{"id":834,"date":"2021-02-25T14:06:09","date_gmt":"2021-02-25T18:06:09","guid":{"rendered":"https:\/\/www2.whoi.edu\/site\/amooney\/?p=834"},"modified":"2021-03-29T16:00:12","modified_gmt":"2021-03-29T20:00:12","slug":"squid-ocean-acidification","status":"publish","type":"post","link":"https:\/\/www2.whoi.edu\/site\/amooney\/2021\/02\/25\/squid-ocean-acidification\/","title":{"rendered":"Squid Ocean Acidification"},"content":{"rendered":"\r\n<h1>Squid Ocean Acidification<\/h1>\r\n<p>The goal of this work is to quantify how ocean acidification conditions impact squid (<i>Loligo pealeii<\/i>) embryo and paralarval development, behavior, and survival, as well as address the mechanisms that potentially induce these changes.<\/p>\r\n<p>Cephalopods are critical components of many marine ecosystems. Squid in particular are often considered key species because of their central role in trophic webs, as the primary prey of numerous top predators, and the consumer of smaller meso- and epipelagic prey.\u00a0 While ocean acidification (OA) is poised to substantially impact a diverse array of marine organisms, there is little understanding of if or how decreasing pH and higher levels of CO2\u00a0may impact squid. Effects upon squid embryos and paralarvae may be of most concern because: (i) these developmental stages and their metabolism are highly sensitive to environmental conditions, (ii) they are initiating the construction of aragonite statoliths vital to orientation and sensory biology, and (iii) their successful early life history growth, behavior and survival are critical to founding future cohorts which support ecosystem food webs and global fisheries.<\/p>\r\n<p>Our initial data indicate that high CO2\u00a0levels (2200 ppm) and low pH (7.4) induce changes in squid paralarval mantle length, development time, rate of hatching, statolith area, and statolith structure.\u00a0 Our current tests encompass current and predicted future CO2\u00a0levels (390-2200 ppm).\u00a0 We will hopefully produce effectual dose-response curves which are valuable for dynamic organisms which can occur in a range of environmental conditions.\u00a0 This upcoming work includes investigations of energy expenditures (via yolk sack size and swim velocity) and statolith mass and densities to address the potential mechanisms for changes in development, behavior and sensory physiology.\u00a0 Maintaining animals beyond hatching will allow estimates of survival potential.\u00a0 Final measurements will quantify the selectiveness of adults to lay eggs in the CO2\u00a0conditions in which effects were shown.<\/p>\r\n<p><a href=\"https:\/\/www2.whoi.edu\/site\/amooney\/wp-content\/uploads\/sites\/31\/2018\/05\/student-blog-squid-foto-2013-06-28-17-17-03.jpg\" target=\"_self\" rel=\"noopener noreferrer\"> <img loading=\"lazy\" title=\"student blog squid foto 2013-06-28-17-17-03\" src=\"https:\/\/www2.whoi.edu\/site\/amooney\/wp-content\/uploads\/sites\/31\/2018\/05\/student-blog-squid-foto-2013-06-28-17-17-03.jpg\" alt=\"student blog squid foto 2013-06-28-17-17-03\" width=\"2448\" height=\"3264\" \/> <\/a> <a href=\"https:\/\/www2.whoi.edu\/site\/amooney\/wp-content\/uploads\/sites\/31\/2018\/06\/Squid-700_360737-IMage-of-day-Oct-9-2014.jpg\" target=\"_self\" rel=\"noopener noreferrer\"> <img loading=\"lazy\" title=\"Squid-700_360737 IMage of day Oct 9 2014\" src=\"https:\/\/www2.whoi.edu\/site\/amooney\/wp-content\/uploads\/sites\/31\/2018\/06\/Squid-700_360737-IMage-of-day-Oct-9-2014.jpg\" alt=\"Squid\" width=\"700\" height=\"394\" \/> <\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>The goal of this work is to quantify how ocean acidification conditions impact squid (Loligo pealeii) embryo and paralarval development, behavior, and survival, as well as address the mechanisms that potentially induce these changes.<\/p>\n","protected":false},"author":83,"featured_media":835,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"tpl-full-width.php","format":"standard","meta":[],"categories":[15],"tags":[],"_links":{"self":[{"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/posts\/834"}],"collection":[{"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/comments?post=834"}],"version-history":[{"count":3,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/posts\/834\/revisions"}],"predecessor-version":[{"id":984,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/posts\/834\/revisions\/984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/media\/835"}],"wp:attachment":[{"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/media?parent=834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/categories?post=834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www2.whoi.edu\/site\/amooney\/wp-json\/wp\/v2\/tags?post=834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}