caa a22 4500 477117198 CHVBK 20180405111625.0 cr unu---uuuuu 170330e19960801xx s 000 0 eng 10.1007/BF02112355 doi (NATIONALLICENCE)springer-10.1007/BF02112355 Uptake, distribution and excretion of magnesium in Oreochromis mossambicus [Elektronische Daten] dependence on magnesium in diet and water [Marcel Bijvelds, Gert Flik, Zvonimir Kolar, Sjoerd Wendelaar Bonga] The euryhaline Mozambique tilapia (Oreochromis mossambicus) shows a more marked ability to adapt to low magnesium levels in food and water than many other fish species. Nonetheless, the internal distribution of magnesium is altered under low-magnesium conditions. The amount of magnesium in scales, and to a lesser extent the vertebral bone, is reduced and hence serve as magnesium reservoirs. The magnesium concentration of muscle is only marginally reduced by low external magnesium, suggesting that magnesium is partitioned to ensure normal muscle functioning. The water magnesium is of vital importance, as exposure to low-magnesium water markedly deminished the ability of tilapia to adapt to low-magnesium feeding. However, magnesium intake from the water, eithervia the integument or drinking, does not increase in lowmagnesium fed fish, despite an increased opercular chloride cell density. The growth related magnesium accumulation of tilapia under low-magnesium conditions approximates the total intake of the element (from the food and from the water), indicating that magnesium losses are minimized and that the magnesium absorption from the gastrointestinal tract may be highly efficient and very important. Kugler Publication bv Amsterdam, 1996 magnesium nationallicence tilapia nationallicence bone nationallicence scales nationallicence muscle nationallicence 28Mg fluxes nationallicence drinking rate nationallicence Bijvelds Marcel Department of Animal Physiology, Faculty of Science, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands aut Flik Gert Department of Animal Physiology, Faculty of Science, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands aut Kolar Zvonimir Department of Radiochemistry, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, The Netherlands aut Wendelaar Bonga Sjoerd Department of Animal Physiology, Faculty of Science, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands aut Fish Physiology and Biochemistry Kluwer Academic Publishers 15/4(1996-08-01), 287-298 0920-1742 15:4<287 1996 15 10695 https://doi.org/10.1007/BF02112355 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02112355 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bijvelds Marcel Department of Animal Physiology, Faculty of Science, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands aut NATIONALLICENCE 700 1- Flik Gert Department of Animal Physiology, Faculty of Science, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands aut NATIONALLICENCE 700 1- Kolar Zvonimir Department of Radiochemistry, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, The Netherlands aut NATIONALLICENCE 700 1- Wendelaar Bonga Sjoerd Department of Animal Physiology, Faculty of Science, University of Nijmegen, Toernooiveld, 6525 ED, Nijmegen, The Netherlands aut NATIONALLICENCE 773 0- Fish Physiology and Biochemistry Kluwer Academic Publishers 15/4(1996-08-01), 287-298 0920-1742 15:4<287 1996 15 10695 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer