RT journal article T1 The euryhaline crab Uca tangeri showed metabolic differences to sex and environmental salinity A1 Pinoni, Silvia A. A1 Jerez Cepa, Ismael A1 López Mañanes, Alejandra A1 Mancera Romero, Juan Miguel A2 Biología K1 euryhaline crab K1 Uca tangeri K1 salinity K1 hepatopancreas K1 gills K1 haemolymph AB This study constitutes a first attempt to investigate sex differences in osmoregulatory capacity and metabolic responses in relation to hyper- and hypo-osmoregulation in the intertidal euryhaline crab Uca tangeri. Adult male and female specimens from Cadiz Bay, Spain (36°23′–37′N 6°8′–15′W), were acclimated to three different environmental salinities (12, 33 and 55 psu) during 7 days, and several parameters were assessed in haemolymph (osmolality, glucose, amino acids, triglycerides and lactate) as well as in metabolic key organs (hepatopancreas, anterior and posterior gills: glycogen, free glucose, amino acids and triglycerides). Specimens from both sex exhibited high and similar hyper- and hypo-osmoregulatory capacities. However, metabolite levels were differentially affected upon acclimation to low and high salinity in several metabolic organs and haemolymph of male and females: (i) glycogen in gills, (ii) free glucose in gills and hepatopancreas, (iii) amino acids in hepatopancreas, (iv) triglycerides in haemolymph, hepatopancreas and posterior gills, and (v) lactate in haemolymph. The results suggest the occurrence of differential metabolic adjustments upon hyper- and hypo-osmoregulation related to sex in the intertidal euryhaline crab U. tangeri. PB Cambridge University Press SN 1469-7769 YR 2018 FD 2018-09 LK http://hdl.handle.net/10498/34900 UL http://hdl.handle.net/10498/34900 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026