{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,5]],"date-time":"2026-08-05T05:30:33Z","timestamp":1785907833078,"version":"3.56.0"},"reference-count":47,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,10,1]],"date-time":"2023-10-01T00:00:00Z","timestamp":1696118400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Fish Biology"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The scalloped perchlet <jats:italic>Ambassis nalua<\/jats:italic> is one of the dominant fishes in the Estuarine Pranburi River, Thailand. It is suggested that this fish is in the secondary trophic level with a carnivorous nature. Studies on digestive system will help us further identify the niche of this species in the food web\/food chain. The present study therefore aimed to report the detailed structure and ultrastructure of <jats:italic>A<\/jats:italic>. <jats:italic>nalua<\/jats:italic> digestive system. Fish samples (<jats:italic>n<\/jats:italic>\u2009=\u200930) with a total length of 5.7\u2009\u00b1\u20090.5\u2009cm were obtained using beach seines from the Estuarine Pranburi River. Their digestive tract length and intestine coeficient were 3.6\u2009\u00b1\u20090.07\u2009cm and 0.91, respectively. Light microscopic observation showed that the digestive wall comprised four layers, namely mucosa, submucosa, muscularis, and serosa. The prominent mucous\u2010secreting cells were found in the mucosal oesophagus. The stomach had many gastric folds, with height and width being 649.76\u2009\u00b1\u200985.15 and 370.30\u2009\u00b1\u200968.56\u2009\u03bcm, respectively. Gastric glands were found in the anterior stomach but not in the posterior stomach. Each gastric gland was made up of a single type of columnar cells. The gastric cells were ultrastructurally characterized by numerous mitochondria and well\u2010developed secretory granules of varying sizes. A few small vacuoles were also identified in the apical area of the gastric cells. The intestine had two regions (anterior and posterior intestines), and pyloric caecum was absent. The density of the goblet cell was significantly higher in the posterior intestine. These results provide basic knowledge of the digestive system of <jats:italic>A<\/jats:italic>. <jats:italic>nalua<\/jats:italic>, and the low intestine coefficient and the absence of pyloric caecum suggest the carnivorous feeding habit of this species.<\/jats:p>","DOI":"10.1111\/jfb.15566","type":"journal-article","created":{"date-parts":[[2023,9,16]],"date-time":"2023-09-16T06:24:41Z","timestamp":1694845481000},"page":"113-124","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Histological structure of the digestive tract, liver, and pancreas of <scp><i>Ambassis nalua<\/i><\/scp> (Hamilton, 1822<b>)<\/b> with ultrastructural details of the gastric gland"],"prefix":"10.1111","volume":"104","author":[{"given":"Nutchar","family":"Sukkhee","sequence":"first","affiliation":[{"name":"Department of Marine Science, Faculty of Science Chulalongkorn University  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7194-9702","authenticated-orcid":false,"given":"Sinlapachai","family":"Senarat","sequence":"additional","affiliation":[{"name":"Division of Biological Science, Faculty of Science Prince of Songkla University  Songkhla Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natthawut","family":"Charoenphon","sequence":"additional","affiliation":[{"name":"Department of Anatomy, Faculty of Medical Science Naresuan University  Phitsanulok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gen","family":"Kaneko","sequence":"additional","affiliation":[{"name":"College of Natural and Applied Science University of Houston\u2010Victoria  Victoria Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jes","family":"Kettratad","sequence":"additional","affiliation":[{"name":"Department of Marine Science, Faculty of Science Chulalongkorn University  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kitipong","family":"Angsujinda","sequence":"additional","affiliation":[{"name":"Aquatic Resources Research Institute Chulalongkorn University  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piyamat","family":"Kongtueng","sequence":"additional","affiliation":[{"name":"Research Center for Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine Chiang Mai University  Chiang Mai Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tappadit","family":"Mitparian","sequence":"additional","affiliation":[{"name":"Inland Aquaculture Research and Development Division Department of Fisheries  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tassaporn","family":"Kanjanarakha","sequence":"additional","affiliation":[{"name":"Aquatic Resources Research Institute Chulalongkorn University  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sumate","family":"Ampawong","sequence":"additional","affiliation":[{"name":"Department of Tropical Pathology, Faculty of Tropical Medicine Mahidol University  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,10]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0968-4328(96)00041-8"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1095-8649.2001.tb02261.x"},{"key":"e_1_2_8_4_1","first-page":"511","article-title":"Histological and histochemical observation in the stomach of the Senegal sole, Solea senegalensis","volume":"16","author":"Arellano J. 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