{"id":36183,"date":"2022-06-01T09:20:51","date_gmt":"2022-06-01T13:20:51","guid":{"rendered":"https:\/\/news.maryland.gov\/dnr\/?p=36183"},"modified":"2022-06-01T09:20:51","modified_gmt":"2022-06-01T13:20:51","slug":"horseshoe-crabs-begin-migration-onto-atlantic-coast","status":"publish","type":"post","link":"https:\/\/news.maryland.gov\/dnr\/2022\/06\/01\/horseshoe-crabs-begin-migration-onto-atlantic-coast\/","title":{"rendered":"Horseshoe Crabs Begin Migration onto Atlantic Coast"},"content":{"rendered":"<p style=\"text-align: center\"><i><span style=\"font-weight: 400\">Citizens Can Help Scientific Survey of Ancient Creature<\/span><\/i><\/p>\n<div style=\"width: 366px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/live.staticflickr.com\/7533\/16286000332_5d4401068c.jpg\" alt=\"Phot of horseshoe crab in the water on a beach\" width=\"356\" height=\"237\" \/><p class=\"wp-caption-text\">Maryland DNR photo<\/p><\/div>\n<p><span style=\"font-weight: 400\">The annual spawning migration of horseshoe crabs <\/span><i><span style=\"font-weight: 400\">\u2013 Limulus polyphemus \u2013<\/span><\/i><span style=\"font-weight: 400\"> is now returning to Maryland beaches. The peak of the horseshoe crab spawn depends on late spring and early summer high tides, culminating on or around each full and new moon in June. Dating back an estimated 350 million years, this yearly event along the Atlantic coast is thought to be the world&#8217;s oldest and largest wildlife migration.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Biologists from the <\/span><a href=\"https:\/\/dnr.maryland.gov\/Pages\/default.aspx\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Maryland Department of Natural Resources<\/span><\/a><span style=\"font-weight: 400\"> (DNR) monitor the returning horseshoe crab population for <\/span><a href=\"https:\/\/dnr.maryland.gov\/ccs\/Pages\/horseshoecrab-conservation.aspx\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">ecological and scientific research<\/span><\/a><span style=\"font-weight: 400\"> purposes. The department encourages the public to report any spawning activity and sightings of horseshoe crabs to DNR\u2019s <\/span><a href=\"https:\/\/maryland.maps.arcgis.com\/apps\/webappviewer\/index.html?id=391606d4a962405db2429779ff47e5d8\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Horseshoe Crab Volunteer Angler Survey<\/span><\/a><span style=\"font-weight: 400\">. <\/span><!--more--><\/p>\n<p><span style=\"font-weight: 400\">On average, one spawning female horseshoe crab will deposit 20,000 eggs into the sand.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Horseshoe crab eggs are a natural part of the diet for migratory shorebirds preparing to return to their summer nesting grounds in northern Canada. Horseshoe crab larvae are also an important food staple for juvenile Atlantic loggerhead turtles, as well as striped bass, American eel, and flounder.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">The horseshoe crab\u2019s blue, copper-based blood is critical for biomedical research \u2014 the animals are collected by specially permitted fishing operations, have blood drawn in a biomedical facility, and then are released back into the water.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Despite their menacing armor and tail, horseshoe crabs are gentle creatures that do not bite or sting. The tail is not a weapon but is used to plow the crab through the sand and muck, to act as a rudder in the water, and to right the crab when it accidentally tips over. They can only survive outside of water for a short amount of time.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Citizens Can Help Scientific Survey of Ancient Creature The annual spawning migration of horseshoe crabs \u2013 Limulus polyphemus \u2013 is now returning to Maryland beaches. The peak of the horseshoe crab spawn depends on late spring and early summer high tides, culminating on or around each full and new moon in June. Dating back an<a href=\"https:\/\/news.maryland.gov\/dnr\/2022\/06\/01\/horseshoe-crabs-begin-migration-onto-atlantic-coast\/\">&nbsp;&nbsp;Read the Rest&#8230;<\/a><\/p>\n","protected":false},"author":146,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[956,957,11,33],"tags":[4665,4933,2995,3346,2958,5285],"class_list":["post-36183","post","type-post","status-publish","format-standard","hentry","category-alert","category-appnews","category-fisheries","category-the-bay","tag-assateague-island","tag-atlantic-coastal-bays","tag-atlantic-ocean","tag-horseshoe-crab","tag-ocean-city","tag-volunteer-angler-survey"],"acf":[],"_links":{"self":[{"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/posts\/36183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/users\/146"}],"replies":[{"embeddable":true,"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/comments?post=36183"}],"version-history":[{"count":1,"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/posts\/36183\/revisions"}],"predecessor-version":[{"id":36184,"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/posts\/36183\/revisions\/36184"}],"wp:attachment":[{"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/media?parent=36183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/categories?post=36183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.maryland.gov\/dnr\/wp-json\/wp\/v2\/tags?post=36183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}