17 Young Dae Kim Jae-Suk Choi Journal of Animal and Plant Sciences JAPS 20172017/06/01 27 3 1039-1046 1018-7081 NA <p>A total of 38 methanol and water extracts of macroalgal species (18 brown, 14 red, and 6 green) collected from the Korean coast were investigated for their lethality to brine shrimp larvae. Of the solutions tested, methanol extracts of six species (15.79%) showed larvicidal effects against&nbsp;<em>Artemia</em><em>salina</em>. Aqueous extracts of two species (5.26%) were lethal to&nbsp;<em>A</em>.&nbsp;<em>salina</em>. The brown algae&nbsp;<em>Dictyota</em><em>dichotoma</em>,&nbsp;<em>Ecklonia</em><em>kurome</em>,&nbsp;<em>Ishige</em><em>okamurae</em>,&nbsp;<em>Sargassum</em><em>sagamianum</em>, and&nbsp;<em>Pachydictyon</em><em>coriaceum</em>, and the green algae&nbsp;<em>Enteromorpha</em><em>linza</em>&nbsp;and&nbsp;<em>Ulva</em><em>pertusa</em>, displayed significant larvicidal activity in 2.5% methanol extracts. None of the methanol extracts of the 14 red algae species tested had larvicidal effects. The brown alga&nbsp;<em>Colpomenia</em><em>bullosa</em>and the red alga&nbsp;<em>Lomentaria</em><em>catenata</em> displayed significant larvicidal activity in 2.5% extracts. No larvicidal effects were observed from extracts of green algae. These results offer insight into the larvicidal potential of Korean seaweed extracts.</p> Seaweed extract, Larvicidal effect, Artemiasalina, Enteromorphalinza, Gelidiumamansii Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2017-JAPS-129