{"id":7100,"date":"2026-03-27T15:30:41","date_gmt":"2026-03-27T15:30:41","guid":{"rendered":"https:\/\/www.lovesail.com\/ls-news\/?p=7100"},"modified":"2026-03-27T15:47:23","modified_gmt":"2026-03-27T15:47:23","slug":"blistering-barnacles","status":"publish","type":"post","link":"https:\/\/www.lovesail.com\/ls-news\/blistering-barnacles\/","title":{"rendered":"Blistering Barnacles!"},"content":{"rendered":"<h2>Ten Amazing Facts About Barnacles (That Sailors Should Know).<\/h2>\n<p data-start=\"274\" data-end=\"672\"><strong data-start=\"274\" data-end=\"299\">Blistering Barnacles!<\/strong> The bane of many a seafarer, the humble barnacle may be small, but its impact is anything but. <!--more-->By attaching themselves stubbornly to hulls, they increase drag, reduce fuel efficiency, and keep sailors busy with endless scraping and antifouling. In fact, this clingy crustacean is at the heart of a global biofouling problem worth an estimated <strong data-start=\"643\" data-end=\"659\">$120 billion<\/strong> each year.<\/p>\n<p data-start=\"674\" data-end=\"815\">Yet behind the nuisance lies a surprisingly fascinating creature. Here are ten unusual facts about this tenacious crustacean that every sailor should know.<\/p>\n<hr \/>\n<h2>Barnacle Basics<\/h2>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>There are over 1400 species of barnacles around the world.\u00a0 Classed as a crustacean they are related to crabs and lobsters.\u00a0 The barnacle that commonly inhabits the bottom of yachts is the acorn barnacle.<\/li>\n<li>Acorn barnacles attach themselves to rock, sealife and boats by secreting a quick-setting cement.\u00a0 This cement is one of the strongest natural glues science has yet discovered.\u00a0 It has a tensile strength of 5,000 pounds per square inch and an adhesive strength of 22-60 pounds per square inch.\u00a0 This is necessary as they like to inhabit intertidal zones where there is a lot of water movement.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>Barnacle Biology<\/h2>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Barnacles have a life expectancy of between 8 and 20 years.\u00a0 Their main predators are the whelk and, of course, the pressure washer!<\/li>\n<li>The acorn barnacle&#8217;s shell is made up of six calcium plates surrounding the barnacle in a circle.\u00a0 Then there are four plates that act as doors and slide across the top of the barnacle to protect the barnacle from moisture loss and predators.<\/li>\n<li>Barnacles do grow the more they eat.\u00a0 It is not known how they enlarge their shell. Most probably they use a chemical to dissolve the inner layers whilst new layers are added to the outer shell.<\/li>\n<li>Did you know barnacles are hermaphrodites having both male and female reproductive organs? However, they must cross-fertilise to produce offspring.\u00a0 They have a long, retractable tube that can reach eight times their body length.\u00a0 \u00a0This is the longest reproductive organ length relative to body size in the animal kingdom.\u00a0 At the end of a mating season, this organ dissolves and a new one is grown for the next season.<\/li>\n<li>Barnacles have no heart.\u00a0 They do, however, have a sinus that performs a similar function to muscles pushing blood through.<\/li>\n<li>Barnacles have no gills.\u00a0 Instead, they absorb oxygen through their legs or cirri which wave around in the water.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h2>From hull to haute cuisine<\/h2>\n<ul>\n<li>While most sailors curse barnacles for slowing their boats, in Spain and Portugal the <strong data-start=\"501\" data-end=\"564\">goose barnacle has made the leap from hull to haute cuisine<\/strong>. Known locally as <em data-start=\"583\" data-end=\"593\">percebes<\/em>, these prized crustaceans cling to wave-battered Atlantic rocks and are notoriously dangerous to harvest. That risk, combined with their unique flavour, pushes prices up to \u20ac200 per kilo. They may not win beauty contests, but on Galician menus they\u2019re considered a salty delicacy &#8211; proof that one sailor\u2019s bane is another diner\u2019s banquet.