Thermal tolerance and oxygen consumption rates of the catfish Horabagrus brachysoma (Gunther) acclimated to different temperatures

被引：79

作者：

Dalvi, Rishikesh S. ^{[1
]}

Pal, Asim K. ^{[1
]}

Tiwari, Lalchand R. ^{[2
]}

Das, Tilak ^{[1
]}

Baruah, Kartik ^{[3
,4
]}

机构：

[1] Cent Inst Fisheries Educ, Div Fish Nutr & Biochem, Bombay 400061, Maharashtra, India

[2] Maharshi Dayanand Coll, Dept Zool, Bombay 400012, Maharashtra, India

[3] Univ Ghent, Lab Aquaculture, B-9000 Ghent, Belgium

[4] Univ Ghent, Artemia Reference Ctr, B-9000 Ghent, Belgium

来源：

AQUACULTURE | 2009年 / 295卷 / 1-2期

关键词：

Horabagrus brachysoma; Thermal tolerance polygon; Oxygen consumption rates; Temperature quotient; Q(10); CLIMATE-CHANGE; FISHES; FINGERLINGS; PREFERENCE; PHYSIOLOGY; HAMILTON; MAXIMUM;

D O I：

10.1016/j.aquaculture.2009.06.034

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Thermal tolerance using critical thermal methodology and oxygen consumption rates of Horabagrus brachysoma (23.01 + 2.04 g) were determined after acclimating the fish to 15, 20, 26, 31, 33 and 36 degrees C temperature for 30 days. Critical thermal maxima, CTMax, (34.86 +/- 0.09, 38.05 +/- 0.06, 40.23 +/- 0.12, 41.79 +/- 0.09, 42.44 +/- 0.05, and 42.79 +/- 0.02) and critical thermal minima, CTMin, (13.17 +/- 0.09,13.56 +/- 0.05, 14.15 +/- 0.10, 15.37 +/- 0.10, 16.39 +/- 0.12, and 18.37 +/- 0.04) increased significantly (P<0.05) with increasing acclimation temperatures. A thermal tolerance polygon over the range of 15 to 36 degrees C had a calculated area of 526.6 degrees C-2. Oxygen consumption rate increased significantly (P<0.05) with increasing acclimation temperature between 15 to 31 degrees C and 33 to 36 degrees C. Maximum and minimum temperature quotients (Q(10)) were observed between 15-20 and 31-33 degrees C as 2.59 and 1.53, respectively. Final preferred temperature estimated from the Q10 value was between 31 and 33 degrees C. Results indicate that H. brachysoma has better capability for adapting to higher temperatures and suggest their culture potential in tropical regions. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：116 / 119

页数：4