

Makale detayları

Codend Selectivity of Demersal Trawl with Square Mesh Panel (SMP) for Blunt-snouted mullet (Mullus ponticus Essipov, 1927) in the Southern Black Sea Shores of Türkiye

Yazarlar:

Süleyman Özdemir | Yakup Erdem

Yayıncı:

Ordu University

Ana Başlıklar:

Fisheries Management

Dergi:

Turkish Journal of Maritime and Marine Sciences Vol.10 Issue 4, pp.232-244

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001332023

pISSN:

2564-7016

Anahtar kelimeler:

Özet:

 The study was conducted on the Southern Black Sea shores of the Mediterranean Basin and selectivity parameters of the trawl codend 36 mm, 40 mm diamond and 40 mm square mesh panel, were estimated in blunt-snouted mullet Mullus ponticus, Essipov, 1927 fishing. End of the 12 valid hauls, selectivity parameters for 36 mm diamond D, 40 mm diamond D and 40 mm Square Mesh Panel SMP were estimated selection length of 50  L50 11.56 cm, 12.53 cm and 13.56 cm; selection range SR 4.88 cm, 5.02 cm and 3.91; selection factor SF 0.29, 0.31 and 0.34 respectively. 50  selectivity length of 36 mm codend was smaller than the legal Minimum Landing Size MLS13 cm, 40 mm codend was more nearly MLS but its not enough and 40 mm Square Mesh Panel SMP on the codend has to use in the bottom trawl fisheries. Catch of small size juvenile blunt-snouted mullet will decrease by square mesh panel method must consider in the demersal trawl fishery of Black Sea.

 The study was conducted on the Southern Black Sea shores of the Mediterranean Basin and selectivity parameters of the trawl codend 36 mm, 40 mm diamond and 40 mm square mesh panel, were estimated in blunt-snouted mullet Mullus ponticus, Essipov, 1927 fishing. End of the 12 valid hauls, selectivity parameters for 36 mm diamond D, 40 mm diamond D and 40 mm Square Mesh Panel SMP were estimated selection length of 50  L50 11.56 cm, 12.53 cm and 13.56 cm; selection range SR 4.88 cm, 5.02 cm and 3.91; selection factor SF 0.29, 0.31 and 0.34 respectively. 50  selectivity length of 36 mm codend was smaller than the legal Minimum Landing Size MLS13 cm, 40 mm codend was more nearly MLS but its not enough and 40 mm Square Mesh Panel SMP on the codend has to use in the bottom trawl fisheries. Catch of small size juvenile blunt-snouted mullet will decrease by square mesh panel method must consider in the demersal trawl fishery of Black Sea.

 The study was conducted on the Southern Black Sea shores of the Mediterranean Basin and selectivity parameters of the trawl codend 36 mm, 40 mm diamond and 40 mm square mesh panel, were estimated in blunt-snouted mullet Mullus ponticus, Essipov, 1927 fishing. End of the 12 valid hauls, selectivity parameters for 36 mm diamond D, 40 mm diamond D and 40 mm Square Mesh Panel SMP were estimated selection length of 50  L50 11.56 cm, 12.53 cm and 13.56 cm; selection range SR 4.88 cm, 5.02 cm and 3.91; selection factor SF 0.29, 0.31 and 0.34 respectively. 50  selectivity length of 36 mm codend was smaller than the legal Minimum Landing Size MLS13 cm, 40 mm codend was more nearly MLS but its not enough and 40 mm Square Mesh Panel SMP on the codend has to use in the bottom trawl fisheries. Catch of small size juvenile blunt-snouted mullet will decrease by square mesh panel method must consider in the demersal trawl fishery of Black Sea.

 Akdeniz Havzasının Güney Karadeniz kıyılarında yürütülen çalışmada, Karadeniz barbunya balığı Mullus ponticus, Essipov, 1927 avcılığında kullanılan dip trol ağı torbasının 36 mm, 40 mm baklava gözlü ve 40 mm kare gözlü panel seçicilik parametreleri tahmin edilmiştir. Araştırma süresince 12 geçerli ağ çekimi sonunda, 36 mm baklava gözlü D, 40 mm baklava gözlü D ve 40 mm kare gözlü ağ panel SMP için seçicilik parametreleri, sırasıyla 50 seçicilik boyu L50 11,56 cm, 12,53 cm ve 13,56 cm olarak tahmin edilmiştir. Seçicilik aralığı SR 4,88 cm, 5,02 cm ve 3,91; seçicilik faktörü SF sırasıyla 0,29, 0,31 ve 0,34 olarak hesaplanmıştır. 36 mm lik torbanın 50 seçicilik boyunun, balığın yasal Minimum Avlama Boyu MAB olan 13 cm daha küçük olduğu belirlenmiştir. 40 mm lik torbanın MAB na daha yakın olduğu ancak yeterli olmadığı ve Karadeniz dip trolü balıkçılığında torba üzerinde 40 mm lik kare gözlü ağ panel kullanılmasının MAB açısından gerekli olduğu saptanmıştır. Dip trol torbasında kare gözlü ağ panel kullanılması ile küçük boydaki genç barbunya balığının avının azalacağı dikkate alınmalıdır.

Makale detayları

Codend Selectivity of Demersal Trawl with Square Mesh Panel (SMP) for Blunt-snouted mullet (Mullus ponticus Essipov, 1927) in the Southern Black Sea Shores of Türkiye

Yazarlar:

Süleyman Özdemir | Yakup Erdem

Yayıncı:

Ordu University

Ana Başlıklar:

Fisheries Management

Dergi:

Turkish Journal of Maritime and Marine Sciences Vol.10 Issue 4, pp.232-244

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001332023

pISSN:

2564-7016

Trawl fishery

Selectivity

Square mesh panel

Blunt-snouted mullet

Black SeaTrol balıkçılığı

Seçicilik

Kare gözlü ağ panel

Barbunya

Karadeniz

Sayı

Makale detayları

Yazarlar: Süleyman Özdemir | Yakup Erdem

Yayıncı: Ordu University

Ana Başlıklar: Fisheries Management

Dergi: Turkish Journal of Maritime and Marine Sciences Vol.10 Issue 4, pp.232-244

Belge Tipi: Makale

Yayın Tarihi: 1/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001332023

pISSN: 2564-7016

Sayı

Yazarlar:

Süleyman Özdemir | Yakup Erdem

Yayıncı:

Ordu University

Ana Başlıklar:

Fisheries Management

Dergi:

Turkish Journal of Maritime and Marine Sciences Vol.10 Issue 4, pp.232-244

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001332023

pISSN:

2564-7016