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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/25266

Title: Bioenergetics of juvenile whitespotted bamboo shark, Chiloscyllium plagiosum
Authors: Chen W. K.;K. M. Liu;Y. Y. Liao.
Contributors: NTOU:Institute of Marine Affairs and Resource Managemen
國立臺灣海洋大學:海洋事務與資源管理研究所
Keywords: bioenergetic budget;Chiloscyllium plagiosum;energy content;metabolic rate;specific dynamic action
Date: 2005-05
Issue Date: 2011-10-20T08:21:57Z
Publisher: The 7th Indo-Pacific Fish Conference,Taipei, Taiwan.
Abstract: This study establishes the bioenergetics budget of juvenile whitespotted bamboo shark Chiloscyllium plagiosum by estimating the standard metabolic rate (RS), measuring the effect of body size and temperature on the RS, and identifying the specific dynamic action (RSDA) magnitude and duration of that action in juvenile whitespotted bamboo sharks. The mean ±s.d. (RS) of six fish (500–620 g) measured in a circular closed respirometry system was 30·21 ± 5·68 mg O2 kg−1 h−1 at 18° C and 70·38 ± 14·81 mg O2 kg−1 h−1 at 28° C, respectively. There were no significant differences in RS between day and night at either 18 or 28° C (t-test, P > 0·05). The mean ±s.d. Q10 for 18–28° C was 2·32 ± 0·06 (n = 6). The amount of oxygen consumed per hour inline image changed predictably with body mass (M; 295–750 g) following the relationship: inline image (n = 40, r2= 0·92, P < 0·05). The mean magnitude of RSDA was 95·28 ± 17·55 mg O2 kg−1 h−1. The amount of gross ingested energy (EI) expended as RSDA ranged from 6·32 to 12·78% with a mean ±s.d. of 8·01 ± 0·03%. The duration of the RSDA effect was 122 h. The energy content of juvenile whitespotted bamboo shark, squid and faeces determined by bomb calorimeter were 19·51, 20·3 and 18·62 kJ g dry mass−1. A mean bioenergetic budget for juvenile whitespotted bamboo sharks fed with squid at 18° C was 100C = 29·5G + 31·9RS+ 28·2RSDA+ 6·7F + 2·1E + 1·6U, where C = consumption, G = growth, F = egestion, E = excretion and U = unaccounted energy.
Relation: 72(6), pp.1245–1258
URI: http://ntour.ntou.edu.tw/handle/987654321/25266
Appears in Collections:[海洋事務與資源管理研究所] 演講及研討會

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