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| Authors | Garrote-Moreno, A; Cambridge, M; Sanchez-Lizaso, JL |
| Author Full Name | Garrote-Moreno, Aurora; Cambridge, Marion; Luis Sanchez-Lizaso, Jose |
| Title | Ion concentrations in seagrass: A comparison of results from field and controlled-environment studies |
| Source | ESTUARINE COASTAL AND SHELF SCIENCE |
| Language | English |
| Document Type | Article |
| Author Keywords | Ions concentrations; Posidonia australis; Posidonia sinuosa; Amphibolis antarctica; Amphibolis griffithii |
| Keywords Plus | ANTARCTICA LABILL SONDER; POSIDONIA-OCEANICA; HYPERSALINE STRESS; CYMODOCEA-NODOSA; AMPHIBOLIS-ANTARCTICA; WESTERN-AUSTRALIA; WATER RELATIONS; ZOSTERA-MARINA; SHARK BAY; TEMPERATURE RESPONSES |
| Abstract | Osmoregulation is essential for the survival of seagrasses in marine and hypersaline environments. The aim of this study was to examine ion concentrations of four seagrass species (Posidonia australis, P. sinuosa, Amphibolis antarctica and A. griffithii) after exposure to salinity changes. Plant fragments were placed in a series of aquaria at marine salinity (35) and, after one week of acclimation, exposed for 7 days to salinities between 20 and 70. Cl-, Na+ and total ion concentration increased with salinity in leaf tissue of the four seagrasses species. These results were compared with those of P. australis and A. antarctica samples collected at three locations at Shark Bay, Western Australia where higher salinities occurred, ranging from 46 to 51. Concentrations of K+ and Ca+2 were higher in seagrass tissues from Shark Bay than in those in aquarium trials. CI-, Na+ and total ions in P. australis and A. antarctica from Shark Bay were lowest at the highest salinity location. The K+/Na+ ratio in the aquarium trials (under ambient conditions) was in the following order: A. antarctica = A. griffithii > P. australis > P. sinuosa and Ca+2/Na+ ratio was: A. antarctica = A. griffithii > P. sinuosa > P. australis. This species order indicates a physiological capacity to tolerate variation in salinity. Furthermore, these ratios were higher in the locality with highest salinity in Shark Bay, indicating acclimation and adaptation of ion concentrations to the salinity regime in the environment. (C) 2016 Elsevier Ltd. All rights reserved. |
| Author Address | [Garrote-Moreno, Aurora; Luis Sanchez-Lizaso, Jose] Univ Alicante, Dept Ciencias Mar & Biol Aplicada, Apdo 99, E-03080 Alicante, Spain; [Garrote-Moreno, Aurora; Cambridge, Marion] Univ Western Australia, UWA Oceans Inst, 35 Stirling Highway, Crawley, WA 6009, Australia; [Garrote-Moreno, Aurora; Cambridge, Marion] Univ Western Australia, Sch Plant Biol M470, 35 Stirling Highway, Crawley, WA 6009, Australia |
| Reprint Address | Garrote-Moreno, A (corresponding author), Univ Alicante, Dept Ciencias Mar & Biol Aplicada, Apdo 99, E-03080 Alicante, Spain. |
| E-mail Address | aurora.garrote@ua.es |
| ResearcherID Number | Cambridge, Marion L/G-4982-2011; Lizaso, Jose Luis L Sanchez/J-4939-2017; Cambridge, Marion/S-1977-2019 |
| ORCID Number | Cambridge, Marion L/0000-0003-2781-4429; Lizaso, Jose Luis L Sanchez/0000-0002-3927-5699; |
| Funding Agency and Grant Number | Universidad de Alicante |
| Funding Text | We thank Maryann Evetts for her support and assistance during this project, Renae Hovey, Andrea Zavala Perez at UWA for field and technical assistance during collection and experiments. A.G. was supported by an FPI grant from Universidad de Alicante. |
| Times Cited | 4 |
| Total Times Cited Count (WoS, BCI, and CSCD) | 4 |
| Publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| Publisher City | LONDON |
| Publisher Address | 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND |
| ISSN | 0272-7714 |
| 29-Character Source Abbreviation | ESTUAR COAST SHELF S |
| ISO Source Abbreviation | Estuar. Coast. Shelf Sci. |
| Publication Date | NOV 5 |
| Year Published | 2016 |
| Volume | 181 |
| Beginning Page | 209 |
| Ending Page | 217 |
| Digital Object Identifier (DOI) | 10.1016/j.ecss.2016.08.034 |
| Page Count | 9 |
| Web of Science Category | Marine & Freshwater Biology; Oceanography |
| Subject Category | Marine & Freshwater Biology; Oceanography |
| Document Delivery Number | EA2EV |
| Unique Article Identifier | WOS:000386406500020 |
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