Low water pH depressed growth and early development of giant freshwater prawn Macrobrachium rosenbergii larvae
文献类型： 外文期刊
作者： Liew, Hon Jung 1 ; Rahmah, Sharifah 1 ; Tang, Pei Wen 1 ; Waiho, Khor 1 ; Fazhan, Hana fiah 1 ; Rasdi, Nadiah Wan 2 ; Hamin, Siti Izzah Athirah 1 ; Mazelan, Suhairi 1 ; Muda, Sabri 1 ; Lim, Leong-Seng 6 ; Chen, Young-Mao 7 ; Chang, Yu Mei 9 ; Liang, Li Qun 9 ; Abd Ghaffar, Mazlan 1 ;
作者机构： 1.Univ Malaysia Terengganu, Inst Trop Aquaculture & Fisheries, Higher Inst Ctr Excellence HICOE, Kuala Nerus, Terengganu, Malaysia
2.Univ Malaysia Terengganu, Fac Fisheries & Food Sci, Kuala Nerus, Terengganu, Malaysia
3.Univ Malaysia Terengganu, Fac Sci & Marine Environm, Kuala Nerus, Terengganu, Malaysia
4.Univ Malaysia Terengganu, Inst Marine Biotechnol, Kuala Nerus, Terengganu, Malaysia
5.Univ Malaysia Terengganu, Inst Trop Biodivers & Sustainable Dev, Kuala Nerus, Terengganu, Malaysia
6.Univ Malaysia Sabah, Borneo Marine Res Inst, Kota Kinabalu, Sabah, Malaysia
7.Natl Taiwan Ocean Univ, Coll Life Sci, Bachelor Degree Program Marine Biotechnol, Keelung, Taiwan
8.Natl Taiwan Ocean Univ, Ctr Excellence Oceans, Keelung, Taiwan
9.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin, Peoples R China
10.Shantou Univ, STU UMT Joint Shell fish Res Lab, Shantou, Guangdong, Peoples R China
11.Univ Sains Malaysia, Ctr Chem Biol, Minden, Malaysia
关键词： Acidification; Aquaculture; Environment; Pollution; Shellfish; Shrimp
期刊名称：HELIYON （ 影响因子：3.776； 五年影响因子：3.752 ）
ISSN：
年卷期： 2022 年 8 卷 7 期
页码：
收录情况： SCI
摘要： Macrobrachium rosenbergii is one of the shellfish species with high aquaculture value due to its increasing market demand. However, the comparatively low production volume compared to demand coupled with the rapid decline of the natural environment, consequently, drives the potential depletion of the wild population. The decrease in water pH related to anthropogenic pollution is one of the most critical factors affecting the early life performances of M. rosenbergii. Therefore, this study was designed to examine the effect of low water pH on feeding, growth and development of M. rosenbergii early life stages. Experimental water pH was set as neutral (7.7 +/- 0.4); mild-acidic (6.4 +/- 0.5) and acidic (5.4 +/- 0.2) with triplication at a stocking density of 2 larvae/L for 30 days. As expected, M. rosenbergii larvae were highly sensitive to acidic pH with no larvae survived beyond 48 h of exposure. Feeding, survival and growth of larvae were adversely affected by mild-acidic pH exposure as compared to neutral pH. Larvae exposed to mild-acidic water pH experienced a prolonged larval period and only metamorphosed to the post-larval stage at day-30. Whilst under neutral water pH, larval that metamorphosed to post-larval was first observed on day-23. The negative impact of decreased pH, even in mild-acidic pH exposure, on the feeding, survival, growth and development of M. rosenbergii larvae highlights the urgency of periodic pH monitoring during M. rosenbergii larviculture.
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