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Temperature-mediated outbreak dynamics of the invasive bryozoan Membranipora membranacea in Nova Scotian kelp beds
(2009)
We used underwater videography to examine seasonal and interannual patterns in the cover (on
kelp) of the encrusting epiphytic bryozoan Membranipora membranacea, and associated changes in the
structure and abundance of ...
Herbivory and community organization on a subtidal cobble bed
(2009)
We examined the role of molluscan mesograzers (periwinkles Littorina littorea, limpets
Testudinalia testudinalis and chitons Ischnochiton ruber) in mediating macroalgal succession after a
mass mortality of sea urchins ...
Role of grazing by sea urchins Strongylocentrotus droebachiensis in regulating the invasive alga Codium fragile ssp tomentosoides in Nova Scotia
(2005)
To assess the potential of herbivory in regulating the invasive green alga Codium fragile ssp.
tomentosoides, field and laboratory experiments were conducted with the green sea urchin
Strongylocentrotus droebachiensis ...
Fatty acid profiles in the gonads of the sea urchin Strongylocentrotus droebachiensis on natural algal diets
(2008)
We examined fatty acid (FA) compositions of gonads of the green sea urchin Strongylocentrotus
droebachiensis collected from a grazing aggregation (front) at the edge of a kelp bed and from
barrens dominated by coralline ...
Temporal and spatial variability in settlement and recruitment of echinoderms in kelp beds and barrens in Nova Scotia
(2000-10)
Settlement and recruitment of echinoderms were measured in 2 adjacent habitats: a kelp bed
(Laminaria longicruris) and an echinoid (Strongylocentrotus droebachiensis)-dominated barren ground
at each of 2 sites in the ...
Predicting wave dislodgment of mussels: variation in attachment strength with body size, habitat, and season
(2001)
Breaking waves impose large hydrodynamic forces which may dislodge mussels and other organisms
living on exposed rocky shores. We examined the effect of variation in attachment strength with
size, habitat and season on ...
Behaviour of sea urchin Strongylocentrotus droebachiensis grazing fronts: food-mediated aggregation and density-dependent facilitation
(2007)
The occurrence of destructive grazing fronts is a common phenomenon in sea urchins, but
mechanisms governing front formation and dynamics remain poorly understood. We experimentally
examined the effect of kelp biomass ...
Fatty acids tracers for native and invasive macroalgae in an experimental food web
(2009)
We assessed the potential of fatty acid (FA) markers for tracing primary production from an
invasive green alga (Codium fragile ssp. fragile) and a native kelp (Saccharina longicruris) through
2 trophic levels in an ...
Competitive interactions between the invasive green alga Codium fragile ssp tomentosoides and native canopy-forming seaweeds in Nova Scotia (Canada)
(2006)
Two concurrent 2 yr experiments were conducted along the Atlantic coast of Nova Scotia (1) to
examine competitive interactions between the invasive green alga Codium fragile ssp. tomentosoides
and canopy-forming native ...
Variation in egg spawning among subpopulations of sea urchins Strongylocentrotus droebachiensis: a theoretical approach
(2001)
Variation in zygote production, by determining the initial size of the larvalpool, can aff ect
the population dynamics of marine invertebrates with a planktonic larval stage. In this paper, we
model temporal and spatial ...