{"id":753,"date":"2024-02-04T06:32:16","date_gmt":"2024-02-04T06:32:16","guid":{"rendered":"https:\/\/knowledge.udafoundation.in\/?p=753"},"modified":"2025-01-24T09:56:36","modified_gmt":"2025-01-24T09:56:36","slug":"mapping-snapping-shrimp-noise-in-the-indian-ocean-region","status":"publish","type":"post","link":"https:\/\/old-knowledge.udafoundation.in\/index.php\/2024\/02\/04\/mapping-snapping-shrimp-noise-in-the-indian-ocean-region\/","title":{"rendered":"Snapping Shrimps in the Indian Ocean Region: Mapping of Hotspots and effects\/ application of the Ambient Noise"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"753\" class=\"elementor elementor-753\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f2f8c3 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-parent\" data-id=\"3f2f8c3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1780a3c e-grid-align-left elementor-shape-rounded elementor-grid-0 elementor-widget elementor-widget-social-icons\" data-id=\"1780a3c\" data-element_type=\"widget\" data-widget_type=\"social-icons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-social-icons-wrapper elementor-grid\">\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-facebook elementor-repeater-item-d20a793\" href=\"https:\/\/www.facebook.com\/mrcpune\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Facebook<\/span>\n\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-facebook\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256C504 119 393 8 256 8S8 119 8 256c0 123.78 90.69 226.38 209.25 245V327.69h-63V256h63v-54.64c0-62.15 37-96.48 93.67-96.48 27.14 0 55.52 4.84 55.52 4.84v61h-31.28c-30.8 0-40.41 19.12-40.41 38.73V256h68.78l-11 71.69h-57.78V501C413.31 482.38 504 379.78 504 256z\"><\/path><\/svg>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-twitter elementor-repeater-item-ad769e2\" href=\"https:\/\/twitter.com\/mrcpune\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Twitter<\/span>\n\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-twitter\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z\"><\/path><\/svg>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-youtube elementor-repeater-item-3747509\" href=\"https:\/\/www.youtube.com\/channel\/UCOpZWjsT6LZqfIY68i1Bnlw\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Youtube<\/span>\n\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-youtube\" viewBox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M549.655 124.083c-6.281-23.65-24.787-42.276-48.284-48.597C458.781 64 288 64 288 64S117.22 64 74.629 75.486c-23.497 6.322-42.003 24.947-48.284 48.597-11.412 42.867-11.412 132.305-11.412 132.305s0 89.438 11.412 132.305c6.281 23.65 24.787 41.5 48.284 47.821C117.22 448 288 448 288 448s170.78 0 213.371-11.486c23.497-6.321 42.003-24.171 48.284-47.821 11.412-42.867 11.412-132.305 11.412-132.305s0-89.438-11.412-132.305zm-317.51 213.508V175.185l142.739 81.205-142.739 81.201z\"><\/path><\/svg>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<span class=\"elementor-grid-item\">\n\t\t\t\t\t<a class=\"elementor-icon elementor-social-icon elementor-social-icon-linkedin elementor-repeater-item-7300392\" href=\"https:\/\/www.linkedin.com\/company\/the-maritime-research-center\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-screen-only\">Linkedin<\/span>\n\t\t\t\t\t\t<svg class=\"e-font-icon-svg e-fab-linkedin\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\"><\/path><\/svg>\t\t\t\t\t<\/a>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3df1ba2 elementor-widget elementor-widget-button\" data-id=\"3df1ba2\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/drive.google.com\/file\/d\/1cX9Df6ytb1pfj-zmMuh5titAsD3xUKKS\/view\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">View Report <\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb8a792 elementor-widget elementor-widget-text-editor\" data-id=\"bb8a792\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-167aaae grve-elementor-align-left elementor-widget elementor-widget-impeka_title\" data-id=\"167aaae\" data-element_type=\"widget\" data-widget_type=\"impeka_title.default\"><div class=\"elementor-widget-container\"><div class=\"elementor-element elementor-element-7e7b42d1 grve-elementor-align-left elementor-widget elementor-widget-impeka_title\" data-id=\"7e7b42d1\" data-element_type=\"widget\" data-widget_type=\"impeka_title.default\"><div class=\"elementor-widget-container\"><h5 class=\"grve-element grve-title grve-h5\">Overview<\/h5><\/div><\/div><div class=\"elementor-element elementor-element-3c60c96f elementor-widget elementor-widget-text-editor\" data-id=\"3c60c96f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><p>The article discusses the use of snapping shrimp noise in the Indian Ocean Region (IOR) to improve underwater acoustic systems. Snapping shrimp produce loud snaps that can disrupt underwater communication. The characteristics of snapping shrimp, analyzes the soundscape of the IOR, and examines the spatial and temporal behaviour of snapping shrimp noise. The potential benefits and challenges associated with utilizing snapping shrimp noise for different applications, including signal detection, acoustic imaging, and environmental monitoring. It also highlights the challenges and opportunities in utilizing snapping shrimp noise for signal detection, acoustic imaging, and environmental monitoring. The article emphasizes the need for further research and comprehensive studies to harness the potential of snapping shrimp noise in the IOR.<\/p><\/div><\/div><div class=\"elementor-element elementor-element-2b67aca grve-elementor-align-left elementor-widget elementor-widget-impeka_title\" data-id=\"2b67aca\" data-element_type=\"widget\" data-widget_type=\"impeka_title.default\"><div class=\"elementor-widget-container\"><h5 class=\"grve-element grve-title grve-h5\"><strong>Key highlights<\/strong><\/h5><\/div><\/div><div class=\"elementor-element elementor-element-5b21e779 elementor-widget elementor-widget-text-editor\" data-id=\"5b21e779\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><ul><li>Snapping shrimp colonies are found in warm littoral waters in tropical and sub-tropical zones worldwide, including the Indian Ocean Region (IOR).<\/li><li>Snapping shrimp produce loud snaps, with peak-to-peak source levels reaching up to 180 dB re 1\u03bcPa at 1m, which is louder than a jet engine.<\/li><li>The snaps are broadband signals dominant in the frequency range of 2 kHz to 250 kHz, potentially extending beyond 250 kHz.<\/li><li>The noise generated by snapping shrimp colonies interferes with underwater acoustic communication for humans and marine species, impacting underwater systems.<\/li><li>Identifying actual shrimp hotspots in the IOR based on habitat features is crucial for creating ambient noise maps and optimizing acoustic systems.<\/li><li>Snapping shrimp actively colonize corals, rocks, and sponges, primarily to hide from prey and perform surprise attacks.<\/li><li>Ambient noise mapping involves considering other noise sources like water motion, wind noise, anthropogenic noise, and marine bioacoustics.<\/li><\/ul><\/div><\/div><div class=\"elementor-element elementor-element-8e27263 grve-elementor-align-left elementor-widget elementor-widget-impeka_title\" data-id=\"8e27263\" data-element_type=\"widget\" data-widget_type=\"impeka_title.default\"><div class=\"elementor-widget-container\"><h5 class=\"grve-element grve-title grve-h5\"><strong>Key Challenges<\/strong><\/h5><\/div><\/div><div class=\"elementor-element elementor-element-51f35038 elementor-widget elementor-widget-text-editor\" data-id=\"51f35038\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><ul><li>Gathering sufficient and reliable data on snapping shrimp noise requires extensive fieldwork, deploying hydrophones, and processing large volumes of acoustic recordings.<\/li><li>Developing accurate models that capture the complex behaviour and characteristics of snapping shrimp noise is a challenge.<\/li><li>External factors such as weather conditions, sea state, and anthropogenic noise can influence the ambient noise levels and make it challenging to distinguish shrimp noise from other sources.<\/li><li>We still have a long way to go for conducting experiments to verify all possible hotspots. After we locate possible hotspots, we\u2019ll need indigenous effort to study our marine bioacoustics environment. Better understanding of the sound quality will be obtained through such efforts.<\/li><li>In all the studies, variation (based on location, country) is observed in noise, habitat, spatial temporal distribution and the soundscape. We can use them as motivation, but not as a fixed standard in studying shrimp noise. This again calls for further research into the high frequency soundscape of shallow waters that contain shrimp colonies.<\/li><li>Lot of research is being done in nearby waters in the Indian Ocean itself; we need our own indigenous capacity to stand in par with them.<\/li><li>Identifying the accurate origin of a single snap is a difficult process, there are procedures to aid this but developing better techniques would ease our understanding of clustering of colonies and will also help in studying seabed features better.