{"id":1957,"date":"2011-12-21T00:00:48","date_gmt":"2011-12-20T23:00:48","guid":{"rendered":"https:\/\/www.azti.es\/rim\/?p=1957"},"modified":"2021-11-24T09:45:35","modified_gmt":"2021-11-24T08:45:35","slug":"rim191-trophic-studies-of-small-pelagic-fish-in-the-bay-of-biscay-methodological-aspects","status":"publish","type":"post","link":"https:\/\/www.azti.es\/rim\/rim191-trophic-studies-of-small-pelagic-fish-in-the-bay-of-biscay-methodological-aspects\/","title":{"rendered":"RIM19(1): Trophic studies of small pelagic fish in the Bay of Biscay: methodological aspects"},"content":{"rendered":"<p><strong>Author \/ Editor<\/strong>: Eneko Bachiller (AZTI-Tecnalia)<\/p>\n<p><strong>Year<\/strong>: 2012<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;\"><strong>Content<\/strong>: \u00a0In trophic studies of small pelagic fish, comparisons between gut contents and the available food in field are commonly limited by the sampling procedure. In this sense, different sized zooplankton samples can differ depending on the mesh size of the sampling net. In the same way, the variability on the distribution of both predators and preys as a function of environmental variables can be a limiting factor when taking samples and hence, that could be reflected in stomach contents. In this study different aspects are discussed in order to optimize the sampling design addressing trophic studies in the Bay of Biscay, presenting also unpublished information about the distribution of both zooplankton and the main small pelagic species.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;\">This way, it is observed that 63 \u00b5m and 150 \u00b5m mesh Pairovet nets are not enough to catch the whole prey size spectrum found in stomachs of fish. In addition, many geographical areas are proposed in order to detect the variability of the distribution of both predators and preys; in the same way, the importance of sampling in different time ranges is discussed, as well as the regurgitation problem that long trawls could suppose for fish due to the stress caused. Finally, since stomach contents can differ from one fish to other, the significance of the individual fish analysis is highlighted, defining the optimum minimum sample size in order to detect a significant percentage of the prey diversity found in different small pelagic species.<\/p>\n<p><strong>Contact<\/strong>: <a href=\"mailto:biblioteca@azti.es\">biblioteca@azti.es<\/a><\/p>\n<p><a href=\"https:\/\/www.azti.es\/rim\/wp-content\/uploads\/2021\/11\/RIM19_1.pdf\"><strong><span class=\"doclink\">Download document: RIM 19_1 (7,12 Mb)<\/span><\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Author \/ Editor: Eneko Bachiller (AZTI-Tecnalia) Year: 2012 Content: \u00a0In trophic studies of small pelagic fish, comparisons between gut contents and the available food in field are commonly limited by the sampling procedure. In this sense, different sized zooplankton samples can differ depending on the mesh size of the sampling net. In the same way,&hellip;&nbsp;<\/p>\n","protected":false},"author":2,"featured_media":1528,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[120,113],"tags":[],"class_list":["post-1957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rim-2","category-sin-categoria-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RIM19(1): Trophic studies of small pelagic fish in the Bay of Biscay: methodological aspects -<\/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:\/\/www.azti.es\/rim\/rim191-estudios-troficos-de-pequenos-peces-pelagicos-en-el-golfo-de-bizkaia-aspectos-metodologicos\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RIM19(1): Trophic studies of small pelagic fish in the Bay of Biscay: methodological aspects -\" \/>\n<meta property=\"og:description\" content=\"Author \/ Editor: Eneko Bachiller (AZTI-Tecnalia) Year: 2012 Content: \u00a0In trophic studies of small pelagic fish, comparisons between gut contents and the available food in field are commonly limited by the sampling procedure. 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In the same way,&hellip;&nbsp;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.azti.es\/rim\/rim191-estudios-troficos-de-pequenos-peces-pelagicos-en-el-golfo-de-bizkaia-aspectos-metodologicos\/\" \/>\n<meta property=\"article:published_time\" content=\"2011-12-20T23:00:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-11-24T08:45:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.azti.es\/rim\/wp-content\/uploads\/2013\/05\/rim19_1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"259\" \/>\n\t<meta property=\"og:image:height\" content=\"194\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Irantzu Zubiaur\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Irantzu Zubiaur\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta 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