Respiration of mesopelagic fish: a comparison of respiratory electron transport system (ETS) measurements and allometrically calculated rates in the Southern Ocean and Benguela Current
Respiration of mesopelagic fish: a comparison of respiratory electron transport system (ETS) measurements and allometrically calculated rates in the Southern Ocean and Benguela Current
复制标题
中层鱼类的呼吸：南大洋和本格拉海流呼吸电子传输系统 (ETS) 测量值与异速计算速率的比较
DOI：
10.1093/icesjms/fsaa031
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发表时间：
2020
影响因子：
3.3
通讯作者：
Belcher A
中科院分区：
文献类型：
--
作者：
Belcher A
中层鱼类是海洋生态系统的一个重要组成部分，它们对海洋生物地球化学循环的贡献日益得到承认。然而，主要的不确定性仍然是在他们的微生物化有机物质的速度。我们目前的呼吸率估计中层鱼类从两个海洋对比区域：斯科舍海和本格拉电流。通过测量电子传递系统的酶活性来估计呼吸速率。呼吸与湿质量的回归分析突出了区域和种间差异。在斯科舍海和本格拉海流，所有中层鱼类的平均呼吸率分别为593.6和354.9 µl O2 individual − 1 h − 1。全球异速生长模型表现不佳，在寒冷的地区相比，我们的观察，低估呼吸通量在斯科舍海67- 88%。这可能反映了用于拟合此类模型的大多数数据来自温带和亚热带地区。我们建议在将全球衍生的异速生长模型应用于区域数据时要谨慎，特别是在经验数据有限的寒冷（<5°C）温度环境中。需要更多的中层鱼类呼吸率测量，特别是在极地地区，以提高准确性，我们可以评估其在海洋生物地球化学循环的重要性。
Mesopelagic fish are an important component of marine ecosystems, and their contribution to marine biogeochemical cycles is becoming increasingly recognized. However, major uncertainties remain in the rates at which they remineralize organic matter. We present respiration rate estimates of mesopelagic fish from two oceanographically contrasting regions: the Scotia Sea and the Benguela Current. Respiration rates were estimated by measuring the enzyme activities of the electron transport system. Regression analysis of respiration with wet mass highlights regional and inter-specific differences. The mean respiration rates of all mesopelagic fish sampled were 593.6 and 354.9 µl O2individual−1h−1in the Scotia Sea and Benguela Current, respectively. Global allometric models performed poorly in colder regions compared with our observations, underestimating respiratory flux in the Scotia Sea by 67–88%. This may reflect that most data used to fit such models are derived from temperate and subtropical regions. We recommend caution when applying globally derived allometric models to regional data, particularly in cold (<5°C) temperature environments where empirical data are limited. More mesopelagic fish respiration rate measurements are required, particularly in polar regions, to increase the accuracy with which we can assess their importance in marine biogeochemical cycles.
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DOI：
10.1016/j.dsr2.2011.08.002
发表时间：
2012-01-01
影响因子：
3
作者：
Fielding, Sophie;Watkins, Jonathan L.;Venables, Hugh J.
通讯作者：
Venables, Hugh J.
斯科舍海（南大洋）Protomyctophum（Myctophidae）的营养动力学。
影响因子：
2
作者：
R. Saunders;Martin A. Collins;Peter Ward;G. Stowasser;Rachael S. Shreeve;G. Tarling
通讯作者：
G. Tarling
影响因子：
2.1
作者：
HernandezLeon, S;Gomez, M
通讯作者：
Gomez, M
根据 ETS 活性和双底物酶动力学预测海洋细菌 Pseudomonas nautica 的耗氧量
影响因子：
2.1
作者：
T. Packard;E. Berdalet;D. Blasco;Sylvie O. Roy;L. St;B. Lagacé;K. Lee;J.
通讯作者：
J.
N.I.O.
影响因子：
1.2
作者：
A. Baker;M. Clarke;Michelle Harris
通讯作者：
Michelle Harris