{"id":4154,"date":"2024-10-15T13:36:39","date_gmt":"2024-10-15T12:36:39","guid":{"rendered":"https:\/\/www.sousateuszii.org\/?p=4154"},"modified":"2024-10-16T10:03:56","modified_gmt":"2024-10-16T09:03:56","slug":"back-on-the-beach-and-in-the-boat-studying-atlantic-humpback-dolphins-in-the-conkouati-douli-national-park-congo","status":"publish","type":"post","link":"https:\/\/www.sousateuszii.org\/fr\/2024\/10\/15\/back-on-the-beach-and-in-the-boat-studying-atlantic-humpback-dolphins-in-the-conkouati-douli-national-park-congo\/","title":{"rendered":"De retour sur la plage et dans le bateau ! \u00c9tude des dauphins \u00e0 bosse de l’Atlantique dans le parc national de Conkouati-Douli, au Congo"},"content":{"rendered":"
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\u00c9quipe de suivi du dauphin \u00e0 bosse sur la plage compos\u00e9e de Ricky et Exercice et Alice ainsi que des deux \u00e9tudiants de Master ; Prince et Cline.<\/em><\/span><\/p><\/div>\n

Le <\/span>P<\/span>arc<\/span> National<\/span> de <\/span>Conkouati-Douli<\/span> (PNCD) <\/span>g\u00e9r\u00e9 par <\/span>l\u2019association<\/span> No\u00e9 <\/span>en R\u00e9publique du Congo, \u00e0 la fronti\u00e8re avec le <\/span>P<\/span>arc<\/span> national de <\/span>Mayumba au Gabon, <\/span>est une <\/span>A<\/span>ire <\/span>P<\/span>rot\u00e9g\u00e9e <\/span>qui combine des zones terrestres et maritimes<\/span>. Le PNCD <\/span>a r\u00e9cemment entrepris de nouvelles <\/span>\u00e9tudes li\u00e9es au <\/span>D<\/span>auphin \u00e0 <\/span>B<\/span>osse de l\u2019Atlantique<\/span> (<\/span>Sousa teuszii<\/span>)<\/span>.<\/span> Ce <\/span>travail<\/span> vise \u00e0<\/span> r\u00e9colter des donn\u00e9es <\/span>concernant <\/span>la<\/span> distribution et <\/span>l\u2019<\/span>abondance relative<\/span> de l\u2019esp\u00e8ce <\/span>au sein du Parc<\/span>,<\/span> afin de mettre en place <\/span>des syst\u00e8mes de surveillance<\/span> pour<\/span> la protection et la conservation de <\/span>cette <\/span>esp\u00e8ce<\/span> en danger critique d\u2019extinction<\/span>.<\/span><\/p>\n

D<\/span>ans les eaux congolaises<\/span>, cette esp\u00e8ce<\/span> n\u2019a pas <\/span>b\u00e9n\u00e9fici\u00e9 d\u2019un suivi r\u00e9gulier <\/span>apr\u00e8s l\u2019arr\u00eat <\/span>d<\/span>\u2019\u00e9tudes <\/span>men\u00e9es <\/span>dans les ann\u00e9es<\/span>\u00a0<\/span>201<\/span>5 par Tim<\/span>othy<\/span> Collins<\/span>1<\/span><\/sup>. En 2024, ces efforts ont <\/span>\u00e9t\u00e9 relanc\u00e9s <\/span>sous la <\/span>supervision<\/span> d<\/span>u nouveau <\/span>responsable<\/span> du <\/span>D<\/span>\u00e9partement <\/span>C<\/span>onservation <\/span>du PNCD<\/span>. <\/span>D\u2019abord<\/span>, <\/span>via <\/span>la mise en place de <\/span>suivi par <\/span>transect<\/span>s<\/span> le long de la pla<\/span>g<\/span>e <\/span>(fig.1) <\/span>mais \u00e9galement <\/span>\u00e0 travers<\/span> la surveillance par bateau<\/span> (fig.2)<\/span>.<\/span> Par la suite,<\/span> le <\/span>P<\/span>arc souhaite \u00e9tudier la possibilit\u00e9 de suivre ces animaux <\/span>\u00e0 travers l\u2019utilisation de drones.<\/span><\/p>\n

L<\/span>es patrouilles d\u2019observation ont permis de confirmer la pr\u00e9sence de<\/span> quatre\u00a0dauphins \u00e0 Bosse<\/span> le 02\/07\/2024 <\/span>\u00e0 <\/span>11 h 09<\/span>\u00a0<\/span>et <\/span>1<\/span> le 14\/07\/2024<\/span> \u00e0 12 h 11<\/span>. <\/span>Au total, cinq individus ont<\/span> \u00e9t\u00e9 observ\u00e9s<\/span> sur la p\u00e9riode de juin \u00e0 septembre 2024.<\/span><\/p>\n

