Effects of Water Temperature and Post-Feeding Period on Postprandial  Ammonia Excretion and Oxygen Consumption by Larval Pacific Cod  (Gadus macrocephalus) Fed Rotifers (Brachionus plicatilis)

Jinhwan Lee; Dae Won Park; In-Seok Park; Sung Hwoan Cho

Makale detayları

Effects of Water Temperature and Post-Feeding Period on Postprandial Ammonia Excretion and Oxygen Consumption by Larval Pacific Cod (Gadus macrocephalus) Fed Rotifers (Brachionus plicatilis)

Yazarlar:

Jinhwan Lee | Dae Won Park | In-Seok Park | Sung Hwoan Cho

Yayıncı:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi:

Turkish Journal of Fisheries and Aquatic Sciences 2012 Vol.12 Issue 2

Belge Tipi:

Makale

Yayın Tarihi:

3/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000838301

Sıklık:

Üç Aylık

pISSN:

1303-2712

Anahtar kelimeler:

Özet:

 

Postprandial ammonia excretion and oxygen consumption of 15-d post-hatch larval Pacific cod (Gadus macrocephalus),  rotifer-fed (Brachionus plicatilis) since their first feeding, were studied in stationary cultures at 10C, 13C, and 16C for 48  h. Postprandial ammonia excretion and oxygen consumption rates were determined after 2, 4, 6, 8, 10, 12, 18, 24, 36 and 48  hours. The 48-h post-feeding weight-specific ammonia excretion and oxygen consumption rates increased until 4 h postfeeding,  decreased to 18 h post-feeding, and remained relatively stable until 48 h post-feeding. The highest weight-specific  ammonia excretion and oxygen consumption rates were 215 ± 19.8 μg NH3-N g-1 h-1 and 1,778 ± 55.6 μg O2 g-1 h-1 2-4 h  post-feeding at 13C. The higher (P < 0.05) resting ammonia and oxygen consumption at 16C 12-h post-feeding indicate that  this temperature is not appropriate for inducing higher growth of rotifer-fed pacific cod larvae.   	 	 		 .

 

Postprandial ammonia excretion and oxygen consumption of 15-d post-hatch larval Pacific cod (Gadus macrocephalus),  rotifer-fed (Brachionus plicatilis) since their first feeding, were studied in stationary cultures at 10C, 13C, and 16C for 48  h. Postprandial ammonia excretion and oxygen consumption rates were determined after 2, 4, 6, 8, 10, 12, 18, 24, 36 and 48  hours. The 48-h post-feeding weight-specific ammonia excretion and oxygen consumption rates increased until 4 h postfeeding,  decreased to 18 h post-feeding, and remained relatively stable until 48 h post-feeding. The highest weight-specific  ammonia excretion and oxygen consumption rates were 215 ± 19.8 μg NH3-N g-1 h-1 and 1,778 ± 55.6 μg O2 g-1 h-1 2-4 h  post-feeding at 13C. The higher (P < 0.05) resting ammonia and oxygen consumption at 16C 12-h post-feeding indicate that  this temperature is not appropriate for inducing higher growth of rotifer-fed pacific cod larvae.   	 	 		 .

Makale detayları

Effects of Water Temperature and Post-Feeding Period on Postprandial Ammonia Excretion and Oxygen Consumption by Larval Pacific Cod (Gadus macrocephalus) Fed Rotifers (Brachionus plicatilis)

Yazarlar:

Jinhwan Lee | Dae Won Park | In-Seok Park | Sung Hwoan Cho

Yayıncı:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi:

Turkish Journal of Fisheries and Aquatic Sciences 2012 Vol.12 Issue 2

Belge Tipi:

Makale

Yayın Tarihi:

3/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000838301

Sıklık:

Üç Aylık

pISSN:

1303-2712

Pacific cod

larvae

ammonia-nitrogen excretion

and oxygen consumption

Sayı

Makale detayları

Effects of Water Temperature and Post-Feeding Period on Postprandial Ammonia Excretion and Oxygen Consumption by Larval Pacific Cod (Gadus macrocephalus) Fed Rotifers (Brachionus plicatilis)

Yazarlar: Jinhwan Lee | Dae Won Park | In-Seok Park | Sung Hwoan Cho

Yayıncı: Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi: Turkish Journal of Fisheries and Aquatic Sciences 2012 Vol.12 Issue 2

Belge Tipi: Makale

Yayın Tarihi: 3/2012

Belge Dili: Türkçe

Document ID (Org No.): 2000838301

Sıklık: Üç Aylık

pISSN: 1303-2712

Pacific cod

larvae

ammonia-nitrogen excretion

and oxygen consumption

Sayı

Yazarlar:

Jinhwan Lee | Dae Won Park | In-Seok Park | Sung Hwoan Cho

Yayıncı:

Trabzon Su Ürünleri Merkez Araştırma Enstitüsü

Dergi:

Turkish Journal of Fisheries and Aquatic Sciences 2012 Vol.12 Issue 2

Belge Tipi:

Makale

Yayın Tarihi:

3/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000838301

Sıklık:

Üç Aylık

pISSN:

1303-2712