NDLI: Mesograzers prefer mostly native seaweeds over the invasive brown seaweed Sargassum muticum

Content Provider	Springer Nature Link
Author	Engelen, Aschwin H. Henriques, Nu Monteiro, Carla Santos, Rui
Copyright Year	2011
Abstract	Introduced algae form globally an increasing problem. Grazing on invaders could provide communities with resistance to algal invasions. In this study, we experimentally tested the food choice of mesoherbivores for native macroalgae versus the invader Sargassum muticum. We performed food choice experiments with common grazers (Gammarus insensibilis, Hydrobia ulvae and Stenosoma nadejda) and both the brown algal invader Sargassum muticum and its native macroalgal competitors, from both the south (Cystoseira humilis, Stypocaulon scoparium, Cladostephus spongiosus, Dictyota dichotoma, Dictyopteris polypodioides, Sargassum vulgare) and southwest (Cystoseira humilis) coast of Portugal. We tested whether (i) the invader affects the growth rates of native macro algae, and (ii) the grazers have a food preference for S. muticum compared to native macroalgae. The presence of S. muticum did not affect the growth rates of any of the native species. Grazers affected the growth rate of all seaweeds, but S. muticum had the highest growth rates with and without grazers. For the south coast set of species, Stypocaulon scoparium was the most and S. muticum was the least or among the least preferred by grazers. The grazers from the southwest coast did not show a specific preference for C. humilis or S. muticum. Contrary to our expectations the food choice of mesoherbivores may provide S. muticum with some competitive advantage on the Portuguese south coast, but this may not be applicable to the Southwest communities.
Starting Page	157
Ending Page	165
Page Count	9
File Format	PDF
ISSN	00188158
Journal	Hydrobiologia
Volume Number	669
Issue Number	1
e-ISSN	15735117
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-03-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Food choice Invasion theory Sargassum muticum Seaweed–grazer interaction Freshwater & Marine Ecology Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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Response of a native, herbivorous snail to the introduced seaweed Sargassum muticum

Understanding the invasion success of Sargassum muticum: herbivore preferences for native and invasive Sargassum spp

Faunal differences between the invasive brown macroalga Sargassum muticum and competing native macroalgae

Anti-microfouling Activity of Lipidic Metabolites from the Invasive Brown Alga Sargassum muticum (Yendo) Fensholt

Periodicity of propagule expulsion and settlement in the competing native and invasive brown seaweeds,Cystoseira humilisandSargassum muticum(Phaeophyta)

Enemy release an unlikely explanation for the invasive potential of the brown alga Sargassum muticum: experimental results, literature review and meta-analysis

Habitat-related differences in recruitment and survival of early recruits of the invasive Sargassum muticum (Phaeophyta, Sargassaceae) in northern Portugal

Investigation of the antifouling constituents from the brown alga Sargassum muticum (Yendo) Fensholt

Environmental factors on egg liberation and germling production of Sargassum muticum

Mesograzers prefer mostly native seaweeds over the invasive brown seaweed Sargassum muticum

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