{"id":62769,"date":"2012-03-12T00:00:00","date_gmt":"2012-03-12T00:00:00","guid":{"rendered":"https:\/\/www.uri.edu\/news-draft\/uncategorized\/uri-researcher-uses-medical-imaging-technology-to-better-understand-fish-senses\/"},"modified":"2012-03-12T00:00:00","modified_gmt":"2012-03-12T00:00:00","slug":"uri-researcher-uses-medical-imaging-technology-to-better-understand-fish-senses","status":"publish","type":"post","link":"https:\/\/www.uri.edu\/news\/2012\/03\/uri-researcher-uses-medical-imaging-technology-to-better-understand-fish-senses\/","title":{"rendered":"溏心vlog免费B站 researcher uses medical imaging technology to better understand fish senses"},"content":{"rendered":"
\n\t\tKINGSTON, R.I. \u2013 March 12, 2012 \u2013 溏心vlog免费B站 marine biologist Jacqueline Webb gets an occasional strange look when she brings fish to the Orthopedics Research Lab at Rhode Island Hospital. While the facility\u2019s microCT scanner is typically used to study bone density and diseases like osteoporosis, it is also providing new insights into the skull structure and sensory systems of fish.<\/p>\n


\n\tA professor of biological sciences and director of the marine biology program at 溏心vlog免费B站, Webb studies the lateral line system, a sensory system in all fishes that enables them to detect water flows and vibrations in the water generated by predators and prey. The system is contained in a series of tubular canals in the skull and on the body. When flows and vibrations in the environment cause water to move in the canals, the cilia on the sensory organs inside the canals send a signal to the fish\u2019s brain.<\/p>\n


\n\t\u201cIf some fish are able to use nonvisual sensory capabilities such as the lateral line to detect prey without seeing, perhaps that makes them more successful,\u201d said Webb. \u201cFish with specialized widened lateral line canals on the head are probably in a position to do well in more turbid waters and under lower light conditions where visually-oriented fishes might be at a disadvantage.\u201d<\/p>\n


\n\tIn order to study the evolution of the lateral line system, Webb must first study its structure in great detail. She has previously studied the system using dried skeletons and other methods, but microCT provides much more detailed images in three-dimensions, which can be rotated and digitally dissected to learn much more about skeletal structure.<\/p>\n


\n\t\u201cCT scanning technology is allowing us to learn about the internal structure of all sorts of animals in a way we could not before,\u201d Webb said. \u201cIt\u2019s as good as holding a perfect skeleton in your hand, but the resolution is so high that we can see minute features of bone structure that have not been appreciated before.\u201d<\/p>\n


\n\tWebb said that one key insight into the lateral line system that she has gained through the microCT scans is the internal geometry of the canals, which are located over the fish\u2019s eyes and on the underside of their lower jaw. Some canals are narrow, others are wide, and still others are constricted at some point in the canal.<\/p>\n


\n\tThe Eurasian ruffe, for instance, is an invasive species in the Great Lakes that has particularly wide lateral line canals. \u201cThe sensitivity of their lateral line system appears to allow it to outcompete native species, especially in low light conditions,\u201d Webb said. <\/p>\n


\nAnother invasive species, the round goby, is missing some of its canals, which makes it less able to compete for food in less-than-optimal conditions. African ciclids typically have constrictions throughout their canals. The ciclids that Webb is studying also have widened canals and are able to feed at night, something that is very unusual among cichlid fishes. <\/p>\n


\n\u201cFishes with widened canals appear to be using the sensory organs in the canals to find prey, so we expect to see indications of this in the anatomy of their brain,\u201d she explained. \u201cIn the future, we will also use MRI imaging to see if the fish with widened canals have features in the brain that would suggest an enhancement of their lateral line system.\u201d<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

KINGSTON, R.I. \u2013 March 12, 2012 \u2013 溏心vlog免费B站 marine biologist Jacqueline Webb gets an occasional strange look when she brings fish to the Orthopedics Research Lab at Rhode Island Hospital. While the facility\u2019s microCT scanner is typically used to study bone density and diseases like osteoporosis, it is also providing new insights […]<\/p>\n","protected":false},"author":2,"featured_media":62771,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[],"class_list":["post-62769","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archives"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts\/62769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/comments?post=62769"}],"version-history":[{"count":0,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/posts\/62769\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/media\/62771"}],"wp:attachment":[{"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/media?parent=62769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/categories?post=62769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.uri.edu\/news\/wp-json\/wp\/v2\/tags?post=62769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}