{"id":5064,"date":"2016-06-22T09:50:06","date_gmt":"2016-06-22T08:50:06","guid":{"rendered":"https:\/\/blogs.gov.scot\/marine-scotland\/?p=5064"},"modified":"2016-08-25T16:39:29","modified_gmt":"2016-08-25T15:39:29","slug":"calculating-shellfish-stock-figures","status":"publish","type":"post","link":"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/","title":{"rendered":"Calculating shellfish stock figures"},"content":{"rendered":"<p><a href=\"https:\/\/blogs.gov.scot\/marine-scotland\/wp-content\/uploads\/sites\/23\/2016\/06\/SMFS-cover-0716.jpg\"><img decoding=\"async\" class=\"size-medium wp-image-5284 alignright lazyload\" data-src=\"https:\/\/blogs.gov.scot\/marine-scotland\/wp-content\/uploads\/sites\/23\/2016\/06\/SMFS-cover-0716-212x300.jpg\" alt=\"SMFS cover 0716\" width=\"212\" height=\"300\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 212px; --smush-placeholder-aspect-ratio: 212\/300;\" \/><\/a><\/p>\n<p>A new <a href=\"http:\/\/www.gov.scot\/Topics\/marine\/Publications\/stats\/Science\/SMFS\/2016\/0716\">Scottish Marine &amp; Freshwater Science report<\/a> has been published looking at indicators\u00a0of changes\u00a0for Scottish shellfish stocks.<\/p>\n<p>Shellfish are important to Scottish fisheries &#8211;\u00a0a total of 61 544 tonnes of shellfish with a value of \u00a3150 million were landed by Scottish vessels in 2014. However, for many shellfish stocks, the limited biological data and lack of appropriate monitoring\u00a0make\u00a0assessing stock\u00a0challenging.<\/p>\n<p>The data limitation is due to insufficient methods for the ageing of crustaceans. For sedentary shellfish stocks, exploited by localised fisheries, data at the appropriate spatial scale is often not available and measured (or derived) regularly, indicators are able to show changes in the state of the population or stock, and fishing mortality to support a data-limited stock assessment.<\/p>\n<p>In this report, we review the use of indicators calculated from a number of sources:<\/p>\n<ul>\n<li>commercial fishery data<\/li>\n<li>fishery-independent survey data<\/li>\n<li>available biological data<\/li>\n<\/ul>\n<p>and we look at their use in the assessment, advisory process and management of data limited stocks, both fish and shellfish, worldwide.<\/p>\n<p><strong>Further Information<\/strong><\/p>\n<ul>\n<li><a href=\"http:\/\/www.gov.scot\/Topics\/marine\/Publications\/stats\/Science\/SMFS\/2016\/0716\">Read the report<\/a><\/li>\n<li><a href=\"http:\/\/www.gov.scot\/Topics\/marine\/science\">Marine Scotland Science<\/a><\/li>\n<li><a href=\"http:\/\/www.gov.scot\/Topics\/marine\/Publications\/publicationslatest\/farmedfish\/fishandshellfishstocks\/2016\">Fish &amp; Shellfish Stock information<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A new Scottish Marine &amp; Freshwater Science report has been published looking at indicators\u00a0of changes\u00a0for Scottish shellfish stocks. Shellfish are important to Scottish fisheries &#8211;\u00a0a total of 61 544 tonnes of shellfish with a value of \u00a3150 million were landed by Scottish vessels in 2014. However, for many shellfish stocks, the limited biological data and&#8230;<\/p>\n","protected":false},"author":115,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,15,22],"tags":[],"class_list":["post-5064","post","type-post","status-publish","format-standard","hentry","category-aquaculture","category-mss","category-smfs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Calculating shellfish stock figures - Marine<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calculating shellfish stock figures - Marine\" \/>\n<meta property=\"og:description\" content=\"A new Scottish Marine &amp; Freshwater Science report has been published looking at indicators\u00a0of changes\u00a0for Scottish shellfish stocks. Shellfish are important to Scottish fisheries &#8211;\u00a0a total of 61 544 tonnes of shellfish with a value of \u00a3150 million were landed by Scottish vessels in 2014. However, for many shellfish stocks, the limited biological data and...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/\" \/>\n<meta property=\"og:site_name\" content=\"Marine\" \/>\n<meta property=\"article:published_time\" content=\"2016-06-22T08:50:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-08-25T15:39:29+00:00\" \/>\n<meta name=\"author\" content=\"Marine Scotland Communications\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marine Scotland Communications\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/\"},\"author\":{\"name\":\"Marine Scotland Communications\",\"@id\":\"https:\/\/blogs.gov.scot\/marine-scotland\/#\/schema\/person\/4421233cd09c62fea38ad8ecc3f75651\"},\"headline\":\"Calculating shellfish stock figures\",\"datePublished\":\"2016-06-22T08:50:06+00:00\",\"dateModified\":\"2016-08-25T15:39:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/\"},\"wordCount\":184,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.gov.scot\/marine-scotland\/wp-content\/uploads\/sites\/23\/2016\/06\/SMFS-cover-0716-212x300.jpg\",\"articleSection\":[\"Aquaculture\",\"Marine Directorate Science\",\"Scottish Marine and Freshwater Science report series\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/\",\"url\":\"https:\/\/blogs.gov.scot\/marine-scotland\/2016\/06\/22\/calculating-shellfish-stock-figures\/\",\"name\":\"Calculating shellfish stock figures - 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