{"id":14779,"date":"2019-03-09T14:19:43","date_gmt":"2019-03-09T12:19:43","guid":{"rendered":"http:\/\/fishconsult.org\/?p=14779"},"modified":"2020-02-07T22:49:31","modified_gmt":"2020-02-07T20:49:31","slug":"how-biological-filter-for-aquaculture-looked-like-in-1970-auburn-university-usa","status":"publish","type":"post","link":"https:\/\/fishconsult.org\/?p=14779","title":{"rendered":"How biological filter for aquaculture looked like in 1970 (Auburn University &#8211; USA)"},"content":{"rendered":"\n<p>This inserted picture has been taken from a publication by Auburn University (USA) published on December, 1970. Being an Auburn University Alumni, I decided to share this picture along with the description: \u201c<em>Pond culture with Biological Filters: Water, pumped from a pond where fish are fed, is filtered through gravel covered with living microscopic organisms then returned through a gravity flow system. The photo shows a filter in the background, some of the ponds in services, the water return system in the foreground. With this system production of 10,000 pounds of catfish per acre in approximately 6 months has been obtained. Practical applications of the system are now being studied&#8221;<\/em>. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"685\" data-attachment-id=\"14778\" data-permalink=\"https:\/\/fishconsult.org\/?attachment_id=14778\" data-orig-file=\"https:\/\/i0.wp.com\/fishconsult.org\/wp-content\/uploads\/2019\/03\/Biological-filter-Auburn-University.png?fit=709%2C685&amp;ssl=1\" data-orig-size=\"709,685\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Biological filter (Auburn University)\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/fishconsult.org\/wp-content\/uploads\/2019\/03\/Biological-filter-Auburn-University.png?fit=709%2C685&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/fishconsult.org\/wp-content\/uploads\/2019\/03\/Biological-filter-Auburn-University.png?resize=709%2C685\" alt=\"\" class=\"wp-image-14778\" srcset=\"https:\/\/i0.wp.com\/fishconsult.org\/wp-content\/uploads\/2019\/03\/Biological-filter-Auburn-University.png?w=709&amp;ssl=1 709w, https:\/\/i0.wp.com\/fishconsult.org\/wp-content\/uploads\/2019\/03\/Biological-filter-Auburn-University.png?resize=300%2C290&amp;ssl=1 300w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>This inserted picture has been taken from a publication by Auburn University (USA) published on December, 1970. Being an Auburn University Alumni, I decided to share this picture along with the description: \u201cPond culture with Biological Filters: Water, pumped from a pond where fish are fed, is filtered through gravel covered with living microscopic organisms &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"https:\/\/fishconsult.org\/?p=14779\">Continue reading<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"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":[359,291,293],"tags":[286,6864,898,6865,2138],"class_list":["post-14779","post","type-post","status-publish","format-standard","hentry","category-aquaculture-and-artisanal-fishery-global-information-sharing","category-gallery-2","category-photos","tag-aquaculture","tag-auburn-university","tag-biological-filter","tag-international-center-for-aquaculture","tag-usa","item-wrap"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1NIq6-3Qn","jetpack_sharing_enabled":true,"jetpack-related-posts":[],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/fishconsult.org\/index.php?rest_route=\/wp\/v2\/posts\/14779","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fishconsult.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fishconsult.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fishconsult.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fishconsult.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14779"}],"version-history":[{"count":1,"href":"https:\/\/fishconsult.org\/index.php?rest_route=\/wp\/v2\/posts\/14779\/revisions"}],"predecessor-version":[{"id":14780,"href":"https:\/\/fishconsult.org\/index.php?rest_route=\/wp\/v2\/posts\/14779\/revisions\/14780"}],"wp:attachment":[{"href":"https:\/\/fishconsult.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fishconsult.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fishconsult.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}