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Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea

Yıl 2007, Cilt: 7 Sayı: 2, - , 01.04.2007

Öz

Black sea turbot (Psetta maxima) were reared at four different densities in the sea cages to evaluate the effects of stocking density on growth, survival rate and food conversion ratio. Fish (mean weight, 41 g; N: 900) were stocked in four different densities as 30, 60, 90 and 120 fish m-2 with three replicates and initial stock densities of 1.26±0.069, 2.44±0.022, 3.69±0.016 and 4.87±0.081 kg m-2 respectively. The growth trial lasted for 206 days from October 2000 to June 2001. Bulk and individual weights of fish in each cage were recorded monthly. The final mean weights (±s.e.) of the fish stocked at densities of 30, 60, 90 and 120 fish m-2 reached 178.3±6.53, 182.7±6.02, 186.1±8.22 and 164.6±8.12 g. Growth rate was fast up to 90 fish m-2and dropped after these. The corresponding SGR values were 0.70, 0.72, 0.73 and 0.68 % day-1 at temperatures ranging between 8 and 22°C and salinity of 17-18 ppm. The feed conversion ratios were estimated as 1.95, 1.85, 2.09 and 1.88, and cumulative survival rates were calculated as 78.0, 90.0, 75.0 and 65.3% respectively. The results revealed that stocking density had a significant effect on growth and survival rates of turbot. Fish held at the highest density exhibited lowest growth rate and survival rates.

Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea

Yıl 2007, Cilt: 7 Sayı: 2, - , 01.04.2007

Öz

Black sea turbot (Psetta maxima) were reared at four different densities in the sea cages to evaluate the effects of stocking density on growth, survival rate and food conversion ratio. Fish (mean weight, 41 g; N: 900) were stocked in four different densities as 30, 60, 90 and 120 fish m-2 with three replicates and initial stock densities of 1.26±0.069, 2.44±0.022, 3.69±0.016 and 4.87±0.081 kg m-2 respectively. The growth trial lasted for 206 days from October 2000 to June 2001. Bulk and individual weights of fish in each cage were recorded monthly. The final mean weights (±s.e.) of the fish stocked at densities of 30, 60, 90 and 120 fish m-2 reached 178.3±6.53, 182.7±6.02, 186.1±8.22 and 164.6±8.12 g. Growth rate was fast up to 90 fish m-2and dropped after these. The corresponding SGR values were 0.70, 0.72, 0.73 and 0.68 % day-1 at temperatures ranging between 8 and 22°C and salinity of 17-18 ppm. The feed conversion ratios were estimated as 1.95, 1.85, 2.09 and 1.88, and cumulative survival rates were calculated as 78.0, 90.0, 75.0 and 65.3% respectively. The results revealed that stocking density had a significant effect on growth and survival rates of turbot. Fish held at the highest density exhibited lowest growth rate and survival rates.

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Ayrıntılar

Birincil Dil Türkçe
Bölüm Makaleler
Yazarlar

Nilgün Aksungur Bu kişi benim

Muharrem Aksungur Bu kişi benim

Bilal Akbulut Bu kişi benim

İlyas Kutlu Bu kişi benim

Yayımlanma Tarihi 1 Nisan 2007
Yayımlandığı Sayı Yıl 2007 Cilt: 7 Sayı: 2

Kaynak Göster

APA Aksungur, N., Aksungur, M., Akbulut, B., Kutlu, İ. (2007). Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea. Turkish Journal of Fisheries and Aquatic Sciences, 7(2).
AMA Aksungur N, Aksungur M, Akbulut B, Kutlu İ. Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea. Turkish Journal of Fisheries and Aquatic Sciences. Nisan 2007;7(2).
Chicago Aksungur, Nilgün, Muharrem Aksungur, Bilal Akbulut, ve İlyas Kutlu. “Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta Maxima) in the Net Cages on the Southeastern Coast of the Black Sea”. Turkish Journal of Fisheries and Aquatic Sciences 7, sy. 2 (Nisan 2007).
EndNote Aksungur N, Aksungur M, Akbulut B, Kutlu İ (01 Nisan 2007) Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea. Turkish Journal of Fisheries and Aquatic Sciences 7 2
IEEE N. Aksungur, M. Aksungur, B. Akbulut, ve İ. Kutlu, “Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea”, Turkish Journal of Fisheries and Aquatic Sciences, c. 7, sy. 2, 2007.
ISNAD Aksungur, Nilgün vd. “Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta Maxima) in the Net Cages on the Southeastern Coast of the Black Sea”. Turkish Journal of Fisheries and Aquatic Sciences 7/2 (Nisan 2007).
JAMA Aksungur N, Aksungur M, Akbulut B, Kutlu İ. Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea. Turkish Journal of Fisheries and Aquatic Sciences. 2007;7.
MLA Aksungur, Nilgün vd. “Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta Maxima) in the Net Cages on the Southeastern Coast of the Black Sea”. Turkish Journal of Fisheries and Aquatic Sciences, c. 7, sy. 2, 2007.
Vancouver Aksungur N, Aksungur M, Akbulut B, Kutlu İ. Effects of Stocking Density on Growth Performance, Survival and Food Conversion Ratio of Turbot (Psetta maxima) in the Net Cages on the Southeastern Coast of the Black Sea. Turkish Journal of Fisheries and Aquatic Sciences. 2007;7(2).