Estimation of lifelong metabolic rates in marine fish: A combination of oxygen consumption measurements and δ13C metabolic proxy derived from vertebral structural carbonates

IF 5.1 2区地球科学 Q1 LIMNOLOGY

Limnology and Oceanography Letters Pub Date : 2025-03-25 DOI:10.1002/lol2.70009

Chi‐Yuan Hsieh, Tzu‐Yen Liu, Yung‐Che Tseng, Kotaro Shirai, Pei‐Ling Wang, Guan‐Chung Wu, Ming‐Tsung Chung

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引用次数: 0

Abstract

Adjustments in the metabolism of marine fish are associated with the complexity of resource availability, prey–predator relationships, and biotic and abiotic interactions in the natural environment. To investigate the relationship between metabolism and body mass, this study used a conventional method to estimate the oxygen consumption rate (reflecting the resting metabolic rate) in black porgy, Acanthopagrus schlegelii, over a year of rearing. In addition, we developed a novel metabolic proxy using the δ13C values of vertebral structural carbonates to monitor lifelong metabolic changes. The oxygen consumption measurements followed a decreasing mass‐dependent trend and yielded a mass‐specific allometric exponent scaling (−0.24). By integrating the oxygen consumption with the advanced δ13C metabolic proxy, we established a decay model in an increasing form to describe the relationship of the two measurements, and it could be further used in wild fishes and broaden the metabolic studies in marine vertebrates.

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海洋鱼类终身代谢率的估计：氧消耗测量和从椎体结构碳酸盐中获得的δ13C代谢代理的组合

海洋鱼类代谢的调整与自然环境中资源可用性、捕食关系以及生物和非生物相互作用的复杂性有关。为了研究代谢与体重之间的关系，本研究采用常规方法估算了饲养1年多的黑棘猴（Acanthopagrus schlegelii）的耗氧量（反映静止代谢率）。此外，我们开发了一种新的代谢代理，使用椎体结构碳酸盐的δ13C值来监测终身代谢变化。氧消耗测量值遵循质量依赖性下降的趋势，并产生质量特异性异速生长指数标度（- 0.24）。通过将耗氧量与δ13C代谢物结合，建立了一种递增式的衰减模型来描述二者之间的关系，该模型可进一步应用于野生鱼类，拓宽海洋脊椎动物的代谢研究。

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来源期刊

Limnology and Oceanography Letters Multiple-

CiteScore

10.00

自引率

3.80%

发文量

审稿时长

25 weeks

期刊介绍： Limnology and Oceanography Letters (LO-Letters) serves as a platform for communicating the latest innovative and trend-setting research in the aquatic sciences. Manuscripts submitted to LO-Letters are expected to present high-impact, cutting-edge results, discoveries, or conceptual developments across all areas of limnology and oceanography, including their integration. Selection criteria for manuscripts include their broad relevance to the field, strong empirical and conceptual foundations, succinct and elegant conclusions, and potential to advance knowledge in aquatic sciences.