{"id":10376,"date":"2016-02-24T09:35:52","date_gmt":"2016-02-24T16:35:52","guid":{"rendered":"http:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/?p=10376"},"modified":"2016-02-24T09:35:52","modified_gmt":"2016-02-24T16:35:52","slug":"nigiri-project-mixing-salmon-and-rice-fields-now-in-fifth-year-from-uc-davis","status":"publish","type":"post","link":"https:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/index.php\/2016\/02\/24\/nigiri-project-mixing-salmon-and-rice-fields-now-in-fifth-year-from-uc-davis\/","title":{"rendered":"&#8216;Nigiri Project&#8217; mixing salmon and rice fields now in fifth year &#8211; from UC Davis"},"content":{"rendered":"<div id=\"attachment_10377\" style=\"width: 310px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/wp-content\/uploads\/2016\/02\/Fish.jpg\"><img decoding=\"async\" aria-describedby=\"caption-attachment-10377\" class=\"size-medium wp-image-10377\" src=\"http:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/wp-content\/uploads\/2016\/02\/Fish-300x233.jpg\" alt=\"Researchers from UC Davis, CalTrout and Cal Marsh and Farms count, weigh and measure juvenile Chinook salmon that are going into experimental rice fields at Knaggs Ranch on the Yolo Bypass in February 2016. Credit: Carson Jeffres\/UC Davis\" width=\"300\" height=\"233\" srcset=\"https:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/wp-content\/uploads\/2016\/02\/Fish-300x233.jpg 300w, https:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/wp-content\/uploads\/2016\/02\/Fish-1024x796.jpg 1024w, https:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/wp-content\/uploads\/2016\/02\/Fish.jpg 2000w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-10377\" class=\"wp-caption-text\">Researchers from UC Davis, CalTrout and Cal Marsh and Farms count, weigh and measure juvenile Chinook salmon that are going into experimental rice fields at Knaggs Ranch on the Yolo Bypass in February 2016.<em> Credit: Carson Jeffres\/UC Davis<\/em><\/p><\/div>\n<p>An annual experiment to \u201cplant\u201d salmon in Yolo County rice fields aims to better explain how floodplains support strong salmon populations. Dubbed the \u201cNigiri Project\u201d for its sushi-like marriage of fish and rice, the research is a collaborative project among the UC Davis Center for Watershed Sciences, the California Department of Water Resources and nonprofit organization California Trout.<\/p>\n<p>For the first time this year, the agricultural floodplain habitat experiment will compare food web productivity and fish growth in three different kinds of river habitat.<\/p>\n<p>For the course of the experiment, a group of juvenile Chinook salmon will be held in underwater pens on flooded rice fields, as in years past; a second group will be held in pens floating in an agricultural canal; and a third group will be held in floating pens nearby in the Sacramento River. The experiment began on Feb. 19, and the fish will be released after approximately four weeks.<\/p>\n<p>\u201cAt this point, we feel confident that giving native fish access to the food-rich environment of the floodplain will play a critical role in recovering imperiled salmon,\u201d said Carson Jeffres, field and lab director of the UC Davis Center for Watershed Sciences. \u201cNow we are interested in how food made on the floodplain can benefit the entire river and Delta.\u201d<\/p>\n<h2><strong>Floodplains a \u2018bug buffet\u2019 for salmon<\/strong><\/h2>\n<p>Born in the gravel\u00a0of mountain streams, Central Valley salmon migrate to the ocean where they grow for one to three years before returning to rivers to spawn. Juvenile fish that are larger and healthier when they enter the ocean have better odds of returning as adults.<\/p>\n<p>\u201cFloodplain habitats are essentially a bug buffet for small fish,\u201d said Jacob Katz, Central California director for California Trout. \u201cOur previous results have shown that the food-rich floodplains appear to act as an important pit stop for juvenile fish, where they can fuel up on their downstream journey to sea.\u201d<\/p>\n<p>Unfortunately for hungry salmon, more than 95 percent of natural floodplain wetlands have been eliminated by the development of the Central Valley for farms and houses. In previous years, the Nigiri Project has shown that off-season agricultural fields can provide critical floodplain habitat for endangered fish.<\/p>\n<p>\u201cFish have little opportunity to reap the benefits of floodplains because they are nearly all cut off from river channels,\u201d said Louise Conrad of the California Department of Water Resources. \u201cThe Yolo Bypass is one of the last remaining active floodplain areas in the Central Valley. Enhancing the opportunity for salmon to access and use its floodplain areas could make a huge difference for salmon while also helping to recharge groundwater and improve flood safety.\u201d<\/p>\n<h2><strong>Four years of fast-growing fish<\/strong><\/h2>\n<p>For four consecutive winters, experiments conducted on rice fields at the Knaggs Ranch property on the Yolo Bypass documented the fastest growth of juvenile Chinook salmon ever recorded in the Central Valley. These results suggest that through better planning and engineering, farm fields that produce agricultural crops in summer could also produce food and habitat for fish and wildlife during winter when crops are not grown.<\/p>\n<p>The experiment suggests that floodplains on farmland can also be thought of as \u201csurrogate wetlands\u201d that can be managed to mimic the Sacramento River system\u2019s natural annual flooding cycle, which native fish species evolved to depend upon. Agricultural runoff water is used to flood the fields for the duration of the experiment. This recycled water fuels the floodplain food web before being flushed back into the Delta ecosystem through agricultural canals, adding to the food supply for all fish living in the system. No new water is used to conduct the experiment.<\/p>\n<p>This natural process of slowing down and spreading out shallow water across the floodplain creates the conditions that lead to an abundant food web. Sunlight falling on water makes algae, algae feeds bugs, and bugs feed native fish and birds. In contrast, very little food to support aquatic life is produced when rivers are narrowly confined between levees.<\/p>\n<p>\u201cCalifornia\u2019s water supply for both people and fish will be more secure when our water policy works with natural processes, instead of against them,\u201d Katz said. \u201cThis work leverages ecology as technology and points us toward efficient and cost effective real-world water solutions that support both fish and farms.\u201d<\/p>\n<p>The project was funded this year by the U.S. Bureau of Reclamation, California Trout, and California Department of Water Resources.<\/p>\n<p><a href=\"https:\/\/www.ucdavis.edu\/news\/nigiri-project-mixes-salmon-and-rice-fields-fifth-year-floodplain\">Link to blog post<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An annual experiment to \u201cplant\u201d salmon in Yolo County rice fields aims to better explain how floodplains support strong salmon populations. Dubbed the \u201cNigiri Project\u201d for its sushi-like marriage of fish and rice, the research is a collaborative project among &hellip; <a href=\"https:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/index.php\/2016\/02\/24\/nigiri-project-mixing-salmon-and-rice-fields-now-in-fifth-year-from-uc-davis\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-10376","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\r\n<title>&#039;Nigiri Project&#039; mixing salmon and rice fields now in fifth year - from UC Davis - CDFA&#039;s Planting Seeds Blog<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/plantingseedsblog.cdfa.ca.gov\/wordpress\/index.php\/2016\/02\/24\/nigiri-project-mixing-salmon-and-rice-fields-now-in-fifth-year-from-uc-davis\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"&#039;Nigiri Project&#039; mixing salmon and rice fields now in fifth year - from UC Davis - CDFA&#039;s Planting Seeds Blog\" \/>\r\n<meta property=\"og:description\" content=\"An annual experiment to \u201cplant\u201d salmon in Yolo County rice fields aims to better explain how floodplains support strong salmon populations. 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