Hoven’s carp Leptobarbus hoevenii strategized metabolism needs to cope with changing environment

Suhaini Mohamad and Sharifah Rahmah and Rabiatul Adawiyyah Zainuddin and Yusnita A Thallib and Ros Suhaida Razali and Mohamad Jalilah and Mazlan Abd Ghaffar and Leong-Seng Lim and Yu Mei Chang and Li Qun Liang and Simon Kumar Das and Young-Mao Chen and Hon Jung Liew (2024) Hoven’s carp Leptobarbus hoevenii strategized metabolism needs to cope with changing environment. Heliyon, 10. pp. 1-14. ISSN 2405-8440

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Abstract

Current water warming and freshwater acidification undoubtedly affect the life of aquatic animals especially ammonotelic teleost by altering their physiological responses. The effect of temperature (28 ◦C vs 32 ◦C) and pH (7 vs. 5) on the metabolic compromising strategies of Hoven’s carp (Leptobarbus hoevenii) was investigated in this study. Fishes were conditioned to (i) 28 ◦C + pH 7 (N28◦C); (ii) 32 ◦C + pH 7 (N32◦C); (iii) 28 ◦C + pH 5 (L28◦C) and (iv) 32 ◦C + pH 5 (L32◦C) for 20 days followed by osmorespiration assay. Results showed that feeding performance of Hoven’s carp was significantly depressed when exposed to low pH conditions (L28◦C and L32◦C). However, by exposed Hoven’s carp to L32◦C induced high metabolic oxygen intake and ammonia excretion to about 2x-folds higher compared to the control group. As for energy mobilization, Hoven’s carp mobilized liver and muscle protein under L28◦C condition. Whereas under high temperature in both pH, Hoven’s carp had the tendency to reserve energy in both of liver and muscle. The findings of this study revealed that Hoven’s carp is sensitive to lower water pH and high temperature, thereby they remodeled their physiological needs to cope with the environmental changes condition.

Item Type: Article
Keyword: Climate change Osmorespiration Physiology Energy Teleost
Subjects: Q Science > QL Zoology > QL1-991 Zoology > QL605-739.8 Chordates. Vertebrates > QL614-639.8 Fishes
Q Science > QL Zoology > QL1-991 Zoology > QL605-739.8 Chordates. Vertebrates > QL700-739.8 Mammals
Department: INSTITUTE > Borneo Marine Research Institute
Depositing User: ABDULLAH BIN SABUDIN -
Date Deposited: 18 Feb 2025 09:49
Last Modified: 18 Feb 2025 09:49
URI: https://eprints.ums.edu.my/id/eprint/42895

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