Show simple item record

dc.contributor.authorAngra, Aakankshaen_US
dc.date.accessioned2011-05-11T19:14:02Z
dc.date.available2011-05-11T19:14:02Z
dc.date.issued2011-05-09en_US
dc.identifier.urihttp://hdl.handle.net/1853/38817
dc.description.abstractRecent studies have shown that copepods exhibit complex behaviors. Copepods are ocean-dwelling crustaceans that form the base of the marine food web. With the increase in global temperatures, there has been an increase in naturally occurring harmful algal blooms. The purpose of this project was to determine the effects of harmful algal blooms such as Karenia brevis and Alexandrium fundyense on the escape behaviors of the small North Atlantic copepod, Temora longicornis. The experiments were performed in the schlieren optics system tank. A siphon was used to mimic the fish’s mouth. Data were collected via a high speed camera. Detection distance, escape distance, and escape speed were analyzed. Temora longicornis escape ability was not affected in terms of escape speed and escape distance after feeding on A fundyense. Copepods exposed to K.brevis, however, exhibited the furthest escape distance, largest average escape speed, and highest maximum speed of all other treatments. This conspicuous escape behavior increases the probability that they will fall prey to visual predators. Increased predation rates on HAB-affected copepods may facilitate the bioaccumulation of brevetoxins up the marine food chain with possible deleterious effects on humans consuming these fish.en_US
dc.language.isoen_USen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectSchlierenen_US
dc.subjectAlexandrium fundyenseen_US
dc.subjectKarenia brevisen_US
dc.subjectHarmful algal bloomsen_US
dc.subjectEscape behavioren_US
dc.subjectTemora longicornisen_US
dc.subjectSpeeden_US
dc.subjectDetection distanceen_US
dc.titleEscape Behavior in Temora longicornis when exposed to Karenia brevis and Alexandrium fundyenseen_US
dc.typeUndergraduate Thesisen_US
dc.contributor.departmentBiologyen_US
dc.description.advisorYen, Jeannette - Faculty Mentoren_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record