The phrase "algal assemblages in" is correct and usable in written English.
It can be used in scientific or ecological contexts when discussing groups or communities of algae in a specific environment or location.
Example: "The study focused on algal assemblages in freshwater ecosystems to understand their diversity and distribution."
Alternatives: "algal communities in" or "algal populations in".
Herbivory also strongly influences algal assemblages in tropical reef systems [62] [64].
Thriving algal assemblages in reef ecosystems are often extremely diverse, and changes in macroalgal community dynamics (e.g., one macroalgal species being completely replaced by another) can occur without changes in coexisting coral assemblages [3].
Although in situ observations of algal assemblages in the NWHI occurred concurrently with coral surveys via a photoquadrat methodology from 2002 to 2007 [35], percent cover analyses of species level macroalgal populations have only been completed for three islands [5], [36], [37].
Nevertheless, in situ observations of the relative abundance of macroalgae (RAM) across the entire archipelago have served as a proxy for percent coverage data and have proven useful for documenting changes to algal assemblages in response to coral bleaching events [38].
Psychroflexus torquis was originally isolated from algal assemblages in Antarctic multiyear sea ice.
However, no infralittoral algal assemblage in the Mediterranean shows an abrupt decline to almost zero within a month [13] as we observed after Siganus grazing.
The responses of corals to conditions similar to those found underneath algal assemblages were investigated in an aquarium experiment.
In any case, the rapid growth of Cystoseira suggests that recovery of algal assemblages is possible in the short term, should grazing pressure from Siganus be reduced.
Another question is whether Siganus can turn a well-developed algal assemblage into a barren, and how long it takes.
Mediterranean algal assemblages exhibit seasonal changes in biomass, which typically declines after the 'productive season' (spring-summer) [13].
M. V. Wright, Matson, C. W., Baker, L. F., Castellon, B. T., Watkins, P. S., and King, R. S., "Titanium dioxide nanoparticle exposure reduces algal biomass and alters algal assemblage composition in wastewater effluent-dominated stream mesocosms", Science of the Total EnvironmentScience of The Total Environment, 2018.