<\/li><\/ul><\/div><\/div><div class=\"elementor-element elementor-element-3b06014d grve-elementor-align-left elementor-widget elementor-widget-impeka_title\" data-id=\"3b06014d\" data-element_type=\"widget\" data-widget_type=\"impeka_title.default\"><div class=\"elementor-widget-container\"><h5 class=\"grve-element grve-title grve-h5\"><strong>Major Opportunities<\/strong><\/h5><\/div><\/div><div class=\"elementor-element elementor-element-70a3faa8 elementor-widget elementor-widget-text-editor\" data-id=\"70a3faa8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\"><div class=\"elementor-widget-container\"><ul><li>Characterizing the noise using models like \u03b1SGN(m) allows for better signal detection and analysis. This can lead to advancements in underwater acoustic research and enhance our understanding of marine environments.<\/li><li>Snapping shrimp\u2019s high-frequency noise can be used for acoustic-daylight imaging, enabling the creation of moving color pictures without the need for sonar. This technique can be valuable for underwater surveillance, mapping submerged objects, and monitoring marine ecosystems.<\/li><li>Passive sensing techniques utilizing snapping shrimp noise can be employed to determine the range and localization of underwater sound sources. This approach can aid in understanding underwater sea forms and contribute to passive monitoring systems.<\/li><li>Snapping shrimp noise can be utilized for detecting the presence and depth of Autonomous Underwater Vehicles (AUVs) without the need for active transmissions.<\/li><li>By studying the marine biology of the IOR, we can apply similar models and techniques for impulsive animal noise.<\/li><\/ul><\/div><\/div><div class=\"elementor-element elementor-element-76418c3f grve-elementor-align-center elementor-widget elementor-widget-impeka_quote\" data-id=\"76418c3f\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;none&quot;}\" data-widget_type=\"impeka_quote.default\"><div class=\"elementor-widget-container\"><blockquote class=\"grve-element grve-quote-element grve-animated-item grve-text-primary-1 grve-animating\" data-animation=\"fade-in-up\" data-delay=\"0\" data-duration=\"normal\"><p>&#8220;Creating proper ambient noise maps of the Snapping Shrimp Noise requires us to study the entire soundscape of the frequency range in which this noise is significant and identify other sources of noise that are operational in this range.&#8221;<\/p><\/blockquote><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e317dd wpr-author-box-arrange-vertical elementor-widget elementor-widget-wpr-author-box\" data-id=\"6e317dd\" data-element_type=\"widget\" data-widget_type=\"wpr-author-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"wpr-author-box\"><div class=\"wpr-author-box-image\"><img alt='' src='https:\/\/secure.gravatar.com\/avatar\/a269a1fb8943d3042011806fd6675381?s=264&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/a269a1fb8943d3042011806fd6675381?s=528&#038;d=mm&#038;r=g 2x' class='avatar avatar-264 photo' height='264' width='264' \/><\/div><div class=\"wpr-author-box-text\"><h3 class=\"wpr-author-box-title\"><a href=\"https:\/\/old-knowledge.udafoundation.in\/index.php\/author\/shlok\/\" target=\"_self\">Aakanksha Bharadwaj, Research Intern, MRC<\/a><\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>The article discusses the use of snapping shrimp noise in the Indian Ocean Region (IOR) to improve underwater acoustic systems. Snapping shrimp produce loud snaps that can disrupt underwater communication. The characteristics of snapping shrimp, analyzes the&#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"om_disable_all_campaigns":false,"tessera_post_format_link":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1,89],"tags":[102],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/posts\/753"}],"collection":[{"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/comments?post=753"}],"version-history":[{"count":20,"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/posts\/753\/revisions"}],"predecessor-version":[{"id":18201,"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/posts\/753\/revisions\/18201"}],"wp:attachment":[{"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/media?parent=753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/categories?post=753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/old-knowledge.udafoundation.in\/index.php\/wp-json\/wp\/v2\/tags?post=753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}