{"id":3471,"date":"2021-02-01T10:39:54","date_gmt":"2021-02-01T18:39:54","guid":{"rendered":"https:\/\/calsport.org\/fisheriesblog\/?p=3471"},"modified":"2021-02-01T10:39:54","modified_gmt":"2021-02-01T18:39:54","slug":"winter-pulsed-flow-for-salmon-needed-now","status":"publish","type":"post","link":"https:\/\/calsport.org\/fisheriesblog\/?p=3471","title":{"rendered":"Winter Pulsed Flow for Salmon Needed Now!"},"content":{"rendered":"<p>Winter pulse flows benefit fall-run salmon fry by helping them emigrate to the Delta and Bay nursery areas (see discussion in <a href=\"https:\/\/calsport.org\/fisheriesblog\/?p=2501\">February 2019 post<\/a>).  The tailwater spawning reaches of dams need reservoir releases to stimulate emigration of fry (Figure 1).  Such releases piggy-back on stormwater flows in downstream tributaries, such as those in late January 2021 (Figure 2).  <\/p>\n<p>Nearly all Central Valley reservoirs are capturing recent high precipitation from their upper watersheds.  With forecasts of further substantial rainfall into mid-February 2021, modest reservoir releases would provide substantial potential benefits to Central Valley salmon populations. <\/p>\n<div id=\"attachment_3472\" style=\"width: 910px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3472\" src=\"https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/1.png\" alt=\"\" width=\"900\" height=\"500\" class=\"size-full wp-image-3472\" srcset=\"https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/1.png 900w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/1-300x167.png 300w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/1-768x427.png 768w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/1-500x278.png 500w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><p id=\"caption-attachment-3472\" class=\"wp-caption-text\">Figure 1.  Sacramento River fall-run salmon fry catch near Red Bluff (river-mile 240) in winter 2020.  Note that flow pulses stimulated winter fry emigration.<\/p><\/div>\n<div id=\"attachment_3473\" style=\"width: 1678px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3473\" src=\"https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2.jpg\" alt=\"\" width=\"1668\" height=\"804\" class=\"size-full wp-image-3473\" srcset=\"https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2.jpg 1668w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2-300x145.jpg 300w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2-1024x494.jpg 1024w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2-768x370.jpg 768w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2-1536x740.jpg 1536w, https:\/\/calsport.org\/fisheriesblog\/wp-content\/uploads\/2021\/02\/2-500x241.jpg 500w\" sizes=\"auto, (max-width: 1668px) 100vw, 1668px\" \/><p id=\"caption-attachment-3473\" class=\"wp-caption-text\">Figure 2.  Flows from Shasta\/Keswick reservoirs (river-mile 300, brown) and at downstream sites Bend Bridge (river-mile 250, green) and Wilkins Slough (river-mile 125, blue) in winter 2021.  Note that tributary inflows created flow pulses in lower reaches of the Sacramento River.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Winter pulse flows benefit fall-run salmon fry by helping them emigrate to the Delta and Bay nursery areas (see discussion in February 2019 post). The tailwater spawning reaches of dams need reservoir releases to stimulate emigration of fry (Figure 1). &hellip; <a href=\"https:\/\/calsport.org\/fisheriesblog\/?p=3471\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[13,12],"tags":[],"class_list":["post-3471","post","type-post","status-publish","format-standard","hentry","category-chinook","category-water-quality"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=\/wp\/v2\/posts\/3471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3471"}],"version-history":[{"count":1,"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=\/wp\/v2\/posts\/3471\/revisions"}],"predecessor-version":[{"id":3474,"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=\/wp\/v2\/posts\/3471\/revisions\/3474"}],"wp:attachment":[{"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/calsport.org\/fisheriesblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}