{"id":49,"date":"2022-01-22T11:37:47","date_gmt":"2022-01-22T11:37:47","guid":{"rendered":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/?p=49"},"modified":"2022-01-22T12:07:19","modified_gmt":"2022-01-22T12:07:19","slug":"winter-plankton-update","status":"publish","type":"post","link":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/2022\/01\/22\/winter-plankton-update\/","title":{"rendered":"Winter plankton update"},"content":{"rendered":"\n<p>It has been an interesting Winter 2021-2022:  large amounts of rain, dramatic temperature swings from winter snowy cold to unusual January high temperatures. While the large amounts of rain are typical for a La Ni\u00f1a (as opposed to El Ni\u00f1o) winter weather pattern, high temperatures are not. I happened to be out collecting zooplankton for my Marine Environments students to observe during this brief mid-month warm spell at Boston Harbor, the north end of Budd Inlet. This location has a much more marine influence than the downtown Olympia, Deschutes River-Capital Lake southern end of the Inlet, where the week before, we saw very high turbidity from the high river (and local storm drain) outflow. I was trying to keep my zooplankton expectations low based on some of the observations from previous years, so I was very pleasantly surprised that my students did indeed get to see several varieties of invertebrate larvae from my 80\u03bcm plankton samples. (I didn&#8217;t see any bivalve larvae, but I&#8217;m hoping to be able to stage some bivalve gonads in lab next month as a student exercise.) As I was towing right off of a dock with a healthy encrustation of fouling organisms, I was able to observe:<\/p>\n\n\n\n<ul><li>cnidarian planulae (probably sea anemone)<\/li><li>3 varieties of (and definitely two different species) of polychaete larvae (one trocophore and two setigers, one probably a spionid)<\/li><li>3 varieties of crustacean larvae (barnacle and one other nauplius, brachyuran crab zoea possibly <em>Hemigrapsis<\/em> sp.)<\/li><li>2 varieties of gastropod mollusc veligers (one with a slightly larger whorled shell, the other smaller and emerging from an egg capsule containing 6 embryos)<\/li><li>bryozoan cyphonautes<\/li><\/ul>\n\n\n\n<blockquote class=\"wp-block-quote\"><p>An excellent reference: <\/p><cite>Shanks, A. L. 2002. <em>An Identification Guide to the Larval Marine Invertebrates of the Pacific Northwest.<\/em> OSU Press, Corvallis. 320 p. <\/cite><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>It has been an interesting Winter 2021-2022: large amounts of rain, dramatic temperature swings from winter snowy cold to unusual January high temperatures. While the large amounts of rain are typical for a La Ni\u00f1a (as opposed to El Ni\u00f1o) winter weather pattern, high temperatures are not. I happened to be out collecting zooplankton for [&hellip;]<\/p>\n","protected":false},"author":375,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[14,13,10,16,15,8,12],"_links":{"self":[{"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts\/49"}],"collection":[{"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/users\/375"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/comments?post=49"}],"version-history":[{"count":3,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts\/49\/revisions"}],"predecessor-version":[{"id":52,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts\/49\/revisions\/52"}],"wp:attachment":[{"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/media?parent=49"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/categories?post=49"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/tags?post=49"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}