{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,6]],"date-time":"2025-08-06T12:41:50Z","timestamp":1754484110940,"version":"3.41.2"},"reference-count":19,"publisher":"FapUNIFESP (SciELO)","issue":"10","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cienc. Rural"],"abstract":"<jats:p>ABSTRACT: The current study tested the hypothesis that an increase in the ionic levels (Na+, Cl-, Ca2+, Mg2+, and K+) in the gastrointestinal tract (GIT), and hepatosomatic index (HSI), gonadosomatic index (GSI), and Fulton\u2019s condition factor (FCF) are associated with the reproduction period of silver catfish (Rhamdia quelen). So, we verified ionic levels of the fluid phase of the different portions of the GIT content, HSI, GSI, and FCF of silver catfish in different seasons in a dam in southern Brazil. The highest Na+ and Cl- levels in GIT were found in spring. The stomach\u2019s Na+ and Cl- values were lower than the other segments. The K+ and Ca2+ levels in GIT were higher in winter, except in the stomach, where the values increased in summer. The highest K+ levels were reported in the anterior intestine. The highest Ca2+ levels in winter and spring were reported in the anterior and mid-intestines. In summer, the Mg2+ levels in the intestine were lower. The values of GSI and FCF were higher in winter and spring, and those of HSI were higher in winter. In conclusion, ions in the GIT and HSI, GSI, and FCF were higher in the reproduction period (winter for spring).<\/jats:p>","DOI":"10.1590\/0103-8478cr20230571","type":"journal-article","created":{"date-parts":[[2024,6,21]],"date-time":"2024-06-21T10:35:05Z","timestamp":1718966105000},"source":"Crossref","is-referenced-by-count":2,"title":["Ions levels in the gastrointestinal tract content of silver catfish Rhamdia quelen (Siluriformes: Heptapteridae) are related to the reproduction period"],"prefix":"10.1590","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2418-6818","authenticated-orcid":false,"given":"Alexssandro Geferson","family":"Becker","sequence":"first","affiliation":[{"name":"Universidade Federal do Paran\u00e1 (UFPR),  Brasil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8770-0100","authenticated-orcid":false,"given":"Bernardo","family":"Baldisserotto","sequence":"additional","affiliation":[{"name":"Universidade Federal de Santa Maria (UFSM),  Brasil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0114-0334","authenticated-orcid":false,"given":"Carlos Eduardo","family":"Copatti","sequence":"additional","affiliation":[{"name":"Universidade Federal da Bahia (UFBA),  Brasil"}]}],"member":"530","published-online":{"date-parts":[[2024]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.aquatox.2003.12.004","article-title":"A protective effect of dietary calcium against acute waterborne cadmium uptake in rainbow trout","volume":"67","author":"BALDISSEROTTO B.","year":"2004","journal-title":"Aquatic Toxicology"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"R410","DOI":"10.1152\/ajpregu.00033.2019","article-title":"Osmoregulatory role of the intestine in the sea lamprey (Petromyzon marinus)","volume":"318","author":"BARANY A.","year":"2020","journal-title":"American Journal of Physiology-Regulatory Integrative and Comparative Physiology"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1007\/s10695-006-9102-9","article-title":"Ion levels in the gastrointestinal tract content and plasma of four teleosts with different feeding habits","volume":"32","author":"BECKER A. G.","year":"2006","journal-title":"Fish Physiology and Biochemistry"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"1768","DOI":"10.1590\/S0103-84782009005000132","article-title":"Dissolved oxygen and ammonia levels in water that affect plasma ionic content and gallbladder bile in silver catfish","volume":"39","author":"BECKER A. G.","year":"2009","journal-title":"Ci\u00eancia Rural"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"1001","DOI":"10.1007\/s10695-011-9585-x","article-title":"Ion levels in the gastrointestinal tract content of freshwater and marine-estuarine teleosts","volume":"38","author":"BECKER A. G.","year":"2012","journal-title":"Fish Physiology and Biochemistry"},{"key":"ref6","doi-asserted-by":"crossref","first-page":"R1764","DOI":"10.1152\/ajpregu.00224.2006","article-title":"Gastrointestinal processing of Na+, Cl- and K+ during digestion: implications for homeostatic balance in freshwater rainbow trout","volume":"291","author":"BUCKING C.","year":"2006","journal-title":"American Journal of Physiology-Regulatory Integrative and Comparative Physiology"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"1883","DOI":"10.1242\/jeb.02205","article-title":"Water dynamics in the digestive tract of the freshwater rainbow trout during the processing of a single meal","volume":"209","author":"BUCKING C.","year":"2006","journal-title":"Journal of Experimental Biology"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"349","DOI":"10.1007\/s00360-006-0134-3","article-title":"Gastrointestinal transport of Ca2+ and Mg2+ during the digestion of a single meal in the freshwater rainbow trout","volume":"177","author":"BUCKING C.","year":"2007","journal-title":"Journal of Comparative Physiology B"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"775","DOI":"10.1111\/j.1095-8649.1995.tb06002.x","article-title":"Condition factor and hepatosomatic index as estimates of energy status in male three-spined stickleback","volume":"47","author":"CHELLAPPA S.","year":"1995","journal-title":"Journal of Fish Biology"},{"key":"ref10","doi-asserted-by":"crossref","first-page":"738928","DOI":"10.1016\/j.aquaculture.2022.738928","article-title":"Effect of dietary electrolyte balance on the interplay between water fluxes and digestive functioning along the gastrointestinal tract of freshwater rainbow trout (Oncorhynchus mykiss)","volume":"563","author":"CIAVONI E.","year":"2023","journal-title":"Aquaculture"},{"key":"ref11","series-title":"Biology and aquaculture of tilapia","first-page":"104","volume-title":"Osmoregulation in tilapia: Environmental factors and internal mechanisms","author":"COPATTI C. E.","year":"2021"},{"key":"ref12","first-page":"3991","article-title":"Tolerance of piava juveniles to different ammonia concentrations","volume":"36","author":"COPATTI C. E.","year":"2015","journal-title":"Semina: Ci\u00eancias Agr\u00e1rias"},{"key":"ref13","first-page":"129","article-title":"Macrodieta de tr\u00eas esp\u00e9cies de peixes do rio Cambar\u00e1, Bacia do rio Uruguai","volume":"36","author":"COPATTI C. E.","year":"2012","journal-title":"Perspectiva"},{"key":"ref14","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s003000050098","article-title":"Morphology of the digestive system of Antarctic nototheniid fishes","volume":"17","author":"EASTMAN J. T.","year":"1997","journal-title":"Polar Biology"},{"key":"ref15","series-title":"Cellular and molecular approaches to fish ionic regulation","first-page":"317","volume-title":"Calcium process transport in fishes","volume":"14","author":"FLIK G.","year":"1995"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1111\/j.1095-8649.2012.03275.x","article-title":"In vitro characterization of calcium transport along the gastrointestinal tract of rainbow trout Oncorhynchus mykiss","volume":"81","author":"KLINCK J. S.","year":"2012","journal-title":"Journal of Fish Biology"},{"key":"ref17","doi-asserted-by":"crossref","first-page":"1003","DOI":"10.1007\/s00360-014-0855-7","article-title":"An in vitro investigation of gastrointestinal Na+ uptake mechanisms in freshwater rainbow trout","volume":"184","author":"NADELLA S. 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M.","year":"1956","journal-title":"Analytical Chemistry"}],"container-title":["Ci\u00eancia Rural"],"original-title":["N\u00edveis de \u00edons no conte\u00fado do trato gastrointestinal de jundi\u00e1 Rhamdia quelen (Siluriformes: Heptapteridae) s\u00e3o relacionados ao per\u00edodo reprodutivo"],"link":[{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_pdf&pid=S0103-84782024001000701&tlng=en","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,21]],"date-time":"2024-06-21T10:35:22Z","timestamp":1718966122000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0103-84782024001000701&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024]]},"references-count":19,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2024]]}},"alternative-id":["S0103-84782024001000701"],"URL":"https:\/\/doi.org\/10.1590\/0103-8478cr20230571","relation":{},"ISSN":["1678-4596","0103-8478"],"issn-type":[{"type":"electronic","value":"1678-4596"},{"type":"print","value":"0103-8478"}],"subject":[],"published":{"date-parts":[[2024]]},"article-number":"e20230571"}}