 <\/p>\n

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\u00c9quipe de suivi du dauphin \u00e0 bosse en bateau compos\u00e9e de G\u00e9d\u00e9on, Christain, Mike, Evrard, Alainde et Yorick.<\/em><\/p><\/div>\n

D\u2019un autre c\u00f4t\u00e9, <\/span>deux<\/span> autres dauphins <\/span>ont \u00e9t\u00e9 retrouv\u00e9s dans des filets de p\u00eacheurs, <\/span>les prises accessoires <\/span>caract\u00e9risant<\/span> l<\/span>eur <\/span>premi\u00e8re forme de mortalit\u00e92<\/sup><\/span>. Une de ces prises a pu \u00eatre document\u00e9e <\/span>le 5 juin 2024 <\/span>et<\/span> t\u00e9moigne <\/span>malheureusement <\/span>du d\u00e9c\u00e8s de l\u2019animal<\/span> dans les filets (<\/span>fig.<\/span>3<\/span>)<\/span>. <\/span>En revanche<\/span>, <\/span>dans la soir\u00e9e du<\/span>\u00a0<\/span>14\/07\/2024,<\/span>\u00a0un<\/span> dauphin <\/span>a<\/span> pu \u00eatre lib\u00e9r\u00e9 des <\/span>engins de p\u00eache<\/span>, <\/span>gr\u00e2ce \u00e0 l\u2019intervention de deux \u00e9co-moniteurs marins du PNCD,<\/span> R<\/span>i<\/span>cky et Exercice<\/span>. N<\/span>\u00e9anmoins<\/span>,<\/span> aucune photo n\u2019a pu \u00eatre prise lors de la lib\u00e9ration.<\/span> Ces <\/span>incidents soulignent <\/span>l\u2019importance<\/span> de <\/span>mettre en place rapidement des mesures<\/span> pour limiter <\/span>l<\/span>es interactions p\u00eacheurs<\/span>-animal<\/span>.<\/span><\/p>\n

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Sousa Teuszii <\/span>retrouv\u00e9 <\/span>mort dans les filets de p\u00eache <\/span>dans le village de <\/span>Mvandji<\/span> dans le PNCD le 05\/06\/2024.<\/span><\/em><\/p><\/div>\n

Ces donn\u00e9es ont \u00e9t\u00e9 partag\u00e9es au CCAHD et les travaux vont \u00eatre poursuivis avec notamment de nouvelles collaboration<\/span>s<\/span> en cours entre l\u2019association No\u00e9 du Parc <\/span>national de <\/span>Conkouati-Douli<\/span>, la <\/span>commission internationale des baleines<\/span><\/a> (IWC)<\/span> et le <\/span>Con<\/span>sortium for the Conservation of the Atlantic <\/span>Humpback<\/span> Dolphin<\/span> (<\/span>CC<\/span>AHD<\/span>)<\/span>. <\/span><\/p>\n

Restez \u00e0 l’\u00e9coute pour plus de nouvelles sur cette collaboration !<\/span><\/p>\n

\u00a0<\/span><\/p>\n

\u00a0<\/span><\/p>\n

_________
\n1<\/span>Collins, T. (2015). Re-assessment of the Conservation Status of the Atlantic Humpback Dolphin, <\/span>Sousa teuszii<\/span>(K\u00fckenthal, 1892), Using the IUCN Red List Criteria. Advances in marine biology, 72, 47<\/span>\u2011<\/span>77. https:\/\/doi.org\/10.1016\/bs.amb.2015.09.001<\/span><\/a><\/span><\/p>\n

2<\/span>Weir, C. R., G. Minton, and T. J. Q. Collins. <\/span>(<\/span>2021<\/span>)<\/span>. Conservation of Africa’s Most Imperiled Cetacean, the Atlantic Humpback Dolphin (<\/span>Sousa teuszii<\/span>), The Encyclopedia of Conservation: Reference Module in Earth Systems and Environmental Sciences. Elsevier. p. 1-12.<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Le Parc National de Conkouati-Douli (PNCD) g\u00e9r\u00e9 par l\u2019association No\u00e9 en R\u00e9publique du Congo, \u00e0 la fronti\u00e8re avec le Parc national de Mayumba au Gabon, est une Aire Prot\u00e9g\u00e9e qui combine des zones terrestres et maritimes. Le PNCD a r\u00e9cemment entrepris de nouvelles \u00e9tudes li\u00e9es au Dauphin \u00e0 Bosse de l\u2019Atlantique (Sousa teuszii). Ce travail […]<\/p>\n","protected":false},"author":9,"featured_media":4133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"give_campaign_id":0,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-4154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/posts\/4154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/comments?post=4154"}],"version-history":[{"count":4,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/posts\/4154\/revisions"}],"predecessor-version":[{"id":4177,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/posts\/4154\/revisions\/4177"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/media\/4133"}],"wp:attachment":[{"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/media?parent=4154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/categories?post=4154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sousateuszii.org\/fr\/wp-json\/wp\/v2\/tags?post=4154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}