کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1971901 | 1538992 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of temperature on postprandial metabolism of yellowfin tuna (Thunnus albacares)
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کلمات کلیدی
SDAThunnus albacaresSMRMO2RMRSpecific dynamic action - اقدام پویا خاصEnergetics - انرژیRespiration - تنفسTemperature - دماStandard metabolic rate - میزان متابولیسم استانداردOxygen consumption rate - میزان مصرف اکسیژنroutine metabolic rate - نرخ متابولیک معمولیDigestion - گوارش یا هضم یا تحلیلYellowfin tuna - گوجه فرنگی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Specific dynamic action (SDA), the increase in metabolic expenditure associated with consumption of a meal, represents a substantial portion of fish energy budgets and is highly influenced by ambient temperature. The effect of temperature on SDA has not been studied in yellowfin tuna (Thunnus albacares, Bonnaterre 1788), an active pelagic predator that occupies temperate and subtropical waters. The energetic cost and duration of SDA were calculated by comparing routine and post-prandial oxygen consumption rates. Mean routine metabolic rates in yellowfin tuna increased with temperature, from 136 mg O2 kgâ 1 hâ 1 at 20 °C to 211 mg O2 kgâ 1 h at 24 °C. The mean duration of SDA decreased from 40.2 h at 20 °C to 33.1 h at 24 °C, while mean SDA coefficient, the percentage of energy in a meal that is consumed during digestion, increased from 5.9% at 20 °C to 12.7% at 24 °C. Digestion in yellowfin tuna is faster at a higher temperature but requires additional oxidative energy. Enhanced characterization of the role of temperature in SDA of yellowfin tuna deepens our understanding of tuna physiology and can help improve management of aquaculture and fisheries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology - Volume 195, May 2016, Pages 32-38
Journal: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology - Volume 195, May 2016, Pages 32-38
نویسندگان
Dane H. Klinger, Jonathan J. Dale, Adrian C. Gleiss, Tyler Brandt, Ethan E. Estess, Luke Gardner, Benjamin Machado, Alex Norton, Luis Rodriguez, James Stiltner, Charles Farwell, Barbara A. Block,