{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:10:49Z","timestamp":1784247049987,"version":"3.55.0"},"reference-count":35,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2023,4,4]],"date-time":"2023-04-04T00:00:00Z","timestamp":1680566400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Anat Histol Embryol"],"published-print":{"date-parts":[[2023,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The mapar\u00e1, <jats:italic>Hypophthalmus marginatus<\/jats:italic>, is a rheophilic and planktophagous catfish and it is one of the main fishing resources in the Amazon region. To understand its nutritional characteristics, this work described the morphology and histochemistry of the digestive tract of <jats:italic>H. marginatus<\/jats:italic>. The oropharyngeal cavity has abundant, long and thin gill rakers, responsible for retaining plankton, while the short and muscular oesophagus promotes the transport of these items to the stomach and prevents water ingestion. The stratified oesophageal epithelium has goblet cells with mucins predominantly neutral that could facilitate the food passage the food passage. The U\u2010shaped siphonal stomach shows a columnar epithelium with neutral mucins to protect against autodigestion. The cardiac and fundic regions have gastric glands, while the pyloric region has a thick muscular layer with a sphincter. The coiled intestine with intestinal quotient of 2.14\u2009\u00b1\u20090.5 shows long longitudinal folds in the anterior region, decreasing in height in the aboral direction, and highlighting its function in digestion and nutrient absorption. Goblet cells are abundant in posterior intestine and rectum, and rectum shows epithelial cells with mucins in the apical cytoplasm, for protection and defecation. Intraepithelial lymphocytes also are abundant in posterior intestine and rectum, and it acts in immunological defence.<\/jats:p>","DOI":"10.1111\/ahe.12918","type":"journal-article","created":{"date-parts":[[2023,4,4]],"date-time":"2023-04-04T14:41:11Z","timestamp":1680619271000},"page":"603-610","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Morphological analysis of the digestive tract of <i>Hypophthalmus marginatus<\/i> (Valenciennes, 1840)"],"prefix":"10.1111","volume":"52","author":[{"given":"Roger Franzoni","family":"Pozzer","sequence":"first","affiliation":[{"name":"Aquaculture Center of UNESP S\u00e3o Paulo State University (UNESP)  Via de Acesso Prof. Paulo Donato Castellane 14884\u2010900 Jaboticabal Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudemir","family":"Kuhn\u00a0Faccioli","sequence":"additional","affiliation":[{"name":"Department of Human Anatomy, Institute of Biomedical Sciences Federal University of Uberl\u00e2ndia (UFU)  1720 Par\u00e1 Avenue, 38 400\u2010902 Uberl\u00e2ndia Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Renata Alari","family":"Chedid","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, School of Sciences S\u00e3o Paulo State University (UNESP)  14\u201001 Engenheiro Luiz Edmundo Carrijo Coube Avenue 17033\u2010360 Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ricardo","family":"Hideo\u00a0Mori","sequence":"additional","affiliation":[{"name":"Department of Biological Sciences, School of Sciences S\u00e3o Paulo State University (UNESP)  14\u201001 Engenheiro Luiz Edmundo Carrijo Coube Avenue 17033\u2010360 Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergio Ricardo","family":"Batlouni","sequence":"additional","affiliation":[{"name":"Aquaculture Center of UNESP S\u00e3o Paulo State University (UNESP)  Via de Acesso Prof. Paulo Donato Castellane 14884\u2010900 Jaboticabal Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irene Bastos","family":"Franceschini\u00a0Vicentini","sequence":"additional","affiliation":[{"name":"Aquaculture Center of UNESP S\u00e3o Paulo State University (UNESP)  Via de Acesso Prof. Paulo Donato Castellane 14884\u2010900 Jaboticabal Brazil"},{"name":"Department of Biological Sciences, School of Sciences S\u00e3o Paulo State University (UNESP)  14\u201001 Engenheiro Luiz Edmundo Carrijo Coube Avenue 17033\u2010360 Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos Alberto","family":"Vicentini","sequence":"additional","affiliation":[{"name":"Aquaculture Center of UNESP S\u00e3o Paulo State University (UNESP)  Via de Acesso Prof. Paulo Donato Castellane 14884\u2010900 Jaboticabal Brazil"},{"name":"Department of Biological Sciences, School of Sciences S\u00e3o Paulo State University (UNESP)  14\u201001 Engenheiro Luiz Edmundo Carrijo Coube Avenue 17033\u2010360 Bauru Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,4,4]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"401","article-title":"Dieta de Hypophthalmus edentatus (Spix, 1829) (Osteichthyes, Hypophthalmidae) e varia\u00e7\u00f5es de seu estoque no reservat\u00f3rio de Itaipu","volume":"24","author":"Abujanra F.","year":"2002","journal-title":"Acta Scientiarum Biological Sciences"},{"key":"e_1_2_8_3_1","unstructured":"Alc\u00e2ntara Neto C. P.(1994).Ecologia da pesca dos mapar\u00e1s Hypophthalmusspp. (Siluriformes Hypophthalmidae) no lago Grande de Monte Alegre Baixo Amazonas Par\u00e1.Disserta\u00e7\u00e3o Universidade Federal do Par\u00e1\/Museu Paraense Em\u00edlio Goeldi Bel\u00e9m pp 1\u2013141."},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.1051900110"},{"key":"e_1_2_8_5_1","volume-title":"Fisiologia de peixes aplicada \u00e0 piscicultura","author":"Baldisserotto B.","year":"2009"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0264.2009.00932.x"},{"key":"e_1_2_8_7_1","first-page":"579","article-title":"A histological, histochemical and ultrastructural study of the digestive tract of Dentex dentex (Pisces, Sparidae)","volume":"21","author":"Carrass\u00f3n M.","year":"2006","journal-title":"Histology and Histopathology"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1590\/1809-43921980103545"},{"key":"e_1_2_8_9_1","first-page":"165","article-title":"O potencial do Mapar\u00e1 Hypophthalmus Spp. (Osteichthyes, Siluriformes) como uma esp\u00e9cie alternativa para a piscicultura na Amaz\u00f4nia","volume":"36","author":"Costa T. 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