{"id":1143,"date":"2016-04-05T11:48:53","date_gmt":"2016-04-05T15:48:53","guid":{"rendered":"https:\/\/umaine.edu\/cooperative-aquaculture\/?p=1143"},"modified":"2016-04-05T15:16:22","modified_gmt":"2016-04-05T19:16:22","slug":"halibut-hatchery-season","status":"publish","type":"post","link":"https:\/\/umaine.edu\/cooperative-aquaculture\/2016\/04\/05\/halibut-hatchery-season\/","title":{"rendered":"Halibut hatchery season"},"content":{"rendered":"<p>The normal spawning season for halibut in the North Atlantic is in late spring, but because our stock is held in indoor tanks we need to synchronize their breeding season by controlling temperature and photoperiod.\u00a0\u00a0 We have over 140 brood stock fish and many of these are now in spawning condition.\u00a0 For the next two months we will climb into the tanks with the fish and collect ripe gametes for incubation.\u00a0 Our first two batches are now incubating in the egg room, hopefully to be followed by many more.\u00a0 After two weeks the eggs hatch and then they are transferred to yolk-sac incubation tanks, to live off of their large yolk-sac reserves for another 45 days or so.\u00a0 It is only then that the delicate larvae are ready to start feeding in our hatchery tanks on live prey such as artemia.\u00a0 If all goes well, sometime in late summer we will have up to 30,000 juvenile halibut weaned onto formulated diets and ready to sell to our Canadian customer.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1159 aligncenter\" src=\"https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-300x240.jpg\" alt=\"Halibut embryo\" width=\"300\" height=\"240\" srcset=\"https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-300x240.jpg 300w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-768x614.jpg 768w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-105x84.jpg 105w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-210x168.jpg 210w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-317x254.jpg 317w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-634x507.jpg 634w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-423x338.jpg 423w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-846x677.jpg 846w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n-951x761.jpg 951w, https:\/\/umaine.edu\/cooperative-aquaculture\/wp-content\/uploads\/sites\/75\/2016\/04\/1173643_10153338650407554_6255644349386042254_n.jpg 960w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The normal spawning season for halibut in the North Atlantic is in late spring, but because our stock is held in indoor tanks we need to synchronize their breeding season by controlling temperature and photoperiod.\u00a0\u00a0 We have over 140 brood stock fish and many of these are now in spawning condition.\u00a0 For the next two [&hellip;]<\/p>\n","protected":false},"author":261,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1143","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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