{"id":701,"date":"2026-03-09T09:54:05","date_gmt":"2026-03-09T09:54:05","guid":{"rendered":"https:\/\/www.gov.fk\/fisheries\/?page_id=701"},"modified":"2026-03-09T09:56:30","modified_gmt":"2026-03-09T09:56:30","slug":"age-and-growth-and-reproductive-biology-of-butterfish-stromateus-brasiliensis","status":"publish","type":"page","link":"https:\/\/www.gov.fk\/fisheries\/research\/age-and-growth-and-reproductive-biology-of-butterfish-stromateus-brasiliensis\/","title":{"rendered":"Age and growth, and reproductive biology of butterfish (Stromateus brasiliensis)"},"content":{"rendered":"\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/www.gov.fk\/fisheries\/\">Home<\/a><\/span> \u00bb <span><a href=\"https:\/\/www.gov.fk\/fisheries\/research\/\">Research<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">Age and growth, and reproductive biology of butterfish (Stromateus brasiliensis)<\/span><\/span><\/div><\/div>\n\n\n\n<div style=\"height:4vh\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<h1 class=\"wp-block-post-title\">Age and growth, and reproductive biology of butterfish (Stromateus brasiliensis)<\/h1>\n\n\n<div style=\"height:1vh\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group has-global-padding is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-7f51fafc wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-bd1cc74a wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<h3 class=\"wp-block-heading has-text-align-left\">Scientist<\/h3>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Jorge E. Ramos<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alexander Arkhipkin<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"wp-block-paragraph\">Butterfish\u00a0<em>Stromateus brasiliensis\u00a0<\/em>is a subtropical species that occurs from southern Brazil to Tierra del Fuego. However, it has been caught and in greater numbers around the Falkland Islands over the last few years. Butterfish is not considered a commercially important species in Falkland Islands waters despite some fishing vessels already keep it as part of their commercial catch. An increase in abundance of this species in the Falkland Islands fishing areas may create a window of opportunity for its commercialization. In addition, the interaction of butterfish with local species and other species of commercial importance should be examined to understand the ecological implications of its presence and increasing abundance in the local marine ecosystem. Examination of butterfish life history characteristics and population dynamics beyond its common range of distribution, i.e. Falkland Islands waters, is thus necessary. For these reasons, age and growth, and reproductive biology of butterfish are being assessed, which is also crucial information for the management of this potential fishery resource.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class=\"wpcp-wp-lightbox-host wpcp-advanced-image-lightbox-icon-hover\"><a class=\"wpcp-wp-lightbox-image-link\" href=\"https:\/\/www.gov.fk\/fisheries\/wp-content\/uploads\/sites\/27\/2026\/03\/Butterfish.png\" data-wpcp-wp-lb-image=\"1\"><img loading=\"lazy\" decoding=\"async\" width=\"295\" height=\"194\" src=\"https:\/\/www.gov.fk\/fisheries\/wp-content\/uploads\/sites\/27\/2026\/03\/Butterfish.png\" alt=\"\" class=\"wp-image-703\"\/><\/a><a href=\"https:\/\/www.gov.fk\/fisheries\/wp-content\/uploads\/sites\/27\/2026\/03\/Butterfish.png\" data-fancybox=\"wpcp-wp-img-703\" class=\"wpcp-lightbox-trigger wpcp-advanced-image-lightbox-icon wpcp-position-top-right wpcp-advanced-image-lightbox-icon-hover wpcp-global-lightbox-icon wpcp-lightbox-icon--global wpcp-lb-icon-style-default\" data-wpcp-lb-icon-source=\"global\" aria-label=\"Open image in lightbox\" data-thumb-src=\"https:\/\/www.gov.fk\/fisheries\/wp-content\/uploads\/sites\/27\/2026\/03\/Butterfish.png\" data-wpcp-lb-single=\"1\"><span class=\"wpcp-icon-container\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\"><path d=\"M17.6585 16.025L14.2437 12.6198C15.1716 11.3338 15.6121 9.7613 15.4871 8.1819C15.362 6.60251 14.6795 5.11847 13.5607 3.99351C12.936 3.36206 12.1916 2.86066 11.3709 2.51845C10.5502 2.17623 9.66952 2 8.77995 2C7.89039 2 7.00969 2.17623 6.18899 2.51845C5.36829 2.86066 4.62395 3.36206 3.99919 3.99351C3.36594 4.61649 2.86312 5.35871 2.51992 6.17708C2.17673 6.99545 2 7.87365 2 8.76068C2 9.64772 2.17673 10.5259 2.51992 11.3443C2.86312 12.1627 3.36594 12.9049 3.99919 13.5279C5.11957 14.6901 6.62279 15.4103 8.23285 15.5562C9.84291 15.7022 11.4517 15.2641 12.7639 14.3224L16.1788 17.7275C16.3849 17.9034 16.6473 18 16.9186 18C17.1899 18 17.4523 17.9034 17.6585 17.7275C18.1138 17.16 18.1138 16.5925 17.6585 16.025ZM5.59278 12.0523C5.16258 11.6298 4.82094 11.1263 4.58774 10.5709C4.35455 10.0156 4.23446 9.41951 4.23446 8.81744C4.23446 8.21536 4.35455 7.6193 4.58774 7.06394C4.82094 6.50859 5.16258 6.00503 5.59278 5.58257C6.01644 5.15359 6.52144 4.81292 7.07838 4.58039C7.63532 4.34786 8.23308 4.22811 8.83687 4.22811C9.44066 4.22811 10.0384 4.34786 10.5954 4.58039C11.1523 4.81292 11.6573 5.15359 12.081 5.58257C12.5112 6.00503 12.8528 6.50859 13.086 7.06394C13.3192 7.6193 13.4393 8.21536 13.4393 8.81744C13.4393 9.41951 13.3192 10.0156 13.086 10.5709C12.8528 11.1263 12.5112 11.6298 12.081 12.0523C11.6573 12.4813 11.1523 12.822 10.5954 13.0545C10.0384 13.287 9.44066 13.4068 8.83687 13.4068C8.23308 13.4068 7.63532 13.287 7.07838 13.0545C6.52144 12.822 6.01644 12.4813 5.59278 12.0523Z\" \/><\/svg><\/span><\/a><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">This project adheres to the development and sustainable management of the Falkland Islands fisheries resources.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:4vh\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\" style=\"background-color:#f9fafb;padding-top:10vh;padding-bottom:10vh\">\n<h2 class=\"wp-block-heading\">For more information, please contact <br>the Fisheries Department<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You\u2019ll find our office hours, location, and full contact details below.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.gov.fk\/fisheries\/contact-us\/\">Contact us<\/a><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Scientist Jorge E. Ramos Alexander Arkhipkin Butterfish\u00a0Stromateus brasiliensis\u00a0is a subtropical species that occurs from southern Brazil to Tierra del Fuego&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":687,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-701","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Butterfish Age &amp; Reproductive Biology Research - Falkland Islands<\/title>\n<meta name=\"description\" content=\"Research project studying the age, growth and reproductive biology of butterfish (Stromateus brasiliensis) in Falkland Islands waters.\" \/>\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.gov.fk\/fisheries\/research\/age-and-growth-and-reproductive-biology-of-butterfish-stromateus-brasiliensis\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Butterfish Age &amp; Reproductive Biology Research - 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