{"id":36,"date":"2021-09-16T20:41:11","date_gmt":"2021-09-16T20:41:11","guid":{"rendered":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/?p=36"},"modified":"2021-09-16T20:43:45","modified_gmt":"2021-09-16T20:43:45","slug":"seasons-of-invertebrate-development","status":"publish","type":"post","link":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/2021\/09\/16\/seasons-of-invertebrate-development\/","title":{"rendered":"Seasons of invertebrate development"},"content":{"rendered":"\n<p>Marine invertebrates vary in their timing of reproduction, just like most organisms on land. Even though humans may find the temperatures in the Sound pretty cold year round, the invertebrates are sensitive to both the temperatures and the change in food availability in the water. Several species are reliably reproducing on the beach every year and I make a note of when I observe them. Many of these observations can be made without a microscope, because the egg masses of molluscs are large (those squid ones are finger-sized). The larvae themselves are in the water and must be captured with a plankton net. I still don&#8217;t have a clue about those gastropod egg masses (the jelly is water-clear, and the tiny chartreuse-colored eggs are laid in really neat, straight rows) in the last image so I will need to do a bit more reading. <em>(Ironically the bivalves we&#8217;re growing do not lay egg masses, but release their eggs and larvae freely into the water, so I don&#8217;t see those on the beach.)<\/em><\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"768\" height=\"1024\" src=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2015-e1631823982694-768x1024.jpg\" alt=\"Mud covered plastic oyster tumbler covered in small yellow snail egg cases with mud-covered snails in the foreground\" data-id=\"38\" data-full-url=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2015-e1631823982694.jpg\" data-link=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/img_2015\/\" class=\"wp-image-38\" srcset=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2015-e1631823982694-768x1024.jpg 768w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2015-e1631823982694-225x300.jpg 225w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2015-e1631823982694.jpg 900w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><figcaption class=\"blocks-gallery-item__caption\">An early spring gathering of oyster-drilling whelks<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"768\" height=\"1024\" src=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2138-768x1024.jpg\" alt=\"Barnacle covered rock with inset enlargement of the rock showing tiny dots of new barnacle juveniles\" data-id=\"39\" data-full-url=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2138.jpg\" data-link=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/img_2138\/\" class=\"wp-image-39\" srcset=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2138-768x1024.jpg 768w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2138-225x300.jpg 225w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2138.jpg 900w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><figcaption class=\"blocks-gallery-item__caption\">The spring cohort of juvenile barnacles (covering everything)<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2139-1024x768.jpg\" alt=\"beach foam and the half moon shape of a moon snail egg collar which is the same color as the mud\" data-id=\"40\" data-full-url=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2139.jpg\" data-link=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/img_2139\/\" class=\"wp-image-40\" srcset=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2139-1024x768.jpg 1024w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2139-300x225.jpg 300w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2139-768x576.jpg 768w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2139.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"blocks-gallery-item__caption\">Early summer egg cases of the moon snail<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"768\" height=\"1024\" src=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2522-e1631824205746-768x1024.jpg\" alt=\"cluster of long finger size and shape squid egg masses\" data-id=\"41\" data-full-url=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2522-e1631824205746.jpg\" data-link=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/img_2522\/\" class=\"wp-image-41\" srcset=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2522-e1631824205746-768x1024.jpg 768w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2522-e1631824205746-225x300.jpg 225w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2522-e1631824205746.jpg 900w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><figcaption class=\"blocks-gallery-item__caption\">Early August observation by the Tacoma Upward Bound students of a squid egg case washed up on the beach<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" width=\"1024\" height=\"768\" src=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2588-1024x768.jpg\" alt=\"\" data-id=\"42\" data-full-url=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2588.jpg\" data-link=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/img_2588\/\" class=\"wp-image-42\" srcset=\"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2588-1024x768.jpg 1024w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2588-300x225.jpg 300w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2588-768x576.jpg 768w, https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-content\/uploads\/sites\/437\/2021\/09\/IMG_2588.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"blocks-gallery-item__caption\">Late summer gastropod egg mass laid on the edge of bivalve shells<\/figcaption><\/figure><\/li><\/ul><figcaption class=\"blocks-gallery-caption\">Six months of eggs and juveniles on the Evergreen beach from March to September<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Marine invertebrates vary in their timing of reproduction, just like most organisms on land. Even though humans may find the temperatures in the Sound pretty cold year round, the invertebrates are sensitive to both the temperatures and the change in food availability in the water. Several species are reliably reproducing on the beach every year [&hellip;]<\/p>\n","protected":false},"author":375,"featured_media":41,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"gallery","meta":[],"categories":[5],"tags":[9,10,6,8,7],"_links":{"self":[{"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts\/36"}],"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=36"}],"version-history":[{"count":5,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts\/36\/revisions"}],"predecessor-version":[{"id":47,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/posts\/36\/revisions\/47"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/media\/41"}],"wp:attachment":[{"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/media?parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/categories?post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.evergreen.edu\/curriculumvitaelarvae\/wp-json\/wp\/v2\/tags?post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}