Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities
Adult male crayfish, Cherax quadricarinatus, were exposed to the salinities of 0 (control), 7.5, 15, 25 and 35 g L-1 for 3 weeks. Survival, oxygen consumption rate, hemolymphatic levels of glucose, lactate, sodium, potassium, pH, and free amino acids (FAA), as well as FAA concentration in muscle, we...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10236244_v41_n2_p125_Prymaczok |
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todo:paper_10236244_v41_n2_p125_Prymaczok2023-10-03T15:56:50Z Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities Prymaczok, N.C. Medesani, D.A. Rodriguez, E.M. Cherax quadricarinatus Crayfish-salinity Ionic challenge Ionic regulation Physiology adult amino acid crayfish ion metabolite osmoregulation pH physiology salinity survival Astacoidea Cherax quadricarinatus Adult male crayfish, Cherax quadricarinatus, were exposed to the salinities of 0 (control), 7.5, 15, 25 and 35 g L-1 for 3 weeks. Survival, oxygen consumption rate, hemolymphatic levels of glucose, lactate, sodium, potassium, pH, and free amino acids (FAA), as well as FAA concentration in muscle, were determined. Survival was significantly reduced (p < 0.05) only at the highest salinity assayed, together with a significant (p < 0.05) increase of glucose and decrease of lactate. Concerning ions, a hyper-regulation of both hemolymphatic sodium and potassium was maintained up to a salinity of 15 g L-1, at which hemolymph became isoionic with ambient water. A certain degree of ionic hypo-regulation was also noted. Hemolymph pH levels decreased as salinity increased from 0 to 15 g L-1. FAA content in muscle showed an increase parallel to that of hemolymphatic sodium, in accordance with their expected function in the isosmotic regulation of muscular cells. Fil:Prymaczok, N.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Medesani, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rodriguez, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10236244_v41_n2_p125_Prymaczok |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cherax quadricarinatus Crayfish-salinity Ionic challenge Ionic regulation Physiology adult amino acid crayfish ion metabolite osmoregulation pH physiology salinity survival Astacoidea Cherax quadricarinatus |
| spellingShingle |
Cherax quadricarinatus Crayfish-salinity Ionic challenge Ionic regulation Physiology adult amino acid crayfish ion metabolite osmoregulation pH physiology salinity survival Astacoidea Cherax quadricarinatus Prymaczok, N.C. Medesani, D.A. Rodriguez, E.M. Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities |
| topic_facet |
Cherax quadricarinatus Crayfish-salinity Ionic challenge Ionic regulation Physiology adult amino acid crayfish ion metabolite osmoregulation pH physiology salinity survival Astacoidea Cherax quadricarinatus |
| description |
Adult male crayfish, Cherax quadricarinatus, were exposed to the salinities of 0 (control), 7.5, 15, 25 and 35 g L-1 for 3 weeks. Survival, oxygen consumption rate, hemolymphatic levels of glucose, lactate, sodium, potassium, pH, and free amino acids (FAA), as well as FAA concentration in muscle, were determined. Survival was significantly reduced (p < 0.05) only at the highest salinity assayed, together with a significant (p < 0.05) increase of glucose and decrease of lactate. Concerning ions, a hyper-regulation of both hemolymphatic sodium and potassium was maintained up to a salinity of 15 g L-1, at which hemolymph became isoionic with ambient water. A certain degree of ionic hypo-regulation was also noted. Hemolymph pH levels decreased as salinity increased from 0 to 15 g L-1. FAA content in muscle showed an increase parallel to that of hemolymphatic sodium, in accordance with their expected function in the isosmotic regulation of muscular cells. |
| format |
JOUR |
| author |
Prymaczok, N.C. Medesani, D.A. Rodriguez, E.M. |
| author_facet |
Prymaczok, N.C. Medesani, D.A. Rodriguez, E.M. |
| author_sort |
Prymaczok, N.C. |
| title |
Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities |
| title_short |
Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities |
| title_full |
Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities |
| title_fullStr |
Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities |
| title_full_unstemmed |
Levels of ions and organic metabolites in the adult freshwater crayfish, Cherax quadricarinatus, exposed to different salinities |
| title_sort |
levels of ions and organic metabolites in the adult freshwater crayfish, cherax quadricarinatus, exposed to different salinities |
| url |
http://hdl.handle.net/20.500.12110/paper_10236244_v41_n2_p125_Prymaczok |
| work_keys_str_mv |
AT prymaczoknc levelsofionsandorganicmetabolitesintheadultfreshwatercrayfishcheraxquadricarinatusexposedtodifferentsalinities AT medesanida levelsofionsandorganicmetabolitesintheadultfreshwatercrayfishcheraxquadricarinatusexposedtodifferentsalinities AT rodriguezem levelsofionsandorganicmetabolitesintheadultfreshwatercrayfishcheraxquadricarinatusexposedtodifferentsalinities |
| _version_ |
1782024423180599296 |