Farklı göz açıklıklarında monofilament ve multifilament galsama ağlarının lüfer balığı (Pomatomus saltatrix L., 1766) için seçiciliğinin hesaplanması

Bu çalışma, monofilament ve multifilament materyalden yapılmış 40 ve 44 mm ağ göz genişliğine sahip galsama ağlarının lüfer balığı (Pomatomus saltatrix L., 1766) için seçiciliğini belirlemek amacıyla Ekim 2001 ve Şubat 2002 tarihleri arasında Sinop iç liman bölgesinde yürütülmüştür. Ağların seçiciliğinde dolaylı hesaplama yöntemi olan Holt (1963) metodu kullanılmıştır. Balıkların %76.65’i monofilament ağlarla, %23.35’i multifilament ağlarla yakalanmıştır. Araştırma sonuçlarına göre, monofilament ve multifilament ağların ortak seçicilik faktörleri sırasıyla 4.58 ve 4.74 olarak bulunmuştur.
Anahtar Kelimeler:

seçicilik, Pomatomus

Determination of selectivity monoflament and multiflament gillnets with different mesh size for bluefish (Pomatomus saltatrix L., 1766).

In this study has been applied to determine the selectivity of mono and multifilament gillnets with 40 and 44 mm mesh size for blue fish (Pomatomus saltatrix L., 1766). This study was carry out from October 2001 till February 2002 in the inner harbour of Sinop. Holt (1963) method, which is the indirect calculation method, was used to determine the selectivity of gillnets. Proportion of caught fish by monofilament and multifilament gillnets were 76.65% and 23.35%, respectively. Acording the results, the common selection factor was found as 4.58 for monofilament and 4.74 for multifilament gillnets.
Keywords:

selectivity, Pomatomus,

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