{"id":18677,"date":"2025-03-31T17:19:00","date_gmt":"2025-03-31T10:19:00","guid":{"rendered":"https:\/\/fpik.unpad.ac.id\/?p=18677"},"modified":"2025-09-18T17:22:07","modified_gmt":"2025-09-18T10:22:07","slug":"how-light-and-temperature-tune-catfish-reproduction","status":"publish","type":"post","link":"https:\/\/fpik.unpad.ac.id\/en\/how-light-and-temperature-tune-catfish-reproduction\/","title":{"rendered":"How Light and Temperature Tune Catfish Reproduction"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-9d260ee2 wp-block-group-is-layout-grid\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_02-1.jpg\" alt=\"\" class=\"wp-image-18204\" srcset=\"https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_02-1.jpg 150w, https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_02-1-12x12.jpg 12w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_12.jpg\" alt=\"\" class=\"wp-image-18214\" srcset=\"https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_12.jpg 150w, https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_12-12x12.jpg 12w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_14.jpg\" alt=\"\" class=\"wp-image-18216\" srcset=\"https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_14.jpg 150w, https:\/\/fpik.unpad.ac.id\/wp-content\/uploads\/2025\/08\/E_PRINT_14-12x12.jpg 12w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Aquaculture producers need practical, low\u2011cost levers to improve spawning success without increasing environmental pressure. This research tests two such levers\u2014photoperiod (day\u2013night cycles) and water temperature\u2014on hormone profiles that control the reproductive cycle of female African catfish (Clarias gariepinus). The team measured melatonin, growth hormone, estradiol, and vitellogenin under controlled regimes, then linked hormonal responses to spawning performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The experiments reveal that optimized combinations of photoperiod and temperature synchronize endocrine signals, accelerating maturation and egg quality while avoiding stress responses. Extended\u2011dark or extended\u2011light cycles produce distinct melatonin patterns that cascade through growth and reproductive hormones. Within safe temperature windows, these cues translate into higher spawning efficiency and hatch rates. Because lighting and temperature are relatively inexpensive to adjust in hatchery settings, the findings are immediately actionable for small\u2011 and medium\u2011scale producers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beyond production gains, the study points to sustainability gains: better reproductive synchronization reduces broodstock waste, lowers energy and feed use per unit output, and supports responsible seed supply chains. The authors propose simple calendars and monitoring protocols that hatcheries can adopt to match seasonal demand and avoid over\u2011intensification.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By turning endocrine science into practical hatchery guidance, the work contributes to SDG&nbsp;2 (food security via efficient aquaculture), supports SDG&nbsp;14 (sustainable use of aquatic resources), and aligns with SDG&nbsp;12 (responsible production through resource\u2011efficient practices).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Read full paper here: <\/strong><a href=\"https:\/\/doi.org\/10.1016\/j.repbre.2025.01.002\">https:\/\/doi.org\/10.1016\/j.repbre.2025.01.002<\/a><\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>Credits<\/strong><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Universitas Padjadjaran authors: <strong>Epro Barades<\/strong>; <strong>Iskandar<\/strong>; <strong>Ibnu Dwi Buwono<\/strong>; <strong>Yuli Andriani<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Affiliations: Agricultural Science Study Program, Faculty of Agriculture, Universitas Padjadjaran, Sumedang, Indonesia; Department of Fisheries, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, Sumedang, Indonesia; Fish Hatchery Technology Study Program, Politeknik Negeri Lampung, Bandar Lampung, Indonesia<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Hashtags: <\/strong>#UnpadResearch #SDG2 #Aquaculture #Catfish #Photoperiod #Hatchery<\/p>","protected":false},"excerpt":{"rendered":"<p>Aquaculture producers need practical, low\u2011cost levers to improve spawning success without increasing environmental pressure. This research tests two such levers\u2014photoperiod (day\u2013night cycles) and water temperature\u2014on hormone profiles that control the reproductive cycle of female African catfish (Clarias gariepinus). The team measured melatonin, growth hormone, estradiol, and vitellogenin under controlled regimes, then linked hormonal responses to [&hellip;]<\/p>\n","protected":false},"author":1001036,"featured_media":18678,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68],"tags":[],"class_list":["post-18677","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sdgs-papers"],"_links":{"self":[{"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/posts\/18677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/users\/1001036"}],"replies":[{"embeddable":true,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/comments?post=18677"}],"version-history":[{"count":1,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/posts\/18677\/revisions"}],"predecessor-version":[{"id":18679,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/posts\/18677\/revisions\/18679"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/media\/18678"}],"wp:attachment":[{"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/media?parent=18677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/categories?post=18677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fpik.unpad.ac.id\/en\/wp-json\/wp\/v2\/tags?post=18677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}