2017
DOI: 10.1016/j.cbpa.2016.08.013
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Abstract: Thyroid hormones are involved in many developmental and physiological processes, including osmoregulation. The regulation of the thyroid system by environmental salinity in the euryhaline gilthead seabream (Sparus aurata) is still poorly characterized. To this end seabreams were exposed to four different environmental salinities (5, 15, 40 and 55ppt) for 14days, and plasma free thyroid hormones (fT3, fT4), outer ring deiodination and Na/K-ATPase activities in gills and kidney, as well as other osmoregulatory a… Show more

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Cited by 16 publications
(18 citation statements)
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“…This euryhaline response coincides with what was described in the sciaenid shi drum, Umbrina cirrosa [34], the European seabass, Dicentrarchus labrax [35] and the sub-Antarctic Eleginops maclovinus [36]. However, other euryhaline species cultured in Europe such as Sparus aurata, Dicologoglossa cuneata and Scophthalmus maximus manage to maintain constant plasma osmolality levels within a narrower range of salinities, from brackish water close to the iso-osmotic point of these species to seawater [23,37,38], while Solea senegalensis, Scophthalmus rhombus and Pagrus pagrus show increasing plasma osmolality as environmental salinity increased [39][40][41].…”
Section: Discussionsupporting
confidence: 84%
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“…This euryhaline response coincides with what was described in the sciaenid shi drum, Umbrina cirrosa [34], the European seabass, Dicentrarchus labrax [35] and the sub-Antarctic Eleginops maclovinus [36]. However, other euryhaline species cultured in Europe such as Sparus aurata, Dicologoglossa cuneata and Scophthalmus maximus manage to maintain constant plasma osmolality levels within a narrower range of salinities, from brackish water close to the iso-osmotic point of these species to seawater [23,37,38], while Solea senegalensis, Scophthalmus rhombus and Pagrus pagrus show increasing plasma osmolality as environmental salinity increased [39][40][41].…”
Section: Discussionsupporting
confidence: 84%
“…Our results evidenced higher branchial NKA activity at higher salinities, as was described for S. senegalensis and S. rhombus [40,41]. The other NKA activity profile in fish was described in S. aurata, Mugil liza and D. labrax, showing the lowest branchial NKA activity in salinities close to the iso-osmotic point of these species and increased activities in the extreme salinities [35,37,42]. However, it was described for the sciaenid U. cirrosa that juveniles maintained for 84 days within a range of environmental salinities from 4 to 40 ppt, did not show differences in their branchial NKA activity [34].…”
Section: Discussionsupporting
confidence: 82%
“…The branchial and renal Na + /K + -ATPase (NKA) enzyme, an important modulator of osmoregulatory processes that is responsible for major energy expenditures during osmoregulation [15,31,36,41], exhibited no changes between 12 and 39 ppt salinity. This result was similar to that previously described for other teleost species, such as Sparus aurata [41], and reflects that other osmoregulatory tissues such as the intestine have important roles in the maintenance of body fluids, as described before in Solea senegalensis and Galaxias maculatus [36,42]. Thus, ionocyte cells in osmoregulatory tissues may show differentiated ion-transport mechanisms rather than the NKA enzyme, highlighting the importance of further studies on this topic to fully elucidate the relative importance of osmoregulation on body growth.…”
Section: Discussionmentioning
confidence: 99%
“…Endocrine regulation of stress pathways involves several players (Wendelaar Bonga, 2011;Gorissen and Flik, 2016). In fact, our Research Group has assessed the role of different endocrine systems in the gilthead sea bream after different challenges (Arends et al, 1999(Arends et al, , 2000Martos-Sitcha et al, 2013, 2014aSkrzynska et al, 2017;Ruiz-Jarabo et al, 2017,…”
Section: Discussionmentioning
confidence: 99%