PMID: 11916107Mar 28, 2002Paper

Modulation of calcium balance in tilapia larvae (Oreochromis mossambicus) acclimated to low-calcium environments

Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
M Y ChouP P Hwang

Abstract

This study examined how developing fish larvae regulate their Ca2+ balance for acclimation to low ambient Ca2+. Calcium balance in newly hatched larvae was examined individually. Developing larvae not only increased Ca2+ influx but also decreased Ca2+ efflux when they were acclimated to low-Ca2+ environments. After acclimation for 8 days, the influx and efflux of the low-Ca2+ (0.02 mM) group were about 106% and 43%, respectively, compared to those of the high-Ca2+ (1.0 mM) group. Sensitivity and response to low-Ca2+ environments are age-dependent. Upon acute exposure to low Ca2+. newly hatched (H0) larvae increased both Ca2+ influx (from 24% to 67% of high-Ca2+) and net uptake (from 5% to 69%) within 64 h, while 3-day-posthatching (H3) larvae managed to reach the levels of the control within 38 h. Declining Ca2+ efflux in H3 larvae occurred 14 h after exposure, much faster than those in H0 larvae (38 h). It is suggested that modulation of Ca2+-balance mechanisms in developing larvae is dependent upon the levels of Ca2+ in the larval body.

Citations

Feb 10, 2016·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Chia-Hao LinPung-Pung Hwang
Mar 20, 2014·Physiological and Biochemical Zoology : PBZ·Janet GenzW Gary Anderson
Jul 22, 2014·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Romina SacchiDietmar Kültz
May 3, 2005·General and Comparative Endocrinology·D M Power
Aug 25, 2016·General and Comparative Endocrinology·Ying-Jey Guh, Pung-Pung Hwang
Jan 24, 2003·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Yi-Yen ChenPung-Pung Hwang
Dec 17, 2008·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Deng-Yu TsengPung-Pung Hwang
Jun 15, 2011·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·Jo VanoevelenStefan Schulte-Merker
Jun 11, 2005·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Tien-Chien PanPung-Pung Hwang
Jan 7, 2021·Environmental Science and Pollution Research International·Quanquan Cao, Shaowu Yin

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