<\/li>\n<\/ul>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9606\" data-permalink=\"https:\/\/www.lovesail.com\/ls-news\/blistering-barnacles\/goosebarnacles\/#main\" data-orig-file=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?fit=940%2C470&amp;ssl=1\" data-orig-size=\"940,470\" 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;1&quot;}\" data-image-title=\"goosebarnacles\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?fit=940%2C470&amp;ssl=1\" class=\"aligncenter size-full wp-image-9606\" src=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?resize=940%2C470&#038;ssl=1\" alt=\"goose barnacle\" width=\"940\" height=\"470\" srcset=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?w=940&amp;ssl=1 940w, https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?resize=720%2C360&amp;ssl=1 720w, https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?resize=680%2C340&amp;ssl=1 680w, https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?resize=300%2C150&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2020\/07\/goosebarnacles-e1756828780431.jpg?resize=768%2C384&amp;ssl=1 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/p>\n<h2>Barnacles in Culture<\/h2>\n<ul>\n<li>American poet A E Stallings wrote a poem about a barnacle:<\/li>\n<\/ul>\n<p style=\"text-align: center;\">The Barnacle<\/p>\n<p style=\"text-align: center;\">The barnacle is rather odd\u2009-<br \/>\nIt\u2019s not related to the clam<br \/>\nOr limpet. It\u2019s an arthropod,<br \/>\nThough one that doesn\u2019t give a damn.<\/p>\n<p style=\"text-align: center;\">Cousin to the crab and shrimp,<br \/>\nWhen larval, it can twitch and swim,<br \/>\nAnd make decisions- tiny imp<br \/>\nThat flits according to its whim.<\/p>\n<p style=\"text-align: center;\">Once grown, with nothing more to prove<br \/>\nIt hunkers down, and will remain<br \/>\nStuck fast. And once it does not move,<br \/>\nHas no more purpose for a brain.<\/p>\n<p style=\"text-align: center;\">Its one boast is, it will not budge,<br \/>\nCemented where it chanced to sink,<br \/>\nSclerotic, stubborn as a grudge.<br \/>\nSettled, it does not need to think.<\/p>\n<p>&nbsp;<\/p>\n<p>So the next time you\u2019re cursing barnacles on your hull, remember there\u2019s more to them than stubborn glue and drag. From billion-dollar industries to Galician delicacies, these little crustaceans punch well above their weight. No wonder Captain Haddock made \u201cBlistering Barnacles!\u201d his trademark outburst &#8211; few things in sailing life are quite so sticky, stubborn, and unforgettable.<\/p>\n<p>Related articles:\u00a0 <a href=\"https:\/\/www.lovesail.com\/ls-news\/2017\/02\/biofouling\/\">Biofouling<\/a><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9493\" data-permalink=\"https:\/\/www.lovesail.com\/ls-news\/sailing-word-search\/new-logo-2025-main\/#main\" data-orig-file=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2025\/05\/new-logo-2025-Main.jpg?fit=300%2C70&amp;ssl=1\" data-orig-size=\"300,70\" 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=\"new logo 2025 Main\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2025\/05\/new-logo-2025-Main.jpg?fit=300%2C70&amp;ssl=1\" class=\"aligncenter size-full wp-image-9493\" src=\"https:\/\/i0.wp.com\/www.lovesail.com\/ls-news\/wp-content\/uploads\/2025\/05\/new-logo-2025-Main.jpg?resize=300%2C70&#038;ssl=1\" alt=\"lovesail\" width=\"300\" height=\"70\" \/><\/p>\n<p><strong data-start=\"154\" data-end=\"206\">Unlike barnacles, you don\u2019t have to go it alone.<\/strong> At <a href=\"https:\/\/www.lovesail.com\/\">Lovesail.com<\/a>, we bring together a global community of single sailors and sailing friends. Join today to meet like-minded men and women for dates, meetups, and crewing opportunities &#8211; and find connections that stick (in the best possible way).<\/p>\n<p>Barnacle image courtesy of Kenn Kiser from <a href=\"https:\/\/freeimages.com\/\">FreeImages<\/a><br \/>\nGoose barnacle image courtesy of <a href=\"https:\/\/tasteporto.com\/goose-barnacles-or-what-are-those-funny-looking-things-at-the-fish-stalls\/\">Taste Porto<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ten Amazing Facts About Barnacles (That Sailors Should Know). Blistering Barnacles! The bane of many a seafarer, the humble barnacle may be small, but its impact is anything but.<\/p>\n","protected":false},"author":2,"featured_media":7104,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":""},"categories":[8],"tags":[863,6369,6367,6721,6368,6366],"class_list":["post-7100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-barnacles","tag-bioflouling","tag-blistering-barnacles","tag-captain-haddock","tag-crustacean","tag-goose-barnacles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Blistering Barnacles! 10 Amazing Facts About Barnacles for Sailors<\/title>\n<meta name=\"description\" content=\"Blistering Barnacles! 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